xnu-1504.7.4.tar.gz

[apple/xnu.git] / osfmk / i386 / cpuid.c

diff --git a/osfmk/i386/cpuid.c b/osfmk/i386/cpuid.c
index 1ddb1469e0b645033961add91e439f5aa1c77af9..c974a71ede1f17f496ada4110744daaa02162d26 100644 (file)
--- a/osfmk/i386/cpuid.c
+++ b/osfmk/i386/cpuid.c
@@ -625,6 +625,11 @@ cpuid_set_cpufamily(i386_cpu_info_t *info_p)
                case CPUID_MODEL_NEHALEM_EX:
                        cpufamily = CPUFAMILY_INTEL_NEHALEM;
                        break;
+               case CPUID_MODEL_DALES_32NM:
+               case CPUID_MODEL_WESTMERE:
+               case CPUID_MODEL_WESTMERE_EX:
+                       cpufamily = CPUFAMILY_INTEL_WESTMERE;
+                       break;
                }
                break;
        }
@@ -659,6 +664,17 @@ cpuid_set_info(void)
         * (which determines whether SMT/Hyperthreading is active).
         */
        switch (info_p->cpuid_cpufamily) {
+       /*
+        * This should be the same as Nehalem but an A0 silicon bug returns
+        * invalid data in the top 12 bits. Hence, we use only bits [19..16]
+        * rather than [31..16] for core count - which actually can't exceed 8. 
+        */
+       case CPUFAMILY_INTEL_WESTMERE: {
+               uint64_t msr = rdmsr64(MSR_CORE_THREAD_COUNT);
+               info_p->core_count   = bitfield32((uint32_t)msr, 19, 16);
+               info_p->thread_count = bitfield32((uint32_t)msr, 15,  0);
+               break;
+               }
        case CPUFAMILY_INTEL_NEHALEM: {
                uint64_t msr = rdmsr64(MSR_CORE_THREAD_COUNT);
                info_p->core_count   = bitfield32((uint32_t)msr, 31, 16);
@@ -707,6 +723,7 @@ static struct {
        {CPUID_FEATURE_HTT,   "HTT",},
        {CPUID_FEATURE_TM,    "TM",},
        {CPUID_FEATURE_SSE3,    "SSE3"},
+       {CPUID_FEATURE_PCLMULQDQ, "PCLMULQDQ"},
        {CPUID_FEATURE_MONITOR, "MON"},
        {CPUID_FEATURE_DSCPL,   "DSCPL"},
        {CPUID_FEATURE_VMX,     "VMX"},
@@ -722,12 +739,14 @@ static struct {
        {CPUID_FEATURE_SSE4_2,  "SSE4.2"},
        {CPUID_FEATURE_xAPIC,   "xAPIC"},
        {CPUID_FEATURE_POPCNT,  "POPCNT"},
+       {CPUID_FEATURE_AES,     "AES"},
        {CPUID_FEATURE_VMM,     "VMM"},
        {0, 0}
 },
 extfeature_map[] = {
        {CPUID_EXTFEATURE_SYSCALL, "SYSCALL"},
        {CPUID_EXTFEATURE_XD,      "XD"},
+       {CPUID_EXTFEATURE_1GBPAGE, "1GBPAGE"},
        {CPUID_EXTFEATURE_RDTSCP,  "RDTSCP"},
        {CPUID_EXTFEATURE_EM64T,   "EM64T"},
        {CPUID_EXTFEATURE_LAHF,    "LAHF"},