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[v1.02][x86] Split feature detection into a separate function

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Dr-Noob
2022-10-20 20:48:22 +00:00
parent de24d86cd6
commit e91eef3e65
1 changed files with 49 additions and 37 deletions
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86
src/x86/cpuid.c
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@@ -274,51 +274,19 @@ struct hypervisor* get_hp_info(bool hv_present) {
return hv;
}
struct cpuInfo* get_cpu_info() {
struct cpuInfo* cpu = emalloc(sizeof(struct cpuInfo));
struct features* feat = emalloc(sizeof(struct features));
cpu->feat = feat;
cpu->peak_performance = -1;
cpu->topo = NULL;
cpu->cach = NULL;
bool *ptr = &(feat->AES);
for(uint32_t i = 0; i < sizeof(struct features)/sizeof(bool); i++, ptr++) {
*ptr = false;
}
struct features* get_features_info(struct cpuInfo* cpu) {
uint32_t eax = 0;
uint32_t ebx = 0;
uint32_t ecx = 0;
uint32_t edx = 0;
//Get max cpuid level
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxLevels = eax;
struct features* feat = emalloc(sizeof(struct features));
//Fill vendor
char name[13];
memset(name,0,13);
get_name_cpuid(name, ebx, edx, ecx);
if(strcmp(CPU_VENDOR_INTEL_STRING,name) == 0)
cpu->cpu_vendor = CPU_VENDOR_INTEL;
else if (strcmp(CPU_VENDOR_AMD_STRING,name) == 0)
cpu->cpu_vendor = CPU_VENDOR_AMD;
else {
cpu->cpu_vendor = CPU_VENDOR_INVALID;
printErr("Unknown CPU vendor: %s", name);
return NULL;
bool *ptr = &(feat->AES);
for(uint32_t i = 0; i < sizeof(struct features)/sizeof(bool); i++, ptr++) {
*ptr = false;
}
//Get max extended level
eax = 0x80000000;
ebx = 0;
ecx = 0;
edx = 0;
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxExtendedLevels = eax;
//Fill instructions support
if (cpu->maxLevels >= 0x00000001){
eax = 0x00000001;
@@ -373,6 +341,50 @@ struct cpuInfo* get_cpu_info() {
printWarn("Can't read features information from cpuid (needed extended level is 0x%.8X, max is 0x%.8X)", 0x80000001, cpu->maxExtendedLevels);
}
return feat;
}
struct cpuInfo* get_cpu_info() {
struct cpuInfo* cpu = emalloc(sizeof(struct cpuInfo));
cpu->peak_performance = -1;
cpu->topo = NULL;
cpu->cach = NULL;
cpu->feat = NULL;
uint32_t eax = 0;
uint32_t ebx = 0;
uint32_t ecx = 0;
uint32_t edx = 0;
//Get max cpuid level
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxLevels = eax;
//Fill vendor
char name[13];
memset(name,0,13);
get_name_cpuid(name, ebx, edx, ecx);
if(strcmp(CPU_VENDOR_INTEL_STRING,name) == 0)
cpu->cpu_vendor = CPU_VENDOR_INTEL;
else if (strcmp(CPU_VENDOR_AMD_STRING,name) == 0)
cpu->cpu_vendor = CPU_VENDOR_AMD;
else {
cpu->cpu_vendor = CPU_VENDOR_INVALID;
printErr("Unknown CPU vendor: %s", name);
return NULL;
}
//Get max extended level
eax = 0x80000000;
ebx = 0;
ecx = 0;
edx = 0;
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxExtendedLevels = eax;
cpu->feat = get_features_info(cpu);
if (cpu->maxExtendedLevels >= 0x80000004){
cpu->cpu_name = get_str_cpu_name_internal();
}