diff options
| author | Avi Kivity <avi@redhat.com> | 2010-10-11 14:23:39 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-02 12:05:15 +0200 |
| commit | 010c520e20413dfd567d568aba2b7238acd37e33 (patch) | |
| tree | 35ec0e11d22e09ee106835788bd68f47475edbab | |
| parent | d0dfc6b74a0c6e9ee46b62713256e2b025244d3c (diff) | |
| download | lwn-010c520e20413dfd567d568aba2b7238acd37e33.tar.gz lwn-010c520e20413dfd567d568aba2b7238acd37e33.zip | |
KVM: Don't reset mmu context unnecessarily when updating EFER
The only bit of EFER that affects the mmu is NX, and this is already
accounted for (LME only takes effect when changing cr0).
Based on a patch by Hillf Danton.
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b989e1f1e5d3..c05d47701292 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -830,7 +830,6 @@ static int set_efer(struct kvm_vcpu *vcpu, u64 efer) kvm_x86_ops->set_efer(vcpu, efer); vcpu->arch.mmu.base_role.nxe = (efer & EFER_NX) && !tdp_enabled; - kvm_mmu_reset_context(vcpu); /* Update reserved bits */ if ((efer ^ old_efer) & EFER_NX) |