KVM: x86: update exception bitmap on CPUID changes

Allow vendor code to observe changes to MAXPHYADDR and start/stop
intercepting page faults.

Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index edbed4f522f2a69fadad43709ec0953af96a4d1f..7d92854082a14330f373e9343dd78054618eceb1 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -148,6 +148,7 @@ static void kvm_vcpu_after_set_cpuid(struct kvm_vcpu *vcpu)
        kvm_pmu_refresh(vcpu);
        vcpu->arch.cr4_guest_rsvd_bits =
            __cr4_reserved_bits(guest_cpuid_has, vcpu);
+       kvm_x86_ops.update_exception_bitmap(vcpu);
 }
 
 static int is_efer_nx(void)