diff options
| author | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-25 18:16:18 +0000 |
|---|---|---|
| committer | balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-25 18:16:18 +0000 |
| commit | 2436b61a6b386d712a1813b036921443bd1c5c39 (patch) | |
| tree | 9a4250e083f45b100f741e007f8f02301cbdbcdc /target-i386/translate.c | |
| parent | e737b32a3688d415c3b1f9d0a3fb2b941b1e758c (diff) | |
| download | qemu-2436b61a6b386d712a1813b036921443bd1c5c39.tar.gz | |
SYSENTER/SYSEXIT IA-32e implementation (Alexander Graf).
On Intel CPUs, sysenter and sysexit are valid in 64-bit mode. This patch
makes both 64-bit aware and enables them for Intel CPUs.
Add cpu save/load for 64-bit wide sysenter variables.
Signed-off-by: Alexander Graf <agraf@suse.de>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5318 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386/translate.c')
| -rw-r--r-- | target-i386/translate.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index c739d690ad..cd9cae23f5 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -6505,7 +6505,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) tcg_gen_helper_0_0(helper_rdpmc); break; case 0x134: /* sysenter */ - if (CODE64(s)) + /* For Intel SYSENTER is valid on 64-bit */ + if (CODE64(s) && cpu_single_env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) goto illegal_op; if (!s->pe) { gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); @@ -6520,7 +6521,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) } break; case 0x135: /* sysexit */ - if (CODE64(s)) + /* For Intel SYSEXIT is valid on 64-bit */ + if (CODE64(s) && cpu_single_env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1) goto illegal_op; if (!s->pe) { gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base); @@ -6530,7 +6532,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start) s->cc_op = CC_OP_DYNAMIC; } gen_jmp_im(pc_start - s->cs_base); - tcg_gen_helper_0_0(helper_sysexit); + tcg_gen_helper_0_1(helper_sysexit, tcg_const_i32(dflag)); gen_eob(s); } break; |