KVM: SVM: Update control fields on #VMEXIT if and only if VMRUN succeeded

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Leave control.erap_ctl and control.clean as-is in the VMCS if VMRUN fails,
because as per AMD:

  there's no explicit architectural guarantee about the behavior in the
  presence of VMRUN failures. So the best thing to do would be to assume
  that if VMRUN fails, the actions requested in the control fields may not
  have been performed.

Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20260904170642.3291466-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Sean Christopherson 2026-09-04 10:06:40 -07:00 • committed by Paolo Bonzini

parent 60d93c2785

commit e27fc915c8

1 changed files with 8 additions and 8 deletions

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arch/x86/kvm/svm/svm.c

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