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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>
master
Todd Eisenberger 2017-09-28 10:17:06 -07:00 committed by Eduardo Habkost
parent c0dd109919
commit e0dd5fd41a
1 changed files with 2 additions and 2 deletions
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4
target/i386/translate.c
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@ -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)