From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mohammed Gamal Subject: [PATCH] x86 emulator: Add 'push es' instruction (opcode 0x06) Date: Mon, 17 Aug 2009 22:16:14 +0300 Message-ID: <1250536574-8396-1-git-send-email-m.gamal005@gmail.com> Cc: kvm@vger.kernel.org, Mohammed Gamal To: avi@redhat.com Return-path: Received: from ey-out-2122.google.com ([74.125.78.25]:60730 "EHLO ey-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751937AbZHQTQS (ORCPT ); Mon, 17 Aug 2009 15:16:18 -0400 Received: by ey-out-2122.google.com with SMTP id 22so732393eye.37 for ; Mon, 17 Aug 2009 12:16:18 -0700 (PDT) Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Mohammed Gamal --- arch/x86/kvm/emulate.c | 16 +++++++++++++++- 1 files changed, 15 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 2eb807a..fc8a745 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -92,7 +92,7 @@ static u32 opcode_table[256] = { /* 0x00 - 0x07 */ ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM, ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM, - ByteOp | DstAcc | SrcImm, DstAcc | SrcImm, 0, 0, + ByteOp | DstAcc | SrcImm, DstAcc | SrcImm, ImplicitOps | Stack, 0, /* 0x08 - 0x0F */ ByteOp | DstMem | SrcReg | ModRM, DstMem | SrcReg | ModRM, ByteOp | DstReg | SrcMem | ModRM, DstReg | SrcMem | ModRM, @@ -1186,6 +1186,17 @@ static int emulate_pop(struct x86_emulate_ctxt *ctxt, return rc; } +static void emulate_push_sreg(struct x86_emulate_ctxt *ctxt, int seg) +{ + struct decode_cache *c = &ctxt->decode; + struct kvm_segment segment; + + kvm_x86_ops->get_segment(ctxt->vcpu, &segment, seg); + + c->src.val = segment.selector; + emulate_push(ctxt); +} + static inline int emulate_grp1a(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) { @@ -1707,6 +1718,9 @@ special_insn: add: /* add */ emulate_2op_SrcV("add", c->src, c->dst, ctxt->eflags); break; + case 0x06: /* push es */ + emulate_push_sreg(ctxt, VCPU_SREG_ES); + break; case 0x08 ... 0x0d: or: /* or */ emulate_2op_SrcV("or", c->src, c->dst, ctxt->eflags); -- 1.6.0.4