diff options
| -rw-r--r-- | arch/x86/kvm/x86_emulate.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/arch/x86/kvm/x86_emulate.c b/arch/x86/kvm/x86_emulate.c index 3721cfddc973..ca7ab2469a4a 100644 --- a/arch/x86/kvm/x86_emulate.c +++ b/arch/x86/kvm/x86_emulate.c @@ -748,24 +748,12 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt, base_reg |= sib & 7; scale = sib >> 6; - switch (base_reg) { - case 5: - case 13: - if (c->modrm_mod != 0) - c->modrm_ea += c->regs[base_reg]; - else - c->modrm_ea += - insn_fetch(s32, 4, c->eip); - break; - default: + if ((base_reg & 7) == 5 && c->modrm_mod == 0) + c->modrm_ea += insn_fetch(s32, 4, c->eip); + else c->modrm_ea += c->regs[base_reg]; - } - switch (index_reg) { - case 4: - break; - default: + if (index_reg != 4) c->modrm_ea += c->regs[index_reg] << scale; - } break; case 5: case 13: |