From 7d316911632acb8ba8cb7c1dd318ba723c9f1d50 Mon Sep 17 00:00:00 2001 From: Nitin A Kamble Date: Tue, 28 Aug 2007 17:58:52 -0700 Subject: [PATCH] KVM: x86 emulator: push imm8 Implement the instruction push imm8 opcode: 0x6a Signed-off-by: Nitin A Kamble Signed-off-by: Avi Kivity --- drivers/kvm/x86_emulate.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 86171ca794..4fc2da6aae 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -104,10 +104,11 @@ static u8 opcode_table[256] = { /* 0x58 - 0x5F */ ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, - /* 0x60 - 0x6B */ + /* 0x60 - 0x67 */ 0, 0, 0, DstReg | SrcMem32 | ModRM | Mov /* movsxd (x86/64) */ , - 0, 0, 0, 0, 0, 0, 0, 0, - /* 0x6C - 0x6F */ + 0, 0, 0, 0, + /* 0x68 - 0x6F */ + 0, 0, ImplicitOps|Mov, 0, SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb, insw/insd */ SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb, outsw/outsd */ /* 0x70 - 0x7F */ @@ -919,6 +920,16 @@ done_prefixes: goto cannot_emulate; dst.val = (s32) src.val; break; + case 0x6a: /* push imm8 */ + src.val = 0L; + src.val = insn_fetch(s8, 1, _eip); +push: + dst.type = OP_MEM; + dst.bytes = op_bytes; + dst.val = src.val; + register_address_increment(_regs[VCPU_REGS_RSP], -op_bytes); + dst.ptr = register_address(ctxt->ss_base, _regs[VCPU_REGS_RSP]); + break; case 0x80 ... 0x83: /* Grp1 */ switch (modrm_reg) { case 0: -- 2.39.5