[PATCH 35/42] KVM: x86: disable paravirt mmu reporting

From: Avi Kivity
Date: Mon Nov 16 2009 - 07:23:55 EST


From: Marcelo Tosatti <mtosatti@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a06f88e..4693f91 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -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();
--
1.6.5.2

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