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[Stable-9.1.2 05/58] target/i386: Use only 16 and 32-bit operands for IN


From: Michael Tokarev
Subject: [Stable-9.1.2 05/58] target/i386: Use only 16 and 32-bit operands for IN/OUT
Date: Sat, 9 Nov 2024 15:08:06 +0300

From: Richard Henderson <richard.henderson@linaro.org>

The REX.W prefix is ignored for these instructions.
Mirror the solution already used for INS/OUTS: X86_SIZE_z.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2581
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-stable@nongnu.org
Link: 
https://lore.kernel.org/r/20241015004144.2111817-1-richard.henderson@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 15d955975bd484c2c66af0d6daaa02a7d04d2256)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 30be9237c3..429ed87bb6 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1627,9 +1627,9 @@ static const X86OpEntry opcodes_root[256] = {
     [0xE2] = X86_OP_ENTRYr(LOOP,   J,b), /* implicit: CX with aflag size */
     [0xE3] = X86_OP_ENTRYr(JCXZ,   J,b), /* implicit: CX with aflag size */
     [0xE4] = X86_OP_ENTRYwr(IN,    0,b, I_unsigned,b), /* AL */
-    [0xE5] = X86_OP_ENTRYwr(IN,    0,v, I_unsigned,b), /* AX/EAX */
+    [0xE5] = X86_OP_ENTRYwr(IN,    0,z, I_unsigned,b), /* AX/EAX */
     [0xE6] = X86_OP_ENTRYrr(OUT,   0,b, I_unsigned,b), /* AL */
-    [0xE7] = X86_OP_ENTRYrr(OUT,   0,v, I_unsigned,b), /* AX/EAX */
+    [0xE7] = X86_OP_ENTRYrr(OUT,   0,z, I_unsigned,b), /* AX/EAX */
 
     [0xF1] = X86_OP_ENTRY0(INT1,   svm(ICEBP)),
     [0xF4] = X86_OP_ENTRY0(HLT,    chk(cpl0) svm(HLT)),
@@ -1761,9 +1761,9 @@ static const X86OpEntry opcodes_root[256] = {
     [0xEA] = X86_OP_ENTRYrr(JMPF,  I_unsigned,p, I_unsigned,w, chk(i64)),
     [0xEB] = X86_OP_ENTRYr(JMP,    J,b),
     [0xEC] = X86_OP_ENTRYwr(IN,    0,b, 2,w), /* AL, DX */
-    [0xED] = X86_OP_ENTRYwr(IN,    0,v, 2,w), /* AX/EAX, DX */
+    [0xED] = X86_OP_ENTRYwr(IN,    0,z, 2,w), /* AX/EAX, DX */
     [0xEE] = X86_OP_ENTRYrr(OUT,   0,b, 2,w), /* DX, AL */
-    [0xEF] = X86_OP_ENTRYrr(OUT,   0,v, 2,w), /* DX, AX/EAX */
+    [0xEF] = X86_OP_ENTRYrr(OUT,   0,z, 2,w), /* DX, AX/EAX */
 
     [0xF8] = X86_OP_ENTRY0(CLC),
     [0xF9] = X86_OP_ENTRY0(STC),
-- 
2.39.5




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