KVM: nVMX: Update guest activity state field on L2 exits

Set guest activity state in L1's VMCS according to the VCPUs mp_state.
This ensures we report the correct state in case we L2 executed HLT or
if we put L2 into HLT state and it was now woken up by an event.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index f9a54331c808..407b05c29d7b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8219,6 +8219,10 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
                 vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
         vmcs12->guest_pending_dbg_exceptions =
                 vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS);
+        if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED)
+                vmcs12->guest_activity_state = GUEST_ACTIVITY_HLT;
+        else
+                vmcs12->guest_activity_state = GUEST_ACTIVITY_ACTIVE;
 
         if ((vmcs12->pin_based_vm_exec_control & PIN_BASED_VMX_PREEMPTION_TIMER) &&
             (vmcs12->vm_exit_controls & VM_EXIT_SAVE_VMX_PREEMPTION_TIMER))