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authorMarcelo Tosatti <mtosatti@redhat.com>2009-10-01 19:16:58 -0300
committerGreg Kroah-Hartman <gregkh@suse.de>2009-10-12 12:40:17 -0700
commitca9405b882ae10710c158d989f0c740242af2e28 (patch)
treeb196d22eb1941648f1f413b3e827526a9293249e /arch
parent779632b438a79ab1ed1f0da390712b12db3b2a58 (diff)
KVM: VMX: flush TLB with INVEPT on cpu migration
commit eb5109e311b5152c0614a28d7d615d087f268f19 upstream. 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. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/vmx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a768ff7889c..ff72e4d85696 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -661,7 +661,7 @@ 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));