x86: Correct translation of some rdgsbase and wrgsbase encodings

It looks like there was a transcription error when writing this code
initially.  The code previously only decoded src or dst of rax.  This
resolves
https://bugs.launchpad.net/qemu/+bug/1719984.

Signed-off-by: Todd Eisenberger <teisenbe@google.com>
Message-Id: <CAP26EVRNVb=Mq=O3s51w7fDhGVmf-e3XFFA73MRzc5b4qKBA4g@mail.gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

diff --git a/target/i386/translate.c b/target/i386/translate.c
index a8986f4..7b92011 100644 (file)
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -8155,9 +8155,9 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
             break;
 
         case 0xc0 ... 0xc7: /* rdfsbase (f3 0f ae /0) */
-        case 0xc8 ... 0xc8: /* rdgsbase (f3 0f ae /1) */
+        case 0xc8 ... 0xcf: /* rdgsbase (f3 0f ae /1) */
         case 0xd0 ... 0xd7: /* wrfsbase (f3 0f ae /2) */
-        case 0xd8 ... 0xd8: /* wrgsbase (f3 0f ae /3) */
+        case 0xd8 ... 0xdf: /* wrgsbase (f3 0f ae /3) */
             if (CODE64(s)
                 && (prefixes & PREFIX_REPZ)
                 && !(prefixes & PREFIX_LOCK)