KVM: SVM: Inhibit APIC virtualization for X2APIC guest
The AVIC does not support guest use of the x2APIC interface. Currently, KVM simply chooses to squash the x2APIC feature in the guest's CPUID If the AVIC is enabled. Doing so prevents KVM from running a guest with greater than 255 vCPUs, as such a guest necessitates the use of the x2APIC interface. Instead, inhibit AVIC enablement on a per-VM basis whenever the x2APIC feature is set in the guest's CPUID. Signed-off-by:Oliver Upton <oupton@google.com> Reviewed-by:
Jim Mattson <jmattson@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
parent
4d395762
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