linux-kernel - [PATCH 31/39] KVM: x86 emulator: Add mov r, imm instructions (opcodes 0xb0-0xbf)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 25 Sep 2008 14:55:03 +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 31/39] KVM: x86 emulator: Add mov r, imm instructions (opcodes 0xb0-0xbf)

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

The emulator only supported one instance of mov r, imm instruction
(opcode 0xb8), this adds the rest of these instructions.

Signed-off-by: Mohammed Gamal <m.gamal005@...il.com>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 arch/x86/kvm/x86_emulate.c |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c
index ae30435..66e0bd6 100644
--- a/arch/x86/kvm/x86_emulate.c
+++ b/arch/x86/kvm/x86_emulate.c
@@ -154,9 +154,16 @@ static u16 opcode_table[256] = {
 	0, 0, ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
 	ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
 	ByteOp | ImplicitOps | String, ImplicitOps | String,
-	/* 0xB0 - 0xBF */
-	0, 0, 0, 0, 0, 0, 0, 0,
-	DstReg | SrcImm | Mov, 0, 0, 0, 0, 0, 0, 0,
+	/* 0xB0 - 0xB7 */
+	ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
+	ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
+	ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
+	ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
+	/* 0xB8 - 0xBF */
+	DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
+	DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
+	DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
+	DstReg | SrcImm | Mov, DstReg | SrcImm | Mov,
 	/* 0xC0 - 0xC7 */
 	ByteOp | DstMem | SrcImm | ModRM, DstMem | SrcImmByte | ModRM,
 	0, ImplicitOps | Stack, 0, 0,
@@ -1660,7 +1667,7 @@ special_insn:
 	case 0xae ... 0xaf:	/* scas */
 		DPRINTF("Urk! I don't handle SCAS.\n");
 		goto cannot_emulate;
-	case 0xb8: /* mov r, imm */
+	case 0xb0 ... 0xbf: /* mov r, imm */
 		goto mov;
 	case 0xc0 ... 0xc1:
 		emulate_grp2(ctxt);
-- 
1.6.0.1

--
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/