Revert "KVM: SVM: Sync g_pat with guest-written PAT value"

This reverts commit e098223b789b4a618dacd79e5e0dad4a9d5018d1,
which has a dependency on other commits being reverted.

Cc: stable@vger.kernel.org # 4.2+
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9e88078f41463aeaf51c167ecf131afe94f1a74c..22601206ffd7c466a4300a6103db981775f7f478 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3354,16 +3354,6 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
        case MSR_VM_IGNNE:
                vcpu_unimpl(vcpu, "unimplemented wrmsr: 0x%x data 0x%llx\n", ecx, data);
                break;
-       case MSR_IA32_CR_PAT:
-               if (npt_enabled) {
-                       if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data))
-                               return 1;
-                       vcpu->arch.pat = data;
-                       svm_set_guest_pat(svm, &svm->vmcb->save.g_pat);
-                       mark_dirty(svm->vmcb, VMCB_NPT);
-                       break;
-               }
-               /* fall through */
        default:
                return kvm_set_msr_common(vcpu, msr);
        }