mirror of
https://github.com/xen-project/xen.git
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Stefano Stabellini
46d89e453b
We need to account for the memory needed by shadow pagetables even for PV guests, because in that case shadow pagetables are used during live migration. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
3823 lines
123 KiB
C
3823 lines
123 KiB
C
/*
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* Copyright (C) 2009 Citrix Ltd.
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* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
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* Author Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; version 2.1 only. with the special
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* exception on linking described in file LICENSE.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*/
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#include "libxl_osdeps.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/select.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <signal.h>
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#include <unistd.h> /* for write, unlink and close */
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#include <stdint.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "libxl.h"
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#include "libxl_utils.h"
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#include "libxl_internal.h"
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#include "flexarray.h"
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#define PAGE_TO_MEMKB(pages) ((pages) * 4)
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int libxl_ctx_init(libxl_ctx *ctx, int version, xentoollog_logger *lg)
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{
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if (version != LIBXL_VERSION)
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return ERROR_VERSION;
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memset(ctx, 0, sizeof(libxl_ctx));
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ctx->lg = lg;
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memset(&ctx->version_info, 0, sizeof(libxl_version_info));
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ctx->xch = xc_interface_open(lg,lg,0);
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if (!ctx->xch) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, errno,
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"cannot open libxc handle");
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return ERROR_FAIL;
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}
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ctx->xsh = xs_daemon_open();
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if (!ctx->xsh)
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ctx->xsh = xs_domain_open();
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if (!ctx->xsh) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, errno,
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"cannot connect to xenstore");
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xc_interface_close(ctx->xch);
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return ERROR_FAIL;
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}
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return 0;
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}
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int libxl_ctx_free(libxl_ctx *ctx)
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{
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if (ctx->xch) xc_interface_close(ctx->xch);
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libxl_version_info_destroy(&ctx->version_info);
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if (ctx->xsh) xs_daemon_close(ctx->xsh);
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return 0;
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}
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void libxl_string_list_destroy(libxl_string_list *psl)
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{
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int i;
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libxl_string_list sl = *psl;
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if (!sl)
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return;
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for (i = 0; sl[i] != NULL; i++)
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free(sl[i]);
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free(sl);
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}
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void libxl_key_value_list_destroy(libxl_key_value_list *pkvl)
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{
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int i;
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libxl_key_value_list kvl = *pkvl;
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if (!kvl)
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return;
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for (i = 0; kvl[i] != NULL; i += 2) {
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free(kvl[i]);
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if (kvl[i + 1])
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free(kvl[i + 1]);
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}
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free(kvl);
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}
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/******************************************************************************/
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int libxl_domain_make(libxl_ctx *ctx, libxl_domain_create_info *info,
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uint32_t *domid)
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{
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libxl__gc gc = LIBXL_INIT_GC(ctx);
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int flags, ret, i, rc;
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char *uuid_string;
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char *rw_paths[] = { "device", "device/suspend/event-channel" , "data"};
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char *ro_paths[] = { "cpu", "memory", "device", "error", "drivers",
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"control", "attr", "messages" };
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char *dom_path, *vm_path;
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struct xs_permissions roperm[2];
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struct xs_permissions rwperm[1];
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xs_transaction_t t;
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xen_domain_handle_t handle;
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uuid_string = libxl__uuid2string(&gc, info->uuid);
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if (!uuid_string) {
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libxl__free_all(&gc);
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return ERROR_NOMEM;
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}
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flags = info->hvm ? XEN_DOMCTL_CDF_hvm_guest : 0;
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flags |= info->hap ? XEN_DOMCTL_CDF_hap : 0;
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flags |= info->oos ? 0 : XEN_DOMCTL_CDF_oos_off;
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*domid = -1;
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/* Ultimately, handle is an array of 16 uint8_t, same as uuid */
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libxl_uuid_copy((libxl_uuid *)handle, &info->uuid);
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ret = xc_domain_create(ctx->xch, info->ssidref, handle, flags, domid);
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if (ret < 0) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, ret, "domain creation fail");
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libxl__free_all(&gc);
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return ERROR_FAIL;
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}
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ret = xc_cpupool_movedomain(ctx->xch, info->poolid, *domid);
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if (ret < 0) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, ret, "domain move fail");
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libxl__free_all(&gc);
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return ERROR_FAIL;
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}
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dom_path = libxl__xs_get_dompath(&gc, *domid);
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if (!dom_path) {
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libxl__free_all(&gc);
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return ERROR_FAIL;
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}
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vm_path = libxl__sprintf(&gc, "/vm/%s", uuid_string);
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if (!vm_path) {
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LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "cannot allocate create paths");
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libxl__free_all(&gc);
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return ERROR_FAIL;
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}
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roperm[0].id = 0;
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roperm[0].perms = XS_PERM_NONE;
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roperm[1].id = *domid;
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roperm[1].perms = XS_PERM_READ;
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rwperm[0].id = *domid;
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rwperm[0].perms = XS_PERM_NONE;
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retry_transaction:
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t = xs_transaction_start(ctx->xsh);
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xs_rm(ctx->xsh, t, dom_path);
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xs_mkdir(ctx->xsh, t, dom_path);
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xs_set_permissions(ctx->xsh, t, dom_path, roperm, ARRAY_SIZE(roperm));
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xs_rm(ctx->xsh, t, vm_path);
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xs_mkdir(ctx->xsh, t, vm_path);
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xs_set_permissions(ctx->xsh, t, vm_path, roperm, ARRAY_SIZE(roperm));
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xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/vm", dom_path), vm_path, strlen(vm_path));
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rc = libxl_domain_rename(ctx, *domid, 0, info->name, t);
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if (rc) {
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libxl__free_all(&gc);
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return rc;
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}
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for (i = 0; i < ARRAY_SIZE(rw_paths); i++) {
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char *path = libxl__sprintf(&gc, "%s/%s", dom_path, rw_paths[i]);
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xs_mkdir(ctx->xsh, t, path);
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xs_set_permissions(ctx->xsh, t, path, rwperm, ARRAY_SIZE(rwperm));
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}
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for (i = 0; i < ARRAY_SIZE(ro_paths); i++) {
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char *path = libxl__sprintf(&gc, "%s/%s", dom_path, ro_paths[i]);
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xs_mkdir(ctx->xsh, t, path);
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xs_set_permissions(ctx->xsh, t, path, roperm, ARRAY_SIZE(roperm));
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}
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xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/uuid", vm_path), uuid_string, strlen(uuid_string));
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xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/name", vm_path), info->name, strlen(info->name));
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if (info->poolname)
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xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/pool_name", vm_path), info->poolname, strlen(info->poolname));
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libxl__xs_writev(&gc, t, dom_path, info->xsdata);
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libxl__xs_writev(&gc, t, libxl__sprintf(&gc, "%s/platform", dom_path), info->platformdata);
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xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/control/platform-feature-multiprocessor-suspend", dom_path), "1", 1);
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if (!xs_transaction_end(ctx->xsh, t, 0))
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if (errno == EAGAIN)
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goto retry_transaction;
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libxl__free_all(&gc);
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return 0;
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}
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int libxl_domain_rename(libxl_ctx *ctx, uint32_t domid,
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const char *old_name, const char *new_name,
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xs_transaction_t trans)
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{
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libxl__gc gc = LIBXL_INIT_GC(ctx);
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char *dom_path = 0;
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const char *name_path;
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char *got_old_name;
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unsigned int got_old_len;
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xs_transaction_t our_trans = 0;
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int rc;
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dom_path = libxl__xs_get_dompath(&gc, domid);
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if (!dom_path) goto x_nomem;
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name_path= libxl__sprintf(&gc, "%s/name", dom_path);
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if (!name_path) goto x_nomem;
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retry_transaction:
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if (!trans) {
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trans = our_trans = xs_transaction_start(ctx->xsh);
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if (!our_trans) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, errno,
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"create xs transaction for domain (re)name");
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goto x_fail;
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}
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}
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if (old_name) {
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got_old_name = xs_read(ctx->xsh, trans, name_path, &got_old_len);
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if (!got_old_name) {
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LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, errno, "check old name"
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" for domain %"PRIu32" allegedly named `%s'",
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domid, old_name);
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goto x_fail;
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}
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if (strcmp(old_name, got_old_name)) {
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LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "domain %"PRIu32" allegedly named "
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"`%s' is actually named `%s' - racing ?",
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domid, old_name, got_old_name);
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free(got_old_name);
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goto x_fail;
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}
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free(got_old_name);
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}
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if (!xs_write(ctx->xsh, trans, name_path,
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new_name, strlen(new_name))) {
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LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "failed to write new name `%s'"
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" for domain %"PRIu32" previously named `%s'",
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new_name, domid, old_name);
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goto x_fail;
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}
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if (our_trans) {
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if (!xs_transaction_end(ctx->xsh, our_trans, 0)) {
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trans = our_trans = 0;
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if (errno != EAGAIN) {
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LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "failed to commit new name `%s'"
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" for domain %"PRIu32" previously named `%s'",
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new_name, domid, old_name);
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goto x_fail;
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}
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LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "need to retry rename transaction"
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" for domain %"PRIu32" (name_path=\"%s\", new_name=\"%s\")",
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domid, name_path, new_name);
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goto retry_transaction;
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}
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our_trans = 0;
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}
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rc = 0;
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x_rc:
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if (our_trans) xs_transaction_end(ctx->xsh, our_trans, 1);
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libxl__free_all(&gc);
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return rc;
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x_fail: rc = ERROR_FAIL; goto x_rc;
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x_nomem: rc = ERROR_NOMEM; goto x_rc;
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}
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int libxl_domain_build(libxl_ctx *ctx, libxl_domain_build_info *info, uint32_t domid, libxl_domain_build_state *state)
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{
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libxl__gc gc = LIBXL_INIT_GC(ctx);
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char **vments = NULL, **localents = NULL;
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struct timeval start_time;
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int i, ret;
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ret = libxl__build_pre(ctx, domid, info, state);
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if (ret)
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goto out;
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gettimeofday(&start_time, NULL);
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if (info->hvm) {
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ret = libxl__build_hvm(ctx, domid, info, state);
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if (ret)
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goto out;
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vments = libxl__calloc(&gc, 7, sizeof(char *));
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vments[0] = "rtc/timeoffset";
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vments[1] = (info->u.hvm.timeoffset) ? info->u.hvm.timeoffset : "";
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vments[2] = "image/ostype";
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vments[3] = "hvm";
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vments[4] = "start_time";
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vments[5] = libxl__sprintf(&gc, "%lu.%02d", start_time.tv_sec,(int)start_time.tv_usec/10000);
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} else {
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ret = libxl__build_pv(ctx, domid, info, state);
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if (ret)
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goto out;
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vments = libxl__calloc(&gc, 11, sizeof(char *));
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i = 0;
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vments[i++] = "image/ostype";
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vments[i++] = "linux";
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vments[i++] = "image/kernel";
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vments[i++] = (char*) info->kernel.path;
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vments[i++] = "start_time";
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vments[i++] = libxl__sprintf(&gc, "%lu.%02d", start_time.tv_sec,(int)start_time.tv_usec/10000);
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if (info->u.pv.ramdisk.path) {
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vments[i++] = "image/ramdisk";
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vments[i++] = (char*) info->u.pv.ramdisk.path;
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}
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if (info->u.pv.cmdline) {
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vments[i++] = "image/cmdline";
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vments[i++] = (char*) info->u.pv.cmdline;
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}
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}
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ret = libxl__build_post(ctx, domid, info, state, vments, localents);
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out:
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libxl__file_reference_unmap(&info->kernel);
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if (!info->hvm)
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libxl__file_reference_unmap(&info->u.pv.ramdisk);
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libxl__free_all(&gc);
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return ret;
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}
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|
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int libxl_domain_restore(libxl_ctx *ctx, libxl_domain_build_info *info,
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uint32_t domid, int fd, libxl_domain_build_state *state,
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libxl_device_model_info *dm_info)
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{
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libxl__gc gc = LIBXL_INIT_GC(ctx);
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char **vments = NULL, **localents = NULL;
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struct timeval start_time;
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int i, ret, esave, flags;
|
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ret = libxl__build_pre(ctx, domid, info, state);
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if (ret)
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goto out;
|
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ret = libxl__domain_restore_common(ctx, domid, info, state, fd);
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if (ret)
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goto out;
|
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gettimeofday(&start_time, NULL);
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|
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if (info->hvm) {
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vments = libxl__calloc(&gc, 7, sizeof(char *));
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vments[0] = "rtc/timeoffset";
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vments[1] = (info->u.hvm.timeoffset) ? info->u.hvm.timeoffset : "";
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vments[2] = "image/ostype";
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vments[3] = "hvm";
|
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vments[4] = "start_time";
|
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vments[5] = libxl__sprintf(&gc, "%lu.%02d", start_time.tv_sec,(int)start_time.tv_usec/10000);
|
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} else {
|
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vments = libxl__calloc(&gc, 11, sizeof(char *));
|
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i = 0;
|
|
vments[i++] = "image/ostype";
|
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vments[i++] = "linux";
|
|
vments[i++] = "image/kernel";
|
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vments[i++] = (char*) info->kernel.path;
|
|
vments[i++] = "start_time";
|
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vments[i++] = libxl__sprintf(&gc, "%lu.%02d", start_time.tv_sec,(int)start_time.tv_usec/10000);
|
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if (info->u.pv.ramdisk.path) {
|
|
vments[i++] = "image/ramdisk";
|
|
vments[i++] = (char*) info->u.pv.ramdisk.path;
|
|
}
|
|
if (info->u.pv.cmdline) {
|
|
vments[i++] = "image/cmdline";
|
|
vments[i++] = (char*) info->u.pv.cmdline;
|
|
}
|
|
}
|
|
ret = libxl__build_post(ctx, domid, info, state, vments, localents);
|
|
if (ret)
|
|
goto out;
|
|
|
|
dm_info->saved_state = NULL;
|
|
if (info->hvm) {
|
|
ret = asprintf(&dm_info->saved_state,
|
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"/var/lib/xen/qemu-save.%d", domid);
|
|
ret = (ret < 0) ? ERROR_FAIL : 0;
|
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}
|
|
|
|
out:
|
|
libxl__file_reference_unmap(&info->kernel);
|
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if (!info->hvm)
|
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libxl__file_reference_unmap(&info->u.pv.ramdisk);
|
|
|
|
esave = errno;
|
|
|
|
flags = fcntl(fd, F_GETFL);
|
|
if (flags == -1) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "unable to get flags on restore fd");
|
|
} else {
|
|
flags &= ~O_NONBLOCK;
|
|
if (fcntl(fd, F_SETFL, flags) == -1)
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "unable to put restore fd"
|
|
" back to blocking mode");
|
|
}
|
|
|
|
errno = esave;
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
int libxl_domain_resume(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc = 0;
|
|
|
|
if (libxl__domain_is_hvm(ctx, domid)) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "Called domain_resume on "
|
|
"non-cooperative hvm domain %u", domid);
|
|
rc = ERROR_NI;
|
|
goto out;
|
|
}
|
|
if (xc_domain_resume(ctx->xch, domid, 1)) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"xc_domain_resume failed for domain %u",
|
|
domid);
|
|
rc = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
if (!xs_resume_domain(ctx->xsh, domid)) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"xs_resume_domain failed for domain %u",
|
|
domid);
|
|
rc = ERROR_FAIL;
|
|
}
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Preserves a domain but rewrites xenstore etc to make it unique so
|
|
* that the domain can be restarted.
|
|
*
|
|
* Does not modify info so that it may be reused.
|
|
*/
|
|
int libxl_domain_preserve(libxl_ctx *ctx, uint32_t domid,
|
|
libxl_domain_create_info *info, const char *name_suffix, libxl_uuid new_uuid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
struct xs_permissions roperm[2];
|
|
xs_transaction_t t;
|
|
char *preserved_name;
|
|
char *uuid_string;
|
|
char *vm_path;
|
|
char *dom_path;
|
|
|
|
int rc;
|
|
|
|
preserved_name = libxl__sprintf(&gc, "%s%s", info->name, name_suffix);
|
|
if (!preserved_name) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_NOMEM;
|
|
}
|
|
|
|
uuid_string = libxl__uuid2string(&gc, new_uuid);
|
|
if (!uuid_string) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_NOMEM;
|
|
}
|
|
|
|
dom_path = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dom_path) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
vm_path = libxl__sprintf(&gc, "/vm/%s", uuid_string);
|
|
if (!vm_path) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
roperm[0].id = 0;
|
|
roperm[0].perms = XS_PERM_NONE;
|
|
roperm[1].id = domid;
|
|
roperm[1].perms = XS_PERM_READ;
|
|
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
xs_rm(ctx->xsh, t, vm_path);
|
|
xs_mkdir(ctx->xsh, t, vm_path);
|
|
xs_set_permissions(ctx->xsh, t, vm_path, roperm, ARRAY_SIZE(roperm));
|
|
|
|
xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/vm", dom_path), vm_path, strlen(vm_path));
|
|
rc = libxl_domain_rename(ctx, domid, info->name, preserved_name, t);
|
|
if (rc) return rc;
|
|
|
|
xs_write(ctx->xsh, t, libxl__sprintf(&gc, "%s/uuid", vm_path), uuid_string, strlen(uuid_string));
|
|
|
|
if (!xs_transaction_end(ctx->xsh, t, 0))
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
static void xcinfo2xlinfo(const xc_domaininfo_t *xcinfo,
|
|
libxl_dominfo *xlinfo)
|
|
{
|
|
memcpy(&(xlinfo->uuid), xcinfo->handle, sizeof(xen_domain_handle_t));
|
|
xlinfo->domid = xcinfo->domain;
|
|
|
|
xlinfo->dying = !!(xcinfo->flags&XEN_DOMINF_dying);
|
|
xlinfo->shutdown = !!(xcinfo->flags&XEN_DOMINF_shutdown);
|
|
xlinfo->paused = !!(xcinfo->flags&XEN_DOMINF_paused);
|
|
xlinfo->blocked = !!(xcinfo->flags&XEN_DOMINF_blocked);
|
|
xlinfo->running = !!(xcinfo->flags&XEN_DOMINF_running);
|
|
|
|
if (xlinfo->shutdown || xlinfo->dying)
|
|
xlinfo->shutdown_reason = (xcinfo->flags>>XEN_DOMINF_shutdownshift) & XEN_DOMINF_shutdownmask;
|
|
else
|
|
xlinfo->shutdown_reason = ~0;
|
|
|
|
xlinfo->current_memkb = PAGE_TO_MEMKB(xcinfo->tot_pages);
|
|
xlinfo->max_memkb = PAGE_TO_MEMKB(xcinfo->max_pages);
|
|
xlinfo->cpu_time = xcinfo->cpu_time;
|
|
xlinfo->vcpu_max_id = xcinfo->max_vcpu_id;
|
|
xlinfo->vcpu_online = xcinfo->nr_online_vcpus;
|
|
}
|
|
|
|
libxl_dominfo * libxl_list_domain(libxl_ctx *ctx, int *nb_domain)
|
|
{
|
|
libxl_dominfo *ptr;
|
|
int i, ret;
|
|
xc_domaininfo_t info[1024];
|
|
int size = 1024;
|
|
|
|
ptr = calloc(size, sizeof(libxl_dominfo));
|
|
if (!ptr) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "allocating domain info");
|
|
return NULL;
|
|
}
|
|
|
|
ret = xc_domain_getinfolist(ctx->xch, 0, 1024, info);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "geting domain info list");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < ret; i++) {
|
|
xcinfo2xlinfo(&info[i], &ptr[i]);
|
|
}
|
|
*nb_domain = ret;
|
|
return ptr;
|
|
}
|
|
|
|
int libxl_domain_info(libxl_ctx *ctx, libxl_dominfo *info_r,
|
|
uint32_t domid) {
|
|
xc_domaininfo_t xcinfo;
|
|
int ret;
|
|
|
|
ret = xc_domain_getinfolist(ctx->xch, domid, 1, &xcinfo);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "geting domain info list");
|
|
return ERROR_FAIL;
|
|
}
|
|
if (ret==0 || xcinfo.domain != domid) return ERROR_INVAL;
|
|
|
|
xcinfo2xlinfo(&xcinfo, info_r);
|
|
return 0;
|
|
}
|
|
|
|
libxl_cpupoolinfo * libxl_list_cpupool(libxl_ctx *ctx, int *nb_pool)
|
|
{
|
|
libxl_cpupoolinfo *ptr, *tmp;
|
|
int i;
|
|
xc_cpupoolinfo_t *info;
|
|
uint32_t poolid;
|
|
|
|
ptr = NULL;
|
|
|
|
poolid = 0;
|
|
for (i = 0;; i++) {
|
|
info = xc_cpupool_getinfo(ctx->xch, poolid);
|
|
if (info == NULL)
|
|
break;
|
|
tmp = realloc(ptr, (i + 1) * sizeof(libxl_cpupoolinfo));
|
|
if (!tmp) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "allocating cpupool info");
|
|
free(ptr);
|
|
xc_cpupool_infofree(ctx->xch, info);
|
|
return NULL;
|
|
}
|
|
ptr = tmp;
|
|
ptr[i].poolid = info->cpupool_id;
|
|
ptr[i].sched_id = info->sched_id;
|
|
ptr[i].n_dom = info->n_dom;
|
|
if (libxl_cpumap_alloc(ctx, &ptr[i].cpumap)) {
|
|
xc_cpupool_infofree(ctx->xch, info);
|
|
break;
|
|
}
|
|
memcpy(ptr[i].cpumap.map, info->cpumap, ptr[i].cpumap.size);
|
|
poolid = info->cpupool_id + 1;
|
|
xc_cpupool_infofree(ctx->xch, info);
|
|
}
|
|
|
|
*nb_pool = i;
|
|
return ptr;
|
|
}
|
|
|
|
/* this API call only list VM running on this host. a VM can be an aggregate of multiple domains. */
|
|
libxl_vminfo * libxl_list_vm(libxl_ctx *ctx, int *nb_vm)
|
|
{
|
|
libxl_vminfo *ptr;
|
|
int index, i, ret;
|
|
xc_domaininfo_t info[1024];
|
|
int size = 1024;
|
|
|
|
ptr = calloc(size, sizeof(libxl_dominfo));
|
|
if (!ptr)
|
|
return NULL;
|
|
|
|
ret = xc_domain_getinfolist(ctx->xch, 1, 1024, info);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "geting domain info list");
|
|
return NULL;
|
|
}
|
|
for (index = i = 0; i < ret; i++) {
|
|
if (libxl_is_stubdom(ctx, info[i].domain, NULL))
|
|
continue;
|
|
memcpy(&(ptr[index].uuid), info[i].handle, sizeof(xen_domain_handle_t));
|
|
ptr[index].domid = info[i].domain;
|
|
|
|
index++;
|
|
}
|
|
*nb_vm = index;
|
|
return ptr;
|
|
}
|
|
|
|
int libxl_domain_suspend(libxl_ctx *ctx, libxl_domain_suspend_info *info,
|
|
uint32_t domid, int fd)
|
|
{
|
|
int hvm = libxl__domain_is_hvm(ctx, domid);
|
|
int live = info != NULL && info->flags & XL_SUSPEND_LIVE;
|
|
int debug = info != NULL && info->flags & XL_SUSPEND_DEBUG;
|
|
int rc = 0;
|
|
|
|
rc = libxl__domain_suspend_common(ctx, domid, fd, hvm, live, debug);
|
|
if (!rc && hvm)
|
|
rc = libxl__domain_save_device_model(ctx, domid, fd);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_domain_pause(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
int ret;
|
|
ret = xc_domain_pause(ctx->xch, domid);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "pausing domain %d", domid);
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_domain_core_dump(libxl_ctx *ctx, uint32_t domid,
|
|
const char *filename)
|
|
{
|
|
int ret;
|
|
ret = xc_domain_dumpcore(ctx->xch, domid, filename);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "core dumping domain %d to %s",
|
|
domid, filename);
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_domain_unpause(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *path;
|
|
char *state;
|
|
int ret, rc = 0;
|
|
|
|
if (libxl__domain_is_hvm(ctx, domid)) {
|
|
path = libxl__sprintf(&gc, "/local/domain/0/device-model/%d/state", domid);
|
|
state = libxl__xs_read(&gc, XBT_NULL, path);
|
|
if (state != NULL && !strcmp(state, "paused")) {
|
|
libxl__xs_write(&gc, XBT_NULL, libxl__sprintf(&gc, "/local/domain/0/device-model/%d/command", domid), "continue");
|
|
libxl__wait_for_device_model(ctx, domid, "running", NULL, NULL);
|
|
}
|
|
}
|
|
ret = xc_domain_unpause(ctx->xch, domid);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "unpausing domain %d", domid);
|
|
rc = ERROR_FAIL;
|
|
}
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
static char *req_table[] = {
|
|
[0] = "poweroff",
|
|
[1] = "reboot",
|
|
[2] = "suspend",
|
|
[3] = "crash",
|
|
[4] = "halt",
|
|
};
|
|
|
|
int libxl_domain_shutdown(libxl_ctx *ctx, uint32_t domid, int req)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *shutdown_path;
|
|
char *dom_path;
|
|
|
|
if (req > ARRAY_SIZE(req_table)) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_INVAL;
|
|
}
|
|
|
|
dom_path = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dom_path) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
shutdown_path = libxl__sprintf(&gc, "%s/control/shutdown", dom_path);
|
|
|
|
xs_write(ctx->xsh, XBT_NULL, shutdown_path, req_table[req], strlen(req_table[req]));
|
|
if (libxl__domain_is_hvm(ctx,domid)) {
|
|
unsigned long acpi_s_state = 0;
|
|
unsigned long pvdriver = 0;
|
|
int ret;
|
|
ret = xc_get_hvm_param(ctx->xch, domid, HVM_PARAM_ACPI_S_STATE, &acpi_s_state);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting ACPI S-state");
|
|
return ERROR_FAIL;
|
|
}
|
|
ret = xc_get_hvm_param(ctx->xch, domid, HVM_PARAM_CALLBACK_IRQ, &pvdriver);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting HVM callback IRQ");
|
|
return ERROR_FAIL;
|
|
}
|
|
if (!pvdriver || acpi_s_state != 0) {
|
|
ret = xc_domain_shutdown(ctx->xch, domid, req);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "unpausing domain");
|
|
return ERROR_FAIL;
|
|
}
|
|
}
|
|
}
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_get_wait_fd(libxl_ctx *ctx, int *fd)
|
|
{
|
|
*fd = xs_fileno(ctx->xsh);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_wait_for_domain_death(libxl_ctx *ctx, uint32_t domid, libxl_waiter *waiter)
|
|
{
|
|
waiter->path = strdup("@releaseDomain");
|
|
if (asprintf(&(waiter->token), "%d", LIBXL_EVENT_DOMAIN_DEATH) < 0)
|
|
return -1;
|
|
if (!xs_watch(ctx->xsh, waiter->path, waiter->token))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int libxl_wait_for_disk_ejects(libxl_ctx *ctx, uint32_t guest_domid, libxl_device_disk *disks, int num_disks, libxl_waiter *waiter)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int i, rc = -1;
|
|
uint32_t domid = libxl_get_stubdom_id(ctx, guest_domid);
|
|
|
|
if (!domid)
|
|
domid = guest_domid;
|
|
|
|
for (i = 0; i < num_disks; i++) {
|
|
if (asprintf(&(waiter[i].path), "%s/device/vbd/%d/eject",
|
|
libxl__xs_get_dompath(&gc, domid),
|
|
libxl__device_disk_dev_number(disks[i].virtpath)) < 0)
|
|
goto out;
|
|
if (asprintf(&(waiter[i].token), "%d", LIBXL_EVENT_DISK_EJECT) < 0)
|
|
goto out;
|
|
xs_watch(ctx->xsh, waiter->path, waiter->token);
|
|
}
|
|
rc = 0;
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_get_event(libxl_ctx *ctx, libxl_event *event)
|
|
{
|
|
unsigned int num;
|
|
char **events = xs_read_watch(ctx->xsh, &num);
|
|
if (num != 2) {
|
|
free(events);
|
|
return ERROR_FAIL;
|
|
}
|
|
event->path = strdup(events[XS_WATCH_PATH]);
|
|
event->token = strdup(events[XS_WATCH_TOKEN]);
|
|
event->type = atoi(event->token);
|
|
free(events);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_stop_waiting(libxl_ctx *ctx, libxl_waiter *waiter)
|
|
{
|
|
if (!xs_unwatch(ctx->xsh, waiter->path, waiter->token))
|
|
return ERROR_FAIL;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
int libxl_free_event(libxl_event *event)
|
|
{
|
|
free(event->path);
|
|
free(event->token);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_free_waiter(libxl_waiter *waiter)
|
|
{
|
|
free(waiter->path);
|
|
free(waiter->token);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_event_get_domain_death_info(libxl_ctx *ctx, uint32_t domid, libxl_event *event, libxl_dominfo *info)
|
|
{
|
|
if (libxl_domain_info(ctx, info, domid) < 0)
|
|
return 0;
|
|
|
|
if (info->running || (!info->shutdown && !info->dying))
|
|
return ERROR_INVAL;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int libxl_event_get_disk_eject_info(libxl_ctx *ctx, uint32_t domid, libxl_event *event, libxl_device_disk *disk)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *path;
|
|
char *backend;
|
|
char *value;
|
|
|
|
value = libxl__xs_read(&gc, XBT_NULL, event->path);
|
|
|
|
if (!value || strcmp(value, "eject")) {
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
path = strdup(event->path);
|
|
path[strlen(path) - 6] = '\0';
|
|
backend = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend", path));
|
|
|
|
disk->backend_domid = 0;
|
|
disk->domid = domid;
|
|
disk->physpath = NULL;
|
|
disk->phystype = 0;
|
|
/* this value is returned to the user: do not free right away */
|
|
disk->virtpath = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/dev", backend));
|
|
disk->unpluggable = 1;
|
|
disk->readwrite = 0;
|
|
disk->is_cdrom = 1;
|
|
|
|
free(path);
|
|
libxl__free_all(&gc);
|
|
return 1;
|
|
}
|
|
|
|
static int libxl_destroy_device_model(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *pid;
|
|
int ret;
|
|
|
|
pid = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "/local/domain/%d/image/device-model-pid", domid));
|
|
if (!pid) {
|
|
int stubdomid = libxl_get_stubdom_id(ctx, domid);
|
|
if (!stubdomid) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "Couldn't find device model's pid");
|
|
ret = ERROR_INVAL;
|
|
goto out;
|
|
}
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Device model is a stubdom, domid=%d\n", stubdomid);
|
|
ret = libxl_domain_destroy(ctx, stubdomid, 0);
|
|
if (ret)
|
|
goto out;
|
|
} else {
|
|
ret = kill(atoi(pid), SIGHUP);
|
|
if (ret < 0 && errno == ESRCH) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "Device Model already exited");
|
|
ret = 0;
|
|
} else if (ret == 0) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "Device Model signaled");
|
|
ret = 0;
|
|
} else {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "failed to kill Device Model [%d]",
|
|
atoi(pid));
|
|
ret = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
}
|
|
xs_rm(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "/local/domain/0/device-model/%d", domid));
|
|
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
int libxl_domain_destroy(libxl_ctx *ctx, uint32_t domid, int force)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dom_path;
|
|
char *vm_path;
|
|
int rc, dm_present;
|
|
|
|
if (libxl__domain_is_hvm(ctx, domid)) {
|
|
dm_present = 1;
|
|
} else {
|
|
char *pid;
|
|
pid = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "/local/domain/%d/image/device-model-pid", domid));
|
|
dm_present = (pid != NULL);
|
|
}
|
|
|
|
dom_path = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dom_path) {
|
|
rc = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
|
|
if (libxl_device_pci_shutdown(ctx, domid) < 0)
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "pci shutdown failed for domid %d", domid);
|
|
if (dm_present) {
|
|
xs_write(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "/local/domain/0/device-model/%d/command", domid),
|
|
"shutdown", strlen("shutdown"));
|
|
}
|
|
rc = xc_domain_pause(ctx->xch, domid);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_domain_pause failed for %d", domid);
|
|
}
|
|
if (dm_present) {
|
|
if (libxl_destroy_device_model(ctx, domid) < 0)
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "libxl_destroy_device_model failed for %d", domid);
|
|
}
|
|
if (libxl__devices_destroy(ctx, domid, force) < 0)
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "libxl_destroy_devices failed for %d", domid);
|
|
|
|
vm_path = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/vm", dom_path));
|
|
if (vm_path)
|
|
if (!xs_rm(ctx->xsh, XBT_NULL, vm_path))
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "xs_rm failed for %s", vm_path);
|
|
|
|
if (!xs_rm(ctx->xsh, XBT_NULL, dom_path))
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "xs_rm failed for %s", dom_path);
|
|
|
|
libxl__userdata_destroyall(ctx, domid);
|
|
|
|
rc = xc_domain_destroy(ctx->xch, domid);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "xc_domain_destroy failed for %d", domid);
|
|
rc = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
rc = 0;
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_console_exec(libxl_ctx *ctx, uint32_t domid, int cons_num, libxl_console_constype type)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *p = libxl__sprintf(&gc, "%s/xenconsole", libxl_private_bindir_path());
|
|
char *domid_s = libxl__sprintf(&gc, "%d", domid);
|
|
char *cons_num_s = libxl__sprintf(&gc, "%d", cons_num);
|
|
char *cons_type_s;
|
|
|
|
switch (type) {
|
|
case LIBXL_CONSTYPE_PV:
|
|
cons_type_s = "pv";
|
|
break;
|
|
case LIBXL_CONSTYPE_SERIAL:
|
|
cons_type_s = "serial";
|
|
break;
|
|
default:
|
|
goto out;
|
|
}
|
|
|
|
execl(p, p, domid_s, "--num", cons_num_s, "--type", cons_type_s, (void *)NULL);
|
|
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
int libxl_primary_console_exec(libxl_ctx *ctx, uint32_t domid_vm)
|
|
{
|
|
uint32_t stubdomid = libxl_get_stubdom_id(ctx, domid_vm);
|
|
if (stubdomid)
|
|
return libxl_console_exec(ctx, stubdomid, 1, LIBXL_CONSTYPE_PV);
|
|
else {
|
|
if (libxl__domain_is_hvm(ctx, domid_vm))
|
|
return libxl_console_exec(ctx, domid_vm, 0, LIBXL_CONSTYPE_SERIAL);
|
|
else
|
|
return libxl_console_exec(ctx, domid_vm, 0, LIBXL_CONSTYPE_PV);
|
|
}
|
|
}
|
|
|
|
int libxl_vncviewer_exec(libxl_ctx *ctx, uint32_t domid, int autopass)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
const char *vnc_port, *vfb_back;
|
|
const char *vnc_listen = NULL, *vnc_pass = NULL;
|
|
int port = 0, autopass_fd = -1;
|
|
char *vnc_bin, *args[] = {
|
|
"vncviewer",
|
|
NULL, /* hostname:display */
|
|
NULL, /* -autopass */
|
|
NULL,
|
|
};
|
|
|
|
vnc_port = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc,
|
|
"/local/domain/%d/console/vnc-port", domid));
|
|
if ( vnc_port )
|
|
port = atoi(vnc_port) - 5900;
|
|
|
|
vfb_back = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc,
|
|
"/local/domain/%d/device/vfb/0/backend", domid));
|
|
if ( vfb_back ) {
|
|
vnc_listen = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc,
|
|
"/local/domain/%d/console/vnc-listen", domid));
|
|
if ( autopass )
|
|
vnc_pass = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc,
|
|
"/local/domain/%d/console/vnc-pass", domid));
|
|
}
|
|
|
|
if ( NULL == vnc_listen )
|
|
vnc_listen = "localhost";
|
|
|
|
if ( (vnc_bin = getenv("VNCVIEWER")) )
|
|
args[0] = vnc_bin;
|
|
|
|
args[1] = libxl__sprintf(&gc, "%s:%d", vnc_listen, port);
|
|
|
|
if ( vnc_pass ) {
|
|
char tmpname[] = "/tmp/vncautopass.XXXXXX";
|
|
autopass_fd = mkstemp(tmpname);
|
|
if ( autopass_fd < 0 )
|
|
goto skip_autopass;
|
|
|
|
if ( unlink(tmpname) )
|
|
/* should never happen */
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "unlink %s failed", tmpname);
|
|
|
|
if ( libxl_write_exactly(ctx, autopass_fd, vnc_pass, strlen(vnc_pass),
|
|
tmpname, "vnc password") ) {
|
|
do { close(autopass_fd); } while(errno == EINTR);
|
|
goto skip_autopass;
|
|
}
|
|
|
|
args[2] = "-autopass";
|
|
}
|
|
|
|
skip_autopass:
|
|
libxl__free_all(&gc);
|
|
libxl__exec(autopass_fd, -1, -1, args[0], args);
|
|
return 0;
|
|
}
|
|
|
|
static char ** libxl_build_device_model_args_old(libxl__gc *gc,
|
|
libxl_device_model_info *info,
|
|
libxl_device_nic *vifs,
|
|
int num_vifs)
|
|
{
|
|
int num = 0, i;
|
|
flexarray_t *dm_args;
|
|
dm_args = flexarray_make(16, 1);
|
|
|
|
if (!dm_args)
|
|
return NULL;
|
|
|
|
flexarray_set(dm_args, num++, "qemu-dm");
|
|
flexarray_set(dm_args, num++, "-d");
|
|
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d", info->domid));
|
|
|
|
if (info->dom_name) {
|
|
flexarray_set(dm_args, num++, "-domain-name");
|
|
flexarray_set(dm_args, num++, info->dom_name);
|
|
}
|
|
if (info->vnc || info->vncdisplay || info->vnclisten || info->vncunused) {
|
|
flexarray_set(dm_args, num++, "-vnc");
|
|
if (info->vncdisplay) {
|
|
if (info->vnclisten && strchr(info->vnclisten, ':') == NULL) {
|
|
flexarray_set(
|
|
dm_args, num++,
|
|
libxl__sprintf(gc, "%s:%d%s",
|
|
info->vnclisten,
|
|
info->vncdisplay,
|
|
info->vncpasswd ? ",password" : ""));
|
|
} else {
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "127.0.0.1:%d", info->vncdisplay));
|
|
}
|
|
} else if (info->vnclisten) {
|
|
if (strchr(info->vnclisten, ':') != NULL) {
|
|
flexarray_set(dm_args, num++, info->vnclisten);
|
|
} else {
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%s:0", info->vnclisten));
|
|
}
|
|
} else {
|
|
flexarray_set(dm_args, num++, "127.0.0.1:0");
|
|
}
|
|
if (info->vncunused) {
|
|
flexarray_set(dm_args, num++, "-vncunused");
|
|
}
|
|
}
|
|
if (info->sdl) {
|
|
flexarray_set(dm_args, num++, "-sdl");
|
|
if (!info->opengl) {
|
|
flexarray_set(dm_args, num++, "-disable-opengl");
|
|
}
|
|
}
|
|
if (info->keymap) {
|
|
flexarray_set(dm_args, num++, "-k");
|
|
flexarray_set(dm_args, num++, info->keymap);
|
|
}
|
|
if (info->nographic && (!info->sdl && !info->vnc)) {
|
|
flexarray_set(dm_args, num++, "-nographic");
|
|
}
|
|
if (info->serial) {
|
|
flexarray_set(dm_args, num++, "-serial");
|
|
flexarray_set(dm_args, num++, info->serial);
|
|
}
|
|
if (info->type == XENFV) {
|
|
int ioemu_vifs = 0;
|
|
|
|
if (info->videoram) {
|
|
flexarray_set(dm_args, num++, "-videoram");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d", info->videoram));
|
|
}
|
|
if (info->stdvga) {
|
|
flexarray_set(dm_args, num++, "-std-vga");
|
|
}
|
|
|
|
if (info->boot) {
|
|
flexarray_set(dm_args, num++, "-boot");
|
|
flexarray_set(dm_args, num++, info->boot);
|
|
}
|
|
if (info->usb || info->usbdevice) {
|
|
flexarray_set(dm_args, num++, "-usb");
|
|
if (info->usbdevice) {
|
|
flexarray_set(dm_args, num++, "-usbdevice");
|
|
flexarray_set(dm_args, num++, info->usbdevice);
|
|
}
|
|
}
|
|
if (info->soundhw) {
|
|
flexarray_set(dm_args, num++, "-soundhw");
|
|
flexarray_set(dm_args, num++, info->soundhw);
|
|
}
|
|
if (info->apic) {
|
|
flexarray_set(dm_args, num++, "-acpi");
|
|
}
|
|
if (info->vcpus > 1) {
|
|
flexarray_set(dm_args, num++, "-vcpus");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d", info->vcpus));
|
|
}
|
|
if (info->vcpu_avail) {
|
|
flexarray_set(dm_args, num++, "-vcpu_avail");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "0x%x", info->vcpu_avail));
|
|
}
|
|
for (i = 0; i < num_vifs; i++) {
|
|
if (vifs[i].nictype == NICTYPE_IOEMU) {
|
|
char *smac = libxl__sprintf(gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
vifs[i].mac[0], vifs[i].mac[1], vifs[i].mac[2],
|
|
vifs[i].mac[3], vifs[i].mac[4], vifs[i].mac[5]);
|
|
char *ifname;
|
|
if (!vifs[i].ifname)
|
|
ifname = libxl__sprintf(gc, "tap%d.%d", info->domid, vifs[i].devid);
|
|
else
|
|
ifname = vifs[i].ifname;
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "nic,vlan=%d,macaddr=%s,model=%s",
|
|
vifs[i].devid, smac, vifs[i].model));
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "tap,vlan=%d,ifname=%s,bridge=%s,script=no",
|
|
vifs[i].devid, ifname, vifs[i].bridge));
|
|
ioemu_vifs++;
|
|
}
|
|
}
|
|
/* If we have no emulated nics, tell qemu not to create any */
|
|
if ( ioemu_vifs == 0 ) {
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, "none");
|
|
}
|
|
}
|
|
if (info->saved_state) {
|
|
flexarray_set(dm_args, num++, "-loadvm");
|
|
flexarray_set(dm_args, num++, info->saved_state);
|
|
}
|
|
for (i = 0; info->extra && info->extra[i] != NULL; i++)
|
|
flexarray_set(dm_args, num++, info->extra[i]);
|
|
flexarray_set(dm_args, num++, "-M");
|
|
if (info->type == XENPV)
|
|
flexarray_set(dm_args, num++, "xenpv");
|
|
else
|
|
flexarray_set(dm_args, num++, "xenfv");
|
|
flexarray_set(dm_args, num++, NULL);
|
|
return (char **) flexarray_contents(dm_args);
|
|
}
|
|
|
|
static char ** libxl_build_device_model_args_new(libxl__gc *gc,
|
|
libxl_device_model_info *info,
|
|
libxl_device_nic *vifs,
|
|
int num_vifs)
|
|
{
|
|
int num = 0, i;
|
|
flexarray_t *dm_args;
|
|
int nb;
|
|
libxl_device_disk *disks;
|
|
|
|
dm_args = flexarray_make(16, 1);
|
|
if (!dm_args)
|
|
return NULL;
|
|
|
|
flexarray_set(dm_args, num++, "qemu-system-xen");
|
|
flexarray_set(dm_args, num++, "-xen-domid");
|
|
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d", info->domid));
|
|
|
|
if (info->dom_name) {
|
|
flexarray_set(dm_args, num++, "-name");
|
|
flexarray_set(dm_args, num++, info->dom_name);
|
|
}
|
|
if (info->vnc || info->vncdisplay || info->vnclisten || info->vncunused) {
|
|
int display = 0;
|
|
const char *listen = "127.0.0.1";
|
|
|
|
flexarray_set(dm_args, num++, "-vnc");
|
|
|
|
if (info->vncdisplay) {
|
|
display = info->vncdisplay;
|
|
if (info->vnclisten && strchr(info->vnclisten, ':') == NULL) {
|
|
listen = info->vnclisten;
|
|
}
|
|
} else if (info->vnclisten) {
|
|
listen = info->vnclisten;
|
|
}
|
|
|
|
if (strchr(listen, ':') != NULL)
|
|
flexarray_set(dm_args, num++,
|
|
libxl__sprintf(gc, "%s%s", listen,
|
|
info->vncunused ? ",to=99" : ""));
|
|
else
|
|
flexarray_set(dm_args, num++,
|
|
libxl__sprintf(gc, "%s:%d%s", listen, display,
|
|
info->vncunused ? ",to=99" : ""));
|
|
}
|
|
if (info->sdl) {
|
|
flexarray_set(dm_args, num++, "-sdl");
|
|
}
|
|
if (info->keymap) {
|
|
flexarray_set(dm_args, num++, "-k");
|
|
flexarray_set(dm_args, num++, info->keymap);
|
|
}
|
|
if (info->nographic && (!info->sdl && !info->vnc)) {
|
|
flexarray_set(dm_args, num++, "-nographic");
|
|
}
|
|
if (info->serial) {
|
|
flexarray_set(dm_args, num++, "-serial");
|
|
flexarray_set(dm_args, num++, info->serial);
|
|
}
|
|
if (info->type == XENFV) {
|
|
int ioemu_vifs = 0;
|
|
|
|
if (info->stdvga) {
|
|
flexarray_set(dm_args, num++, "-vga");
|
|
flexarray_set(dm_args, num++, "std");
|
|
}
|
|
|
|
if (info->boot) {
|
|
flexarray_set(dm_args, num++, "-boot");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "order=%s", info->boot));
|
|
}
|
|
if (info->usb || info->usbdevice) {
|
|
flexarray_set(dm_args, num++, "-usb");
|
|
if (info->usbdevice) {
|
|
flexarray_set(dm_args, num++, "-usbdevice");
|
|
flexarray_set(dm_args, num++, info->usbdevice);
|
|
}
|
|
}
|
|
if (info->soundhw) {
|
|
flexarray_set(dm_args, num++, "-soundhw");
|
|
flexarray_set(dm_args, num++, info->soundhw);
|
|
}
|
|
if (!info->apic) {
|
|
flexarray_set(dm_args, num++, "-no-acpi");
|
|
}
|
|
if (info->vcpus > 1) {
|
|
flexarray_set(dm_args, num++, "-smp");
|
|
if (info->vcpu_avail)
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d,maxcpus=%d", info->vcpus, info->vcpu_avail));
|
|
else
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "%d", info->vcpus));
|
|
}
|
|
for (i = 0; i < num_vifs; i++) {
|
|
if (vifs[i].nictype == NICTYPE_IOEMU) {
|
|
char *smac = libxl__sprintf(gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
vifs[i].mac[0], vifs[i].mac[1], vifs[i].mac[2],
|
|
vifs[i].mac[3], vifs[i].mac[4], vifs[i].mac[5]);
|
|
if (!vifs[i].ifname)
|
|
vifs[i].ifname = libxl__sprintf(gc, "tap%d.%d", info->domid, vifs[i].devid);
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "nic,vlan=%d,macaddr=%s,model=%s",
|
|
vifs[i].devid, smac, vifs[i].model));
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "tap,vlan=%d,ifname=%s,script=no",
|
|
vifs[i].devid, vifs[i].ifname));
|
|
ioemu_vifs++;
|
|
}
|
|
}
|
|
/* If we have no emulated nics, tell qemu not to create any */
|
|
if ( ioemu_vifs == 0 ) {
|
|
flexarray_set(dm_args, num++, "-net");
|
|
flexarray_set(dm_args, num++, "none");
|
|
}
|
|
}
|
|
if (info->saved_state) {
|
|
flexarray_set(dm_args, num++, "-loadvm");
|
|
flexarray_set(dm_args, num++, info->saved_state);
|
|
}
|
|
for (i = 0; info->extra && info->extra[i] != NULL; i++)
|
|
flexarray_set(dm_args, num++, info->extra[i]);
|
|
flexarray_set(dm_args, num++, "-M");
|
|
if (info->type == XENPV)
|
|
flexarray_set(dm_args, num++, "xenpv");
|
|
else
|
|
flexarray_set(dm_args, num++, "xenfv");
|
|
|
|
disks = libxl_device_disk_list(libxl__gc_owner(gc), info->domid, &nb);
|
|
for (i; i < nb; i++) {
|
|
if ( disks[i].is_cdrom ) {
|
|
flexarray_set(dm_args, num++, "-cdrom");
|
|
flexarray_set(dm_args, num++, disks[i].physpath);
|
|
}else{
|
|
flexarray_set(dm_args, num++, libxl__sprintf(gc, "-%s", disks[i].virtpath));
|
|
flexarray_set(dm_args, num++, disks[i].physpath);
|
|
}
|
|
libxl_device_disk_destroy(&disks[i]);
|
|
}
|
|
free(disks);
|
|
flexarray_set(dm_args, num++, NULL);
|
|
return (char **) flexarray_contents(dm_args);
|
|
}
|
|
|
|
static char ** libxl_build_device_model_args(libxl__gc *gc,
|
|
libxl_device_model_info *info,
|
|
libxl_device_nic *vifs,
|
|
int num_vifs)
|
|
{
|
|
libxl_ctx *ctx = libxl__gc_owner(gc);
|
|
int new_qemu;
|
|
|
|
new_qemu = libxl_check_device_model_version(ctx, info->device_model);
|
|
|
|
if (new_qemu == 1) {
|
|
return libxl_build_device_model_args_new(gc, info, vifs, num_vifs);
|
|
} else {
|
|
return libxl_build_device_model_args_old(gc, info, vifs, num_vifs);
|
|
}
|
|
}
|
|
|
|
static void dm_xenstore_record_pid(void *for_spawn, pid_t innerchild)
|
|
{
|
|
libxl_device_model_starting *starting = for_spawn;
|
|
struct xs_handle *xsh;
|
|
char *path = NULL, *pid = NULL;
|
|
int len;
|
|
|
|
if (asprintf(&path, "%s/%s", starting->dom_path, "image/device-model-pid") < 0)
|
|
goto out;
|
|
|
|
len = asprintf(&pid, "%d", innerchild);
|
|
if (len < 0)
|
|
goto out;
|
|
|
|
/* we mustn't use the parent's handle in the child */
|
|
xsh = xs_daemon_open();
|
|
|
|
xs_write(xsh, XBT_NULL, path, pid, len);
|
|
|
|
xs_daemon_close(xsh);
|
|
out:
|
|
free(path);
|
|
free(pid);
|
|
}
|
|
|
|
static int libxl_vfb_and_vkb_from_device_model_info(libxl_ctx *ctx,
|
|
libxl_device_model_info *info,
|
|
libxl_device_vfb *vfb,
|
|
libxl_device_vkb *vkb)
|
|
{
|
|
memset(vfb, 0x00, sizeof(libxl_device_vfb));
|
|
memset(vkb, 0x00, sizeof(libxl_device_vkb));
|
|
|
|
vfb->backend_domid = 0;
|
|
vfb->devid = 0;
|
|
vfb->vnc = info->vnc;
|
|
vfb->vnclisten = info->vnclisten;
|
|
vfb->vncdisplay = info->vncdisplay;
|
|
vfb->vncunused = info->vncunused;
|
|
vfb->vncpasswd = info->vncpasswd;
|
|
vfb->keymap = info->keymap;
|
|
vfb->sdl = info->sdl;
|
|
vfb->opengl = info->opengl;
|
|
|
|
vkb->backend_domid = 0;
|
|
vkb->devid = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int libxl_write_dmargs(libxl_ctx *ctx, int domid, int guest_domid, char **args)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int i;
|
|
char *vm_path;
|
|
char *dmargs, *path;
|
|
int dmargs_size;
|
|
struct xs_permissions roperm[2];
|
|
xs_transaction_t t;
|
|
|
|
roperm[0].id = 0;
|
|
roperm[0].perms = XS_PERM_NONE;
|
|
roperm[1].id = domid;
|
|
roperm[1].perms = XS_PERM_READ;
|
|
|
|
vm_path = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "/local/domain/%d/vm", guest_domid));
|
|
|
|
i = 0;
|
|
dmargs_size = 0;
|
|
while (args[i] != NULL) {
|
|
dmargs_size = dmargs_size + strlen(args[i]) + 1;
|
|
i++;
|
|
}
|
|
dmargs_size++;
|
|
dmargs = (char *) malloc(dmargs_size);
|
|
i = 1;
|
|
dmargs[0] = '\0';
|
|
while (args[i] != NULL) {
|
|
if (strcmp(args[i], "-sdl") && strcmp(args[i], "-M") && strcmp(args[i], "xenfv")) {
|
|
strcat(dmargs, " ");
|
|
strcat(dmargs, args[i]);
|
|
}
|
|
i++;
|
|
}
|
|
path = libxl__sprintf(&gc, "%s/image/dmargs", vm_path);
|
|
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
xs_write(ctx->xsh, t, path, dmargs, strlen(dmargs));
|
|
xs_set_permissions(ctx->xsh, t, path, roperm, ARRAY_SIZE(roperm));
|
|
xs_set_permissions(ctx->xsh, t, libxl__sprintf(&gc, "%s/rtc/timeoffset", vm_path), roperm, ARRAY_SIZE(roperm));
|
|
if (!xs_transaction_end(ctx->xsh, t, 0))
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
free(dmargs);
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
static int libxl_create_stubdom(libxl_ctx *ctx,
|
|
libxl_device_model_info *info,
|
|
libxl_device_disk *disks, int num_disks,
|
|
libxl_device_nic *vifs, int num_vifs,
|
|
libxl_device_vfb *vfb,
|
|
libxl_device_vkb *vkb,
|
|
libxl_device_model_starting **starting_r)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int i, num_console = 1, ret;
|
|
libxl_device_console *console;
|
|
libxl_domain_create_info c_info;
|
|
libxl_domain_build_info b_info;
|
|
libxl_domain_build_state state;
|
|
uint32_t domid;
|
|
char **args;
|
|
struct xs_permissions perm[2];
|
|
xs_transaction_t t;
|
|
libxl_device_model_starting *dm_starting = 0;
|
|
|
|
args = libxl_build_device_model_args(&gc, info, vifs, num_vifs);
|
|
if (!args) {
|
|
ret = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
|
|
memset(&c_info, 0x00, sizeof(libxl_domain_create_info));
|
|
c_info.hvm = 0;
|
|
c_info.name = libxl__sprintf(&gc, "%s-dm", libxl__domid_to_name(&gc, info->domid));
|
|
|
|
libxl_uuid_copy(&c_info.uuid, &info->uuid);
|
|
|
|
memset(&b_info, 0x00, sizeof(libxl_domain_build_info));
|
|
b_info.max_vcpus = 1;
|
|
b_info.max_memkb = 32 * 1024;
|
|
b_info.target_memkb = b_info.max_memkb;
|
|
b_info.kernel.path = libxl__abs_path(&gc, "ioemu-stubdom.gz", libxl_xenfirmwaredir_path());
|
|
b_info.u.pv.cmdline = libxl__sprintf(&gc, " -d %d", info->domid);
|
|
b_info.u.pv.ramdisk.path = "";
|
|
b_info.u.pv.features = "";
|
|
b_info.hvm = 0;
|
|
|
|
ret = libxl_domain_make(ctx, &c_info, &domid);
|
|
if (ret)
|
|
goto out_free;
|
|
ret = libxl_domain_build(ctx, &b_info, domid, &state);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
libxl_write_dmargs(ctx, domid, info->domid, args);
|
|
libxl__xs_write(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/image/device-model-domid", libxl__xs_get_dompath(&gc, info->domid)),
|
|
"%d", domid);
|
|
libxl__xs_write(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/target", libxl__xs_get_dompath(&gc, domid)),
|
|
"%d", info->domid);
|
|
ret = xc_domain_set_target(ctx->xch, domid, info->domid);
|
|
if (ret<0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "setting target domain %d -> %d", domid, info->domid);
|
|
ret = ERROR_FAIL;
|
|
goto out_free;
|
|
}
|
|
xs_set_target(ctx->xsh, domid, info->domid);
|
|
|
|
perm[0].id = domid;
|
|
perm[0].perms = XS_PERM_NONE;
|
|
perm[1].id = info->domid;
|
|
perm[1].perms = XS_PERM_READ;
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
xs_mkdir(ctx->xsh, t, libxl__sprintf(&gc, "/local/domain/0/device-model/%d", info->domid));
|
|
xs_set_permissions(ctx->xsh, t, libxl__sprintf(&gc, "/local/domain/0/device-model/%d", info->domid), perm, ARRAY_SIZE(perm));
|
|
xs_mkdir(ctx->xsh, t, libxl__sprintf(&gc, "/local/domain/%d/device/vfs", domid));
|
|
xs_set_permissions(ctx->xsh, t, libxl__sprintf(&gc, "/local/domain/%d/device/vfs",domid), perm, ARRAY_SIZE(perm));
|
|
if (!xs_transaction_end(ctx->xsh, t, 0))
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
|
|
for (i = 0; i < num_disks; i++) {
|
|
disks[i].domid = domid;
|
|
ret = libxl_device_disk_add(ctx, domid, &disks[i]);
|
|
if (ret)
|
|
goto out_free;
|
|
}
|
|
for (i = 0; i < num_vifs; i++) {
|
|
vifs[i].domid = domid;
|
|
ret = libxl_device_nic_add(ctx, domid, &vifs[i]);
|
|
if (ret)
|
|
goto out_free;
|
|
}
|
|
vfb->domid = domid;
|
|
ret = libxl_device_vfb_add(ctx, domid, vfb);
|
|
if (ret)
|
|
goto out_free;
|
|
vkb->domid = domid;
|
|
ret = libxl_device_vkb_add(ctx, domid, vkb);
|
|
if (ret)
|
|
goto out_free;
|
|
|
|
if (info->serial)
|
|
num_console++;
|
|
|
|
console = libxl__calloc(&gc, num_console, sizeof(libxl_device_console));
|
|
if (!console) {
|
|
ret = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
for (i = 0; i < num_console; i++) {
|
|
console[i].devid = i;
|
|
console[i].consback = LIBXL_CONSBACK_IOEMU;
|
|
console[i].domid = domid;
|
|
if (!i) {
|
|
char *filename;
|
|
char *name = libxl__sprintf(&gc, "qemu-dm-%s", libxl_domid_to_name(ctx, info->domid));
|
|
libxl_create_logfile(ctx, name, &filename);
|
|
console[i].output = libxl__sprintf(&gc, "file:%s", filename);
|
|
console[i].build_state = &state;
|
|
free(filename);
|
|
} else
|
|
console[i].output = "pty";
|
|
ret = libxl_device_console_add(ctx, domid, &console[i]);
|
|
if (ret)
|
|
goto out_free;
|
|
}
|
|
if (libxl_create_xenpv_qemu(ctx, domid, vfb, &dm_starting) < 0) {
|
|
ret = ERROR_FAIL;
|
|
goto out_free;
|
|
}
|
|
if (libxl_confirm_device_model_startup(ctx, dm_starting) < 0) {
|
|
ret = ERROR_FAIL;
|
|
goto out_free;
|
|
}
|
|
|
|
libxl_domain_unpause(ctx, domid);
|
|
|
|
if (starting_r) {
|
|
*starting_r = calloc(sizeof(libxl_device_model_starting), 1);
|
|
(*starting_r)->domid = info->domid;
|
|
(*starting_r)->dom_path = libxl__xs_get_dompath(&gc, info->domid);
|
|
(*starting_r)->for_spawn = NULL;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
out_free:
|
|
free(args);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
int libxl_create_device_model(libxl_ctx *ctx,
|
|
libxl_device_model_info *info,
|
|
libxl_device_disk *disks, int num_disks,
|
|
libxl_device_nic *vifs, int num_vifs,
|
|
libxl_device_model_starting **starting_r)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *path, *logfile;
|
|
int logfile_w, null;
|
|
int rc;
|
|
char **args;
|
|
libxl_device_model_starting buf_starting, *p;
|
|
xs_transaction_t t;
|
|
char *vm_path;
|
|
char **pass_stuff;
|
|
|
|
if (strstr(info->device_model, "stubdom-dm")) {
|
|
libxl_device_vfb vfb;
|
|
libxl_device_vkb vkb;
|
|
|
|
libxl_vfb_and_vkb_from_device_model_info(ctx, info, &vfb, &vkb);
|
|
rc = libxl_create_stubdom(ctx, info, disks, num_disks, vifs, num_vifs, &vfb, &vkb, starting_r);
|
|
goto out;
|
|
}
|
|
|
|
args = libxl_build_device_model_args(&gc, info, vifs, num_vifs);
|
|
if (!args) {
|
|
rc = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
|
|
path = libxl__sprintf(&gc, "/local/domain/0/device-model/%d", info->domid);
|
|
xs_mkdir(ctx->xsh, XBT_NULL, path);
|
|
libxl__xs_write(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/disable_pf", path), "%d", !info->xen_platform_pci);
|
|
|
|
libxl_create_logfile(ctx, libxl__sprintf(&gc, "qemu-dm-%s", info->dom_name), &logfile);
|
|
logfile_w = open(logfile, O_WRONLY|O_CREAT, 0644);
|
|
free(logfile);
|
|
null = open("/dev/null", O_RDONLY);
|
|
|
|
if (starting_r) {
|
|
rc = ERROR_NOMEM;
|
|
*starting_r = calloc(sizeof(libxl_device_model_starting), 1);
|
|
if (!*starting_r)
|
|
goto out_close;
|
|
p = *starting_r;
|
|
p->for_spawn = calloc(sizeof(libxl__spawn_starting), 1);
|
|
} else {
|
|
p = &buf_starting;
|
|
p->for_spawn = NULL;
|
|
}
|
|
|
|
p->domid = info->domid;
|
|
p->dom_path = libxl__xs_get_dompath(&gc, info->domid);
|
|
if (!p->dom_path) {
|
|
rc = ERROR_FAIL;
|
|
goto out_close;
|
|
}
|
|
|
|
if (info->vncpasswd) {
|
|
retry_transaction:
|
|
/* Find uuid and the write the vnc password to xenstore for qemu. */
|
|
t = xs_transaction_start(ctx->xsh);
|
|
vm_path = libxl__xs_read(&gc,t,libxl__sprintf(&gc, "%s/vm", p->dom_path));
|
|
if (vm_path) {
|
|
/* Now write the vncpassword into it. */
|
|
pass_stuff = libxl__calloc(&gc, 3, sizeof(char *));
|
|
pass_stuff[0] = "vncpasswd";
|
|
pass_stuff[1] = info->vncpasswd;
|
|
libxl__xs_writev(&gc,t,vm_path,pass_stuff);
|
|
if (!xs_transaction_end(ctx->xsh, t, 0))
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
}
|
|
}
|
|
|
|
rc = libxl__spawn_spawn(ctx, p, "device model", dm_xenstore_record_pid);
|
|
if (rc < 0)
|
|
goto out_close;
|
|
if (!rc) { /* inner child */
|
|
libxl__exec(null, logfile_w, logfile_w,
|
|
libxl__abs_path(&gc, info->device_model, libxl_libexec_path()),
|
|
args);
|
|
}
|
|
|
|
rc = 0;
|
|
|
|
out_close:
|
|
close(null);
|
|
close(logfile_w);
|
|
free(args);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_detach_device_model(libxl_ctx *ctx,
|
|
libxl_device_model_starting *starting)
|
|
{
|
|
int rc;
|
|
rc = libxl__spawn_detach(ctx, starting->for_spawn);
|
|
if (starting->for_spawn)
|
|
free(starting->for_spawn);
|
|
free(starting);
|
|
return rc;
|
|
}
|
|
|
|
|
|
int libxl_confirm_device_model_startup(libxl_ctx *ctx,
|
|
libxl_device_model_starting *starting)
|
|
{
|
|
int problem = libxl__wait_for_device_model(ctx, starting->domid, "running", NULL, NULL);
|
|
int detach;
|
|
if ( !problem )
|
|
problem = libxl__spawn_check(ctx, starting->for_spawn);
|
|
detach = libxl_detach_device_model(ctx, starting);
|
|
return problem ? problem : detach;
|
|
}
|
|
|
|
|
|
/******************************************************************************/
|
|
|
|
int libxl_device_disk_add(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front;
|
|
flexarray_t *back;
|
|
char *backend_type;
|
|
unsigned int boffset = 0;
|
|
unsigned int foffset = 0;
|
|
int devid;
|
|
libxl__device device;
|
|
int major, minor, rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto out;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
backend_type = libxl__device_disk_backend_type_of_phystype(disk->phystype);
|
|
devid = libxl__device_disk_dev_number(disk->virtpath);
|
|
if (devid==-1) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Invalid or unsupported"
|
|
" virtual disk identifier %s", disk->virtpath);
|
|
rc = ERROR_INVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
device.backend_devid = devid;
|
|
device.backend_domid = disk->backend_domid;
|
|
device.devid = devid;
|
|
device.domid = disk->domid;
|
|
device.kind = DEVICE_VBD;
|
|
|
|
switch (disk->phystype) {
|
|
case PHYSTYPE_PHY: {
|
|
|
|
libxl__device_physdisk_major_minor(disk->physpath, &major, &minor);
|
|
flexarray_set(back, boffset++, "physical-device");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%x:%x", major, minor));
|
|
|
|
flexarray_set(back, boffset++, "params");
|
|
flexarray_set(back, boffset++, disk->physpath);
|
|
|
|
device.backend_kind = DEVICE_VBD;
|
|
break;
|
|
}
|
|
case PHYSTYPE_FILE:
|
|
/* let's pretend is tap:aio for the moment */
|
|
disk->phystype = PHYSTYPE_AIO;
|
|
case PHYSTYPE_AIO:
|
|
case PHYSTYPE_QCOW:
|
|
case PHYSTYPE_QCOW2:
|
|
case PHYSTYPE_VHD:
|
|
if (libxl__blktap_enabled(&gc)) {
|
|
const char *dev = libxl__blktap_devpath(&gc,
|
|
disk->physpath, disk->phystype);
|
|
if (!dev) {
|
|
rc = ERROR_FAIL;
|
|
goto out_free;
|
|
}
|
|
flexarray_set(back, boffset++, "tapdisk-params");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%s:%s", libxl__device_disk_string_of_phystype(disk->phystype), disk->physpath));
|
|
flexarray_set(back, boffset++, "params");
|
|
flexarray_set(back, boffset++, libxl__strdup(&gc, dev));
|
|
backend_type = "phy";
|
|
libxl__device_physdisk_major_minor(dev, &major, &minor);
|
|
flexarray_set(back, boffset++, "physical-device");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%x:%x", major, minor));
|
|
device.backend_kind = DEVICE_VBD;
|
|
|
|
break;
|
|
}
|
|
flexarray_set(back, boffset++, "params");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%s:%s",
|
|
libxl__device_disk_string_of_phystype(disk->phystype), disk->physpath));
|
|
|
|
if (libxl__blktap_enabled(&gc))
|
|
device.backend_kind = DEVICE_TAP;
|
|
else
|
|
device.backend_kind = DEVICE_QDISK;
|
|
break;
|
|
|
|
default:
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "unrecognized disk physical type: %d\n", disk->phystype);
|
|
rc = ERROR_INVAL;
|
|
goto out_free;
|
|
}
|
|
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", disk->domid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "removable");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", (disk->unpluggable) ? 1 : 0));
|
|
flexarray_set(back, boffset++, "bootable");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "dev");
|
|
flexarray_set(back, boffset++, disk->virtpath);
|
|
flexarray_set(back, boffset++, "type");
|
|
flexarray_set(back, boffset++, backend_type);
|
|
flexarray_set(back, boffset++, "mode");
|
|
flexarray_set(back, boffset++, disk->readwrite ? "w" : "r");
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", disk->backend_domid));
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(front, foffset++, "virtual-device");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", devid));
|
|
flexarray_set(front, foffset++, "device-type");
|
|
flexarray_set(front, foffset++, disk->is_cdrom ? "cdrom" : "disk");
|
|
|
|
if (0 /* protocol != native*/) {
|
|
flexarray_set(front, foffset++, "protocol");
|
|
flexarray_set(front, foffset++, "x86_32-abi"); /* hardcoded ! */
|
|
}
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
|
|
rc = 0;
|
|
|
|
out_free:
|
|
flexarray_free(back);
|
|
flexarray_free(front);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_device_disk_del(libxl_ctx *ctx,
|
|
libxl_device_disk *disk, int wait)
|
|
{
|
|
libxl__device device;
|
|
int devid;
|
|
|
|
devid = libxl__device_disk_dev_number(disk->virtpath);
|
|
device.backend_domid = disk->backend_domid;
|
|
device.backend_devid = devid;
|
|
device.backend_kind =
|
|
(disk->phystype == PHYSTYPE_PHY) ? DEVICE_VBD : DEVICE_TAP;
|
|
device.domid = disk->domid;
|
|
device.devid = devid;
|
|
device.kind = DEVICE_VBD;
|
|
return libxl__device_del(ctx, &device, wait);
|
|
}
|
|
|
|
char * libxl_device_disk_local_attach(libxl_ctx *ctx, libxl_device_disk *disk)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
const char *dev = NULL;
|
|
char *ret;
|
|
int phystype = disk->phystype;
|
|
switch (phystype) {
|
|
case PHYSTYPE_PHY: {
|
|
fprintf(stderr, "attaching PHY disk %s to domain 0\n", disk->physpath);
|
|
dev = disk->physpath;
|
|
break;
|
|
}
|
|
case PHYSTYPE_FILE:
|
|
/* let's pretend is tap:aio for the moment */
|
|
phystype = PHYSTYPE_AIO;
|
|
case PHYSTYPE_AIO:
|
|
case PHYSTYPE_QCOW:
|
|
case PHYSTYPE_QCOW2:
|
|
case PHYSTYPE_VHD:
|
|
if (libxl__blktap_enabled(&gc))
|
|
dev = libxl__blktap_devpath(&gc, disk->physpath, phystype);
|
|
break;
|
|
|
|
default:
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "unrecognized disk physical type: %d\n", phystype);
|
|
break;
|
|
}
|
|
ret = strdup(dev);
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
int libxl_device_disk_local_detach(libxl_ctx *ctx, libxl_device_disk *disk)
|
|
{
|
|
/* Nothing to do for PHYSTYPE_PHY. */
|
|
|
|
/*
|
|
* For other device types assume that the blktap2 process is
|
|
* needed by the soon to be started domain and do nothing.
|
|
*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
int libxl_device_nic_add(libxl_ctx *ctx, uint32_t domid, libxl_device_nic *nic)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front;
|
|
flexarray_t *back;
|
|
unsigned int boffset = 0;
|
|
unsigned int foffset = 0;
|
|
libxl__device device;
|
|
char *dompath, **l;
|
|
unsigned int nb, rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto out;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
if (nic->devid == -1) {
|
|
if (!(dompath = libxl__xs_get_dompath(&gc, domid))) {
|
|
rc = ERROR_FAIL;
|
|
goto out_free;
|
|
}
|
|
if (!(l = libxl__xs_directory(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/device/vif", dompath), &nb))) {
|
|
nic->devid = 0;
|
|
} else {
|
|
nic->devid = strtoul(l[nb - 1], NULL, 10) + 1;
|
|
}
|
|
}
|
|
|
|
device.backend_devid = nic->devid;
|
|
device.backend_domid = nic->backend_domid;
|
|
device.backend_kind = DEVICE_VIF;
|
|
device.devid = nic->devid;
|
|
device.domid = nic->domid;
|
|
device.kind = DEVICE_VIF;
|
|
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", nic->domid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "script");
|
|
flexarray_set(back, boffset++, nic->script);
|
|
flexarray_set(back, boffset++, "mac");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
nic->mac[0], nic->mac[1], nic->mac[2],
|
|
nic->mac[3], nic->mac[4], nic->mac[5]));
|
|
flexarray_set(back, boffset++, "bridge");
|
|
flexarray_set(back, boffset++, libxl__strdup(&gc, nic->bridge));
|
|
flexarray_set(back, boffset++, "handle");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", nic->devid));
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", nic->backend_domid));
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(front, foffset++, "handle");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", nic->devid));
|
|
flexarray_set(front, foffset++, "mac");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
nic->mac[0], nic->mac[1], nic->mac[2],
|
|
nic->mac[3], nic->mac[4], nic->mac[5]));
|
|
if (0 /* protocol != native*/) {
|
|
flexarray_set(front, foffset++, "protocol");
|
|
flexarray_set(front, foffset++, "x86_32-abi"); /* hardcoded ! */
|
|
}
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
|
|
/* FIXME: wait for plug */
|
|
rc = 0;
|
|
out_free:
|
|
flexarray_free(back);
|
|
flexarray_free(front);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_device_nic_del(libxl_ctx *ctx,
|
|
libxl_device_nic *nic, int wait)
|
|
{
|
|
libxl__device device;
|
|
|
|
device.backend_devid = nic->devid;
|
|
device.backend_domid = nic->backend_domid;
|
|
device.backend_kind = DEVICE_VIF;
|
|
device.devid = nic->devid;
|
|
device.domid = nic->domid;
|
|
device.kind = DEVICE_VIF;
|
|
|
|
return libxl__device_del(ctx, &device, wait);
|
|
}
|
|
|
|
libxl_nicinfo *libxl_list_nics(libxl_ctx *ctx, uint32_t domid, unsigned int *nb)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dompath, *nic_path_fe;
|
|
char **l, **list;
|
|
char *val, *tok;
|
|
unsigned int nb_nics, i;
|
|
libxl_nicinfo *res, *nics;
|
|
|
|
dompath = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dompath)
|
|
goto err;
|
|
list = l = libxl__xs_directory(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/device/vif", dompath), &nb_nics);
|
|
if (!l)
|
|
goto err;
|
|
nics = res = calloc(nb_nics, sizeof (libxl_device_nic));
|
|
if (!res)
|
|
goto err;
|
|
for (*nb = nb_nics; nb_nics > 0; --nb_nics, ++l, ++nics) {
|
|
nic_path_fe = libxl__sprintf(&gc, "%s/device/vif/%s", dompath, *l);
|
|
|
|
nics->backend = xs_read(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/backend", nic_path_fe), NULL);
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend-id", nic_path_fe));
|
|
nics->backend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
nics->devid = strtoul(*l, NULL, 10);
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/state", nic_path_fe));
|
|
nics->state = val ? strtoul(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/mac", nic_path_fe));
|
|
for (i = 0, tok = strtok(val, ":"); tok && (i < 6);
|
|
++i, tok = strtok(NULL, ":")) {
|
|
nics->mac[i] = strtoul(tok, NULL, 16);
|
|
}
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/event-channel", nic_path_fe));
|
|
nics->evtch = val ? strtol(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/tx-ring-ref", nic_path_fe));
|
|
nics->rref_tx = val ? strtol(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/rx-ring-ref", nic_path_fe));
|
|
nics->rref_rx = val ? strtol(val, NULL, 10) : -1;
|
|
nics->frontend = xs_read(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/frontend", nics->backend), NULL);
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/frontend-id", nics->backend));
|
|
nics->frontend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
nics->script = xs_read(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/script", nics->backend), NULL);
|
|
}
|
|
|
|
libxl__free_all(&gc);
|
|
return res;
|
|
err:
|
|
libxl__free_all(&gc);
|
|
return NULL;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
int libxl_device_net2_add(libxl_ctx *ctx, uint32_t domid, libxl_device_net2 *net2)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front, *back;
|
|
unsigned int boffset = 0, foffset = 0;
|
|
libxl__device device;
|
|
char *dompath, *dom, **l;
|
|
unsigned int nb;
|
|
int rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto err;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto err_free;
|
|
}
|
|
|
|
if (!(dompath = libxl__xs_get_dompath(&gc, domid))) {
|
|
rc = ERROR_FAIL;
|
|
goto err_free;
|
|
}
|
|
dom = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/name", dompath));
|
|
|
|
if (net2->devid == -1) {
|
|
if (!(l = libxl__xs_directory(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/device/vif2", dompath), &nb))) {
|
|
net2->devid = 0;
|
|
} else {
|
|
net2->devid = strtoul(l[nb - 1], NULL, 10) + 1;
|
|
}
|
|
}
|
|
|
|
device.backend_devid = net2->devid;
|
|
device.backend_domid = net2->backend_domid;
|
|
device.backend_kind = DEVICE_VIF2;
|
|
device.devid = net2->devid;
|
|
device.domid = net2->domid;
|
|
device.kind = DEVICE_VIF2;
|
|
|
|
flexarray_set(back, boffset++, "domain");
|
|
flexarray_set(back, boffset++, dom);
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", net2->domid));
|
|
|
|
flexarray_set(back, boffset++, "local-trusted");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", net2->back_trusted));
|
|
flexarray_set(back, boffset++, "mac");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
net2->back_mac[0], net2->back_mac[1],
|
|
net2->back_mac[2], net2->back_mac[3],
|
|
net2->back_mac[4], net2->back_mac[5]));
|
|
|
|
flexarray_set(back, boffset++, "remote-trusted");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", net2->trusted));
|
|
flexarray_set(back, boffset++, "remote-mac");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
net2->front_mac[0], net2->front_mac[1],
|
|
net2->front_mac[2], net2->front_mac[3],
|
|
net2->front_mac[4], net2->front_mac[5]));
|
|
|
|
flexarray_set(back, boffset++, "max-bypasses");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", net2->max_bypasses));
|
|
flexarray_set(back, boffset++, "filter-mac");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", !!(net2->filter_mac)));
|
|
flexarray_set(back, boffset++, "handle");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", net2->devid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, "1");
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", net2->backend_domid));
|
|
|
|
flexarray_set(front, foffset++, "local-trusted");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", net2->trusted));
|
|
flexarray_set(front, foffset++, "mac");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
net2->front_mac[0], net2->front_mac[1],
|
|
net2->front_mac[2], net2->front_mac[3],
|
|
net2->front_mac[4], net2->front_mac[5]));
|
|
|
|
flexarray_set(front, foffset++, "remote-trusted");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", net2->back_trusted));
|
|
flexarray_set(front, foffset++, "remote-mac");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
net2->back_mac[0], net2->back_mac[1],
|
|
net2->back_mac[2], net2->back_mac[3],
|
|
net2->back_mac[4], net2->back_mac[5]));
|
|
|
|
flexarray_set(front, foffset++, "filter-mac");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", !!(net2->filter_mac)));
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, "1");
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
|
|
/* FIXME: wait for plug */
|
|
rc = 0;
|
|
err_free:
|
|
flexarray_free(back);
|
|
flexarray_free(front);
|
|
err:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
libxl_net2info *libxl_device_net2_list(libxl_ctx *ctx, uint32_t domid, unsigned int *nb)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dompath, *net2_path_fe;
|
|
char **l;
|
|
char *val, *tok;
|
|
unsigned int nb_net2s, i;
|
|
libxl_net2info *res, *net2s;
|
|
|
|
dompath = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dompath)
|
|
goto err;
|
|
l = libxl__xs_directory(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/device/vif2", dompath), &nb_net2s);
|
|
if (!l)
|
|
goto err;
|
|
res = calloc(nb_net2s, sizeof (libxl_net2info));
|
|
if (!res)
|
|
goto err;
|
|
net2s = res;
|
|
for (*nb = nb_net2s; nb_net2s > 0; --nb_net2s, ++l, ++net2s) {
|
|
net2_path_fe = libxl__sprintf(&gc, "%s/device/vif2/%s", dompath, *l);
|
|
|
|
net2s->backend = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/backend", net2_path_fe));
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend-id", net2_path_fe));
|
|
net2s->backend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
net2s->devid = strtoul(*l, NULL, 10);
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/state", net2_path_fe));
|
|
net2s->state = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/mac", net2_path_fe));
|
|
for (i = 0, tok = strtok(val, ":"); tok && (i < 6);
|
|
++i, tok = strtok(NULL, ":")) {
|
|
net2s->mac[i] = strtoul(tok, NULL, 16);
|
|
}
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/remote-trusted", net2_path_fe));
|
|
net2s->trusted = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/remote-mac", net2_path_fe));
|
|
for (i = 0, tok = strtok(val, ":"); tok && (i < 6);
|
|
++i, tok = strtok(NULL, ":")) {
|
|
net2s->back_mac[i] = strtoul(tok, NULL, 16);
|
|
}
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/filter-mac", net2_path_fe));
|
|
net2s->filter_mac = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
net2s->frontend = libxl__xs_read(&gc, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/frontend", net2s->backend));
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/frontend-id", net2s->backend));
|
|
net2s->frontend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
}
|
|
|
|
libxl__free_all(&gc);
|
|
return res;
|
|
err:
|
|
libxl__free_all(&gc);
|
|
return NULL;
|
|
}
|
|
|
|
int libxl_device_net2_del(libxl_ctx *ctx, libxl_device_net2 *net2, int wait)
|
|
{
|
|
libxl__device device;
|
|
|
|
device.backend_devid = net2->devid;
|
|
device.backend_domid = net2->backend_domid;
|
|
device.backend_kind = DEVICE_VIF2;
|
|
device.devid = net2->devid;
|
|
device.domid = net2->domid;
|
|
device.kind = DEVICE_VIF2;
|
|
|
|
return libxl__device_del(ctx, &device, wait);
|
|
}
|
|
|
|
|
|
/******************************************************************************/
|
|
int libxl_device_console_add(libxl_ctx *ctx, uint32_t domid, libxl_device_console *console)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front;
|
|
flexarray_t *back;
|
|
unsigned int boffset = 0;
|
|
unsigned int foffset = 0;
|
|
libxl__device device;
|
|
int rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto out;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
device.backend_devid = console->devid;
|
|
device.backend_domid = console->backend_domid;
|
|
device.backend_kind = DEVICE_CONSOLE;
|
|
device.devid = console->devid;
|
|
device.domid = console->domid;
|
|
device.kind = DEVICE_CONSOLE;
|
|
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", console->domid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "domain");
|
|
flexarray_set(back, boffset++, libxl__domid_to_name(&gc, domid));
|
|
flexarray_set(back, boffset++, "protocol");
|
|
flexarray_set(back, boffset++, LIBXL_XENCONSOLE_PROTOCOL);
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", console->backend_domid));
|
|
flexarray_set(front, foffset++, "limit");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", LIBXL_XENCONSOLE_LIMIT));
|
|
flexarray_set(front, foffset++, "type");
|
|
if (console->consback == LIBXL_CONSBACK_XENCONSOLED)
|
|
flexarray_set(front, foffset++, "xenconsoled");
|
|
else
|
|
flexarray_set(front, foffset++, "ioemu");
|
|
flexarray_set(front, foffset++, "output");
|
|
flexarray_set(front, foffset++, console->output);
|
|
|
|
if (device.devid == 0) {
|
|
if (console->build_state == NULL) {
|
|
rc = ERROR_INVAL;
|
|
goto out_free;
|
|
}
|
|
flexarray_set(front, foffset++, "port");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%"PRIu32, console->build_state->console_port));
|
|
flexarray_set(front, foffset++, "ring-ref");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%lu", console->build_state->console_mfn));
|
|
} else {
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(front, foffset++, "protocol");
|
|
flexarray_set(front, foffset++, LIBXL_XENCONSOLE_PROTOCOL);
|
|
}
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
rc = 0;
|
|
out_free:
|
|
flexarray_free(back);
|
|
flexarray_free(front);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
int libxl_device_vkb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vkb *vkb)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front;
|
|
flexarray_t *back;
|
|
unsigned int boffset = 0;
|
|
unsigned int foffset = 0;
|
|
libxl__device device;
|
|
int rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto out;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
device.backend_devid = vkb->devid;
|
|
device.backend_domid = vkb->backend_domid;
|
|
device.backend_kind = DEVICE_VKBD;
|
|
device.devid = vkb->devid;
|
|
device.domid = vkb->domid;
|
|
device.kind = DEVICE_VKBD;
|
|
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vkb->domid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "domain");
|
|
flexarray_set(back, boffset++, libxl__domid_to_name(&gc, domid));
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", vkb->backend_domid));
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", 1));
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
rc = 0;
|
|
out_free:
|
|
flexarray_free(back);
|
|
flexarray_free(front);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_device_vkb_clean_shutdown(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
return ERROR_NI;
|
|
}
|
|
|
|
int libxl_device_vkb_hard_shutdown(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
return ERROR_NI;
|
|
}
|
|
|
|
libxl_device_disk *libxl_device_disk_list(libxl_ctx *ctx, uint32_t domid, int *num)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *be_path_tap, *be_path_vbd;
|
|
libxl_device_disk *dend, *disks, *ret = NULL;
|
|
char **b, **l = NULL;
|
|
unsigned int numl, len;
|
|
char *type;
|
|
|
|
be_path_vbd = libxl__sprintf(&gc, "%s/backend/vbd/%d", libxl__xs_get_dompath(&gc, 0), domid);
|
|
be_path_tap = libxl__sprintf(&gc, "%s/backend/tap/%d", libxl__xs_get_dompath(&gc, 0), domid);
|
|
|
|
b = l = libxl__xs_directory(&gc, XBT_NULL, be_path_vbd, &numl);
|
|
if (l) {
|
|
ret = realloc(ret, sizeof(libxl_device_disk) * numl);
|
|
disks = ret;
|
|
*num = numl;
|
|
dend = ret + *num;
|
|
for (; disks < dend; ++disks, ++l) {
|
|
disks->backend_domid = 0;
|
|
disks->domid = domid;
|
|
disks->physpath = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "%s/%s/params", be_path_vbd, *l), &len);
|
|
libxl_string_to_phystype(ctx, libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/type", be_path_vbd, *l)), &(disks->phystype));
|
|
disks->virtpath = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "%s/%s/dev", be_path_vbd, *l), &len);
|
|
disks->unpluggable = atoi(libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/removable", be_path_vbd, *l)));
|
|
if (!strcmp(libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/mode", be_path_vbd, *l)), "w"))
|
|
disks->readwrite = 1;
|
|
else
|
|
disks->readwrite = 0;
|
|
type = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/device-type", libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/frontend", be_path_vbd, *l))));
|
|
disks->is_cdrom = !strcmp(type, "cdrom");
|
|
}
|
|
}
|
|
b = l = libxl__xs_directory(&gc, XBT_NULL, be_path_tap, &numl);
|
|
if (l) {
|
|
ret = realloc(ret, sizeof(libxl_device_disk) * (*num + numl));
|
|
disks = ret + *num;
|
|
*num += numl;
|
|
for (dend = ret + *num; disks < dend; ++disks, ++l) {
|
|
disks->backend_domid = 0;
|
|
disks->domid = domid;
|
|
disks->physpath = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "%s/%s/params", be_path_tap, *l), &len);
|
|
libxl_string_to_phystype(ctx, libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/type", be_path_tap, *l)), &(disks->phystype));
|
|
disks->virtpath = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "%s/%s/dev", be_path_tap, *l), &len);
|
|
disks->unpluggable = atoi(libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/removable", be_path_tap, *l)));
|
|
if (!strcmp(libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/mode", be_path_tap, *l)), "w"))
|
|
disks->readwrite = 1;
|
|
else
|
|
disks->readwrite = 0;
|
|
type = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/device-type", libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/%s/frontend", be_path_tap, *l))));
|
|
disks->is_cdrom = !strcmp(type, "cdrom");
|
|
}
|
|
}
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
int libxl_device_disk_getinfo(libxl_ctx *ctx, uint32_t domid,
|
|
libxl_device_disk *disk, libxl_diskinfo *diskinfo)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dompath, *diskpath;
|
|
char *val;
|
|
|
|
dompath = libxl__xs_get_dompath(&gc, domid);
|
|
diskinfo->devid = libxl__device_disk_dev_number(disk->virtpath);
|
|
|
|
/* tap devices entries in xenstore are written as vbd devices. */
|
|
diskpath = libxl__sprintf(&gc, "%s/device/vbd/%d", dompath, diskinfo->devid);
|
|
diskinfo->backend = xs_read(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/backend", diskpath), NULL);
|
|
if (!diskinfo->backend) {
|
|
libxl__free_all(&gc);
|
|
return ERROR_FAIL;
|
|
}
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend-id", diskpath));
|
|
diskinfo->backend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/state", diskpath));
|
|
diskinfo->state = val ? strtoul(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/event-channel", diskpath));
|
|
diskinfo->evtch = val ? strtoul(val, NULL, 10) : -1;
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/ring-ref", diskpath));
|
|
diskinfo->rref = val ? strtoul(val, NULL, 10) : -1;
|
|
diskinfo->frontend = xs_read(ctx->xsh, XBT_NULL,
|
|
libxl__sprintf(&gc, "%s/frontend", diskinfo->backend), NULL);
|
|
val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/frontend-id", diskinfo->backend));
|
|
diskinfo->frontend_id = val ? strtoul(val, NULL, 10) : -1;
|
|
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, libxl_device_disk *disk)
|
|
{
|
|
int num, i;
|
|
uint32_t stubdomid;
|
|
libxl_device_disk *disks;
|
|
int ret = ERROR_FAIL;
|
|
|
|
if (!disk->physpath) {
|
|
disk->physpath = "";
|
|
disk->phystype = PHYSTYPE_PHY;
|
|
}
|
|
disks = libxl_device_disk_list(ctx, domid, &num);
|
|
for (i = 0; i < num; i++) {
|
|
if (disks[i].is_cdrom && !strcmp(disk->virtpath, disks[i].virtpath))
|
|
/* found */
|
|
break;
|
|
}
|
|
if (i == num) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR, "Virtual device not found");
|
|
goto out;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
libxl_device_disk_del(ctx, disks + i, 1);
|
|
libxl_device_disk_add(ctx, domid, disk);
|
|
stubdomid = libxl_get_stubdom_id(ctx, domid);
|
|
if (stubdomid) {
|
|
disks[i].domid = stubdomid;
|
|
libxl_device_disk_del(ctx, disks + i, 1);
|
|
disk->domid = stubdomid;
|
|
libxl_device_disk_add(ctx, stubdomid, disk);
|
|
disk->domid = domid;
|
|
}
|
|
out:
|
|
for (i = 0; i < num; i++)
|
|
libxl_device_disk_destroy(&disks[i]);
|
|
free(disks);
|
|
return ret;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
static int libxl_build_xenpv_qemu_args(libxl__gc *gc,
|
|
uint32_t domid,
|
|
libxl_device_vfb *vfb,
|
|
libxl_device_model_info *info)
|
|
{
|
|
libxl_ctx *ctx = libxl__gc_owner(gc);
|
|
memset(info, 0x00, sizeof(libxl_device_model_info));
|
|
|
|
if (vfb != NULL) {
|
|
info->vnc = vfb->vnc;
|
|
if (vfb->vnclisten)
|
|
info->vnclisten = libxl__strdup(gc, vfb->vnclisten);
|
|
info->vncdisplay = vfb->vncdisplay;
|
|
info->vncunused = vfb->vncunused;
|
|
if (vfb->vncpasswd)
|
|
info->vncpasswd = vfb->vncpasswd;
|
|
if (vfb->keymap)
|
|
info->keymap = libxl__strdup(gc, vfb->keymap);
|
|
info->sdl = vfb->sdl;
|
|
info->opengl = vfb->opengl;
|
|
} else
|
|
info->nographic = 1;
|
|
info->domid = domid;
|
|
info->dom_name = libxl_domid_to_name(ctx, domid);
|
|
info->device_model = libxl__abs_path(gc, "qemu-dm", libxl_libexec_path());
|
|
info->type = XENPV;
|
|
return 0;
|
|
}
|
|
|
|
int libxl_create_xenpv_qemu(libxl_ctx *ctx, uint32_t domid, libxl_device_vfb *vfb,
|
|
libxl_device_model_starting **starting_r)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
libxl_device_model_info info;
|
|
|
|
libxl_build_xenpv_qemu_args(&gc, domid, vfb, &info);
|
|
libxl_create_device_model(ctx, &info, NULL, 0, NULL, 0, starting_r);
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_device_vfb_add(libxl_ctx *ctx, uint32_t domid, libxl_device_vfb *vfb)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
flexarray_t *front;
|
|
flexarray_t *back;
|
|
unsigned int boffset = 0;
|
|
unsigned int foffset = 0;
|
|
libxl__device device;
|
|
int rc;
|
|
|
|
front = flexarray_make(16, 1);
|
|
if (!front) {
|
|
rc = ERROR_NOMEM;
|
|
goto out;
|
|
}
|
|
back = flexarray_make(16, 1);
|
|
if (!back) {
|
|
rc = ERROR_NOMEM;
|
|
goto out_free;
|
|
}
|
|
|
|
device.backend_devid = vfb->devid;
|
|
device.backend_domid = vfb->backend_domid;
|
|
device.backend_kind = DEVICE_VFB;
|
|
device.devid = vfb->devid;
|
|
device.domid = vfb->domid;
|
|
device.kind = DEVICE_VFB;
|
|
|
|
flexarray_set(back, boffset++, "frontend-id");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->domid));
|
|
flexarray_set(back, boffset++, "online");
|
|
flexarray_set(back, boffset++, "1");
|
|
flexarray_set(back, boffset++, "state");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", 1));
|
|
flexarray_set(back, boffset++, "domain");
|
|
flexarray_set(back, boffset++, libxl__domid_to_name(&gc, domid));
|
|
flexarray_set(back, boffset++, "vnc");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->vnc));
|
|
flexarray_set(back, boffset++, "vnclisten");
|
|
flexarray_set(back, boffset++, vfb->vnclisten);
|
|
flexarray_set(back, boffset++, "vncpasswd");
|
|
flexarray_set(back, boffset++, vfb->vncpasswd);
|
|
flexarray_set(back, boffset++, "vncdisplay");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->vncdisplay));
|
|
flexarray_set(back, boffset++, "vncunused");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->vncunused));
|
|
flexarray_set(back, boffset++, "sdl");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->sdl));
|
|
flexarray_set(back, boffset++, "opengl");
|
|
flexarray_set(back, boffset++, libxl__sprintf(&gc, "%d", vfb->opengl));
|
|
if (vfb->xauthority) {
|
|
flexarray_set(back, boffset++, "xauthority");
|
|
flexarray_set(back, boffset++, vfb->xauthority);
|
|
}
|
|
if (vfb->display) {
|
|
flexarray_set(back, boffset++, "display");
|
|
flexarray_set(back, boffset++, vfb->display);
|
|
}
|
|
|
|
flexarray_set(front, foffset++, "backend-id");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", vfb->backend_domid));
|
|
flexarray_set(front, foffset++, "state");
|
|
flexarray_set(front, foffset++, libxl__sprintf(&gc, "%d", 1));
|
|
|
|
libxl__device_generic_add(ctx, &device,
|
|
libxl__xs_kvs_of_flexarray(&gc, back, boffset),
|
|
libxl__xs_kvs_of_flexarray(&gc, front, foffset));
|
|
rc = 0;
|
|
out_free:
|
|
flexarray_free(front);
|
|
flexarray_free(back);
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_device_vfb_clean_shutdown(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
return ERROR_NI;
|
|
}
|
|
|
|
int libxl_device_vfb_hard_shutdown(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
return ERROR_NI;
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
int libxl_domain_setmaxmem(libxl_ctx *ctx, uint32_t domid, uint32_t max_memkb)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *mem, *endptr;
|
|
uint32_t memorykb;
|
|
char *dompath = libxl__xs_get_dompath(&gc, domid);
|
|
int rc = 1;
|
|
|
|
mem = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/memory/target", dompath));
|
|
if (!mem) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "cannot get memory info from %s/memory/target\n", dompath);
|
|
goto out;
|
|
}
|
|
memorykb = strtoul(mem, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "invalid memory %s from %s/memory/target\n", mem, dompath);
|
|
goto out;
|
|
}
|
|
|
|
if (max_memkb < memorykb) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "memory_static_max must be greater than or or equal to memory_dynamic_max\n");
|
|
goto out;
|
|
}
|
|
|
|
rc = 0;
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
static int libxl__fill_dom0_memory_info(libxl__gc *gc, uint32_t *target_memkb)
|
|
{
|
|
int rc;
|
|
libxl_dominfo info;
|
|
libxl_physinfo physinfo;
|
|
char *target = NULL, *endptr = NULL;
|
|
char *target_path = "/local/domain/0/memory/target";
|
|
char *max_path = "/local/domain/0/memory/static-max";
|
|
char *free_mem_slack_path = "/local/domain/0/memory/freemem-slack";
|
|
xs_transaction_t t;
|
|
libxl_ctx *ctx = libxl__gc_owner(gc);
|
|
uint32_t free_mem_slack = 0;
|
|
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
target = libxl__xs_read(gc, t, target_path);
|
|
if (target) {
|
|
*target_memkb = strtoul(target, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"invalid memory target %s from %s\n", target, target_path);
|
|
rc = ERROR_FAIL;
|
|
goto out;
|
|
}
|
|
rc = 0;
|
|
goto out;
|
|
}
|
|
|
|
rc = libxl_domain_info(ctx, &info, 0);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
rc = libxl_get_physinfo(ctx, &physinfo);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
libxl__xs_write(gc, t, target_path, "%"PRIu32,
|
|
(uint32_t) info.current_memkb);
|
|
libxl__xs_write(gc, t, max_path, "%"PRIu32,
|
|
(uint32_t) info.max_memkb);
|
|
|
|
free_mem_slack = (uint32_t) (PAGE_TO_MEMKB(physinfo.total_pages) -
|
|
info.current_memkb);
|
|
/* From empirical measurements the free_mem_slack shouldn't be more
|
|
* than 15% of the total memory present on the system. */
|
|
if (free_mem_slack > PAGE_TO_MEMKB(physinfo.total_pages) * 0.15)
|
|
free_mem_slack = PAGE_TO_MEMKB(physinfo.total_pages) * 0.15;
|
|
libxl__xs_write(gc, t, free_mem_slack_path, "%"PRIu32, free_mem_slack);
|
|
|
|
*target_memkb = (uint32_t) info.current_memkb;
|
|
rc = 0;
|
|
|
|
out:
|
|
if (!xs_transaction_end(ctx->xsh, t, 0))
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
|
|
|
|
return rc;
|
|
}
|
|
|
|
/* returns how much memory should be left free in the system */
|
|
static int libxl__get_free_memory_slack(libxl__gc *gc, uint32_t *free_mem_slack)
|
|
{
|
|
int rc;
|
|
char *free_mem_slack_path = "/local/domain/0/memory/freemem-slack";
|
|
char *free_mem_slack_s, *endptr;
|
|
uint32_t target_memkb;
|
|
|
|
retry:
|
|
free_mem_slack_s = libxl__xs_read(gc, XBT_NULL, free_mem_slack_path);
|
|
if (!free_mem_slack_s) {
|
|
rc = libxl__fill_dom0_memory_info(gc, &target_memkb);
|
|
if (rc < 0)
|
|
return rc;
|
|
goto retry;
|
|
} else {
|
|
*free_mem_slack = strtoul(free_mem_slack_s, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(gc->owner, LIBXL__LOG_ERROR,
|
|
"invalid free_mem_slack %s from %s\n",
|
|
free_mem_slack_s, free_mem_slack_path);
|
|
return ERROR_FAIL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_set_memory_target(libxl_ctx *ctx, uint32_t domid,
|
|
int32_t target_memkb, int relative, int enforce)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc = 1, abort = 0;
|
|
uint32_t memorykb = 0, videoram = 0;
|
|
uint32_t current_target_memkb = 0, new_target_memkb = 0;
|
|
char *memmax, *endptr, *videoram_s = NULL, *target = NULL;
|
|
char *dompath = libxl__xs_get_dompath(&gc, domid);
|
|
xc_domaininfo_t info;
|
|
libxl_dominfo ptr;
|
|
char *uuid;
|
|
xs_transaction_t t;
|
|
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
target = libxl__xs_read(&gc, t, libxl__sprintf(&gc,
|
|
"%s/memory/target", dompath));
|
|
if (!target && !domid) {
|
|
xs_transaction_end(ctx->xsh, t, 1);
|
|
rc = libxl__fill_dom0_memory_info(&gc, ¤t_target_memkb);
|
|
if (rc < 0) {
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
goto retry_transaction;
|
|
} else if (!target) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"cannot get target memory info from %s/memory/target\n",
|
|
dompath);
|
|
abort = 1;
|
|
goto out;
|
|
} else {
|
|
current_target_memkb = strtoul(target, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"invalid memory target %s from %s/memory/target\n",
|
|
target, dompath);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
memmax = libxl__xs_read(&gc, t, libxl__sprintf(&gc,
|
|
"%s/memory/static-max", dompath));
|
|
if (!memmax) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"cannot get memory info from %s/memory/static-max\n",
|
|
dompath);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
memorykb = strtoul(memmax, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"invalid max memory %s from %s/memory/static-max\n",
|
|
memmax, dompath);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (relative)
|
|
new_target_memkb = current_target_memkb + target_memkb;
|
|
else
|
|
new_target_memkb = target_memkb;
|
|
if (new_target_memkb > memorykb) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
|
|
"memory_dynamic_max must be less than or equal to"
|
|
" memory_static_max\n");
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
|
|
if (!domid && new_target_memkb < LIBXL_MIN_DOM0_MEM) {
|
|
LIBXL__LOG(ctx, LIBXL__LOG_ERROR,
|
|
"new target %d for dom0 is below the minimum threshold\n",
|
|
new_target_memkb);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
videoram_s = libxl__xs_read(&gc, t, libxl__sprintf(&gc,
|
|
"%s/memory/videoram", dompath));
|
|
videoram = videoram_s ? atoi(videoram_s) : 0;
|
|
|
|
if (enforce) {
|
|
memorykb = new_target_memkb;
|
|
rc = xc_domain_setmaxmem(ctx->xch, domid, memorykb +
|
|
LIBXL_MAXMEM_CONSTANT);
|
|
if (rc != 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"xc_domain_setmaxmem domid=%d memkb=%d failed "
|
|
"rc=%d\n", domid, memorykb + LIBXL_MAXMEM_CONSTANT, rc);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
new_target_memkb -= videoram;
|
|
rc = xc_domain_set_pod_target(ctx->xch, domid,
|
|
new_target_memkb / 4, NULL, NULL, NULL);
|
|
if (rc != 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"xc_domain_set_pod_target domid=%d, memkb=%d "
|
|
"failed rc=%d\n", domid, new_target_memkb / 4,
|
|
rc);
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
|
|
libxl__xs_write(&gc, t, libxl__sprintf(&gc, "%s/memory/target",
|
|
dompath), "%"PRIu32, new_target_memkb);
|
|
rc = xc_domain_getinfolist(ctx->xch, domid, 1, &info);
|
|
if (rc != 1 || info.domain != domid) {
|
|
abort = 1;
|
|
goto out;
|
|
}
|
|
xcinfo2xlinfo(&info, &ptr);
|
|
uuid = libxl__uuid2string(&gc, ptr.uuid);
|
|
libxl__xs_write(&gc, t, libxl__sprintf(&gc, "/vm/%s/memory", uuid),
|
|
"%"PRIu32, new_target_memkb / 1024);
|
|
|
|
out:
|
|
if (!xs_transaction_end(ctx->xsh, t, abort) && !abort)
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_get_memory_target(libxl_ctx *ctx, uint32_t domid, uint32_t *out_target)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc = 1;
|
|
char *target = NULL, *endptr = NULL;
|
|
char *dompath = libxl__xs_get_dompath(&gc, domid);
|
|
uint32_t target_memkb;
|
|
|
|
target = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc,
|
|
"%s/memory/target", dompath));
|
|
if (!target && !domid) {
|
|
rc = libxl__fill_dom0_memory_info(&gc, &target_memkb);
|
|
if (rc < 0)
|
|
goto out;
|
|
} else if (!target) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"cannot get target memory info from %s/memory/target\n",
|
|
dompath);
|
|
goto out;
|
|
} else {
|
|
target_memkb = strtoul(target, &endptr, 10);
|
|
if (*endptr != '\0') {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR,
|
|
"invalid memory target %s from %s/memory/target\n",
|
|
target, dompath);
|
|
goto out;
|
|
}
|
|
}
|
|
*out_target = target_memkb;
|
|
rc = 0;
|
|
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_domain_need_memory(libxl_ctx *ctx, libxl_domain_build_info *b_info,
|
|
libxl_device_model_info *dm_info, uint32_t *need_memkb)
|
|
{
|
|
*need_memkb = b_info->target_memkb;
|
|
if (b_info->hvm) {
|
|
*need_memkb += b_info->shadow_memkb + LIBXL_HVM_EXTRA_MEMORY;
|
|
if (strstr(dm_info->device_model, "stubdom-dm"))
|
|
*need_memkb += 32 * 1024;
|
|
} else
|
|
*need_memkb += b_info->shadow_memkb + LIBXL_PV_EXTRA_MEMORY;
|
|
if (*need_memkb % (2 * 1024))
|
|
*need_memkb += (2 * 1024) - (*need_memkb % (2 * 1024));
|
|
return 0;
|
|
}
|
|
|
|
int libxl_get_free_memory(libxl_ctx *ctx, uint32_t *memkb)
|
|
{
|
|
int rc = 0;
|
|
libxl_physinfo info;
|
|
uint32_t freemem_slack;
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
|
|
rc = libxl_get_physinfo(ctx, &info);
|
|
if (rc < 0)
|
|
goto out;
|
|
rc = libxl__get_free_memory_slack(&gc, &freemem_slack);
|
|
if (rc < 0)
|
|
goto out;
|
|
|
|
if ((info.free_pages + info.scrub_pages) * 4 > freemem_slack)
|
|
*memkb = (info.free_pages + info.scrub_pages) * 4 - freemem_slack;
|
|
else
|
|
*memkb = 0;
|
|
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_wait_for_free_memory(libxl_ctx *ctx, uint32_t domid, uint32_t
|
|
memory_kb, int wait_secs)
|
|
{
|
|
int rc = 0;
|
|
libxl_physinfo info;
|
|
uint32_t freemem_slack;
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
|
|
rc = libxl__get_free_memory_slack(&gc, &freemem_slack);
|
|
if (rc < 0)
|
|
goto out;
|
|
while (wait_secs > 0) {
|
|
rc = libxl_get_physinfo(ctx, &info);
|
|
if (rc < 0)
|
|
goto out;
|
|
if (info.free_pages * 4 - freemem_slack >= memory_kb) {
|
|
rc = 0;
|
|
goto out;
|
|
}
|
|
wait_secs--;
|
|
sleep(1);
|
|
}
|
|
rc = ERROR_NOMEM;
|
|
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
int libxl_wait_for_memory_target(libxl_ctx *ctx, uint32_t domid, int wait_secs)
|
|
{
|
|
int rc = 0;
|
|
uint32_t target_memkb = 0;
|
|
libxl_dominfo info;
|
|
|
|
do {
|
|
wait_secs--;
|
|
sleep(1);
|
|
|
|
rc = libxl_get_memory_target(ctx, domid, &target_memkb);
|
|
if (rc < 0)
|
|
goto out;
|
|
|
|
rc = libxl_domain_info(ctx, &info, domid);
|
|
if (rc < 0)
|
|
return rc;
|
|
} while (wait_secs > 0 && info.current_memkb > target_memkb);
|
|
|
|
if (info.current_memkb <= target_memkb)
|
|
rc = 0;
|
|
else
|
|
rc = ERROR_FAIL;
|
|
|
|
out:
|
|
return 0;
|
|
}
|
|
|
|
int libxl_button_press(libxl_ctx *ctx, uint32_t domid, libxl_button button)
|
|
{
|
|
int rc = -1;
|
|
|
|
switch (button) {
|
|
case POWER_BUTTON:
|
|
rc = xc_domain_send_trigger(ctx->xch, domid, XEN_DOMCTL_SENDTRIGGER_POWER, 0);
|
|
break;
|
|
case SLEEP_BUTTON:
|
|
rc = xc_domain_send_trigger(ctx->xch, domid, XEN_DOMCTL_SENDTRIGGER_SLEEP, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_get_physinfo(libxl_ctx *ctx, libxl_physinfo *physinfo)
|
|
{
|
|
xc_physinfo_t xcphysinfo = { 0 };
|
|
int rc;
|
|
|
|
rc = xc_physinfo(ctx->xch, &xcphysinfo);
|
|
if (rc != 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting physinfo");
|
|
return ERROR_FAIL;
|
|
}
|
|
physinfo->threads_per_core = xcphysinfo.threads_per_core;
|
|
physinfo->cores_per_socket = xcphysinfo.cores_per_socket;
|
|
physinfo->max_cpu_id = xcphysinfo.max_cpu_id;
|
|
physinfo->nr_cpus = xcphysinfo.nr_cpus;
|
|
physinfo->cpu_khz = xcphysinfo.cpu_khz;
|
|
physinfo->total_pages = xcphysinfo.total_pages;
|
|
physinfo->free_pages = xcphysinfo.free_pages;
|
|
physinfo->scrub_pages = xcphysinfo.scrub_pages;
|
|
physinfo->nr_nodes = xcphysinfo.nr_nodes;
|
|
memcpy(physinfo->hw_cap,xcphysinfo.hw_cap, sizeof(physinfo->hw_cap));
|
|
physinfo->phys_cap = xcphysinfo.capabilities;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const libxl_version_info* libxl_get_version_info(libxl_ctx *ctx)
|
|
{
|
|
union {
|
|
xen_extraversion_t xen_extra;
|
|
xen_compile_info_t xen_cc;
|
|
xen_changeset_info_t xen_chgset;
|
|
xen_capabilities_info_t xen_caps;
|
|
xen_platform_parameters_t p_parms;
|
|
xen_commandline_t xen_commandline;
|
|
} u;
|
|
long xen_version;
|
|
libxl_version_info *info = &ctx->version_info;
|
|
|
|
if (info->xen_version_extra != NULL)
|
|
return info;
|
|
|
|
xen_version = xc_version(ctx->xch, XENVER_version, NULL);
|
|
info->xen_version_major = xen_version >> 16;
|
|
info->xen_version_minor = xen_version & 0xFF;
|
|
|
|
xc_version(ctx->xch, XENVER_extraversion, &u.xen_extra);
|
|
info->xen_version_extra = strdup(u.xen_extra);
|
|
|
|
xc_version(ctx->xch, XENVER_compile_info, &u.xen_cc);
|
|
info->compiler = strdup(u.xen_cc.compiler);
|
|
info->compile_by = strdup(u.xen_cc.compile_by);
|
|
info->compile_domain = strdup(u.xen_cc.compile_domain);
|
|
info->compile_date = strdup(u.xen_cc.compile_date);
|
|
|
|
xc_version(ctx->xch, XENVER_capabilities, &u.xen_caps);
|
|
info->capabilities = strdup(u.xen_caps);
|
|
|
|
xc_version(ctx->xch, XENVER_changeset, &u.xen_chgset);
|
|
info->changeset = strdup(u.xen_chgset);
|
|
|
|
xc_version(ctx->xch, XENVER_platform_parameters, &u.p_parms);
|
|
info->virt_start = u.p_parms.virt_start;
|
|
|
|
info->pagesize = xc_version(ctx->xch, XENVER_pagesize, NULL);
|
|
|
|
xc_version(ctx->xch, XENVER_commandline, &u.xen_commandline);
|
|
info->commandline = strdup(u.xen_commandline);
|
|
|
|
return info;
|
|
}
|
|
|
|
libxl_vcpuinfo *libxl_list_vcpu(libxl_ctx *ctx, uint32_t domid,
|
|
int *nb_vcpu, int *nrcpus)
|
|
{
|
|
libxl_vcpuinfo *ptr, *ret;
|
|
xc_domaininfo_t domaininfo;
|
|
xc_vcpuinfo_t vcpuinfo;
|
|
|
|
if (xc_domain_getinfolist(ctx->xch, domid, 1, &domaininfo) != 1) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting infolist");
|
|
return NULL;
|
|
}
|
|
*nrcpus = libxl_get_max_cpus(ctx);
|
|
ret = ptr = calloc(domaininfo.max_vcpu_id + 1, sizeof (libxl_vcpuinfo));
|
|
if (!ptr) {
|
|
return NULL;
|
|
}
|
|
|
|
for (*nb_vcpu = 0; *nb_vcpu <= domaininfo.max_vcpu_id; ++*nb_vcpu, ++ptr) {
|
|
if (libxl_cpumap_alloc(ctx, &ptr->cpumap)) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "allocating cpumap");
|
|
return NULL;
|
|
}
|
|
if (xc_vcpu_getinfo(ctx->xch, domid, *nb_vcpu, &vcpuinfo) == -1) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting vcpu info");
|
|
return NULL;
|
|
}
|
|
if (xc_vcpu_getaffinity(ctx->xch, domid, *nb_vcpu, ptr->cpumap.map) == -1) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting vcpu affinity");
|
|
return NULL;
|
|
}
|
|
ptr->vcpuid = *nb_vcpu;
|
|
ptr->cpu = vcpuinfo.cpu;
|
|
ptr->online = !!vcpuinfo.online;
|
|
ptr->blocked = !!vcpuinfo.blocked;
|
|
ptr->running = !!vcpuinfo.running;
|
|
ptr->vcpu_time = vcpuinfo.cpu_time;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int libxl_set_vcpuaffinity(libxl_ctx *ctx, uint32_t domid, uint32_t vcpuid,
|
|
libxl_cpumap *cpumap)
|
|
{
|
|
if (xc_vcpu_setaffinity(ctx->xch, domid, vcpuid, cpumap->map)) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "setting vcpu affinity");
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_set_vcpuonline(libxl_ctx *ctx, uint32_t domid, uint32_t bitmask)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
libxl_dominfo info;
|
|
char *dompath;
|
|
xs_transaction_t t;
|
|
int i, rc = ERROR_FAIL;
|
|
|
|
if (libxl_domain_info(ctx, &info, domid) < 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting domain info list");
|
|
goto out;
|
|
}
|
|
if (!(dompath = libxl__xs_get_dompath(&gc, domid)))
|
|
goto out;
|
|
|
|
retry_transaction:
|
|
t = xs_transaction_start(ctx->xsh);
|
|
for (i = 0; i <= info.vcpu_max_id; i++)
|
|
libxl__xs_write(&gc, t,
|
|
libxl__sprintf(&gc, "%s/cpu/%u/availability", dompath, i),
|
|
"%s", ((1 << i) & bitmask) ? "online" : "offline");
|
|
if (!xs_transaction_end(ctx->xsh, t, 0)) {
|
|
if (errno == EAGAIN)
|
|
goto retry_transaction;
|
|
} else
|
|
rc = 0;
|
|
out:
|
|
libxl__free_all(&gc);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* returns one of the XEN_SCHEDULER_* constants from public/domctl.h
|
|
*/
|
|
int libxl_get_sched_id(libxl_ctx *ctx)
|
|
{
|
|
int sched, ret;
|
|
|
|
if ((ret = xc_sched_id(ctx->xch, &sched)) != 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting domain info list");
|
|
return ERROR_FAIL;
|
|
}
|
|
return sched;
|
|
}
|
|
|
|
int libxl_sched_credit_domain_get(libxl_ctx *ctx, uint32_t domid, libxl_sched_credit *scinfo)
|
|
{
|
|
struct xen_domctl_sched_credit sdom;
|
|
int rc;
|
|
|
|
rc = xc_sched_credit_domain_get(ctx->xch, domid, &sdom);
|
|
if (rc != 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "setting domain sched credit");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
scinfo->weight = sdom.weight;
|
|
scinfo->cap = sdom.cap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int libxl_sched_credit_domain_set(libxl_ctx *ctx, uint32_t domid, libxl_sched_credit *scinfo)
|
|
{
|
|
struct xen_domctl_sched_credit sdom;
|
|
xc_domaininfo_t domaininfo;
|
|
int rc;
|
|
|
|
rc = xc_domain_getinfolist(ctx->xch, domid, 1, &domaininfo);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "getting domain info list");
|
|
return ERROR_FAIL;
|
|
}
|
|
if (rc != 1 || domaininfo.domain != domid)
|
|
return ERROR_INVAL;
|
|
|
|
|
|
if (scinfo->weight < 1 || scinfo->weight > 65535) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Cpu weight out of range, valid values are within range from 1 to 65535");
|
|
return ERROR_INVAL;
|
|
}
|
|
|
|
if (scinfo->cap < 0 || scinfo->cap > (domaininfo.max_vcpu_id + 1) * 100) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Cpu cap out of range, valid range is from 0 to %d for specified number of vcpus",
|
|
((domaininfo.max_vcpu_id + 1) * 100));
|
|
return ERROR_INVAL;
|
|
}
|
|
|
|
sdom.weight = scinfo->weight;
|
|
sdom.cap = scinfo->cap;
|
|
|
|
rc = xc_sched_credit_domain_set(ctx->xch, domid, &sdom);
|
|
if ( rc < 0 ) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "setting domain sched credit");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int trigger_type_from_string(char *trigger_name)
|
|
{
|
|
if (!strcmp(trigger_name, "nmi"))
|
|
return XEN_DOMCTL_SENDTRIGGER_NMI;
|
|
else if (!strcmp(trigger_name, "reset"))
|
|
return XEN_DOMCTL_SENDTRIGGER_RESET;
|
|
else if (!strcmp(trigger_name, "init"))
|
|
return XEN_DOMCTL_SENDTRIGGER_INIT;
|
|
else if (!strcmp(trigger_name, "power"))
|
|
return XEN_DOMCTL_SENDTRIGGER_POWER;
|
|
else if (!strcmp(trigger_name, "sleep"))
|
|
return XEN_DOMCTL_SENDTRIGGER_SLEEP;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
int libxl_send_trigger(libxl_ctx *ctx, uint32_t domid, char *trigger_name, uint32_t vcpuid)
|
|
{
|
|
int rc = -1;
|
|
int trigger_type = trigger_type_from_string(trigger_name);
|
|
|
|
if (trigger_type == -1) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, -1,
|
|
"Invalid trigger, valid triggers are <nmi|reset|init|power|sleep>");
|
|
return ERROR_INVAL;
|
|
}
|
|
|
|
rc = xc_domain_send_trigger(ctx->xch, domid, trigger_type, vcpuid);
|
|
if (rc != 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Send trigger '%s' failed", trigger_name);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int libxl_send_sysrq(libxl_ctx *ctx, uint32_t domid, char sysrq)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dompath = libxl__xs_get_dompath(&gc, domid);
|
|
|
|
libxl__xs_write(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/control/sysrq", dompath), "%c", sysrq);
|
|
|
|
libxl__free_all(&gc);
|
|
return 0;
|
|
}
|
|
|
|
int libxl_send_debug_keys(libxl_ctx *ctx, char *keys)
|
|
{
|
|
int ret;
|
|
ret = xc_send_debug_keys(ctx->xch, keys);
|
|
if ( ret < 0 ) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "sending debug keys");
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
libxl_xen_console_reader *
|
|
libxl_xen_console_read_start(libxl_ctx *ctx, int clear)
|
|
{
|
|
libxl_xen_console_reader *cr;
|
|
unsigned int size = 16384;
|
|
char *buf = malloc(size);
|
|
|
|
if (!buf) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "cannot malloc buffer for libxl_xen_console_reader,"
|
|
" size is %u", size);
|
|
return NULL;
|
|
}
|
|
|
|
cr = malloc(sizeof(libxl_xen_console_reader));
|
|
if (!cr) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "cannot malloc libxl_xen_console_reader");
|
|
return NULL;
|
|
}
|
|
|
|
memset(cr, 0, sizeof(libxl_xen_console_reader));
|
|
cr->buffer = buf;
|
|
cr->size = size;
|
|
cr->count = size;
|
|
cr->clear = clear;
|
|
cr->incremental = 1;
|
|
|
|
return cr;
|
|
}
|
|
|
|
/* return values: *line_r
|
|
* 1 success, whole line obtained from buffer non-0
|
|
* 0 no more lines available right now 0
|
|
* negative error code ERROR_* 0
|
|
* On success *line_r is updated to point to a nul-terminated
|
|
* string which is valid until the next call on the same console
|
|
* reader. The libxl caller may overwrite parts of the string
|
|
* if it wishes. */
|
|
int libxl_xen_console_read_line(libxl_ctx *ctx,
|
|
libxl_xen_console_reader *cr,
|
|
char **line_r)
|
|
{
|
|
int ret;
|
|
|
|
memset(cr->buffer, 0, cr->size);
|
|
ret = xc_readconsolering(ctx->xch, cr->buffer, &cr->count,
|
|
cr->clear, cr->incremental, &cr->index);
|
|
if (ret < 0) {
|
|
LIBXL__LOG_ERRNO(ctx, LIBXL__LOG_ERROR, "reading console ring buffer");
|
|
return ERROR_FAIL;
|
|
}
|
|
if (!ret) {
|
|
if (cr->count) {
|
|
*line_r = cr->buffer;
|
|
ret = 1;
|
|
} else {
|
|
*line_r = NULL;
|
|
ret = 0;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void libxl_xen_console_read_finish(libxl_ctx *ctx,
|
|
libxl_xen_console_reader *cr)
|
|
{
|
|
free(cr->buffer);
|
|
free(cr);
|
|
}
|
|
|
|
uint32_t libxl_vm_get_start_time(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
char *dompath = libxl__xs_get_dompath(&gc, domid);
|
|
char *vm_path, *start_time;
|
|
uint32_t ret;
|
|
|
|
vm_path = libxl__xs_read(
|
|
&gc, XBT_NULL, libxl__sprintf(&gc, "%s/vm", dompath));
|
|
start_time = libxl__xs_read(
|
|
&gc, XBT_NULL, libxl__sprintf(&gc, "%s/start_time", vm_path));
|
|
if (start_time == NULL) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, -1,
|
|
"Can't get start time of domain '%d'", domid);
|
|
ret = -1;
|
|
}else{
|
|
ret = strtoul(start_time, NULL, 10);
|
|
}
|
|
libxl__free_all(&gc);
|
|
return ret;
|
|
}
|
|
|
|
char *libxl_tmem_list(libxl_ctx *ctx, uint32_t domid, int use_long)
|
|
{
|
|
int rc;
|
|
char _buf[32768];
|
|
|
|
rc = xc_tmem_control(ctx->xch, -1, TMEMC_LIST, domid, 32768, use_long,
|
|
0, _buf);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not get tmem list");
|
|
return NULL;
|
|
}
|
|
|
|
return strdup(_buf);
|
|
}
|
|
|
|
int libxl_tmem_freeze(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_tmem_control(ctx->xch, -1, TMEMC_FREEZE, domid, 0, 0,
|
|
0, NULL);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not freeze tmem pools");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_tmem_destroy(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_tmem_control(ctx->xch, -1, TMEMC_DESTROY, domid, 0, 0,
|
|
0, NULL);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not destroy tmem pools");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_tmem_thaw(libxl_ctx *ctx, uint32_t domid)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_tmem_control(ctx->xch, -1, TMEMC_THAW, domid, 0, 0,
|
|
0, NULL);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not thaw tmem pools");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int32_t tmem_setop_from_string(char *set_name)
|
|
{
|
|
if (!strcmp(set_name, "weight"))
|
|
return TMEMC_SET_WEIGHT;
|
|
else if (!strcmp(set_name, "cap"))
|
|
return TMEMC_SET_CAP;
|
|
else if (!strcmp(set_name, "compress"))
|
|
return TMEMC_SET_COMPRESS;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
int libxl_tmem_set(libxl_ctx *ctx, uint32_t domid, char* name, uint32_t set)
|
|
{
|
|
int rc;
|
|
int32_t subop = tmem_setop_from_string(name);
|
|
|
|
if (subop == -1) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, -1,
|
|
"Invalid set, valid sets are <weight|cap|compress>");
|
|
return ERROR_INVAL;
|
|
}
|
|
rc = xc_tmem_control(ctx->xch, -1, subop, domid, set, 0, 0, NULL);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not set tmem %s", name);
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_tmem_shared_auth(libxl_ctx *ctx, uint32_t domid,
|
|
char* uuid, int auth)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_tmem_auth(ctx->xch, domid, uuid, auth);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not set tmem shared auth");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_tmem_freeable(libxl_ctx *ctx)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_tmem_control(ctx->xch, -1, TMEMC_QUERY_FREEABLE_MB, -1, 0, 0, 0, 0);
|
|
if (rc < 0) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Can not get tmem freeable memory");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
void libxl_file_reference_destroy(libxl_file_reference *f)
|
|
{
|
|
libxl__file_reference_unmap(f);
|
|
free(f->path);
|
|
}
|
|
|
|
int libxl_get_freecpus(libxl_ctx *ctx, libxl_cpumap *cpumap)
|
|
{
|
|
int ncpus;
|
|
|
|
ncpus = libxl_get_max_cpus(ctx);
|
|
if (ncpus == 0)
|
|
return ERROR_FAIL;
|
|
|
|
cpumap->map = xc_cpupool_freeinfo(ctx->xch);
|
|
if (cpumap->map == NULL)
|
|
return ERROR_FAIL;
|
|
|
|
cpumap->size = (ncpus + 7) / 8;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int libxl_create_cpupool(libxl_ctx *ctx, char *name, int schedid,
|
|
libxl_cpumap cpumap, libxl_uuid *uuid,
|
|
uint32_t *poolid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc;
|
|
int i;
|
|
xs_transaction_t t;
|
|
char *uuid_string;
|
|
|
|
uuid_string = libxl__uuid2string(&gc, *uuid);
|
|
if (!uuid_string)
|
|
return ERROR_NOMEM;
|
|
|
|
rc = xc_cpupool_create(ctx->xch, poolid, schedid);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Could not create cpupool");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
libxl_for_each_cpu(i, cpumap)
|
|
if (libxl_cpumap_test(&cpumap, i)) {
|
|
rc = xc_cpupool_addcpu(ctx->xch, *poolid, i);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Error moving cpu to cpupool");
|
|
libxl_destroy_cpupool(ctx, *poolid);
|
|
return ERROR_FAIL;
|
|
}
|
|
}
|
|
|
|
for (;;) {
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
xs_mkdir(ctx->xsh, t, libxl__sprintf(&gc, "/local/pool/%d", *poolid));
|
|
libxl__xs_write(&gc, t,
|
|
libxl__sprintf(&gc, "/local/pool/%d/uuid", *poolid),
|
|
"%s", uuid_string);
|
|
libxl__xs_write(&gc, t,
|
|
libxl__sprintf(&gc, "/local/pool/%d/name", *poolid),
|
|
"%s", name);
|
|
|
|
if (xs_transaction_end(ctx->xsh, t, 0) || (errno != EAGAIN))
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int libxl_destroy_cpupool(libxl_ctx *ctx, uint32_t poolid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc, i;
|
|
xc_cpupoolinfo_t *info;
|
|
xs_transaction_t t;
|
|
libxl_cpumap cpumap;
|
|
|
|
info = xc_cpupool_getinfo(ctx->xch, poolid);
|
|
if (info == NULL)
|
|
return ERROR_NOMEM;
|
|
|
|
rc = ERROR_INVAL;
|
|
if ((info->cpupool_id != poolid) || (info->n_dom))
|
|
goto out;
|
|
|
|
rc = ERROR_NOMEM;
|
|
if (libxl_cpumap_alloc(ctx, &cpumap))
|
|
goto out;
|
|
|
|
memcpy(cpumap.map, info->cpumap, cpumap.size);
|
|
libxl_for_each_cpu(i, cpumap)
|
|
if (libxl_cpumap_test(&cpumap, i)) {
|
|
rc = xc_cpupool_removecpu(ctx->xch, poolid, i);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Error removing cpu from cpupool");
|
|
rc = ERROR_FAIL;
|
|
goto out1;
|
|
}
|
|
}
|
|
|
|
rc = xc_cpupool_destroy(ctx->xch, poolid);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc, "Could not destroy cpupool");
|
|
rc = ERROR_FAIL;
|
|
goto out1;
|
|
}
|
|
|
|
for (;;) {
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
xs_rm(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "/local/pool/%d", poolid));
|
|
|
|
if (xs_transaction_end(ctx->xsh, t, 0) || (errno != EAGAIN))
|
|
break;
|
|
}
|
|
|
|
rc = 0;
|
|
|
|
out1:
|
|
libxl_cpumap_destroy(&cpumap);
|
|
out:
|
|
xc_cpupool_infofree(ctx->xch, info);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int libxl_cpupool_cpuadd(libxl_ctx *ctx, uint32_t poolid, int cpu)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_cpupool_addcpu(ctx->xch, poolid, cpu);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Error moving cpu to cpupool");
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_cpupool_cpuremove(libxl_ctx *ctx, uint32_t poolid, int cpu)
|
|
{
|
|
int rc;
|
|
|
|
rc = xc_cpupool_removecpu(ctx->xch, poolid, cpu);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Error removing cpu from cpupool");
|
|
return ERROR_FAIL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int libxl_cpupool_movedomain(libxl_ctx *ctx, uint32_t poolid, uint32_t domid)
|
|
{
|
|
libxl__gc gc = LIBXL_INIT_GC(ctx);
|
|
int rc;
|
|
char *dom_path;
|
|
char *vm_path;
|
|
char *poolname;
|
|
xs_transaction_t t;
|
|
|
|
dom_path = libxl__xs_get_dompath(&gc, domid);
|
|
if (!dom_path) {
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
rc = xc_cpupool_movedomain(ctx->xch, poolid, domid);
|
|
if (rc) {
|
|
LIBXL__LOG_ERRNOVAL(ctx, LIBXL__LOG_ERROR, rc,
|
|
"Error moving domain to cpupool");
|
|
return ERROR_FAIL;
|
|
}
|
|
|
|
for (;;) {
|
|
t = xs_transaction_start(ctx->xsh);
|
|
|
|
poolname = libxl__cpupoolid_to_name(&gc, poolid);
|
|
vm_path = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/vm", dom_path));
|
|
if (!vm_path)
|
|
break;
|
|
|
|
libxl__xs_write(&gc, t, libxl__sprintf(&gc, "%s/pool_name", vm_path),
|
|
"%s", poolname);
|
|
|
|
if (xs_transaction_end(ctx->xsh, t, 0) || (errno != EAGAIN))
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|