CPUID leaf 0x80000021 defines some features (or lack of bugs) of AMD
processors.  This small series implements it, and also synthesizes
for use on processors that do not have the "Null selector clear base"
erratum but do not support the leaf 0x80000021 either.

Paolo

Paolo Bonzini (2):
  KVM: x86: add support for CPUID leaf 0x80000021
  KVM: x86: synthesize CPUID leaf 0x80000021h if useful

 arch/x86/kvm/cpuid.c | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

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2.31.1