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authorGravatar Vitaly Kuznetsov <vkuznets@redhat.com> 2021-09-30 01:51:54 +0800
committerGravatar Paolo Bonzini <pbonzini@redhat.com> 2021-09-30 04:27:02 -0400
commitfeb3162f9debbbeee5b00ad5a4e776f826dd9161 (patch)
treec09ce06c684d580a77ba854ef1cd1e3675037454
parentKVM: nVMX: Use INVALID_GPA for pointers used in nVMX. (diff)
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KVM: nVMX: Reset vmxon_ptr upon VMXOFF emulation.
Currently, 'vmx->nested.vmxon_ptr' is not reset upon VMXOFF emulation. This is not a problem per se as we never access it when !vmx->nested.vmxon. But this should be done to avoid any issue in the future. Also, initialize the vmxon_ptr when vcpu is created. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Yu Zhang <yu.c.zhang@linux.intel.com> Message-Id: <20210929175154.11396-3-yu.c.zhang@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--arch/x86/kvm/vmx/nested.c1
-rw-r--r--arch/x86/kvm/vmx/vmx.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 371b1dee17c1..af1bbb73430a 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -290,6 +290,7 @@ static void free_nested(struct kvm_vcpu *vcpu)
vmx->nested.vmxon = false;
vmx->nested.smm.vmxon = false;
+ vmx->nested.vmxon_ptr = INVALID_GPA;
free_vpid(vmx->nested.vpid02);
vmx->nested.posted_intr_nv = -1;
vmx->nested.current_vmptr = INVALID_GPA;
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 4d1514f6f36c..6323ed6a0746 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6902,6 +6902,7 @@ static int vmx_create_vcpu(struct kvm_vcpu *vcpu)
vcpu_setup_sgx_lepubkeyhash(vcpu);
vmx->nested.posted_intr_nv = -1;
+ vmx->nested.vmxon_ptr = INVALID_GPA;
vmx->nested.current_vmptr = INVALID_GPA;
vmx->nested.hv_evmcs_vmptr = EVMPTR_INVALID;