From: Nitin A Kamble <nitin.a.kamble@intel.com>
Date: Sat, 15 Sep 2007 07:41:26 +0000 (+0300)
Subject: KVM: x86 emulator: jmp abs
X-Git-Tag: v2.6.24-rc1~1365^2~4
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26a3e983d154beca544afd36f293cfef10657f24;p=linux-2.6

KVM: x86 emulator: jmp abs

Implement emulation of instruction:
    jump absolute r/m
    opcode: 0xff /4

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 4c78a4ff86..cf8db670df 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -1148,6 +1148,12 @@ push:
 		case 1:	/* dec */
 			emulate_1op("dec", dst, _eflags);
 			break;
+		case 4: /* jmp abs */
+			if (b == 0xff)
+				_eip = dst.val;
+			else
+				goto cannot_emulate;
+			break;
 		case 6:	/* push */
 			/* 64-bit mode: PUSH always pushes a 64-bit operand. */
 			if (mode == X86EMUL_MODE_PROT64) {