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Date: Mon, 17 Sep 2007 10:32:21 +0200 From: Avi Kivity <avi@...ranet.com> To: kvm-devel@...ts.sourceforge.net Cc: linux-kernel@...r.kernel.org, Nitin A Kamble <nitin.a.kamble@...el.com> Subject: [PATCH 099/104] KVM: X86 emulator: jump conditional short From: Nitin A Kamble <nitin.a.kamble@...el.com> Implement emulation of more jump conditional instructions jcc shortrel opcodes: 0x70 - 0x7f Signed-off-by: Nitin A Kamble <nitin.a.kamble@...el.com> Signed-off-by: Avi Kivity <avi@...ranet.com> --- drivers/kvm/x86_emulate.c | 15 +++++++++++++-- 1 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index ba53e59..57f1a5a 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -111,8 +111,12 @@ static u8 opcode_table[256] = { 0, 0, ImplicitOps|Mov, 0, SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb, insw/insd */ SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb, outsw/outsd */ - /* 0x70 - 0x7F */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + /* 0x70 - 0x77 */ + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + /* 0x78 - 0x7F */ + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, + ImplicitOps, ImplicitOps, ImplicitOps, ImplicitOps, /* 0x80 - 0x87 */ ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImm | ModRM, ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM, @@ -1268,6 +1272,13 @@ special_insn: ) == 0) return -1; return 0; + case 0x70 ... 0x7f: /* jcc (short) */ { + int rel = insn_fetch(s8, 1, _eip); + + if (test_cc(b, _eflags)) + JMP_REL(rel); + break; + } case 0x9c: /* pushf */ src.val = (unsigned long) _eflags; goto push; -- 1.5.3 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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