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authorJan Kiszka <jan.kiszka@siemens.com>2011-02-03 22:54:13 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2011-02-04 06:53:52 -0600
commit8faaf42a4c2f8a16cae315abb366d92c6d370684 (patch)
treea848b7bb78902d793a5d7987f957318283e8e23d
parentf05929b182f279e9ab2ae8c9da5b8db80f8c56c4 (diff)
ioapic: Add support for qemu-kvm's vmstate v2
qemu-kvm carries the IOAPIC base address in its v2 vmstate. We only support the default base address so far, and saving even that in the device state was rejected. Add a padding field to be able to read qemu-kvm's old state, but increase our version to 3, indicating that we are not saving a valid address. This also gives downstream the chance to change to stop evaluating the base_address and move to v3 as well. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> (cherry picked from commit 5dce499948e4a4abe62f010baf4a7ed3d49e53cb)
-rw-r--r--hw/ioapic.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/ioapic.c b/hw/ioapic.c
index 8c46c1dfdb..fb3d17329a 100644
--- a/hw/ioapic.c
+++ b/hw/ioapic.c
@@ -244,13 +244,14 @@ static int ioapic_post_load(void *opaque, int version_id)
static const VMStateDescription vmstate_ioapic = {
.name = "ioapic",
- .version_id = 2,
+ .version_id = 3,
.post_load = ioapic_post_load,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField []) {
VMSTATE_UINT8(id, IOAPICState),
VMSTATE_UINT8(ioregsel, IOAPICState),
+ VMSTATE_UNUSED_V(2, 8), /* to account for qemu-kvm's v2 format */
VMSTATE_UINT32_V(irr, IOAPICState, 2),
VMSTATE_UINT64_ARRAY(ioredtbl, IOAPICState, IOAPIC_NUM_PINS),
VMSTATE_END_OF_LIST()