/*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* @OSF_COPYRIGHT@
*/
#include <platforms.h>
-#include <mach_kdb.h>
#include <vm/vm_page.h>
#include <pexpert/pexpert.h>
-#include "cpuid.h"
-#if MACH_KDB
-#include <i386/db_machdep.h>
-#include <ddb/db_aout.h>
-#include <ddb/db_access.h>
-#include <ddb/db_sym.h>
-#include <ddb/db_variables.h>
-#include <ddb/db_command.h>
-#include <ddb/db_output.h>
-#include <ddb/db_expr.h>
+#include <i386/cpuid.h>
+
+static boolean_t cpuid_dbg
+#if DEBUG
+ = TRUE;
+#else
+ = FALSE;
#endif
+#define DBG(x...) \
+ do { \
+ if (cpuid_dbg) \
+ kprintf(x); \
+ } while (0) \
#define min(a,b) ((a) < (b) ? (a) : (b))
#define quad(hi,lo) (((uint64_t)(hi)) << 32 | (lo))
-#define bit(n) (1UL << (n))
-#define bitmask(h,l) ((bit(h)|(bit(h)-1)) & ~(bit(l)-1))
-#define bitfield(x,h,l) (((x) & bitmask(h,l)) >> l)
+/* Only for 32bit values */
+#define bit32(n) (1U << (n))
+#define bitmask32(h,l) ((bit32(h)|(bit32(h)-1)) & ~(bit32(l)-1))
+#define bitfield32(x,h,l) ((((x) & bitmask32(h,l)) >> l))
+
+/*
+ * Leaf 2 cache descriptor encodings.
+ */
+typedef enum {
+ _NULL_, /* NULL (empty) descriptor */
+ CACHE, /* Cache */
+ TLB, /* TLB */
+ STLB, /* Shared second-level unified TLB */
+ PREFETCH /* Prefetch size */
+} cpuid_leaf2_desc_type_t;
+
+typedef enum {
+ NA, /* Not Applicable */
+ FULLY, /* Fully-associative */
+ TRACE, /* Trace Cache (P4 only) */
+ INST, /* Instruction TLB */
+ DATA, /* Data TLB */
+ DATA0, /* Data TLB, 1st level */
+ DATA1, /* Data TLB, 2nd level */
+ L1, /* L1 (unified) cache */
+ L1_INST, /* L1 Instruction cache */
+ L1_DATA, /* L1 Data cache */
+ L2, /* L2 (unified) cache */
+ L3, /* L3 (unified) cache */
+ L2_2LINESECTOR, /* L2 (unified) cache with 2 lines per sector */
+ L3_2LINESECTOR, /* L3(unified) cache with 2 lines per sector */
+ SMALL, /* Small page TLB */
+ LARGE, /* Large page TLB */
+ BOTH /* Small and Large page TLB */
+} cpuid_leaf2_qualifier_t;
+
+typedef struct cpuid_cache_descriptor {
+ uint8_t value; /* descriptor code */
+ uint8_t type; /* cpuid_leaf2_desc_type_t */
+ uint8_t level; /* level of cache/TLB hierachy */
+ uint8_t ways; /* wayness of cache */
+ uint16_t size; /* cachesize or TLB pagesize */
+ uint16_t entries; /* number of TLB entries or linesize */
+} cpuid_cache_descriptor_t;
+
+/*
+ * These multipliers are used to encode 1*K .. 64*M in a 16 bit size field
+ */
+#define K (1)
+#define M (1024)
+
+/*
+ * Intel cache descriptor table:
+ */
+static cpuid_cache_descriptor_t intel_cpuid_leaf2_descriptor_table[] = {
+// -------------------------------------------------------
+// value type level ways size entries
+// -------------------------------------------------------
+ { 0x00, _NULL_, NA, NA, NA, NA },
+ { 0x01, TLB, INST, 4, SMALL, 32 },
+ { 0x02, TLB, INST, FULLY, LARGE, 2 },
+ { 0x03, TLB, DATA, 4, SMALL, 64 },
+ { 0x04, TLB, DATA, 4, LARGE, 8 },
+ { 0x05, TLB, DATA1, 4, LARGE, 32 },
+ { 0x06, CACHE, L1_INST, 4, 8*K, 32 },
+ { 0x08, CACHE, L1_INST, 4, 16*K, 32 },
+ { 0x09, CACHE, L1_INST, 4, 32*K, 64 },
+ { 0x0A, CACHE, L1_DATA, 2, 8*K, 32 },
+ { 0x0B, TLB, INST, 4, LARGE, 4 },
+ { 0x0C, CACHE, L1_DATA, 4, 16*K, 32 },
+ { 0x0D, CACHE, L1_DATA, 4, 16*K, 64 },
+ { 0x0E, CACHE, L1_DATA, 6, 24*K, 64 },
+ { 0x21, CACHE, L2, 8, 256*K, 64 },
+ { 0x22, CACHE, L3_2LINESECTOR, 4, 512*K, 64 },
+ { 0x23, CACHE, L3_2LINESECTOR, 8, 1*M, 64 },
+ { 0x25, CACHE, L3_2LINESECTOR, 8, 2*M, 64 },
+ { 0x29, CACHE, L3_2LINESECTOR, 8, 4*M, 64 },
+ { 0x2C, CACHE, L1_DATA, 8, 32*K, 64 },
+ { 0x30, CACHE, L1_INST, 8, 32*K, 64 },
+ { 0x40, CACHE, L2, NA, 0, NA },
+ { 0x41, CACHE, L2, 4, 128*K, 32 },
+ { 0x42, CACHE, L2, 4, 256*K, 32 },
+ { 0x43, CACHE, L2, 4, 512*K, 32 },
+ { 0x44, CACHE, L2, 4, 1*M, 32 },
+ { 0x45, CACHE, L2, 4, 2*M, 32 },
+ { 0x46, CACHE, L3, 4, 4*M, 64 },
+ { 0x47, CACHE, L3, 8, 8*M, 64 },
+ { 0x48, CACHE, L2, 12, 3*M, 64 },
+ { 0x49, CACHE, L2, 16, 4*M, 64 },
+ { 0x4A, CACHE, L3, 12, 6*M, 64 },
+ { 0x4B, CACHE, L3, 16, 8*M, 64 },
+ { 0x4C, CACHE, L3, 12, 12*M, 64 },
+ { 0x4D, CACHE, L3, 16, 16*M, 64 },
+ { 0x4E, CACHE, L2, 24, 6*M, 64 },
+ { 0x4F, TLB, INST, NA, SMALL, 32 },
+ { 0x50, TLB, INST, NA, BOTH, 64 },
+ { 0x51, TLB, INST, NA, BOTH, 128 },
+ { 0x52, TLB, INST, NA, BOTH, 256 },
+ { 0x55, TLB, INST, FULLY, BOTH, 7 },
+ { 0x56, TLB, DATA0, 4, LARGE, 16 },
+ { 0x57, TLB, DATA0, 4, SMALL, 16 },
+ { 0x59, TLB, DATA0, FULLY, SMALL, 16 },
+ { 0x5A, TLB, DATA0, 4, LARGE, 32 },
+ { 0x5B, TLB, DATA, NA, BOTH, 64 },
+ { 0x5C, TLB, DATA, NA, BOTH, 128 },
+ { 0x5D, TLB, DATA, NA, BOTH, 256 },
+ { 0x60, CACHE, L1, 16*K, 8, 64 },
+ { 0x61, CACHE, L1, 4, 8*K, 64 },
+ { 0x62, CACHE, L1, 4, 16*K, 64 },
+ { 0x63, CACHE, L1, 4, 32*K, 64 },
+ { 0x70, CACHE, TRACE, 8, 12*K, NA },
+ { 0x71, CACHE, TRACE, 8, 16*K, NA },
+ { 0x72, CACHE, TRACE, 8, 32*K, NA },
+ { 0x76, TLB, INST, NA, BOTH, 8 },
+ { 0x78, CACHE, L2, 4, 1*M, 64 },
+ { 0x79, CACHE, L2_2LINESECTOR, 8, 128*K, 64 },
+ { 0x7A, CACHE, L2_2LINESECTOR, 8, 256*K, 64 },
+ { 0x7B, CACHE, L2_2LINESECTOR, 8, 512*K, 64 },
+ { 0x7C, CACHE, L2_2LINESECTOR, 8, 1*M, 64 },
+ { 0x7D, CACHE, L2, 8, 2*M, 64 },
+ { 0x7F, CACHE, L2, 2, 512*K, 64 },
+ { 0x80, CACHE, L2, 8, 512*K, 64 },
+ { 0x82, CACHE, L2, 8, 256*K, 32 },
+ { 0x83, CACHE, L2, 8, 512*K, 32 },
+ { 0x84, CACHE, L2, 8, 1*M, 32 },
+ { 0x85, CACHE, L2, 8, 2*M, 32 },
+ { 0x86, CACHE, L2, 4, 512*K, 64 },
+ { 0x87, CACHE, L2, 8, 1*M, 64 },
+ { 0xB0, TLB, INST, 4, SMALL, 128 },
+ { 0xB1, TLB, INST, 4, LARGE, 8 },
+ { 0xB2, TLB, INST, 4, SMALL, 64 },
+ { 0xB3, TLB, DATA, 4, SMALL, 128 },
+ { 0xB4, TLB, DATA1, 4, SMALL, 256 },
+ { 0xB5, TLB, DATA1, 8, SMALL, 64 },
+ { 0xB6, TLB, DATA1, 8, SMALL, 128 },
+ { 0xBA, TLB, DATA1, 4, BOTH, 64 },
+ { 0xC1, STLB, DATA1, 8, SMALL, 1024},
+ { 0xCA, STLB, DATA1, 4, SMALL, 512 },
+ { 0xD0, CACHE, L3, 4, 512*K, 64 },
+ { 0xD1, CACHE, L3, 4, 1*M, 64 },
+ { 0xD2, CACHE, L3, 4, 2*M, 64 },
+ { 0xD3, CACHE, L3, 4, 4*M, 64 },
+ { 0xD4, CACHE, L3, 4, 8*M, 64 },
+ { 0xD6, CACHE, L3, 8, 1*M, 64 },
+ { 0xD7, CACHE, L3, 8, 2*M, 64 },
+ { 0xD8, CACHE, L3, 8, 4*M, 64 },
+ { 0xD9, CACHE, L3, 8, 8*M, 64 },
+ { 0xDA, CACHE, L3, 8, 12*M, 64 },
+ { 0xDC, CACHE, L3, 12, 1536*K, 64 },
+ { 0xDD, CACHE, L3, 12, 3*M, 64 },
+ { 0xDE, CACHE, L3, 12, 6*M, 64 },
+ { 0xDF, CACHE, L3, 12, 12*M, 64 },
+ { 0xE0, CACHE, L3, 12, 18*M, 64 },
+ { 0xE2, CACHE, L3, 16, 2*M, 64 },
+ { 0xE3, CACHE, L3, 16, 4*M, 64 },
+ { 0xE4, CACHE, L3, 16, 8*M, 64 },
+ { 0xE5, CACHE, L3, 16, 16*M, 64 },
+ { 0xE6, CACHE, L3, 16, 24*M, 64 },
+ { 0xF0, PREFETCH, NA, NA, 64, NA },
+ { 0xF1, PREFETCH, NA, NA, 128, NA },
+ { 0xFF, CACHE, NA, NA, 0, NA }
+};
+#define INTEL_LEAF2_DESC_NUM (sizeof(intel_cpuid_leaf2_descriptor_table) / \
+ sizeof(cpuid_cache_descriptor_t))
+
+static inline cpuid_cache_descriptor_t *
+cpuid_leaf2_find(uint8_t value)
+{
+ unsigned int i;
+
+ for (i = 0; i < INTEL_LEAF2_DESC_NUM; i++)
+ if (intel_cpuid_leaf2_descriptor_table[i].value == value)
+ return &intel_cpuid_leaf2_descriptor_table[i];
+ return NULL;
+}
/*
* CPU identification routines.
*/
-static i386_cpu_info_t *cpuid_cpu_infop = NULL;
static i386_cpu_info_t cpuid_cpu_info;
+static i386_cpu_info_t *cpuid_cpu_infop = NULL;
+
+static void cpuid_fn(uint32_t selector, uint32_t *result)
+{
+ do_cpuid(selector, result);
+ DBG("cpuid_fn(0x%08x) eax:0x%08x ebx:0x%08x ecx:0x%08x edx:0x%08x\n",
+ selector, result[0], result[1], result[2], result[3]);
+}
+
+static const char *cache_type_str[LCACHE_MAX] = {
+ "Lnone", "L1I", "L1D", "L2U", "L3U"
+};
/* this function is Intel-specific */
static void
unsigned int j;
boolean_t cpuid_deterministic_supported = FALSE;
+ DBG("cpuid_set_cache_info(%p)\n", info_p);
+
bzero( linesizes, sizeof(linesizes) );
/* Get processor cache descriptor info using leaf 2. We don't use
* this internally, but must publish it for KEXTs.
*/
- do_cpuid(2, cpuid_result);
+ cpuid_fn(2, cpuid_result);
for (j = 0; j < 4; j++) {
if ((cpuid_result[j] >> 31) == 1) /* bit31 is validity */
continue;
for (i = 1; i < info_p->cache_info[0]; i++) {
if (i*16 > sizeof(info_p->cache_info))
break;
- do_cpuid(2, cpuid_result);
+ cpuid_fn(2, cpuid_result);
for (j = 0; j < 4; j++) {
if ((cpuid_result[j] >> 31) == 1)
continue;
* Most processors Mac OS X supports implement this flavor of CPUID.
* Loop over each cache on the processor.
*/
- do_cpuid(0, cpuid_result);
+ cpuid_fn(0, cpuid_result);
if (cpuid_result[eax] >= 4)
cpuid_deterministic_supported = TRUE;
reg[eax] = 4; /* cpuid request 4 */
reg[ecx] = index; /* index starting at 0 */
cpuid(reg);
-//kprintf("cpuid(4) index=%d eax=%p\n", index, reg[eax]);
- cache_type = bitfield(reg[eax], 4, 0);
+ DBG("cpuid(4) index=%d eax=0x%x\n", index, reg[eax]);
+ cache_type = bitfield32(reg[eax], 4, 0);
if (cache_type == 0)
break; /* no more caches */
- cache_level = bitfield(reg[eax], 7, 5);
- cache_sharing = bitfield(reg[eax], 25, 14) + 1;
+ cache_level = bitfield32(reg[eax], 7, 5);
+ cache_sharing = bitfield32(reg[eax], 25, 14) + 1;
info_p->cpuid_cores_per_package
- = bitfield(reg[eax], 31, 26) + 1;
- cache_linesize = bitfield(reg[ebx], 11, 0) + 1;
- cache_partitions = bitfield(reg[ebx], 21, 12) + 1;
- cache_associativity = bitfield(reg[ebx], 31, 22) + 1;
- cache_sets = bitfield(reg[ecx], 31, 0) + 1;
+ = bitfield32(reg[eax], 31, 26) + 1;
+ cache_linesize = bitfield32(reg[ebx], 11, 0) + 1;
+ cache_partitions = bitfield32(reg[ebx], 21, 12) + 1;
+ cache_associativity = bitfield32(reg[ebx], 31, 22) + 1;
+ cache_sets = bitfield32(reg[ecx], 31, 0) + 1;
/* Map type/levels returned by CPUID into cache_type_t */
switch (cache_level) {
}
/* The total size of a cache is:
- * ( linesize * sets * associativity )
+ * ( linesize * sets * associativity * partitions )
*/
if (type != Lnone) {
- cache_size = cache_linesize * cache_sets * cache_associativity;
+ cache_size = cache_linesize * cache_sets *
+ cache_associativity * cache_partitions;
info_p->cache_size[type] = cache_size;
info_p->cache_sharing[type] = cache_sharing;
info_p->cache_partitions[type] = cache_partitions;
linesizes[type] = cache_linesize;
-
+
+ DBG(" cache_size[%s] : %d\n",
+ cache_type_str[type], cache_size);
+ DBG(" cache_sharing[%s] : %d\n",
+ cache_type_str[type], cache_sharing);
+ DBG(" cache_partitions[%s]: %d\n",
+ cache_type_str[type], cache_partitions);
+
+ /*
+ * Overwrite associativity determined via
+ * CPUID.0x80000006 -- this leaf is more
+ * accurate
+ */
+ if (type == L2U)
+ info_p->cpuid_cache_L2_associativity = cache_associativity;
+
/* Compute the number of page colors for this cache,
* which is:
* ( linesize * sets ) / page_size
vm_cache_geometry_colors = colors;
}
}
+ DBG(" vm_cache_geometry_colors: %d\n", vm_cache_geometry_colors);
/*
* If deterministic cache parameters are not available, use
info_p->cache_partitions[L2U] = 1;
linesizes[L2U] = info_p->cpuid_cache_linesize;
+
+ DBG(" cache_size[L2U] : %d\n",
+ info_p->cache_size[L2U]);
+ DBG(" cache_sharing[L2U] : 1\n");
+ DBG(" cache_partitions[L2U]: 1\n");
+ DBG(" linesizes[L2U] : %d\n",
+ info_p->cpuid_cache_linesize);
}
/*
else if (linesizes[L1D])
info_p->cache_linesize = linesizes[L1D];
else panic("no linesize");
+ DBG(" cache_linesize : %d\n", info_p->cache_linesize);
/*
- * Extract and publish TLB information.
+ * Extract and publish TLB information from Leaf 2 descriptors.
*/
+ DBG(" %ld leaf2 descriptors:\n", sizeof(info_p->cache_info));
for (i = 1; i < sizeof(info_p->cache_info); i++) {
- uint8_t desc = info_p->cache_info[i];
+ cpuid_cache_descriptor_t *descp;
+ int id;
+ int level;
+ int page;
- switch (desc) {
- case CPUID_CACHE_ITLB_4K_32_4:
- info_p->cpuid_itlb_small = 32;
- break;
- case CPUID_CACHE_ITLB_4M_2:
- info_p->cpuid_itlb_large = 2;
- break;
- case CPUID_CACHE_DTLB_4K_64_4:
- info_p->cpuid_dtlb_small = 64;
- break;
- case CPUID_CACHE_DTLB_4M_8_4:
- info_p->cpuid_dtlb_large = 8;
- break;
- case CPUID_CACHE_DTLB_4M_32_4:
- info_p->cpuid_dtlb_large = 32;
- break;
- case CPUID_CACHE_ITLB_64:
- info_p->cpuid_itlb_small = 64;
- info_p->cpuid_itlb_large = 64;
- break;
- case CPUID_CACHE_ITLB_128:
- info_p->cpuid_itlb_small = 128;
- info_p->cpuid_itlb_large = 128;
- break;
- case CPUID_CACHE_ITLB_256:
- info_p->cpuid_itlb_small = 256;
- info_p->cpuid_itlb_large = 256;
- break;
- case CPUID_CACHE_DTLB_64:
- info_p->cpuid_dtlb_small = 64;
- info_p->cpuid_dtlb_large = 64;
- break;
- case CPUID_CACHE_DTLB_128:
- info_p->cpuid_dtlb_small = 128;
- info_p->cpuid_dtlb_large = 128;
- break;
- case CPUID_CACHE_DTLB_256:
- info_p->cpuid_dtlb_small = 256;
- info_p->cpuid_dtlb_large = 256;
- break;
- case CPUID_CACHE_ITLB_4M2M_7:
- info_p->cpuid_itlb_large = 7;
- break;
- case CPUID_CACHE_DTLB_4K_16_4:
- info_p->cpuid_dtlb_small = 16;
- break;
- case CPUID_CACHE_DTLB_4M2M_32_4:
- info_p->cpuid_dtlb_large = 32;
- break;
- case CPUID_CACHE_ITLB_4K_128_4:
- info_p->cpuid_itlb_small = 128;
- break;
- case CPUID_CACHE_ITLB_4M_8:
- info_p->cpuid_itlb_large = 8;
- break;
- case CPUID_CACHE_DTLB_4K_128_4:
- info_p->cpuid_dtlb_small = 128;
- break;
- case CPUID_CACHE_DTLB_4K_256_4:
- info_p->cpuid_dtlb_small = 256;
+ DBG(" 0x%02x", info_p->cache_info[i]);
+ descp = cpuid_leaf2_find(info_p->cache_info[i]);
+ if (descp == NULL)
+ continue;
+
+ switch (descp->type) {
+ case TLB:
+ page = (descp->size == SMALL) ? TLB_SMALL : TLB_LARGE;
+ /* determine I or D: */
+ switch (descp->level) {
+ case INST:
+ id = TLB_INST;
+ break;
+ case DATA:
+ case DATA0:
+ case DATA1:
+ id = TLB_DATA;
+ break;
+ default:
+ continue;
+ }
+ /* determine level: */
+ switch (descp->level) {
+ case DATA1:
+ level = 1;
+ break;
+ default:
+ level = 0;
+ }
+ info_p->cpuid_tlb[id][page][level] = descp->entries;
break;
+ case STLB:
+ info_p->cpuid_stlb = descp->entries;
}
}
+ DBG("\n");
}
static void
cpuid_set_generic_info(i386_cpu_info_t *info_p)
{
- uint32_t cpuid_reg[4];
- uint32_t max_extid;
+ uint32_t reg[4];
char str[128], *p;
+ DBG("cpuid_set_generic_info(%p)\n", info_p);
+
/* do cpuid 0 to get vendor */
- do_cpuid(0, cpuid_reg);
- bcopy((char *)&cpuid_reg[ebx], &info_p->cpuid_vendor[0], 4); /* ug */
- bcopy((char *)&cpuid_reg[ecx], &info_p->cpuid_vendor[8], 4);
- bcopy((char *)&cpuid_reg[edx], &info_p->cpuid_vendor[4], 4);
+ cpuid_fn(0, reg);
+ info_p->cpuid_max_basic = reg[eax];
+ bcopy((char *)®[ebx], &info_p->cpuid_vendor[0], 4); /* ug */
+ bcopy((char *)®[ecx], &info_p->cpuid_vendor[8], 4);
+ bcopy((char *)®[edx], &info_p->cpuid_vendor[4], 4);
info_p->cpuid_vendor[12] = 0;
/* get extended cpuid results */
- do_cpuid(0x80000000, cpuid_reg);
- max_extid = cpuid_reg[eax];
+ cpuid_fn(0x80000000, reg);
+ info_p->cpuid_max_ext = reg[eax];
/* check to see if we can get brand string */
- if (max_extid >= 0x80000004) {
+ if (info_p->cpuid_max_ext >= 0x80000004) {
/*
* The brand string 48 bytes (max), guaranteed to
* be NUL terminated.
*/
- do_cpuid(0x80000002, cpuid_reg);
- bcopy((char *)cpuid_reg, &str[0], 16);
- do_cpuid(0x80000003, cpuid_reg);
- bcopy((char *)cpuid_reg, &str[16], 16);
- do_cpuid(0x80000004, cpuid_reg);
- bcopy((char *)cpuid_reg, &str[32], 16);
+ cpuid_fn(0x80000002, reg);
+ bcopy((char *)reg, &str[0], 16);
+ cpuid_fn(0x80000003, reg);
+ bcopy((char *)reg, &str[16], 16);
+ cpuid_fn(0x80000004, reg);
+ bcopy((char *)reg, &str[32], 16);
for (p = str; *p != '\0'; p++) {
if (*p != ' ') break;
}
}
/* Get cache and addressing info. */
- if (max_extid >= 0x80000006) {
- do_cpuid(0x80000006, cpuid_reg);
- info_p->cpuid_cache_linesize = bitfield(cpuid_reg[ecx], 7, 0);
- info_p->cpuid_cache_L2_associativity =
- bitfield(cpuid_reg[ecx],15,12);
- info_p->cpuid_cache_size = bitfield(cpuid_reg[ecx],31,16);
- do_cpuid(0x80000008, cpuid_reg);
+ if (info_p->cpuid_max_ext >= 0x80000006) {
+ uint32_t assoc;
+ cpuid_fn(0x80000006, reg);
+ info_p->cpuid_cache_linesize = bitfield32(reg[ecx], 7, 0);
+ assoc = bitfield32(reg[ecx],15,12);
+ /*
+ * L2 associativity is encoded, though in an insufficiently
+ * descriptive fashion, e.g. 24-way is mapped to 16-way.
+ * Represent a fully associative cache as 0xFFFF.
+ * Overwritten by associativity as determined via CPUID.4
+ * if available.
+ */
+ if (assoc == 6)
+ assoc = 8;
+ else if (assoc == 8)
+ assoc = 16;
+ else if (assoc == 0xF)
+ assoc = 0xFFFF;
+ info_p->cpuid_cache_L2_associativity = assoc;
+ info_p->cpuid_cache_size = bitfield32(reg[ecx],31,16);
+ cpuid_fn(0x80000008, reg);
info_p->cpuid_address_bits_physical =
- bitfield(cpuid_reg[eax], 7, 0);
+ bitfield32(reg[eax], 7, 0);
info_p->cpuid_address_bits_virtual =
- bitfield(cpuid_reg[eax],15, 8);
+ bitfield32(reg[eax],15, 8);
}
- /* get processor signature and decode */
- do_cpuid(1, cpuid_reg);
- info_p->cpuid_signature = cpuid_reg[eax];
- info_p->cpuid_stepping = bitfield(cpuid_reg[eax], 3, 0);
- info_p->cpuid_model = bitfield(cpuid_reg[eax], 7, 4);
- info_p->cpuid_family = bitfield(cpuid_reg[eax], 11, 8);
- info_p->cpuid_type = bitfield(cpuid_reg[eax], 13, 12);
- info_p->cpuid_extmodel = bitfield(cpuid_reg[eax], 19, 16);
- info_p->cpuid_extfamily = bitfield(cpuid_reg[eax], 27, 20);
- info_p->cpuid_brand = bitfield(cpuid_reg[ebx], 7, 0);
- info_p->cpuid_features = quad(cpuid_reg[ecx], cpuid_reg[edx]);
+ /*
+ * Get processor signature and decode
+ * and bracket this with the approved procedure for reading the
+ * the microcode version number a.k.a. signature a.k.a. BIOS ID
+ */
+ wrmsr64(MSR_IA32_BIOS_SIGN_ID, 0);
+ cpuid_fn(1, reg);
+ info_p->cpuid_microcode_version =
+ (uint32_t) (rdmsr64(MSR_IA32_BIOS_SIGN_ID) >> 32);
+ info_p->cpuid_signature = reg[eax];
+ info_p->cpuid_stepping = bitfield32(reg[eax], 3, 0);
+ info_p->cpuid_model = bitfield32(reg[eax], 7, 4);
+ info_p->cpuid_family = bitfield32(reg[eax], 11, 8);
+ info_p->cpuid_type = bitfield32(reg[eax], 13, 12);
+ info_p->cpuid_extmodel = bitfield32(reg[eax], 19, 16);
+ info_p->cpuid_extfamily = bitfield32(reg[eax], 27, 20);
+ info_p->cpuid_brand = bitfield32(reg[ebx], 7, 0);
+ info_p->cpuid_features = quad(reg[ecx], reg[edx]);
+
+ /* Get "processor flag"; necessary for microcode update matching */
+ info_p->cpuid_processor_flag = (rdmsr64(MSR_IA32_PLATFORM_ID)>> 50) & 0x7;
/* Fold extensions into family/model */
if (info_p->cpuid_family == 0x0f)
if (info_p->cpuid_features & CPUID_FEATURE_HTT)
info_p->cpuid_logical_per_package =
- bitfield(cpuid_reg[ebx], 23, 16);
+ bitfield32(reg[ebx], 23, 16);
else
info_p->cpuid_logical_per_package = 1;
- if (max_extid >= 0x80000001) {
- do_cpuid(0x80000001, cpuid_reg);
+ if (info_p->cpuid_max_ext >= 0x80000001) {
+ cpuid_fn(0x80000001, reg);
info_p->cpuid_extfeatures =
- quad(cpuid_reg[ecx], cpuid_reg[edx]);
+ quad(reg[ecx], reg[edx]);
}
- if (info_p->cpuid_features & CPUID_FEATURE_MONITOR) {
+ DBG(" max_basic : %d\n", info_p->cpuid_max_basic);
+ DBG(" max_ext : 0x%08x\n", info_p->cpuid_max_ext);
+ DBG(" vendor : %s\n", info_p->cpuid_vendor);
+ DBG(" brand_string : %s\n", info_p->cpuid_brand_string);
+ DBG(" signature : 0x%08x\n", info_p->cpuid_signature);
+ DBG(" stepping : %d\n", info_p->cpuid_stepping);
+ DBG(" model : %d\n", info_p->cpuid_model);
+ DBG(" family : %d\n", info_p->cpuid_family);
+ DBG(" type : %d\n", info_p->cpuid_type);
+ DBG(" extmodel : %d\n", info_p->cpuid_extmodel);
+ DBG(" extfamily : %d\n", info_p->cpuid_extfamily);
+ DBG(" brand : %d\n", info_p->cpuid_brand);
+ DBG(" features : 0x%016llx\n", info_p->cpuid_features);
+ DBG(" extfeatures : 0x%016llx\n", info_p->cpuid_extfeatures);
+ DBG(" logical_per_package : %d\n", info_p->cpuid_logical_per_package);
+ DBG(" microcode_version : 0x%08x\n", info_p->cpuid_microcode_version);
+
+ /* Fold in the Invariant TSC feature bit, if present */
+ if (info_p->cpuid_max_ext >= 0x80000007) {
+ cpuid_fn(0x80000007, reg);
+ info_p->cpuid_extfeatures |=
+ reg[edx] & (uint32_t)CPUID_EXTFEATURE_TSCI;
+ DBG(" extfeatures : 0x%016llx\n",
+ info_p->cpuid_extfeatures);
+ }
+
+ if (info_p->cpuid_max_basic >= 0x5) {
+ cpuid_mwait_leaf_t *cmp = &info_p->cpuid_mwait_leaf;
+
/*
* Extract the Monitor/Mwait Leaf info:
*/
- do_cpuid(5, cpuid_reg);
- info_p->cpuid_mwait_linesize_min = cpuid_reg[eax];
- info_p->cpuid_mwait_linesize_max = cpuid_reg[ebx];
- info_p->cpuid_mwait_extensions = cpuid_reg[ecx];
- info_p->cpuid_mwait_sub_Cstates = cpuid_reg[edx];
+ cpuid_fn(5, reg);
+ cmp->linesize_min = reg[eax];
+ cmp->linesize_max = reg[ebx];
+ cmp->extensions = reg[ecx];
+ cmp->sub_Cstates = reg[edx];
+ info_p->cpuid_mwait_leafp = cmp;
+
+ DBG(" Monitor/Mwait Leaf:\n");
+ DBG(" linesize_min : %d\n", cmp->linesize_min);
+ DBG(" linesize_max : %d\n", cmp->linesize_max);
+ DBG(" extensions : %d\n", cmp->extensions);
+ DBG(" sub_Cstates : 0x%08x\n", cmp->sub_Cstates);
+ }
+
+ if (info_p->cpuid_max_basic >= 0x6) {
+ cpuid_thermal_leaf_t *ctp = &info_p->cpuid_thermal_leaf;
+
+ /*
+ * The thermal and Power Leaf:
+ */
+ cpuid_fn(6, reg);
+ ctp->sensor = bitfield32(reg[eax], 0, 0);
+ ctp->dynamic_acceleration = bitfield32(reg[eax], 1, 1);
+ ctp->invariant_APIC_timer = bitfield32(reg[eax], 2, 2);
+ ctp->core_power_limits = bitfield32(reg[eax], 4, 4);
+ ctp->fine_grain_clock_mod = bitfield32(reg[eax], 5, 5);
+ ctp->package_thermal_intr = bitfield32(reg[eax], 6, 6);
+ ctp->thresholds = bitfield32(reg[ebx], 3, 0);
+ ctp->ACNT_MCNT = bitfield32(reg[ecx], 0, 0);
+ ctp->hardware_feedback = bitfield32(reg[ecx], 1, 1);
+ ctp->energy_policy = bitfield32(reg[ecx], 3, 3);
+ info_p->cpuid_thermal_leafp = ctp;
+
+ DBG(" Thermal/Power Leaf:\n");
+ DBG(" sensor : %d\n", ctp->sensor);
+ DBG(" dynamic_acceleration : %d\n", ctp->dynamic_acceleration);
+ DBG(" invariant_APIC_timer : %d\n", ctp->invariant_APIC_timer);
+ DBG(" core_power_limits : %d\n", ctp->core_power_limits);
+ DBG(" fine_grain_clock_mod : %d\n", ctp->fine_grain_clock_mod);
+ DBG(" package_thermal_intr : %d\n", ctp->package_thermal_intr);
+ DBG(" thresholds : %d\n", ctp->thresholds);
+ DBG(" ACNT_MCNT : %d\n", ctp->ACNT_MCNT);
+ DBG(" ACNT2 : %d\n", ctp->hardware_feedback);
+ DBG(" energy_policy : %d\n", ctp->energy_policy);
+ }
+
+ if (info_p->cpuid_max_basic >= 0xa) {
+ cpuid_arch_perf_leaf_t *capp = &info_p->cpuid_arch_perf_leaf;
+
+ /*
+ * Architectural Performance Monitoring Leaf:
+ */
+ cpuid_fn(0xa, reg);
+ capp->version = bitfield32(reg[eax], 7, 0);
+ capp->number = bitfield32(reg[eax], 15, 8);
+ capp->width = bitfield32(reg[eax], 23, 16);
+ capp->events_number = bitfield32(reg[eax], 31, 24);
+ capp->events = reg[ebx];
+ capp->fixed_number = bitfield32(reg[edx], 4, 0);
+ capp->fixed_width = bitfield32(reg[edx], 12, 5);
+ info_p->cpuid_arch_perf_leafp = capp;
+
+ DBG(" Architectural Performance Monitoring Leaf:\n");
+ DBG(" version : %d\n", capp->version);
+ DBG(" number : %d\n", capp->number);
+ DBG(" width : %d\n", capp->width);
+ DBG(" events_number : %d\n", capp->events_number);
+ DBG(" events : %d\n", capp->events);
+ DBG(" fixed_number : %d\n", capp->fixed_number);
+ DBG(" fixed_width : %d\n", capp->fixed_width);
+ }
+ if (info_p->cpuid_max_basic >= 0xd) {
+ cpuid_xsave_leaf_t *xsp = &info_p->cpuid_xsave_leaf;
/*
- * And the thermal and Power Leaf while we're at it:
+ * XSAVE Features:
*/
- do_cpuid(6, cpuid_reg);
- info_p->cpuid_thermal_sensor =
- bitfield(cpuid_reg[eax], 0, 0);
- info_p->cpuid_thermal_dynamic_acceleration =
- bitfield(cpuid_reg[eax], 1, 1);
- info_p->cpuid_thermal_thresholds =
- bitfield(cpuid_reg[ebx], 3, 0);
- info_p->cpuid_thermal_ACNT_MCNT =
- bitfield(cpuid_reg[ecx], 0, 0);
+ cpuid_fn(0xd, info_p->cpuid_xsave_leaf.extended_state);
+ info_p->cpuid_xsave_leafp = xsp;
+ DBG(" XSAVE Leaf:\n");
+ DBG(" EAX : 0x%x\n", xsp->extended_state[eax]);
+ DBG(" EBX : 0x%x\n", xsp->extended_state[ebx]);
+ DBG(" ECX : 0x%x\n", xsp->extended_state[ecx]);
+ DBG(" EDX : 0x%x\n", xsp->extended_state[edx]);
+ }
+
+ if (info_p->cpuid_model >= CPUID_MODEL_IVYBRIDGE) {
/*
- * And the Architectural Performance Monitoring Leaf:
+ * Leaf7 Features:
*/
- do_cpuid(0xa, cpuid_reg);
- info_p->cpuid_arch_perf_version =
- bitfield(cpuid_reg[eax], 7, 0);
- info_p->cpuid_arch_perf_number =
- bitfield(cpuid_reg[eax],15, 8);
- info_p->cpuid_arch_perf_width =
- bitfield(cpuid_reg[eax],23,16);
- info_p->cpuid_arch_perf_events_number =
- bitfield(cpuid_reg[eax],31,24);
- info_p->cpuid_arch_perf_events =
- cpuid_reg[ebx];
- info_p->cpuid_arch_perf_fixed_number =
- bitfield(cpuid_reg[edx], 4, 0);
- info_p->cpuid_arch_perf_fixed_width =
- bitfield(cpuid_reg[edx],12, 5);
+ cpuid_fn(0x7, reg);
+ info_p->cpuid_leaf7_features = reg[ebx];
+ DBG(" Feature Leaf7:\n");
+ DBG(" EBX : 0x%x\n", reg[ebx]);
}
return;
}
+static uint32_t
+cpuid_set_cpufamily(i386_cpu_info_t *info_p)
+{
+ uint32_t cpufamily = CPUFAMILY_UNKNOWN;
+
+ switch (info_p->cpuid_family) {
+ case 6:
+ switch (info_p->cpuid_model) {
+ case 15:
+ cpufamily = CPUFAMILY_INTEL_MEROM;
+ break;
+ case 23:
+ cpufamily = CPUFAMILY_INTEL_PENRYN;
+ break;
+ case CPUID_MODEL_NEHALEM:
+ case CPUID_MODEL_FIELDS:
+ case CPUID_MODEL_DALES:
+ 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;
+ case CPUID_MODEL_SANDYBRIDGE:
+ case CPUID_MODEL_JAKETOWN:
+ cpufamily = CPUFAMILY_INTEL_SANDYBRIDGE;
+ break;
+ case CPUID_MODEL_IVYBRIDGE:
+ case CPUID_MODEL_IVYBRIDGE_EP:
+ cpufamily = CPUFAMILY_INTEL_IVYBRIDGE;
+ break;
+ case CPUID_MODEL_HASWELL:
+ case CPUID_MODEL_HASWELL_ULT:
+ case CPUID_MODEL_CRYSTALWELL:
+ cpufamily = CPUFAMILY_INTEL_HASWELL;
+ break;
+ }
+ break;
+ }
+
+ info_p->cpuid_cpufamily = cpufamily;
+ DBG("cpuid_set_cpufamily(%p) returning 0x%x\n", info_p, cpufamily);
+ return cpufamily;
+}
+/*
+ * Must be invoked either when executing single threaded, or with
+ * independent synchronization.
+ */
void
cpuid_set_info(void)
{
- bzero((void *)&cpuid_cpu_info, sizeof(cpuid_cpu_info));
+ i386_cpu_info_t *info_p = &cpuid_cpu_info;
- cpuid_set_generic_info(&cpuid_cpu_info);
+ cpuid_set_generic_info(info_p);
/* verify we are running on a supported CPU */
- if ((strncmp(CPUID_VID_INTEL, cpuid_cpu_info.cpuid_vendor,
+ if ((strncmp(CPUID_VID_INTEL, info_p->cpuid_vendor,
min(strlen(CPUID_STRING_UNKNOWN) + 1,
- sizeof(cpuid_cpu_info.cpuid_vendor)))) ||
- (cpuid_cpu_info.cpuid_family != 6) ||
- (cpuid_cpu_info.cpuid_model < 13))
+ sizeof(info_p->cpuid_vendor)))) ||
+ (cpuid_set_cpufamily(info_p) == CPUFAMILY_UNKNOWN))
panic("Unsupported CPU");
- cpuid_cpu_info.cpuid_cpu_type = CPU_TYPE_X86;
- cpuid_cpu_info.cpuid_cpu_subtype = CPU_SUBTYPE_X86_ARCH1;
+ info_p->cpuid_cpu_type = CPU_TYPE_X86;
+ info_p->cpuid_cpu_subtype = CPU_SUBTYPE_X86_ARCH1;
+ /* Must be invoked after set_generic_info */
+ cpuid_set_cache_info(info_p);
- cpuid_set_cache_info(&cpuid_cpu_info);
-
- if (cpuid_cpu_info.core_count == 0) {
- cpuid_cpu_info.core_count =
- cpuid_cpu_info.cpuid_cores_per_package;
- cpuid_cpu_info.thread_count =
- cpuid_cpu_info.cpuid_logical_per_package;
+ /*
+ * Find the number of enabled cores and threads
+ * (which determines whether SMT/Hyperthreading is active).
+ */
+ switch (info_p->cpuid_cpufamily) {
+ 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_HASWELL:
+ case CPUFAMILY_INTEL_IVYBRIDGE:
+ case CPUFAMILY_INTEL_SANDYBRIDGE:
+ case CPUFAMILY_INTEL_NEHALEM: {
+ uint64_t msr = rdmsr64(MSR_CORE_THREAD_COUNT);
+ info_p->core_count = bitfield32((uint32_t)msr, 31, 16);
+ info_p->thread_count = bitfield32((uint32_t)msr, 15, 0);
+ break;
+ }
}
+ if (info_p->core_count == 0) {
+ info_p->core_count = info_p->cpuid_cores_per_package;
+ info_p->thread_count = info_p->cpuid_logical_per_package;
+ }
+ DBG("cpuid_set_info():\n");
+ DBG(" core_count : %d\n", info_p->core_count);
+ DBG(" thread_count : %d\n", info_p->thread_count);
- cpuid_cpu_info.cpuid_model_string = ""; /* deprecated */
+ info_p->cpuid_model_string = ""; /* deprecated */
}
-static struct {
+static struct table {
uint64_t mask;
const char *name;
} feature_map[] = {
- {CPUID_FEATURE_FPU, "FPU",},
- {CPUID_FEATURE_VME, "VME",},
- {CPUID_FEATURE_DE, "DE",},
- {CPUID_FEATURE_PSE, "PSE",},
- {CPUID_FEATURE_TSC, "TSC",},
- {CPUID_FEATURE_MSR, "MSR",},
- {CPUID_FEATURE_PAE, "PAE",},
- {CPUID_FEATURE_MCE, "MCE",},
- {CPUID_FEATURE_CX8, "CX8",},
- {CPUID_FEATURE_APIC, "APIC",},
- {CPUID_FEATURE_SEP, "SEP",},
- {CPUID_FEATURE_MTRR, "MTRR",},
- {CPUID_FEATURE_PGE, "PGE",},
- {CPUID_FEATURE_MCA, "MCA",},
- {CPUID_FEATURE_CMOV, "CMOV",},
- {CPUID_FEATURE_PAT, "PAT",},
- {CPUID_FEATURE_PSE36, "PSE36",},
- {CPUID_FEATURE_PSN, "PSN",},
- {CPUID_FEATURE_CLFSH, "CLFSH",},
- {CPUID_FEATURE_DS, "DS",},
- {CPUID_FEATURE_ACPI, "ACPI",},
- {CPUID_FEATURE_MMX, "MMX",},
- {CPUID_FEATURE_FXSR, "FXSR",},
- {CPUID_FEATURE_SSE, "SSE",},
- {CPUID_FEATURE_SSE2, "SSE2",},
- {CPUID_FEATURE_SS, "SS",},
- {CPUID_FEATURE_HTT, "HTT",},
- {CPUID_FEATURE_TM, "TM",},
- {CPUID_FEATURE_SSE3, "SSE3"},
- {CPUID_FEATURE_MONITOR, "MON"},
- {CPUID_FEATURE_DSCPL, "DSCPL"},
- {CPUID_FEATURE_VMX, "VMX"},
- {CPUID_FEATURE_SMX, "SMX"},
- {CPUID_FEATURE_EST, "EST"},
- {CPUID_FEATURE_TM2, "TM2"},
- {CPUID_FEATURE_SSSE3, "SSSE3"},
- {CPUID_FEATURE_CID, "CID"},
- {CPUID_FEATURE_CX16, "CX16"},
- {CPUID_FEATURE_xTPR, "TPR"},
- {CPUID_FEATURE_PDCM, "PDCM"},
- {CPUID_FEATURE_SSE4_1, "SSE4.1"},
- {CPUID_FEATURE_SSE4_2, "SSE4.2"},
- {CPUID_FEATURE_xAPIC, "xAPIC"},
- {CPUID_FEATURE_POPCNT, "POPCNT"},
+ {CPUID_FEATURE_FPU, "FPU"},
+ {CPUID_FEATURE_VME, "VME"},
+ {CPUID_FEATURE_DE, "DE"},
+ {CPUID_FEATURE_PSE, "PSE"},
+ {CPUID_FEATURE_TSC, "TSC"},
+ {CPUID_FEATURE_MSR, "MSR"},
+ {CPUID_FEATURE_PAE, "PAE"},
+ {CPUID_FEATURE_MCE, "MCE"},
+ {CPUID_FEATURE_CX8, "CX8"},
+ {CPUID_FEATURE_APIC, "APIC"},
+ {CPUID_FEATURE_SEP, "SEP"},
+ {CPUID_FEATURE_MTRR, "MTRR"},
+ {CPUID_FEATURE_PGE, "PGE"},
+ {CPUID_FEATURE_MCA, "MCA"},
+ {CPUID_FEATURE_CMOV, "CMOV"},
+ {CPUID_FEATURE_PAT, "PAT"},
+ {CPUID_FEATURE_PSE36, "PSE36"},
+ {CPUID_FEATURE_PSN, "PSN"},
+ {CPUID_FEATURE_CLFSH, "CLFSH"},
+ {CPUID_FEATURE_DS, "DS"},
+ {CPUID_FEATURE_ACPI, "ACPI"},
+ {CPUID_FEATURE_MMX, "MMX"},
+ {CPUID_FEATURE_FXSR, "FXSR"},
+ {CPUID_FEATURE_SSE, "SSE"},
+ {CPUID_FEATURE_SSE2, "SSE2"},
+ {CPUID_FEATURE_SS, "SS"},
+ {CPUID_FEATURE_HTT, "HTT"},
+ {CPUID_FEATURE_TM, "TM"},
+ {CPUID_FEATURE_PBE, "PBE"},
+ {CPUID_FEATURE_SSE3, "SSE3"},
+ {CPUID_FEATURE_PCLMULQDQ, "PCLMULQDQ"},
+ {CPUID_FEATURE_DTES64, "DTES64"},
+ {CPUID_FEATURE_MONITOR, "MON"},
+ {CPUID_FEATURE_DSCPL, "DSCPL"},
+ {CPUID_FEATURE_VMX, "VMX"},
+ {CPUID_FEATURE_SMX, "SMX"},
+ {CPUID_FEATURE_EST, "EST"},
+ {CPUID_FEATURE_TM2, "TM2"},
+ {CPUID_FEATURE_SSSE3, "SSSE3"},
+ {CPUID_FEATURE_CID, "CID"},
+ {CPUID_FEATURE_FMA, "FMA"},
+ {CPUID_FEATURE_CX16, "CX16"},
+ {CPUID_FEATURE_xTPR, "TPR"},
+ {CPUID_FEATURE_PDCM, "PDCM"},
+ {CPUID_FEATURE_SSE4_1, "SSE4.1"},
+ {CPUID_FEATURE_SSE4_2, "SSE4.2"},
+ {CPUID_FEATURE_x2APIC, "x2APIC"},
+ {CPUID_FEATURE_MOVBE, "MOVBE"},
+ {CPUID_FEATURE_POPCNT, "POPCNT"},
+ {CPUID_FEATURE_AES, "AES"},
+ {CPUID_FEATURE_VMM, "VMM"},
+ {CPUID_FEATURE_PCID, "PCID"},
+ {CPUID_FEATURE_XSAVE, "XSAVE"},
+ {CPUID_FEATURE_OSXSAVE, "OSXSAVE"},
+ {CPUID_FEATURE_SEGLIM64, "SEGLIM64"},
+ {CPUID_FEATURE_TSCTMR, "TSCTMR"},
+ {CPUID_FEATURE_AVX1_0, "AVX1.0"},
+ {CPUID_FEATURE_RDRAND, "RDRAND"},
+ {CPUID_FEATURE_F16C, "F16C"},
{0, 0}
},
extfeature_map[] = {
{CPUID_EXTFEATURE_SYSCALL, "SYSCALL"},
{CPUID_EXTFEATURE_XD, "XD"},
+ {CPUID_EXTFEATURE_1GBPAGE, "1GBPAGE"},
{CPUID_EXTFEATURE_EM64T, "EM64T"},
{CPUID_EXTFEATURE_LAHF, "LAHF"},
+ {CPUID_EXTFEATURE_RDTSCP, "RDTSCP"},
+ {CPUID_EXTFEATURE_TSCI, "TSCI"},
{0, 0}
-};
-i386_cpu_info_t *
-cpuid_info(void)
-{
- /* Set-up the cpuid_info stucture lazily */
- if (cpuid_cpu_infop == NULL) {
- cpuid_set_info();
- cpuid_cpu_infop = &cpuid_cpu_info;
- }
- return cpuid_cpu_infop;
-}
+},
+leaf7_feature_map[] = {
+ {CPUID_LEAF7_FEATURE_SMEP, "SMEP"},
+ {CPUID_LEAF7_FEATURE_ENFSTRG, "ENFSTRG"},
+ {CPUID_LEAF7_FEATURE_RDWRFSGS, "RDWRFSGS"},
+ {CPUID_LEAF7_FEATURE_TSCOFF, "TSC_THREAD_OFFSET"},
+ {CPUID_LEAF7_FEATURE_BMI1, "BMI1"},
+ {CPUID_LEAF7_FEATURE_HLE, "HLE"},
+ {CPUID_LEAF7_FEATURE_AVX2, "AVX2"},
+ {CPUID_LEAF7_FEATURE_BMI2, "BMI2"},
+ {CPUID_LEAF7_FEATURE_INVPCID, "INVPCID"},
+ {CPUID_LEAF7_FEATURE_RTM, "RTM"},
+ {0, 0}
+};
-char *
-cpuid_get_feature_names(uint64_t features, char *buf, unsigned buf_len)
+static char *
+cpuid_get_names(struct table *map, uint64_t bits, char *buf, unsigned buf_len)
{
- int len = -1;
+ size_t len = 0;
char *p = buf;
int i;
- for (i = 0; feature_map[i].mask != 0; i++) {
- if ((features & feature_map[i].mask) == 0)
+ for (i = 0; map[i].mask != 0; i++) {
+ if ((bits & map[i].mask) == 0)
continue;
- if (len > 0)
+ if (len && ((size_t) (p - buf) < (buf_len - 1)))
*p++ = ' ';
- len = min(strlen(feature_map[i].name), (buf_len-1) - (p-buf));
+ len = min(strlen(map[i].name), (size_t)((buf_len-1)-(p-buf)));
if (len == 0)
break;
- bcopy(feature_map[i].name, p, len);
+ bcopy(map[i].name, p, len);
p += len;
}
*p = '\0';
return buf;
}
-char *
-cpuid_get_extfeature_names(uint64_t extfeatures, char *buf, unsigned buf_len)
+i386_cpu_info_t *
+cpuid_info(void)
{
- int len = -1;
- char *p = buf;
- int i;
-
- for (i = 0; extfeature_map[i].mask != 0; i++) {
- if ((extfeatures & extfeature_map[i].mask) == 0)
- continue;
- if (len > 0)
- *p++ = ' ';
- len = min(strlen(extfeature_map[i].name), (buf_len-1)-(p-buf));
- if (len == 0)
- break;
- bcopy(extfeature_map[i].name, p, len);
- p += len;
+ /* Set-up the cpuid_info stucture lazily */
+ if (cpuid_cpu_infop == NULL) {
+ PE_parse_boot_argn("-cpuid", &cpuid_dbg, sizeof(cpuid_dbg));
+ cpuid_set_info();
+ cpuid_cpu_infop = &cpuid_cpu_info;
}
- *p = '\0';
- return buf;
+ return cpuid_cpu_infop;
}
-
-#if CONFIG_NO_KPRINTF_STRINGS
-void
-cpuid_feature_display(
- __unused const char *header)
+char *
+cpuid_get_feature_names(uint64_t features, char *buf, unsigned buf_len)
{
+ return cpuid_get_names(feature_map, features, buf, buf_len);
}
-void
-cpuid_extfeature_display(
- __unused const char *header)
+char *
+cpuid_get_extfeature_names(uint64_t extfeatures, char *buf, unsigned buf_len)
{
+ return cpuid_get_names(extfeature_map, extfeatures, buf, buf_len);
}
-void
-cpuid_cpu_display(
- __unused const char *header)
+char *
+cpuid_get_leaf7_feature_names(uint64_t features, char *buf, unsigned buf_len)
{
+ return cpuid_get_names(leaf7_feature_map, features, buf, buf_len);
}
-#else /* CONFIG_NO_KPRINTF_STRINGS */
+
void
cpuid_feature_display(
const char *header)
{
char buf[256];
- kprintf("%s: %s\n", header,
- cpuid_get_feature_names(cpuid_features(),
- buf, sizeof(buf)));
+ kprintf("%s: %s", header,
+ cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf)));
+ if (cpuid_leaf7_features())
+ kprintf(" %s", cpuid_get_leaf7_feature_names(
+ cpuid_leaf7_features(), buf, sizeof(buf)));
+ kprintf("\n");
if (cpuid_features() & CPUID_FEATURE_HTT) {
#define s_if_plural(n) ((n > 1) ? "s" : "")
kprintf(" HTT: %d core%s per package;"
" %d logical cpu%s per package\n",
- cpuid_cpu_info.cpuid_cores_per_package,
- s_if_plural(cpuid_cpu_info.cpuid_cores_per_package),
- cpuid_cpu_info.cpuid_logical_per_package,
- s_if_plural(cpuid_cpu_info.cpuid_logical_per_package));
+ cpuid_cpu_infop->cpuid_cores_per_package,
+ s_if_plural(cpuid_cpu_infop->cpuid_cores_per_package),
+ cpuid_cpu_infop->cpuid_logical_per_package,
+ s_if_plural(cpuid_cpu_infop->cpuid_logical_per_package));
}
}
cpuid_cpu_display(
const char *header)
{
- if (cpuid_cpu_info.cpuid_brand_string[0] != '\0') {
- kprintf("%s: %s\n", header, cpuid_cpu_info.cpuid_brand_string);
+ if (cpuid_cpu_infop->cpuid_brand_string[0] != '\0') {
+ kprintf("%s: %s\n", header, cpuid_cpu_infop->cpuid_brand_string);
}
}
-#endif /* !CONFIG_NO_KPRINTF_STRINGS */
unsigned int
cpuid_family(void)
return cpuid_info()->cpuid_family;
}
+uint32_t
+cpuid_cpufamily(void)
+{
+ return cpuid_info()->cpuid_cpufamily;
+}
+
cpu_type_t
cpuid_cputype(void)
{
printf("limiting fpu features to: %s\n", fpu_arg);
if (!strncmp("387", fpu_arg, sizeof("387")) || !strncmp("mmx", fpu_arg, sizeof("mmx"))) {
printf("no sse or sse2\n");
- cpuid_cpu_info.cpuid_features &= ~(CPUID_FEATURE_SSE | CPUID_FEATURE_SSE2 | CPUID_FEATURE_FXSR);
+ cpuid_cpu_infop->cpuid_features &= ~(CPUID_FEATURE_SSE | CPUID_FEATURE_SSE2 | CPUID_FEATURE_FXSR);
} else if (!strncmp("sse", fpu_arg, sizeof("sse"))) {
printf("no sse2\n");
- cpuid_cpu_info.cpuid_features &= ~(CPUID_FEATURE_SSE2);
+ cpuid_cpu_infop->cpuid_features &= ~(CPUID_FEATURE_SSE2);
}
}
checked = 1;
}
- return cpuid_cpu_info.cpuid_features;
+ return cpuid_cpu_infop->cpuid_features;
}
uint64_t
return cpuid_info()->cpuid_extfeatures;
}
+uint64_t
+cpuid_leaf7_features(void)
+{
+ return cpuid_info()->cpuid_leaf7_features;
+}
-#if MACH_KDB
+static i386_vmm_info_t *_cpuid_vmm_infop = NULL;
+static i386_vmm_info_t _cpuid_vmm_info;
-/*
- * Display the cpuid
- * *
- * cp
- */
-void
-db_cpuid(__unused db_expr_t addr,
- __unused int have_addr,
- __unused db_expr_t count,
- __unused char *modif)
+static void
+cpuid_init_vmm_info(i386_vmm_info_t *info_p)
{
+ uint32_t reg[4];
+ uint32_t max_vmm_leaf;
- uint32_t i, mid;
- uint32_t cpid[4];
+ bzero(info_p, sizeof(*info_p));
- do_cpuid(0, cpid); /* Get the first cpuid which is the number of
- * basic ids */
- db_printf("%08X - %08X %08X %08X %08X\n",
- 0, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+ if (!cpuid_vmm_present())
+ return;
- mid = cpid[eax]; /* Set the number */
- for (i = 1; i <= mid; i++) { /* Dump 'em out */
- do_cpuid(i, cpid); /* Get the next */
- db_printf("%08X - %08X %08X %08X %08X\n",
- i, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+ DBG("cpuid_init_vmm_info(%p)\n", info_p);
+
+ /* do cpuid 0x40000000 to get VMM vendor */
+ cpuid_fn(0x40000000, reg);
+ max_vmm_leaf = reg[eax];
+ bcopy((char *)®[ebx], &info_p->cpuid_vmm_vendor[0], 4);
+ bcopy((char *)®[ecx], &info_p->cpuid_vmm_vendor[4], 4);
+ bcopy((char *)®[edx], &info_p->cpuid_vmm_vendor[8], 4);
+ info_p->cpuid_vmm_vendor[12] = '\0';
+
+ if (0 == strcmp(info_p->cpuid_vmm_vendor, CPUID_VMM_ID_VMWARE)) {
+ /* VMware identification string: kb.vmware.com/kb/1009458 */
+ info_p->cpuid_vmm_family = CPUID_VMM_FAMILY_VMWARE;
+ } else {
+ info_p->cpuid_vmm_family = CPUID_VMM_FAMILY_UNKNOWN;
+ }
+
+ /* VMM generic leaves: https://lkml.org/lkml/2008/10/1/246 */
+ if (max_vmm_leaf >= 0x40000010) {
+ cpuid_fn(0x40000010, reg);
+
+ info_p->cpuid_vmm_tsc_frequency = reg[eax];
+ info_p->cpuid_vmm_bus_frequency = reg[ebx];
}
- db_printf("\n");
-
- do_cpuid(0x80000000, cpid); /* Get the first extended cpuid which
- * is the number of extended ids */
- db_printf("%08X - %08X %08X %08X %08X\n",
- 0x80000000, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
-
- mid = cpid[eax]; /* Set the number */
- for (i = 0x80000001; i <= mid; i++) { /* Dump 'em out */
- do_cpuid(i, cpid); /* Get the next */
- db_printf("%08X - %08X %08X %08X %08X\n",
- i, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+
+ DBG(" vmm_vendor : %s\n", info_p->cpuid_vmm_vendor);
+ DBG(" vmm_family : %u\n", info_p->cpuid_vmm_family);
+ DBG(" vmm_bus_frequency : %u\n", info_p->cpuid_vmm_bus_frequency);
+ DBG(" vmm_tsc_frequency : %u\n", info_p->cpuid_vmm_tsc_frequency);
+}
+
+boolean_t
+cpuid_vmm_present(void)
+{
+ return (cpuid_features() & CPUID_FEATURE_VMM) ? TRUE : FALSE;
+}
+
+i386_vmm_info_t *
+cpuid_vmm_info(void)
+{
+ if (_cpuid_vmm_infop == NULL) {
+ cpuid_init_vmm_info(&_cpuid_vmm_info);
+ _cpuid_vmm_infop = &_cpuid_vmm_info;
}
+ return _cpuid_vmm_infop;
+}
+
+uint32_t
+cpuid_vmm_family(void)
+{
+ return cpuid_vmm_info()->cpuid_vmm_family;
}
-#endif
projects / apple / xnu.git / blobdiff