Patch "Revert "KVM: SVM: Sync g_pat with guest-written PAT value"" has been added to the 4.2-stable tree

Patch "Revert "KVM: SVM: Sync g_pat with guest-written PAT value"" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

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

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     revert-kvm-svm-sync-g_pat-with-guest-written-pat-value.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 625422f60c55bbc368b8568ff925770b36bfc189 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 1 Oct 2015 13:28:15 +0200
Subject: Revert "KVM: SVM: Sync g_pat with guest-written PAT value"

From: Paolo Bonzini <pbonzini@redhat.com>

commit 625422f60c55bbc368b8568ff925770b36bfc189 upstream.

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

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kvm/svm.c |   10 ----------
 1 file changed, 10 deletions(-)

--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3255,16 +3255,6 @@ static int svm_set_msr(struct kvm_vcpu *
 	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);
 	}


Patches currently in stable-queue which might be from pbonzini@redhat.com are

queue-4.2/kvm-fix-double-free-for-fast-mmio-eventfd.patch
queue-4.2/kvm-fix-zero-length-mmio-searching.patch
queue-4.2/revert-kvm-x86-apply-guest-mtrr-virtualization-on-host-reserved-pages.patch
queue-4.2/kvm-vmx-fix-vpid-is-0000h-in-non-root-operation.patch
queue-4.2/revert-kvm-svm-use-npt-page-attributes.patch
queue-4.2/revert-kvm-svm-sync-g_pat-with-guest-written-pat-value.patch
queue-4.2/kvm-factor-out-core-eventfd-assign-deassign-logic.patch
queue-4.2/kvm-x86-trap-amd-msrs-for-the-tseg-base-and-mask.patch
queue-4.2/kvm-svm-reset-mmu-on-vcpu-reset.patch
queue-4.2/kvm-don-t-try-to-register-to-kvm_fast_mmio_bus-for-non-mmio-eventfd.patch