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Ian Jackson
e1ed22be85
I want this to support my qemu depriv descriptor audit tool. Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> CC: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/******************************************************************************
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*
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* Copyright (c) 2007-2008, D G Murray <Derek.Murray@cl.cam.ac.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*
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* Split out from xc_gnttab.c
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*/
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#include <stdlib.h>
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#include "private.h"
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xengntshr_handle *xengntshr_open(xentoollog_logger *logger, unsigned open_flags)
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{
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xengntshr_handle *xgs = malloc(sizeof(*xgs));
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int rc;
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if (!xgs) return NULL;
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xgs->fd = -1;
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xgs->logger = logger;
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xgs->logger_tofree = NULL;
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if (!xgs->logger) {
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xgs->logger = xgs->logger_tofree =
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(xentoollog_logger*)
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xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
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if (!xgs->logger) goto err;
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}
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rc = osdep_gntshr_open(xgs);
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if ( rc < 0 ) goto err;
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return xgs;
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err:
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osdep_gntshr_close(xgs);
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xtl_logger_destroy(xgs->logger_tofree);
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free(xgs);
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return NULL;
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}
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int xengntshr_close(xengntshr_handle *xgs)
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{
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int rc;
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if ( !xgs )
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return 0;
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rc = osdep_gntshr_close(xgs);
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xtl_logger_destroy(xgs->logger_tofree);
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free(xgs);
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return rc;
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}
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int xengntshr_fd(xengntshr_handle *xgs)
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{
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return xgs->fd;
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}
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void *xengntshr_share_pages(xengntshr_handle *xcg, uint32_t domid,
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int count, uint32_t *refs, int writable)
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{
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return osdep_gntshr_share_pages(xcg, domid, count, refs, writable, -1, -1);
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}
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void *xengntshr_share_page_notify(xengntshr_handle *xcg, uint32_t domid,
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uint32_t *ref, int writable,
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uint32_t notify_offset,
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evtchn_port_t notify_port)
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{
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return osdep_gntshr_share_pages(xcg, domid, 1, ref, writable,
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notify_offset, notify_port);
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}
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int xengntshr_unshare(xengntshr_handle *xgs, void *start_address, uint32_t count)
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{
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return osdep_gntshr_unshare(xgs, start_address, count);
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}
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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