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libvirt/7a1452f5-libxl-empty-cdrom.patch
James Fehlig 52a7fec2c4 - libxl: Set disk format for empty cdrom device
0e0c1a74-domid-fix.patch, 7a1452f5-libxl-empty-cdrom.patch
  bnc#872517

OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=365
2014-04-08 17:20:15 +00:00

32 lines
1.4 KiB
Diff

commit 7a1452f5334f98680187ae6d11fe2a49c1b38548
Author: Stefan Bader <stefan.bader@canonical.com>
Date: Thu Mar 27 17:55:03 2014 +0100
libxl: Set disk format for empty cdrom device
The XML config for a CDROM device can be without a source path,
indicating that there is no media present. Without this change
the libxl driver fails to start a guest in that case because
the libxl library checks for the LIBXL_DISK_FORMAT_EMPTY format
type and tries to stat the NULL pointer that gets passed on.
> libxl: error: libxl_device.c:265:libxl__device_disk_set_backend:
> Disk vdev=hdc failed to stat: (null): Bad address
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Index: libvirt-1.2.3/src/libxl/libxl_conf.c
===================================================================
--- libvirt-1.2.3.orig/src/libxl/libxl_conf.c
+++ libvirt-1.2.3/src/libxl/libxl_conf.c
@@ -827,6 +827,9 @@ libxlMakeDisk(virDomainDiskDefPtr l_disk
x_disk->removable = 1;
x_disk->readwrite = !l_disk->readonly;
x_disk->is_cdrom = l_disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0;
+ /* An empty CDROM must have the empty format, otherwise libxl fails. */
+ if (x_disk->is_cdrom && !x_disk->pdev_path)
+ x_disk->format = LIBXL_DISK_FORMAT_EMPTY;
if (l_disk->transient) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight does not support transient disks"));