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| author | Cole Robinson <crobinso@redhat.com> | 2013-11-05 18:46:27 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-11-10 12:08:37 +0200 |
| commit | 04c7d8b8dea724f1007f0f6e76047ff03b4cb24f (patch) | |
| tree | 019e2c6abc0002a80903abd8fc4bc062aa156c33 /include | |
| parent | c2d30667760e3d7b81290d801e567d4f758825ca (diff) | |
| download | qemu-04c7d8b8dea724f1007f0f6e76047ff03b4cb24f.tar.gz qemu-04c7d8b8dea724f1007f0f6e76047ff03b4cb24f.tar.bz2 qemu-04c7d8b8dea724f1007f0f6e76047ff03b4cb24f.zip | |
Fix pc migration from qemu <= 1.5
The following commit introduced a migration incompatibility:
commit 568f0690fd9aa4d39d84b04c1a5dbb53a915c3fe
Author: David Gibson <david@gibson.dropbear.id.au>
Date: Thu Jun 6 18:48:49 2013 +1000
pci: Replace pci_find_domain() with more general pci_root_bus_path()
The issue is that i440fx savevm idstr went from 0000:00:00.0/I440FX to
0000:00.0/I440FX. Unfortunately we are stuck with the breakage for
1.6 machine types.
Add a compat property to maintain the busted idstr for the 1.6 machine
types, but revert to the old style format for 1.7+, and <= 1.5.
Tested with migration from qemu 1.5, qemu 1.6, and qemu.git.
Cc: qemu-stable@nongnu.org
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/pc.h | 16 | ||||
| -rw-r--r-- | include/hw/pci-host/q35.h | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 03cc0ba0f7..57e8d16180 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -260,6 +260,14 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t); .driver = "qemu32-" TYPE_X86_CPU,\ .property = "model",\ .value = stringify(3),\ + },{\ + .driver = "i440FX-pcihost",\ + .property = "short_root_bus",\ + .value = stringify(1),\ + },{\ + .driver = "q35-pcihost",\ + .property = "short_root_bus",\ + .value = stringify(1),\ } #define PC_COMPAT_1_5 \ @@ -296,6 +304,14 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t); .driver = TYPE_X86_CPU,\ .property = "pmu",\ .value = "on",\ + },{\ + .driver = "i440FX-pcihost",\ + .property = "short_root_bus",\ + .value = stringify(0),\ + },{\ + .driver = "q35-pcihost",\ + .property = "short_root_bus",\ + .value = stringify(0),\ } #define PC_COMPAT_1_4 \ diff --git a/include/hw/pci-host/q35.h b/include/hw/pci-host/q35.h index aee91aa038..309065fa41 100644 --- a/include/hw/pci-host/q35.h +++ b/include/hw/pci-host/q35.h @@ -61,6 +61,7 @@ typedef struct MCHPCIState { ram_addr_t above_4g_mem_size; uint64_t pci_hole64_size; PcGuestInfo *guest_info; + uint32_t short_root_bus; } MCHPCIState; typedef struct Q35PCIHost { |