From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 5 Jun 2014 15:29:34 +0000 (+0200)
Subject: KVM: emulate: POP SS triggers a MOV SS shadow too
X-Git-Tag: v3.17-rc1~141^2~83
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=a5457e7bcf9a76ec5c2de5d311d9b0d3b724edc6;p=linux.git

KVM: emulate: POP SS triggers a MOV SS shadow too

We did not do that when interruptibility was added to the emulator,
because at the time pop to segment was not implemented.  Now it is,
add it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 9b5d97db7631..bc670675223d 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1762,6 +1762,9 @@ static int em_pop_sreg(struct x86_emulate_ctxt *ctxt)
 	if (rc != X86EMUL_CONTINUE)
 		return rc;
 
+	if (ctxt->modrm_reg == VCPU_SREG_SS)
+		ctxt->interruptibility = KVM_X86_SHADOW_INT_MOV_SS;
+
 	rc = load_segment_descriptor(ctxt, (u16)selector, seg);
 	return rc;
 }