KVM: x86 emulator: advance RIP outside x86 emulator code

Return new RIP as part of instruction emulation result instead of
updating KVM's RIP from x86 emulator code.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9e5a833f3392..8f45cc712dda 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3941,6 +3941,7 @@ restart:
 
         shadow_mask = vcpu->arch.emulate_ctxt.interruptibility;
         kvm_x86_ops->set_interrupt_shadow(vcpu, shadow_mask);
+        kvm_rip_write(vcpu, vcpu->arch.emulate_ctxt.eip);
 
         if (vcpu->arch.pio.count) {
                 if (!vcpu->arch.pio.in)
@@ -4945,6 +4946,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason,
         if (ret)
                 return EMULATE_FAIL;
 
+        kvm_rip_write(vcpu, vcpu->arch.emulate_ctxt.eip);
         kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
         return EMULATE_DONE;
 }