linux-kernel - [PATCH 07/25] KVM: x86 emulator: Add call near absolute instruction (opcode 0xff/2)

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Date:	Sun, 28 Sep 2008 18:44:43 +0300
From:	Avi Kivity <avi@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	kvm@...r.kernel.org, Mohammed Gamal <m.gamal005@...il.com>
Subject: [PATCH 07/25] KVM: x86 emulator: Add call near absolute instruction (opcode 0xff/2)

From: Mohammed Gamal <m.gamal005@...il.com>

Add call near absolute instruction.

Signed-off-by: Mohammed Gamal <m.gamal005@...il.com>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 arch/x86/kvm/x86_emulate.c |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index 3ac2f14..0630d21 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -286,7 +286,8 @@ static u16 group_table[] = {
 	ByteOp | DstMem | SrcNone | ModRM, ByteOp | DstMem | SrcNone | ModRM,
 	0, 0, 0, 0, 0, 0,
 	[Group5*8] =
-	DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM, 0, 0,
+	DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
+	SrcMem | ModRM | Stack, 0,
 	SrcMem | ModRM, 0, SrcMem | ModRM | Stack, 0,
 	[Group7*8] =
 	0, 0, ModRM | SrcMem, ModRM | SrcMem,
@@ -1162,6 +1163,14 @@ static inline int emulate_grp45(struct x86_emulate_ctxt *ctxt,
 	case 1:	/* dec */
 		emulate_1op("dec", c->dst, ctxt->eflags);
 		break;
+	case 2: /* call near abs */ {
+		long int old_eip;
+		old_eip = c->eip;
+		c->eip = c->src.val;
+		c->src.val = old_eip;
+		emulate_push(ctxt);
+		break;
+	}
 	case 4: /* jmp abs */
 		c->eip = c->src.val;
 		break;
-- 
1.6.0.1

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