summaryrefslogtreecommitdiff
path: root/arch/x86/kvm/emulate.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-18 06:20:30 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-18 06:20:30 +0400
commit62d228b8c676232eca579f91cc0782b060a59097 (patch)
tree18acffcd94343a510dee6a8c14d7db2449359d86 /arch/x86/kvm/emulate.c
parent84fca9f38c5d646e95cdeef70e41cf15db549b95 (diff)
parent0be9c7a89f75072e091cd079d76194aec8d1fb09 (diff)
downloadlinux-62d228b8c676232eca579f91cc0782b060a59097.tar.xz
Merge branch 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Gleb Natapov. * 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: set "blocked by NMI" flag if EPT violation happens during IRET from NMI kvm: free resources after canceling async_pf KVM: nEPT: reset PDPTR register cache on nested vmentry emulation KVM: mmu: allow page tables to be in read-only slots KVM: x86 emulator: emulate RETF imm
Diffstat (limited to 'arch/x86/kvm/emulate.c')
-rw-r--r--arch/x86/kvm/emulate.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 2bc1e81045b0..ddc3f3d2afdb 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2025,6 +2025,17 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
return rc;
}
+static int em_ret_far_imm(struct x86_emulate_ctxt *ctxt)
+{
+ int rc;
+
+ rc = em_ret_far(ctxt);
+ if (rc != X86EMUL_CONTINUE)
+ return rc;
+ rsp_increment(ctxt, ctxt->src.val);
+ return X86EMUL_CONTINUE;
+}
+
static int em_cmpxchg(struct x86_emulate_ctxt *ctxt)
{
/* Save real source value, then compare EAX against destination. */
@@ -3763,7 +3774,8 @@ static const struct opcode opcode_table[256] = {
G(ByteOp, group11), G(0, group11),
/* 0xC8 - 0xCF */
I(Stack | SrcImmU16 | Src2ImmByte, em_enter), I(Stack, em_leave),
- N, I(ImplicitOps | Stack, em_ret_far),
+ I(ImplicitOps | Stack | SrcImmU16, em_ret_far_imm),
+ I(ImplicitOps | Stack, em_ret_far),
D(ImplicitOps), DI(SrcImmByte, intn),
D(ImplicitOps | No64), II(ImplicitOps, em_iret, iret),
/* 0xD0 - 0xD7 */