Il 02/06/2013 20:12, Gleb Natapov ha scritto: > On Thu, May 30, 2013 at 04:35:55PM +0200, Paolo Bonzini wrote: >> The x86-64 extended low-byte registers were fetched correctly from reg, >> but not from mod/rm. >> >> This fixes another bug in the boot of RHEL5.9 64-bit, but it is still >> not enough. >> > Did I missed unit test patch? :)
I wanted to ask the GSoC student to do it. If it doesn't come in a couple of weeks, I'll send it. Paolo >> Cc: [email protected] >> Cc: [email protected] >> Cc: <[email protected]> # 3.9 >> Signed-off-by: Paolo Bonzini <[email protected]> >> --- >> arch/x86/kvm/emulate.c | 5 ++++- >> 1 file changed, 4 insertions(+), 1 deletion(-) >> >> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c >> index aa68106..028b34f 100644 >> --- a/arch/x86/kvm/emulate.c >> +++ b/arch/x86/kvm/emulate.c >> @@ -1239,9 +1239,12 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt, >> ctxt->modrm_seg = VCPU_SREG_DS; >> >> if (ctxt->modrm_mod == 3) { >> + int highbyte_regs = ctxt->rex_prefix == 0; >> + >> op->type = OP_REG; >> op->bytes = (ctxt->d & ByteOp) ? 1 : ctxt->op_bytes; >> - op->addr.reg = decode_register(ctxt, ctxt->modrm_rm, ctxt->d & >> ByteOp); >> + op->addr.reg = decode_register(ctxt, ctxt->modrm_rm, >> + highbyte_regs && (ctxt->d & >> ByteOp)); >> if (ctxt->d & Sse) { >> op->type = OP_XMM; >> op->bytes = 16; >> -- >> 1.8.1.4 > > -- > Gleb. > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
