KVM: SEV: Mark vCPU has having guest-provided VMSA even if its invalid

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Track the guest as having a guest-provided VMSA as soon as control.vmsa_pa
is invalidated, instead of waiting to see if the guest-provided VMSA is
usable, so that KVM doesn't switch back to the original VMSA instead of
exiting to userspace (due to an invalid VMSA).  By the time a vCPU tries
to load a guest-provided VMSA, KVM has already communicated "success" for
AP creation, i.e. KVM has committed to using the guest-provided VMSA.

Reviewed-by: Michael Roth <michael.roth@amd.com>
Link: https://patch.msgid.link/20260709204948.1988414-12-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Sean Christopherson 2026-07-09 13:49:41 -07:00

parent d1a3c21623

commit 98fb11aed1

1 changed files with 11 additions and 11 deletions

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arch/x86/kvm/svm/sev.c

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