[RFT PATCH v2 0/2] Fix cross migration issue with missing features: pdcm, arch-capabilities

[Paolo Bonzini <pbonzini@redhat.com>]

Add two compatibility properties to restore legacy behavior of machine types
prior to QEMU 10.1.  Each of them addresses the two changes to CPUID:

- ARCH_CAPABILITIES should not be autoenabled when the CPU model specifies AMD
  as the vendor

- specifying PDCM without PMU now causes an error, instead of being silently
  dropped in cpu_x86_cpuid.

Note, I only tested this lightly.

Paolo

Hector Cao (1):
  target/i386: add compatibility property for pdcm feature

Paolo Bonzini (1):
  target/i386: add compatibility property for arch_capabilities

 target/i386/cpu.h     | 12 ++++++++++++
 hw/i386/pc.c          |  2 ++
 target/i386/cpu.c     | 32 +++++++++++++++++++++++++++++---
 target/i386/kvm/kvm.c |  6 +-----
 4 files changed, 44 insertions(+), 8 deletions(-)

-- 
2.51.0