From: Mohammed Gamal <m.gamal005@gmail.com>
Date: Tue, 11 May 2010 19:22:40 +0000 (+0300)
Subject: KVM: x86 emulator: Add test acc, imm instruction (opcodes 0xA8 - 0xA9)
X-Git-Tag: v2.6.36-rc1~580^2~153
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=dfb507c41d0d12fc69820abb7f040d31fcf015fe;p=linux.git

KVM: x86 emulator: Add test acc, imm instruction (opcodes 0xA8 - 0xA9)

This adds test acc, imm instruction to the x86 emulator

Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index b43ac98ef790..35dd57c5a7fd 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -181,7 +181,7 @@ static u32 opcode_table[256] = {
 	ByteOp | SrcSI | DstDI | Mov | String, SrcSI | DstDI | Mov | String,
 	ByteOp | SrcSI | DstDI | String, SrcSI | DstDI | String,
 	/* 0xA8 - 0xAF */
-	0, 0, ByteOp | DstDI | Mov | String, DstDI | Mov | String,
+	DstAcc | SrcImmByte | ByteOp, DstAcc | SrcImm, ByteOp | DstDI | Mov | String, DstDI | Mov | String,
 	ByteOp | SrcSI | DstAcc | Mov | String, SrcSI | DstAcc | Mov | String,
 	ByteOp | DstDI | String, DstDI | String,
 	/* 0xB0 - 0xB7 */
@@ -2754,6 +2754,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
 		}
 		break;
 	case 0x84 ... 0x85:
+	test:
 		emulate_2op_SrcV("test", c->src, c->dst, ctxt->eflags);
 		break;
 	case 0x86 ... 0x87:	/* xchg */
@@ -2852,6 +2853,8 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
 		c->dst.type = OP_NONE; /* Disable writeback. */
 		DPRINTF("cmps: mem1=0x%p mem2=0x%p\n", c->src.ptr, c->dst.ptr);
 		goto cmp;
+	case 0xa8 ... 0xa9:	/* test ax, imm */
+		goto test;
 	case 0xaa ... 0xab:	/* stos */
 		c->dst.val = c->regs[VCPU_REGS_RAX];
 		break;