Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 43/50] KVM: x86 emulator: handle undecoded rex.b with r/m = 5 in certain cases | Date | Thu, 26 Jun 2008 15:28:25 +0300 |
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x86_64 does not decode rex.b in certain cases, where the r/m field = 5.
Signed-off-by: Avi Kivity <avi@qumranet.com> --- arch/x86/kvm/x86_emulate.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c index 2808291..3721cfd 100644 --- a/arch/x86/kvm/x86_emulate.c +++ b/arch/x86/kvm/x86_emulate.c @@ -750,6 +750,7 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt, switch (base_reg) { case 5: + case 13: if (c->modrm_mod != 0) c->modrm_ea += c->regs[base_reg]; else @@ -767,6 +768,7 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt, } break; case 5: + case 13: if (c->modrm_mod != 0) c->modrm_ea += c->regs[c->modrm_rm]; else if (ctxt->mode == X86EMUL_MODE_PROT64) -- 1.5.6
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