From 0fd14b72ac91516a0415f626d632ffa86f1e1a05 Mon Sep 17 00:00:00 2001 From: bellard Date: Sat, 4 Feb 2006 17:40:20 +0000 Subject: [PATCH] fxsave/fxrstor fix git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1738 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-i386/translate.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/target-i386/translate.c b/target-i386/translate.c index dab0378..0db0d4a 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -5803,14 +5803,24 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) op = (modrm >> 3) & 7; switch(op) { case 0: /* fxsave */ - if (mod == 3 || !(s->cpuid_features & CPUID_FXSR)) + if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) || + (s->flags & HF_EM_MASK)) goto illegal_op; + if (s->flags & HF_TS_MASK) { + gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + break; + } gen_lea_modrm(s, modrm, ®_addr, &offset_addr); gen_op_fxsave_A0((s->dflag == 2)); break; case 1: /* fxrstor */ - if (mod == 3 || !(s->cpuid_features & CPUID_FXSR)) + if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) || + (s->flags & HF_EM_MASK)) goto illegal_op; + if (s->flags & HF_TS_MASK) { + gen_exception(s, EXCP07_PREX, pc_start - s->cs_base); + break; + } gen_lea_modrm(s, modrm, ®_addr, &offset_addr); gen_op_fxrstor_A0((s->dflag == 2)); break; -- 2.7.4