KVM: x86: disable paravirt mmu reporting
authorMarcelo Tosatti <mtosatti@redhat.com>
Thu, 1 Oct 2009 22:28:39 +0000 (19:28 -0300)
committerAvi Kivity <avi@redhat.com>
Thu, 3 Dec 2009 07:32:14 +0000 (09:32 +0200)
Disable paravirt MMU capability reporting, so that new (or rebooted)
guests switch to native operation.

Paravirt MMU is a burden to maintain and does not bring significant
advantages compared to shadow anymore.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c

index a06f88e66c899bef5f4ede8758dd283013998fcd..4693f915f3bde30493cf08667933d35203512c17 100644 (file)
@@ -1238,8 +1238,8 @@ int kvm_dev_ioctl_check_extension(long ext)
        case KVM_CAP_NR_MEMSLOTS:
                r = KVM_MEMORY_SLOTS;
                break;
-       case KVM_CAP_PV_MMU:
-               r = !tdp_enabled;
+       case KVM_CAP_PV_MMU:    /* obsolete */
+               r = 0;
                break;
        case KVM_CAP_IOMMU:
                r = iommu_found();