From: Takuya Yoshikawa <yoshikawa.takuya@xxxxxxxxxxxxx> Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@xxxxxxxxxxxxx> --- arch/x86/kvm/emulate.c | 38 +++++++++++++++++++++----------------- 1 files changed, 21 insertions(+), 17 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 2bf3415..e0c83a7 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2844,6 +2844,25 @@ static int em_jcxz(struct x86_emulate_ctxt *ctxt) return X86EMUL_CONTINUE; } +static int em_cli(struct x86_emulate_ctxt *ctxt) +{ + if (emulator_bad_iopl(ctxt)) + return emulate_gp(ctxt, 0); + + ctxt->eflags &= ~X86_EFLAGS_IF; + return X86EMUL_CONTINUE; +} + +static int em_sti(struct x86_emulate_ctxt *ctxt) +{ + if (emulator_bad_iopl(ctxt)) + return emulate_gp(ctxt, 0); + + ctxt->interruptibility = KVM_X86_SHADOW_INT_STI; + ctxt->eflags |= X86_EFLAGS_IF; + return X86EMUL_CONTINUE; +} + static bool valid_cr(int nr) { switch (nr) { @@ -3274,7 +3293,8 @@ static struct opcode opcode_table[256] = { DI(ImplicitOps | Priv, hlt), D(ImplicitOps), G(ByteOp, group3), G(0, group3), /* 0xF8 - 0xFF */ - D(ImplicitOps), D(ImplicitOps), D(ImplicitOps), D(ImplicitOps), + D(ImplicitOps), D(ImplicitOps), + I(ImplicitOps, em_cli), I(ImplicitOps, em_sti), D(ImplicitOps), D(ImplicitOps), G(0, group4), G(0, group5), }; @@ -4035,22 +4055,6 @@ special_insn: case 0xf9: /* stc */ ctxt->eflags |= EFLG_CF; break; - case 0xfa: /* cli */ - if (emulator_bad_iopl(ctxt)) { - rc = emulate_gp(ctxt, 0); - goto done; - } else - ctxt->eflags &= ~X86_EFLAGS_IF; - break; - case 0xfb: /* sti */ - if (emulator_bad_iopl(ctxt)) { - rc = emulate_gp(ctxt, 0); - goto done; - } else { - ctxt->interruptibility = KVM_X86_SHADOW_INT_STI; - ctxt->eflags |= X86_EFLAGS_IF; - } - break; case 0xfc: /* cld */ ctxt->eflags &= ~EFLG_DF; break; -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html