| commit | 62271205bcfaee440d06c06060ee79dac657caff | |
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | |
| Wed, 24 Mar 2021 13:54:43 +0000 (24 14:54 +0100) | ||
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | |
| Tue, 13 Apr 2021 10:06:59 +0000 (13 12:06 +0200) | ||
| tree | a213a2671527ad6bb58ca83fa3ad52eaed12fc55 | treesnapshot (tar.gz zip) |
| parent | 50fab4cc672233fee22fff2cf51543af57602c7d | commitdiff |
hw/isa/piix4: Migrate Reset Control Register
When adding the Reset register in commit 5790b757cfb we
forgot to migrate it.
While it is possible a VM using the PIIX4 is migrated just
after requesting a system shutdown, it is very unlikely.
However when restoring a migrated VM, we might have the
RCR bit #4 set on the stack and when the VM resume it
directly shutdowns.
Add a post_load() migration handler and set the default
RCR value to 0 for earlier versions, assuming the VM was
not going to shutdown before migration.
Fixes: 5790b757cfb ("piix4: Add the Reset Control Register")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210324200334.729899-1-f4bug@amsat.org>
When adding the Reset register in commit 5790b757cfb we
forgot to migrate it.
While it is possible a VM using the PIIX4 is migrated just
after requesting a system shutdown, it is very unlikely.
However when restoring a migrated VM, we might have the
RCR bit #4 set on the stack and when the VM resume it
directly shutdowns.
Add a post_load() migration handler and set the default
RCR value to 0 for earlier versions, assuming the VM was
not going to shutdown before migration.
Fixes: 5790b757cfb ("piix4: Add the Reset Control Register")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20210324200334.729899-1-f4bug@amsat.org>
| hw/isa/piix4.c | diffblobblamehistory |