| Message ID | 1274258090-12247-2-git-send-email-sheng@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
On 05/19/2010 11:34 AM, Sheng Yang wrote: > Signed-off-by: Sheng Yang<sheng@linux.intel.com> > --- > target-i386/cpuid.c | 32 ++++++++++++++++++++++++++++++++ > Can send to Anthony directly, while tcg doesn't support xsave/ymm, all the code here is generic. > 1 files changed, 32 insertions(+), 0 deletions(-) > > diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c > index eebf038..21e94f3 100644 > --- a/target-i386/cpuid.c > +++ b/target-i386/cpuid.c > @@ -1067,6 +1067,38 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, > *ecx = 0; > *edx = 0; > break; > + case 0xD: > + /* Processor Extended State */ > + if (!(env->cpuid_ext_features& CPUID_EXT_XSAVE)) { > + *eax = 0; > + *ebx = 0; > + *ecx = 0; > + *edx = 0; > + break; > + } > + if (count == 0) { > + *eax = 0x7; > + *ebx = 0x340; > + *ecx = 0x340; > + *edx = 0; > + } else if (count == 1) { > + /* eax = 1, so we can continue with others */ > + *eax = 1; > + *ebx = 0; > + *ecx = 0; > + *edx = 0; > + } else if (count == 2) { > + *eax = 0x100; > + *ebx = 0x240; > + *ecx = 0; > + *edx = 0; > + } else { > + *eax = 0; > + *ebx = 0; > + *ecx = 0; > + *edx = 0; > + } > + break; > Lots of magic numbers. Symbolic constants or explanatory comments.
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index eebf038..21e94f3 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -1067,6 +1067,38 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, *ecx = 0; *edx = 0; break; + case 0xD: + /* Processor Extended State */ + if (!(env->cpuid_ext_features & CPUID_EXT_XSAVE)) { + *eax = 0; + *ebx = 0; + *ecx = 0; + *edx = 0; + break; + } + if (count == 0) { + *eax = 0x7; + *ebx = 0x340; + *ecx = 0x340; + *edx = 0; + } else if (count == 1) { + /* eax = 1, so we can continue with others */ + *eax = 1; + *ebx = 0; + *ecx = 0; + *edx = 0; + } else if (count == 2) { + *eax = 0x100; + *ebx = 0x240; + *ecx = 0; + *edx = 0; + } else { + *eax = 0; + *ebx = 0; + *ecx = 0; + *edx = 0; + } + break; case 0x80000000: *eax = env->cpuid_xlevel; *ebx = env->cpuid_vendor1;
Signed-off-by: Sheng Yang <sheng@linux.intel.com> --- target-i386/cpuid.c | 32 ++++++++++++++++++++++++++++++++ 1 files changed, 32 insertions(+), 0 deletions(-)