diff options
author | Andre Przywara <andre.przywara@amd.com> | 2010-03-11 14:38:58 +0100 |
---|---|---|
committer | Aurelien Jarno <aurelien@aurel32.net> | 2010-03-13 16:50:54 +0100 |
commit | bdde476a9cefb2dce8111600e7d5fec1c42bf56c (patch) | |
tree | 37ccd7f1fb7a1c774251fd043d18418e8724a537 /target-i386 | |
parent | 4d067ed7a778c5b903b048b5f13b8fa3873d1211 (diff) |
x86/cpuid: moved host_cpuid function and remove prototype
the host_cpuid function was located at the end of the file and had
a prototype before it's first use. Move it up and remove the
prototype.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-i386')
-rw-r--r-- | target-i386/cpuid.c | 71 |
1 files changed, 34 insertions, 37 deletions
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index 9bba907598..eb8e9f08fe 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -92,8 +92,40 @@ typedef struct model_features_t { int check_cpuid = 0; int enforce_cpuid = 0; -static void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax, - uint32_t *ebx, uint32_t *ecx, uint32_t *edx); +static void host_cpuid(uint32_t function, uint32_t count, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx) +{ +#if defined(CONFIG_KVM) + uint32_t vec[4]; + +#ifdef __x86_64__ + asm volatile("cpuid" + : "=a"(vec[0]), "=b"(vec[1]), + "=c"(vec[2]), "=d"(vec[3]) + : "0"(function), "c"(count) : "cc"); +#else + asm volatile("pusha \n\t" + "cpuid \n\t" + "mov %%eax, 0(%2) \n\t" + "mov %%ebx, 4(%2) \n\t" + "mov %%ecx, 8(%2) \n\t" + "mov %%edx, 12(%2) \n\t" + "popa" + : : "a"(function), "c"(count), "S"(vec) + : "memory", "cc"); +#endif + + if (eax) + *eax = vec[0]; + if (ebx) + *ebx = vec[1]; + if (ecx) + *ecx = vec[2]; + if (edx) + *edx = vec[3]; +#endif +} #define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c))) @@ -896,41 +928,6 @@ void x86_cpudef_setup(void) #endif } -static void host_cpuid(uint32_t function, uint32_t count, - uint32_t *eax, uint32_t *ebx, - uint32_t *ecx, uint32_t *edx) -{ -#if defined(CONFIG_KVM) - uint32_t vec[4]; - -#ifdef __x86_64__ - asm volatile("cpuid" - : "=a"(vec[0]), "=b"(vec[1]), - "=c"(vec[2]), "=d"(vec[3]) - : "0"(function), "c"(count) : "cc"); -#else - asm volatile("pusha \n\t" - "cpuid \n\t" - "mov %%eax, 0(%2) \n\t" - "mov %%ebx, 4(%2) \n\t" - "mov %%ecx, 8(%2) \n\t" - "mov %%edx, 12(%2) \n\t" - "popa" - : : "a"(function), "c"(count), "S"(vec) - : "memory", "cc"); -#endif - - if (eax) - *eax = vec[0]; - if (ebx) - *ebx = vec[1]; - if (ecx) - *ecx = vec[2]; - if (edx) - *edx = vec[3]; -#endif -} - static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) { |