From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 10 Jul 2020 15:48:07 +0000 (+0200)
Subject: KVM: x86: update exception bitmap on CPUID changes
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=32de2b5ee378ae590c90135e4d7f5c9149a04990;p=linux.git

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 edbed4f522f2a..7d92854082a14 100644
--- 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)