mirror of
https://github.com/xen-project/xen.git
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Keir Fraser
b0a1af6167
This patch implements pci passthrough (hotplug and coldplug) in libxenlight, it also adds three new commands to xl: pci-attach, pci-detach and pci-list. Currently flr on a device is done writing to /sys/bus/pci/drivers/pciback/do_flr pciback do_flr is present in both XCI and XCP 2.6.27 kernels. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
145 lines
5.2 KiB
C
145 lines
5.2 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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#ifndef LIBXL_INTERNAL_H
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# define LIBXL_INTERNAL_H
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#include <stdint.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <xs.h>
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#include <xenctrl.h>
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#include "flexarray.h"
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#include "libxl_utils.h"
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#define LIBXL_DESTROY_TIMEOUT 10
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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#define XL_LOGGING_ENABLED
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#ifdef XL_LOGGING_ENABLED
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#define XL_LOG(ctx, loglevel, _f, _a...) xl_log(ctx, loglevel, __FILE__, __LINE__, __func__, _f, ##_a)
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#else
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#define XL_LOG(ctx, loglevel, _f, _a...)
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#endif
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#define XL_LOG_DEBUG 3
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#define XL_LOG_INFO 2
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#define XL_LOG_WARNING 1
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#define XL_LOG_ERROR 0
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void xl_log(struct libxl_ctx *ctx, int loglevel, const char *file, int line, const char *func, char *fmt, ...);
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typedef struct {
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uint32_t store_port;
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unsigned long store_mfn;
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uint32_t console_port;
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unsigned long console_mfn;
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} libxl_domain_build_state;
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typedef enum {
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DEVICE_VIF,
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DEVICE_VBD,
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DEVICE_TAP,
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DEVICE_PCI,
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DEVICE_VFB,
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DEVICE_VKBD,
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} libxl_device_kinds;
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typedef struct {
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uint32_t backend_devid;
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uint32_t backend_domid;
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uint32_t devid;
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uint32_t domid;
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libxl_device_kinds backend_kind;
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libxl_device_kinds kind;
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} libxl_device;
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#define XC_PCI_BDF "0x%x, 0x%x, 0x%x, 0x%x"
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#define AUTO_PHP_SLOT 0x100
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#define SYSFS_PCI_DEV /sys/bus/pci/devices
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#define PROC_PCI_NUM_RESOURCES 7
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#define PCI_BAR_IO 0x01
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#define PRINTF_ATTRIBUTE(x, y) __attribute__((format(printf, x, y)))
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/* memory allocation tracking/helpers */
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int libxl_ptr_add(struct libxl_ctx *ctx, void *ptr);
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int libxl_free(struct libxl_ctx *ctx, void *ptr);
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int libxl_free_all(struct libxl_ctx *ctx);
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void *libxl_zalloc(struct libxl_ctx *ctx, int bytes);
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void *libxl_calloc(struct libxl_ctx *ctx, size_t nmemb, size_t size);
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char *libxl_sprintf(struct libxl_ctx *ctx, const char *fmt, ...) PRINTF_ATTRIBUTE(2, 3);
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char *libxl_dirname(struct libxl_ctx *ctx, const char *s);
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char **libxl_xs_kvs_of_flexarray(struct libxl_ctx *ctx, flexarray_t *array, int length);
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int libxl_xs_writev(struct libxl_ctx *ctx, xs_transaction_t t,
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char *dir, char **kvs);
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int libxl_xs_write(struct libxl_ctx *ctx, xs_transaction_t t,
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char *path, char *fmt, ...);
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char *libxl_xs_get_dompath(struct libxl_ctx *ctx, uint32_t domid);
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char *libxl_xs_read(struct libxl_ctx *ctx, xs_transaction_t t, char *path);
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char **libxl_xs_directory(struct libxl_ctx *ctx, xs_transaction_t t, char *path, unsigned int *nb);
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/* from xl_dom */
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int is_hvm(struct libxl_ctx *ctx, uint32_t domid);
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int build_pre(struct libxl_ctx *ctx, uint32_t domid,
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libxl_domain_build_info *info, libxl_domain_build_state *state);
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int build_post(struct libxl_ctx *ctx, uint32_t domid,
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libxl_domain_build_info *info, libxl_domain_build_state *state,
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char **vms_ents, char **local_ents);
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int build_pv(struct libxl_ctx *ctx, uint32_t domid,
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libxl_domain_build_info *info, libxl_domain_build_state *state);
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int build_hvm(struct libxl_ctx *ctx, uint32_t domid,
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libxl_domain_build_info *info, libxl_domain_build_state *state);
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int restore_common(struct libxl_ctx *ctx, uint32_t domid,
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libxl_domain_build_info *info, libxl_domain_build_state *state, int fd);
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int core_suspend(struct libxl_ctx *ctx, uint32_t domid, int fd, int hvm, int live, int debug);
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/* from xl_device */
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char *device_disk_backend_type_of_phystype(libxl_disk_phystype phystype);
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char *device_disk_string_of_phystype(libxl_disk_phystype phystype);
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int device_disk_major_minor(char *virtpath, int *major, int *minor);
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int device_disk_dev_number(char *virtpath);
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int libxl_device_generic_add(struct libxl_ctx *ctx, libxl_device *device,
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char **bents, char **fents);
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int libxl_device_destroy(struct libxl_ctx *ctx, char *be_path, int force);
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int libxl_devices_destroy(struct libxl_ctx *ctx, uint32_t domid, int force);
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int libxl_wait_for_device_model(struct libxl_ctx *ctx, uint32_t domid, char *state);
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int libxl_wait_for_backend(struct libxl_ctx *ctx, char *be_path, char *state);
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int libxl_device_pci_flr(struct libxl_ctx *ctx, unsigned int domain, unsigned int bus,
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unsigned int dev, unsigned int func);
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/* from xenguest (helper */
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int hvm_build_set_params(int handle, uint32_t domid,
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int apic, int acpi, int pae, int nx, int viridian,
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int vcpus, int store_evtchn, unsigned long *store_mfn);
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/* xl_exec */
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int libxl_exec(struct libxl_ctx *ctx, int stdinfd, int stdoutfd, int stderrfd,
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char *arg0, char **args);
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#endif
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