KVM: nVMX: Reset RFLAGS on VM-exit

Ouch, how could this work so well that far? We need to clear RFLAGS to
the reset value as specified by the SDM. Particularly, IF must be off
after VM-exit!

Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 097f5d6622758e0c6627a9a2416577d93a75f8f4..aacf6a458ae159394d1ca8209424327fa8e6b3fc 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7434,6 +7434,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
 
        kvm_register_write(vcpu, VCPU_REGS_RSP, vmcs12->host_rsp);
        kvm_register_write(vcpu, VCPU_REGS_RIP, vmcs12->host_rip);
+       vmx_set_rflags(vcpu, X86_EFLAGS_BIT1);
        /*
         * Note that calling vmx_set_cr0 is important, even if cr0 hasn't
         * actually changed, because it depends on the current state of