KVM: SVM: Emulate SYSENTER RIP/RSP behavior for all Intel compat vCPUs

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Emulate bits 63:32 of the SYSENTER_R{I,S}P MSRs for all vCPUs that are
compatible with Intel's architecture, not just strictly vCPUs that have
vendor==Intel.  The behavior of bits 63:32 is architecturally defined in
the SDM, i.e. not some uarch specific quirk of Intel CPUs.

Link: https://lore.kernel.org/r/20240405235603.1173076-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2024-04-05 16:56:00 -07:00

parent d99e4cb2ae

commit dc2b8b2b52

2 changed files with 7 additions and 15 deletions

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8

arch/x86/kvm/cpuid.h

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14

arch/x86/kvm/svm/svm.c

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