[PATCH 5/7] KVM: x86: popf emulation should not change RF

[Nadav Amit]

RFLAGS.RF is always zero after popf. Therefore, popf should not updated RF, as
anyhow emulating popf, just as any other instruction should clear RFLAGS.RF.

Signed-off-by: Nadav Amit <namit@xxxxxxxxxxxxxxxxx>
---
 arch/x86/kvm/emulate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index dd07410..cf117bf 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1675,7 +1675,7 @@ static int emulate_popf(struct x86_emulate_ctxt *ctxt,
 		return rc;
 
 	change_mask = EFLG_CF | EFLG_PF | EFLG_AF | EFLG_ZF | EFLG_SF | EFLG_OF
-		| EFLG_TF | EFLG_DF | EFLG_NT | EFLG_RF | EFLG_AC | EFLG_ID;
+		| EFLG_TF | EFLG_DF | EFLG_NT | EFLG_AC | EFLG_ID;
 
 	switch(ctxt->mode) {
 	case X86EMUL_MODE_PROT64:
-- 
1.9.1

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