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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-10-01 19:16:58 -0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-10-04 13:57:24 +0200 |
| commit | eb5109e311b5152c0614a28d7d615d087f268f19 (patch) | |
| tree | 7e6cff230fb9ba1c0af815f1cdbb08cdf818389d | |
| parent | b2d83cfa3fdefe5c6573d443d099a18dc3a93c5f (diff) | |
| download | linux-eb5109e311b5152c0614a28d7d615d087f268f19.tar.bz2 | |
KVM: VMX: flush TLB with INVEPT on cpu migration
It is possible that stale EPTP-tagged mappings are used, if a
vcpu migrates to a different pcpu.
Set KVM_REQ_TLB_FLUSH in vmx_vcpu_load, when switching pcpus, which
will invalidate both VPID and EPT mappings on the next vm-entry.
Cc: stable@kernel.org
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f3812014bd0b..ed53b42caba1 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -709,7 +709,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu) if (vcpu->cpu != cpu) { vcpu_clear(vmx); kvm_migrate_timers(vcpu); - vpid_sync_vcpu_all(vmx); + set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests); local_irq_disable(); list_add(&vmx->local_vcpus_link, &per_cpu(vcpus_on_cpu, cpu)); |