[kvm-devel] [PATCH] (big) real mode emulation - mov imm

[Nitin A Kamble]

Hi Avi,
   Attached is the patch to implement instruction:
        mov rl/rh/r, imm
        opcodes: 0xb0 - 0xbf

  Please apply,

-- 
Thanks & Regards,
Nitin
Open Source Technology Center, Intel Corporation
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commit 910f3167e57c224206a2ef5fe2cb248494724087
Author: Nitin A Kamble <[EMAIL PROTECTED]>
Date:   Thu Sep 13 20:18:51 2007 -0700

    Implement emulation of instruction
    	mov rl/rh/r imm
    	opcodes: 0xb0 - 0xbf
    
    Signed-off-by: Nitin A Kamble <[EMAIL PROTECTED]>

diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c
index 2d2801f..c2540c3 100644
--- a/drivers/kvm/x86_emulate.c
+++ b/drivers/kvm/x86_emulate.c
@@ -137,8 +137,12 @@ static u8 opcode_table[256] = {
 	0, 0, ByteOp | ImplicitOps | Mov, ImplicitOps | Mov,
 	ByteOp | ImplicitOps | Mov, ImplicitOps | Mov,
 	ByteOp | ImplicitOps, ImplicitOps,
-	/* 0xB0 - 0xBF */
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xB0 - 0xB7 */
+	Mov | SrcImmByte, Mov | SrcImmByte, Mov | SrcImmByte, Mov | SrcImmByte,
+	Mov | SrcImmByte, Mov | SrcImmByte, Mov | SrcImmByte, Mov | SrcImmByte,
+	/* 0xB8 - 0xBF */
+	Mov | SrcImm, Mov | SrcImm, Mov | SrcImm, Mov | SrcImm,
+	Mov | SrcImm, Mov | SrcImm, Mov | SrcImm, Mov | SrcImm,
 	/* 0xC0 - 0xC7 */
 	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
 	0, ImplicitOps, 0, 0,
@@ -1102,6 +1106,23 @@ push:
 		dst.val = (unsigned long)_regs[VCPU_REGS_RAX];
 		_eip += ad_bytes;	/* skip dst displacement */
 		break;
+	case 0xb0 ... 0xb3:	/* mov rl, imm8 */
+		dst.ptr = (unsigned long *)&_regs[VCPU_REGS_RAX + (b & 0x3)];
+		dst.val = src.val;
+		dst.type = OP_REG;
+		dst.bytes = 1;
+		break;
+	case 0xb4 ... 0xb7:	/* mov rh, imm8 */
+		dst.ptr = ((void *)&_regs[VCPU_REGS_RAX + (b & 0x3)] + 1);
+		dst.val = src.val;
+		dst.type = OP_REG;
+		dst.bytes = 1;
+		break;
+	case 0xb8 ... 0xbf:	/* mov r, imm */
+		dst.ptr = (unsigned long *)&_regs[VCPU_REGS_RAX + (b & 0x7)];
+		dst.val = src.val;
+		dst.type = OP_REG;
+		break;
 	case 0xc0 ... 0xc1:
 	      grp2:		/* Grp2 */
 		switch (modrm_reg) {

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