387129caad
- bnc#803712 - after live migration rcu_sched_state detected stalls xen.migrate.tools-xend_move_assert_to_exception_block.patch xen.migrate.tools-libxc_print_stats_if_migration_is_aborted.patch xen.migrate.tools_set_number_of_dirty_pages_during_migration.patch xen.migrate.tools_notify_restore_to_hangup_during_migration_--abort_if_busy.patch - bnc#811764 - XEN (hypervisor or kernel) has a problem with EFI variable services x86-EFI-set-variable-permit-attrs.patch - Upstream patches from Jan 26060-ACPI-ERST-table-size-checks.patch 26692-x86-fully-protect-MSI-X-table-from-PV-guest-accesses.patch 26702-powernow-add-fixups-for-AMD-P-state-figures.patch 26704-x86-MCA-suppress-bank-clearing-for-certain-injected-events.patch (bnc#805579) 26731-AMD-IOMMU-Process-softirqs-while-building-dom0-iommu-mappings.patch 26733-VT-d-Enumerate-IOMMUs-when-listing-capabilities.patch 26734-ACPI-ERST-Name-table-in-otherwise-opaque-error-messages.patch 26736-ACPI-APEI-Unlock-apei_iomaps_lock-on-error-path.patch 26737-ACPI-APEI-Add-apei_exec_run_optional.patch 26742-IOMMU-properly-check-whether-interrupt-remapping-is-enabled.patch 26743-VT-d-deal-with-5500-5520-X58-errata.patch (bnc#801910) 26744-AMD-IOMMU-allow-disabling-only-interrupt-remapping.patch - PVonHVM: __devinit was removed in linux-3.8 OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=234
79 lines
3.7 KiB
Diff
79 lines
3.7 KiB
Diff
Allow multiple bootloader loopback devices
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Starting several domains concurrently can fail due to using a single
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bootloader loopback device. This patch creates a list of bootloader
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loopback devices so more than one instance of bootloader can be run
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concurrently.
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Index: xen-4.2.1-testing/tools/python/xen/xend/XendDomainInfo.py
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===================================================================
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--- xen-4.2.1-testing.orig/tools/python/xen/xend/XendDomainInfo.py
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+++ xen-4.2.1-testing/tools/python/xen/xend/XendDomainInfo.py
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@@ -74,7 +74,7 @@ from xen.xend.XendPSCSI import XendPSCSI
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from xen.xend.XendDSCSI import XendDSCSI, XendDSCSI_HBA
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MIGRATE_TIMEOUT = 30.0
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-BOOTLOADER_LOOPBACK_DEVICE = '/dev/xvdp'
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+BOOTLOADER_LOOPBACK_DEVICES = ['/dev/xvd' + chr(x) for x in range(ord('z'), ord('d'), -1)]
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xc = xen.lowlevel.xc.xc()
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xoptions = XendOptions.instance()
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@@ -3324,33 +3324,38 @@ class XendDomainInfo:
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# This is a file, not a device. pygrub can cope with a
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# file if it's raw, but if it's QCOW or other such formats
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# used through blktap, then we need to mount it first.
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-
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- log.info("Mounting %s on %s." %
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- (fn, BOOTLOADER_LOOPBACK_DEVICE))
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-
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- vbd = {
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- 'mode': 'RW',
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- 'device': BOOTLOADER_LOOPBACK_DEVICE,
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- }
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-
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- from xen.xend import XendDomain
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- dom0 = XendDomain.instance().privilegedDomain()
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- mounted_vbd_uuid = dom0.create_vbd(vbd, disk);
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- vbd_uuid = dom0.create_vbd(vbd, disk)
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- dom0._waitForDeviceFrontUUID(vbd_uuid)
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- fn = BOOTLOADER_LOOPBACK_DEVICE
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-
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+ # Try all possible loopback_devices
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+ for loopback_device in BOOTLOADER_LOOPBACK_DEVICES:
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+ log.info("Mounting %s on %s." % (fn, loopback_device))
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+ vbd = { 'mode' : 'RW', 'device' : loopback_device, }
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+ try:
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+ from xen.xend import XendDomain
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+ dom0 = XendDomain.instance().privilegedDomain()
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+ mounted_vbd_uuid = dom0.create_vbd(vbd, disk)
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+ dom0._waitForDeviceFrontUUID(mounted_vbd_uuid)
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+ fn = loopback_device
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+ break
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+ except VmError, e:
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+ if str(e).find('already connected.') != -1:
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+ continue
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+ elif str(e).find('isn\'t accessible') != -1:
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+ dom0.destroyDevice('vbd', loopback_device, force = True, rm_cfg = True)
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+ continue
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+ else:
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+ raise
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+ else:
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+ raise
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try:
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blcfg = bootloader(blexec, fn, self, False,
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bootloader_args, kernel, ramdisk, args)
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finally:
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if mounted:
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log.info("Unmounting %s from %s." %
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- (fn, BOOTLOADER_LOOPBACK_DEVICE))
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+ (fn, loopback_device))
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if devtype in ['tap', 'tap2']:
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- dom0.destroyDevice('tap', BOOTLOADER_LOOPBACK_DEVICE, rm_cfg = True)
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+ dom0.destroyDevice('tap', loopback_device, rm_cfg = True)
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else:
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- dom0.destroyDevice('vbd', BOOTLOADER_LOOPBACK_DEVICE, rm_cfg = True)
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+ dom0.destroyDevice('vbd', loopback_device, rm_cfg = True)
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if blcfg is None:
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msg = "Had a bootloader specified, but can't find disk"
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log.error(msg)
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