On 07/29/14 12:39, Paolo Bonzini wrote: > Il 29/07/2014 12:31, Michael S. Tsirkin ha scritto: >>> For patch "piix: set legacy table size for 1.7": didn't Igor say >>> something that such a migration wouldn't work anyway? I could be >>> remembering wrong. >> >> I don't recall this, but if there are more bug we could just >> fix them too. > > You have to choose between a "-M pc-i440fx-1.7" that migrates from 1.7 > to 2.1, and one that migrates from 2.0 to 2.1. > > - to make 1.7->2.1 work: you need both Igor's patch ("generate AML > only...") and "piix: set legacy table size for 1.7". All configurations > will work, including those with PCI bridges. > > - to make 2.0->2.1 work (with "-M pc-i440fx-1.7"): you need to omit > "piix: set legacy table size for 1.7", and configurations with PCI > bridges remain broken. Igor's patch is not needed, because it only > affects configurations with PCI bridges. > > mst prefers the first one, and he changed my view on that too. And he > noticed that with "piix: set legacy table size for 1.7" more things just > work, so it's better to include it.
I see. Thanks. > 1 acd727e acpi-dsdt: procedurally generate _PRT > 2 07fb617 pc: hack for migration compatibility from QEMU 2.0 These already have my R-b. > 3 3d5061f bios-tables-test: fix ASL normalization false positive Just gave my R-b in this thread. > 4 82631f6 pc: acpi: generate AML only for PCI0 devices if PCI bridge hotplug > is disabled Acked-by: Laszlo Ersek <ler...@redhat.com> > 5 1cffcf8 acpi-build: minor code cleanup Typos in the commit message should be fixed. With those changes, Reviewed-by: Laszlo Ersek <ler...@redhat.com> > 6 3200ac6 pc: future-proof migration-compatibility of ACPI tables Has my R-b already. > 7 004af2c acpi-build: tweak acpi migration limits Reviewed-by: Laszlo Ersek <ler...@redhat.com> > 8 5c35a24 piix: set legacy table size for 1.7 Acked-by: Laszlo Ersek <ler...@redhat.com> Laszlo