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KVM: x86 emulator: fix Src2CL decode

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Src2CL decode (used for double width shifts) erronously decodes only bit 3
of %rcx, instead of bits 7:0.

Fix by decoding %cl in its entirety.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity
2011-09-13 10:45:38 +03:00
parent 41bc3186b3
commit 9be3be1f15
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/emulate.c
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@@ -3603,7 +3603,7 @@ int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len)
break;
case Src2CL:
ctxt->src2.bytes = 1;
ctxt->src2.val = ctxt->regs[VCPU_REGS_RCX] & 0x8;
ctxt->src2.val = ctxt->regs[VCPU_REGS_RCX] & 0xff;
break;
case Src2ImmByte:
rc = decode_imm(ctxt, &ctxt->src2, 1, true);