When early consistency checks are enabled, all VMFail conditions
should be caught by nested_vmx_check_vmentry_hw().
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/vmx.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 311cd32ab584..6d0040b175e6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -13352,14 +13352,6 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
/* trying to cancel vmlaunch/vmresume is a bug */
WARN_ON_ONCE(vmx->nested.nested_run_pending);
- /*
- * The only expected VM-instruction error is "VM entry with
- * invalid control field(s)." Anything else indicates a
- * problem with L0.
- */
- WARN_ON_ONCE(vmx->fail && (vmcs_read32(VM_INSTRUCTION_ERROR) !=
- VMXERR_ENTRY_INVALID_CONTROL_FIELD));
-
leave_guest_mode(vcpu);
if (vmcs12->cpu_based_vm_exec_control & CPU_BASED_USE_TSC_OFFSETING)
@@ -13386,6 +13378,16 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
if (nested_vmx_store_msr(vcpu, vmcs12->vm_exit_msr_store_addr,
vmcs12->vm_exit_msr_store_count))
nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
+ } else {
+ /*
+ * The only expected VM-instruction error is "VM entry with
+ * invalid control field(s)." Anything else indicates a
+ * problem with L0. And we should never get here with a
+ * VMFail of any type if early consistency checks are enabled.
+ */
+ WARN_ON_ONCE(vmcs_read32(VM_INSTRUCTION_ERROR) !=
+ VMXERR_ENTRY_INVALID_CONTROL_FIELD);
+ WARN_ON_ONCE(early_consistency_checks);
}
vmx_switch_vmcs(vcpu, &vmx->vmcs01);
--
2.18.0
