/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-
+#include <platforms.h>
+#include <vm/vm_page.h>
#include <pexpert/pexpert.h>
-#include "cpuid.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))
+
+/* 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))
/*
- * CPU identification routines.
- *
- * Note that this code assumes a processor that supports the
- * 'cpuid' instruction.
+ * 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;
-static unsigned int cpuid_maxcpuid;
+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;
-static i386_cpu_info_t cpuid_cpu_info;
+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;
-uint32_t cpuid_feature; /* XXX obsolescent for compat */
+/*
+ * These multipliers are used to encode 1*K .. 64*M in a 16 bit size field
+ */
+#define K (1)
+#define M (1024)
/*
- * We only identify Intel CPUs here. Adding support
- * for others would be straightforward.
+ * Intel cache descriptor table:
*/
-static void set_cpu_generic(i386_cpu_info_t *);
-static void set_cpu_intel(i386_cpu_info_t *);
-static void set_cpu_amd(i386_cpu_info_t *);
-static void set_cpu_nsc(i386_cpu_info_t *);
-static void set_cpu_unknown(i386_cpu_info_t *);
-
-struct {
- const char *vendor;
- void (* func)(i386_cpu_info_t *);
-} cpu_vendors[] = {
- {CPUID_VID_INTEL, set_cpu_intel},
- {CPUID_VID_AMD, set_cpu_amd},
- {CPUID_VID_NSC, set_cpu_nsc},
- {0, set_cpu_unknown}
+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))
-void
-cpuid_get_info(i386_cpu_info_t *info_p)
+static inline cpuid_cache_descriptor_t *
+cpuid_leaf2_find(uint8_t value)
{
- uint32_t cpuid_result[4];
- int i;
-
- bzero((void *)info_p, sizeof(i386_cpu_info_t));
-
- /* do cpuid 0 to get vendor */
- do_cpuid(0, cpuid_result);
- cpuid_maxcpuid = cpuid_result[0];
- bcopy((char *)&cpuid_result[1], &info_p->cpuid_vendor[0], 4); /* ugh */
- bcopy((char *)&cpuid_result[2], &info_p->cpuid_vendor[8], 4);
- bcopy((char *)&cpuid_result[3], &info_p->cpuid_vendor[4], 4);
- info_p->cpuid_vendor[12] = 0;
+ unsigned int i;
- /* look up vendor */
- for (i = 0; ; i++) {
- if ((cpu_vendors[i].vendor == 0) ||
- (!strcmp(cpu_vendors[i].vendor, info_p->cpuid_vendor))) {
- cpu_vendors[i].func(info_p);
- break;
- }
- }
+ 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;
}
/*
- * Cache descriptor table. Each row has the form:
- * (descriptor_value, cache, size, linesize,
- * description)
- * Note: the CACHE_DESC macro does not expand description text in the kernel.
+ * CPU identification routines.
*/
-static cpuid_cache_desc_t cpuid_cache_desc_tab[] = {
-CACHE_DESC(CPUID_CACHE_ITLB_4K, Lnone, 0, 0, \
- "Instruction TLB, 4K, pages 4-way set associative, 64 entries"),
-CACHE_DESC(CPUID_CACHE_ITLB_4M, Lnone, 0, 0, \
- "Instruction TLB, 4M, pages 4-way set associative, 2 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_4K, Lnone, 0, 0, \
- "Data TLB, 4K pages, 4-way set associative, 64 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_4M, Lnone, 0, 0, \
- "Data TLB, 4M pages, 4-way set associative, 8 entries"),
-CACHE_DESC(CPUID_CACHE_ITLB_64, Lnone, 0, 0, \
- "Instruction TLB, 4K and 2M or 4M pages, 64 entries"),
-CACHE_DESC(CPUID_CACHE_ITLB_128, Lnone, 0, 0, \
- "Instruction TLB, 4K and 2M or 4M pages, 128 entries"),
-CACHE_DESC(CPUID_CACHE_ITLB_256, Lnone, 0, 0, \
- "Instruction TLB, 4K and 2M or 4M pages, 256 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_64, Lnone, 0, 0, \
- "Data TLB, 4K and 4M pages, 64 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_128, Lnone, 0, 0, \
- "Data TLB, 4K and 4M pages, 128 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_256, Lnone, 0, 0, \
- "Data TLB, 4K and 4M pages, 256 entries"),
-CACHE_DESC(CPUID_CACHE_ITLB_128_4, Lnone, 0, 0, \
- "Instruction TLB, 4K pages, 4-way set associative, 128 entries"),
-CACHE_DESC(CPUID_CACHE_DTLB_128_4, Lnone, 0, 0, \
- "Data TLB, 4K pages, 4-way set associative, 128 entries"),
-CACHE_DESC(CPUID_CACHE_ICACHE_8K, L1I, 8*1024, 32, \
- "Instruction L1 cache, 8K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_8K, L1D, 8*1024, 32, \
- "Data L1 cache, 8K, 2-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_ICACHE_16K, L1I, 16*1024, 32, \
- "Instruction L1 cache, 16K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_16K, L1D, 16*1024, 32, \
- "Data L1 cache, 16K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_8K_64, L1D, 8*1024, 64, \
- "Data L1 cache, 8K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_16K_64, L1D, 16*1024, 64, \
- "Data L1 cache, 16K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_32K_64, L1D, 32*1024, 64, \
- "Data L1 cache, 32K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_32K, L1D, 32*1024, 64, \
- "Data L1 cache, 32K, 8-way set assocative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_ICACHE_32K, L1I, 32*1024, 64, \
- "Instruction L1 cache, 32K, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_DCACHE_16K_8, L1D, 16*1024, 64, \
- "Data L1 cache, 16K, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_TRACE_12K, L1I, 12*1024, 64, \
- "Trace cache, 12K-uop, 8-way set associative"),
-CACHE_DESC(CPUID_CACHE_TRACE_16K, L1I, 16*1024, 64, \
- "Trace cache, 16K-uop, 8-way set associative"),
-CACHE_DESC(CPUID_CACHE_TRACE_32K, L1I, 32*1024, 64, \
- "Trace cache, 32K-uop, 8-way set associative"),
-CACHE_DESC(CPUID_CACHE_UCACHE_128K, L2U, 128*1024, 32, \
- "Unified L2 cache, 128K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_256K, L2U, 128*1024, 32, \
- "Unified L2 cache, 256K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_512K, L2U, 512*1024, 32, \
- "Unified L2 cache, 512K, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_1M, L2U, 1*1024*1024, 32, \
- "Unified L2 cache, 1M, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_2M, L2U, 2*1024*1024, 32, \
- "Unified L2 cache, 2M, 4-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_128K_64, L2U, 128*1024, 64, \
- "Unified L2 cache, 128K, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_256K_64, L2U, 256*1024, 64, \
- "Unified L2 cache, 256K, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_512K_64, L2U, 512*1024, 64, \
- "Unified L2 cache, 512K, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_1M_64, L2U, 1*1024*1024, 64, \
- "Unified L2 cache, 1M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_256K_32, L2U, 256*1024, 32, \
- "Unified L2 cache, 256K, 8-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_512K_32, L2U, 512*1024, 32, \
- "Unified L2 cache, 512K, 8-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_1M_32, L2U, 1*1024*1024, 32, \
- "Unified L2 cache, 1M, 8-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_2M_32, L2U, 2*1024*1024, 32, \
- "Unified L2 cache, 2M, 8-way set associative, 32byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_1M_64_4, L2U, 1*1024*1024, 64, \
- "Unified L2 cache, 1M, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_2M_64, L2U, 2*1024*1024, 64, \
- "Unified L2 cache, 2M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_512K_64_2,L2U, 512*1024, 64, \
- "Unified L2 cache, 512K, 2-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_512K_64_4,L2U, 512*1024, 64, \
- "Unified L2 cache, 512K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_1M_64_8, L2U, 1*1024*1024, 64, \
- "Unified L2 cache, 1M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_128K_S4, L2U, 128*1024, 64, \
- "Unified L2 sectored cache, 128K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_128K_S2, L2U, 128*1024, 64, \
- "Unified L2 sectored cache, 128K, 2-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_UCACHE_256K_S4, L2U, 256*1024, 64, \
- "Unified L2 sectored cache, 256K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_L3CACHE_512K, L3U, 512*1024, 64, \
- "Unified L3 cache, 512K, 4-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_L3CACHE_1M, L3U, 1*1024*1024, 64, \
- "Unified L3 cache, 1M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_L3CACHE_2M, L3U, 2*1024*1024, 64, \
- "Unified L3 cache, 2M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_L3CACHE_4M, L3U, 4*1024*1024, 64, \
- "Unified L3 cache, 4M, 8-way set associative, 64byte line size"),
-CACHE_DESC(CPUID_CACHE_PREFETCH_64, Lnone, 0, 0, \
- "64-Byte Prefetching"),
-CACHE_DESC(CPUID_CACHE_PREFETCH_128, Lnone, 0, 0, \
- "128-Byte Prefetching"),
-CACHE_DESC(CPUID_CACHE_NOCACHE, Lnone, 0, 0, \
- "No L2 cache or, if valid L2 cache, no L3 cache"),
-CACHE_DESC(CPUID_CACHE_NULL, Lnone, 0, 0, \
- (char *)0),
-};
-static const char * get_intel_model_string( i386_cpu_info_t * info_p )
+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)
{
- /* check for brand id */
- switch(info_p->cpuid_brand) {
- case CPUID_BRAND_UNSUPPORTED:
- /* brand ID not supported; use alternate method. */
- switch(info_p->cpuid_family) {
- case CPUID_FAMILY_486:
- return "Intel 486";
- case CPUID_FAMILY_586:
- return "Intel Pentium";
- case CPUID_FAMILY_686:
- switch(info_p->cpuid_model) {
- case CPUID_MODEL_P6:
- return "Intel Pentium Pro";
- case CPUID_MODEL_PII:
- return "Intel Pentium II";
- case CPUID_MODEL_P65:
- case CPUID_MODEL_P66:
- return "Intel Celeron";
- case CPUID_MODEL_P67:
- case CPUID_MODEL_P68:
- case CPUID_MODEL_P6A:
- case CPUID_MODEL_P6B:
- return "Intel Pentium III";
- case CPUID_MODEL_PM9:
- case CPUID_MODEL_PMD:
- return "Intel Pentium M";
- default:
- return "Unknown Intel P6 Family";
- }
- case CPUID_FAMILY_ITANIUM:
- return "Intel Itanium";
- case CPUID_FAMILY_EXTENDED:
- switch (info_p->cpuid_extfamily) {
- case CPUID_EXTFAMILY_PENTIUM4:
- return "Intel Pentium 4";
- case CPUID_EXTFAMILY_ITANIUM2:
- return "Intel Itanium 2";
- }
- default:
- return "Unknown Intel Family";
- }
- break;
- case CPUID_BRAND_CELERON_1:
- case CPUID_BRAND_CELERON_A:
- case CPUID_BRAND_CELERON_14:
- return "Intel Celeron";
- case CPUID_BRAND_PENTIUM_III_2:
- case CPUID_BRAND_PENTIUM_III_4:
- return "Pentium III";
- case CPUID_BRAND_PIII_XEON:
- if (info_p->cpuid_signature == 0x6B1)
- return "Intel Celeron";
- else
- return "Intel Pentium III Xeon";
- case CPUID_BRAND_PENTIUM_III_M:
- return "Mobile Intel Pentium III-M";
- case CPUID_BRAND_M_CELERON_7:
- case CPUID_BRAND_M_CELERON_F:
- case CPUID_BRAND_M_CELERON_13:
- case CPUID_BRAND_M_CELERON_17:
- return "Mobile Intel Celeron";
- case CPUID_BRAND_PENTIUM4_8:
- case CPUID_BRAND_PENTIUM4_9:
- return "Intel Pentium 4";
- case CPUID_BRAND_XEON:
- return "Intel Xeon";
- case CPUID_BRAND_XEON_MP:
- return "Intel Xeon MP";
- case CPUID_BRAND_PENTIUM4_M:
- if (info_p->cpuid_signature == 0xF13)
- return "Intel Xeon";
- else
- return "Mobile Intel Pentium 4";
- case CPUID_BRAND_CELERON_M:
- return "Intel Celeron M";
- case CPUID_BRAND_PENTIUM_M:
- return "Intel Pentium M";
- case CPUID_BRAND_MOBILE_15:
- case CPUID_BRAND_MOBILE_17:
- return "Mobile Intel";
- }
-
- return "Unknown Intel";
+ 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 void set_intel_cache_info( i386_cpu_info_t * info_p )
+static const char *cache_type_str[LCACHE_MAX] = {
+ "Lnone", "L1I", "L1D", "L2U", "L3U"
+};
+
+/* this function is Intel-specific */
+static void
+cpuid_set_cache_info( i386_cpu_info_t * info_p )
{
uint32_t cpuid_result[4];
- uint32_t l1d_cache_linesize = 0;
+ uint32_t reg[4];
+ uint32_t index;
+ uint32_t linesizes[LCACHE_MAX];
unsigned int i;
unsigned int j;
+ boolean_t cpuid_deterministic_supported = FALSE;
- /* get processor cache descriptor info */
- do_cpuid(2, cpuid_result);
+ 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.
+ */
+ 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;
}
}
- /* decode the descriptors looking for L1/L2/L3 size info */
- for (i = 1; i < sizeof(info_p->cache_info); i++) {
- cpuid_cache_desc_t *descp;
- uint8_t desc = info_p->cache_info[i];
+ /*
+ * Get cache info using leaf 4, the "deterministic cache parameters."
+ * Most processors Mac OS X supports implement this flavor of CPUID.
+ * Loop over each cache on the processor.
+ */
+ cpuid_fn(0, cpuid_result);
+ if (cpuid_result[eax] >= 4)
+ cpuid_deterministic_supported = TRUE;
- if (desc == CPUID_CACHE_NULL)
- continue;
- for (descp = cpuid_cache_desc_tab;
- descp->value != CPUID_CACHE_NULL; descp++) {
- if (descp->value != desc)
- continue;
- info_p->cache_size[descp->type] = descp->size;
- if (descp->type == L2U)
- info_p->cache_linesize = descp->linesize;
- if (descp->type == L1D)
- l1d_cache_linesize = descp->linesize;
+ for (index = 0; cpuid_deterministic_supported; index++) {
+ cache_type_t type = Lnone;
+ uint32_t cache_type;
+ uint32_t cache_level;
+ uint32_t cache_sharing;
+ uint32_t cache_linesize;
+ uint32_t cache_sets;
+ uint32_t cache_associativity;
+ uint32_t cache_size;
+ uint32_t cache_partitions;
+ uint32_t colors;
+
+ reg[eax] = 4; /* cpuid request 4 */
+ reg[ecx] = index; /* index starting at 0 */
+ cpuid(reg);
+ 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 = bitfield32(reg[eax], 7, 5);
+ cache_sharing = bitfield32(reg[eax], 25, 14) + 1;
+ info_p->cpuid_cores_per_package
+ = 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) {
+ case 1:
+ type = cache_type == 1 ? L1D :
+ cache_type == 2 ? L1I :
+ Lnone;
+ break;
+ case 2:
+ type = cache_type == 3 ? L2U :
+ Lnone;
+ break;
+ case 3:
+ type = cache_type == 3 ? L3U :
+ Lnone;
break;
+ default:
+ type = Lnone;
}
- }
- /* For P-IIIs, L2 could be 256k or 512k but we can't tell */
- if (info_p->cache_size[L2U] == 0 &&
- info_p->cpuid_family == 0x6 && info_p->cpuid_model == 0xb) {
- info_p->cache_size[L2U] = 256*1024;
- info_p->cache_linesize = 32;
- }
- /* If we have no L2 cache, use the L1 data cache line size */
- if (info_p->cache_size[L2U] == 0)
- info_p->cache_linesize = l1d_cache_linesize;
-}
+
+ /* The total size of a cache is:
+ * ( linesize * sets * associativity * partitions )
+ */
+ if (type != Lnone) {
+ 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;
-static void set_cpu_intel( i386_cpu_info_t * info_p )
-{
- set_cpu_generic(info_p);
- set_intel_cache_info(info_p);
- info_p->cpuid_model_string = get_intel_model_string(info_p);
-}
+ 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);
-static const char * get_amd_model_string( i386_cpu_info_t * info_p )
-{
- switch (info_p->cpuid_family)
- {
- case CPUID_FAMILY_486:
- switch (info_p->cpuid_model) {
- case CPUID_MODEL_AM486_DX:
- case CPUID_MODEL_AM486_DX2:
- case CPUID_MODEL_AM486_DX2WB:
- case CPUID_MODEL_AM486_DX4:
- case CPUID_MODEL_AM486_DX4WB:
- return "Am486";
- case CPUID_MODEL_AM486_5X86:
- case CPUID_MODEL_AM486_5X86WB:
- return "Am5x86";
- }
- break;
- case CPUID_FAMILY_586:
- switch (info_p->cpuid_model) {
- case CPUID_MODEL_K5M0:
- case CPUID_MODEL_K5M1:
- case CPUID_MODEL_K5M2:
- case CPUID_MODEL_K5M3:
- return "AMD-K5";
- case CPUID_MODEL_K6M6:
- case CPUID_MODEL_K6M7:
- return "AMD-K6";
- case CPUID_MODEL_K6_2:
- return "AMD-K6-2";
- case CPUID_MODEL_K6_III:
- return "AMD-K6-III";
- }
- break;
- case CPUID_FAMILY_686:
- switch (info_p->cpuid_model) {
- case CPUID_MODEL_ATHLON_M1:
- case CPUID_MODEL_ATHLON_M2:
- case CPUID_MODEL_ATHLON_M4:
- case CPUID_MODEL_ATHLON_M6:
- case CPUID_MODEL_ATHLON_M8:
- case CPUID_MODEL_ATHLON_M10:
- return "AMD Athlon";
- case CPUID_MODEL_DURON_M3:
- case CPUID_MODEL_DURON_M7:
- return "AMD Duron";
- default:
- return "Unknown AMD Athlon";
- }
- case CPUID_FAMILY_EXTENDED:
- switch (info_p->cpuid_model) {
- case CPUID_MODEL_ATHLON64:
- return "AMD Athlon 64";
- case CPUID_MODEL_OPTERON:
- return "AMD Opteron";
- default:
- return "Unknown AMD-64";
- }
- }
- return "Unknown AMD";
-}
+ /*
+ * Overwrite associativity determined via
+ * CPUID.0x80000006 -- this leaf is more
+ * accurate
+ */
+ if (type == L2U)
+ info_p->cpuid_cache_L2_associativity = cache_associativity;
-static void set_amd_cache_info( i386_cpu_info_t * info_p )
-{
- uint32_t cpuid_result[4];
+ /* Compute the number of page colors for this cache,
+ * which is:
+ * ( linesize * sets ) / page_size
+ *
+ * To help visualize this, consider two views of a
+ * physical address. To the cache, it is composed
+ * of a line offset, a set selector, and a tag.
+ * To VM, it is composed of a page offset, a page
+ * color, and other bits in the pageframe number:
+ *
+ * +-----------------+---------+--------+
+ * cache: | tag | set | offset |
+ * +-----------------+---------+--------+
+ *
+ * +-----------------+-------+----------+
+ * VM: | don't care | color | pg offset|
+ * +-----------------+-------+----------+
+ *
+ * The color is those bits in (set+offset) not covered
+ * by the page offset.
+ */
+ colors = ( cache_linesize * cache_sets ) >> 12;
+
+ if ( colors > vm_cache_geometry_colors )
+ vm_cache_geometry_colors = colors;
+ }
+ }
+ DBG(" vm_cache_geometry_colors: %d\n", vm_cache_geometry_colors);
+
+ /*
+ * If deterministic cache parameters are not available, use
+ * something else
+ */
+ if (info_p->cpuid_cores_per_package == 0) {
+ info_p->cpuid_cores_per_package = 1;
- /* It would make sense to fill in info_p->cache_info with complete information
- * on the TLBs and data cache associativity, lines, etc, either by mapping
- * to the Intel tags (if possible), or replacing cache_info with a generic
- * mechanism. But right now, nothing makes use of that information (that I know
- * of).
- */
+ /* cpuid define in 1024 quantities */
+ info_p->cache_size[L2U] = info_p->cpuid_cache_size * 1024;
+ info_p->cache_sharing[L2U] = 1;
+ info_p->cache_partitions[L2U] = 1;
- /* L1 Cache and TLB Information */
- do_cpuid(0x80000005, cpuid_result);
-
- /* EAX: TLB Information for 2-Mbyte and 4-MByte Pages */
- /* (ignore) */
-
- /* EBX: TLB Information for 4-Kbyte Pages */
- /* (ignore) */
-
- /* ECX: L1 Data Cache Information */
- info_p->cache_size[L1D] = ((cpuid_result[2] >> 24) & 0xFF) * 1024;
- info_p->cache_linesize = (cpuid_result[2] & 0xFF);
-
- /* EDX: L1 Instruction Cache Information */
- info_p->cache_size[L1I] = ((cpuid_result[3] >> 24) & 0xFF) * 1024;
+ linesizes[L2U] = info_p->cpuid_cache_linesize;
- /* L2 Cache Information */
- do_cpuid(0x80000006, cpuid_result);
-
- /* EAX: L2 TLB Information for 2-Mbyte and 4-Mbyte Pages */
- /* (ignore) */
-
- /* EBX: L2 TLB Information for 4-Kbyte Pages */
- /* (ignore) */
-
- /* ECX: L2 Cache Information */
- info_p->cache_size[L2U] = ((cpuid_result[2] >> 16) & 0xFFFF) * 1024;
- if (info_p->cache_size[L2U] > 0)
- info_p->cache_linesize = cpuid_result[2] & 0xFF;
-}
+ 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);
+ }
+
+ /*
+ * What linesize to publish? We use the L2 linesize if any,
+ * else the L1D.
+ */
+ if ( linesizes[L2U] )
+ info_p->cache_linesize = linesizes[L2U];
+ else if (linesizes[L1D])
+ info_p->cache_linesize = linesizes[L1D];
+ else panic("no linesize");
+ DBG(" cache_linesize : %d\n", info_p->cache_linesize);
-static void set_cpu_amd( i386_cpu_info_t * info_p )
-{
- set_cpu_generic(info_p);
- set_amd_cache_info(info_p);
- info_p->cpuid_model_string = get_amd_model_string(info_p);
-}
+ /*
+ * 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++) {
+ cpuid_cache_descriptor_t *descp;
+ int id;
+ int level;
+ int page;
-static void set_cpu_nsc( i386_cpu_info_t * info_p )
-{
- set_cpu_generic(info_p);
- set_amd_cache_info(info_p);
-
- if (info_p->cpuid_family == CPUID_FAMILY_586 && info_p->cpuid_model == CPUID_MODEL_GX1)
- info_p->cpuid_model_string = "AMD Geode GX1";
- else if (info_p->cpuid_family == CPUID_FAMILY_586 && info_p->cpuid_model == CPUID_MODEL_GX2)
- info_p->cpuid_model_string = "AMD Geode GX";
- else
- info_p->cpuid_model_string = "Unknown National Semiconductor";
+ 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
-set_cpu_generic(i386_cpu_info_t *info_p)
+cpuid_set_generic_info(i386_cpu_info_t *info_p)
{
- uint32_t cpuid_result[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 */
+ 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_result);
- max_extid = cpuid_result[0];
+ 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_result);
- bcopy((char *)cpuid_result, &str[0], 16);
- do_cpuid(0x80000003, cpuid_result);
- bcopy((char *)cpuid_result, &str[16], 16);
- do_cpuid(0x80000004, cpuid_result);
- bcopy((char *)cpuid_result, &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;
}
- strncpy(info_p->cpuid_brand_string,
- p, sizeof(info_p->cpuid_brand_string)-1);
- info_p->cpuid_brand_string[sizeof(info_p->cpuid_brand_string)-1] = '\0';
+ strlcpy(info_p->cpuid_brand_string,
+ p, sizeof(info_p->cpuid_brand_string));
- if (!strcmp(info_p->cpuid_brand_string, CPUID_STRING_UNKNOWN)) {
+ if (!strncmp(info_p->cpuid_brand_string, CPUID_STRING_UNKNOWN,
+ min(sizeof(info_p->cpuid_brand_string),
+ strlen(CPUID_STRING_UNKNOWN) + 1))) {
/*
- * This string means we have a BIOS-programmable brand string,
- * and the BIOS couldn't figure out what sort of CPU we have.
+ * This string means we have a firmware-programmable brand string,
+ * and the firmware couldn't figure out what sort of CPU we have.
*/
info_p->cpuid_brand_string[0] = '\0';
}
}
- /* get processor signature and decode */
- do_cpuid(1, cpuid_result);
- info_p->cpuid_signature = cpuid_result[0];
- info_p->cpuid_stepping = cpuid_result[0] & 0x0f;
- info_p->cpuid_model = (cpuid_result[0] >> 4) & 0x0f;
- info_p->cpuid_family = (cpuid_result[0] >> 8) & 0x0f;
- info_p->cpuid_type = (cpuid_result[0] >> 12) & 0x03;
- info_p->cpuid_extmodel = (cpuid_result[0] >> 16) & 0x0f;
- info_p->cpuid_extfamily = (cpuid_result[0] >> 20) & 0xff;
- info_p->cpuid_brand = cpuid_result[1] & 0xff;
- info_p->cpuid_features = cpuid_result[3];
+ /* Get cache and addressing info. */
+ 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 =
+ bitfield32(reg[eax], 7, 0);
+ info_p->cpuid_address_bits_virtual =
+ bitfield32(reg[eax],15, 8);
+ }
+
+ /*
+ * 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)
+ info_p->cpuid_family += info_p->cpuid_extfamily;
+ if (info_p->cpuid_family == 0x0f || info_p->cpuid_family == 0x06)
+ info_p->cpuid_model += (info_p->cpuid_extmodel << 4);
+
+ if (info_p->cpuid_features & CPUID_FEATURE_HTT)
+ info_p->cpuid_logical_per_package =
+ bitfield32(reg[ebx], 23, 16);
+ else
+ info_p->cpuid_logical_per_package = 1;
+
+ if (info_p->cpuid_max_ext >= 0x80000001) {
+ cpuid_fn(0x80000001, reg);
+ info_p->cpuid_extfeatures =
+ quad(reg[ecx], reg[edx]);
+ }
+
+ 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:
+ */
+ 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;
+ /*
+ * XSAVE Features:
+ */
+ 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) {
+ /*
+ * Leaf7 Features:
+ */
+ cpuid_fn(0x7, reg);
+ info_p->cpuid_leaf7_features = reg[ebx];
+
+ DBG(" Feature Leaf7:\n");
+ DBG(" EBX : 0x%x\n", reg[ebx]);
+ }
return;
}
-static void
-set_cpu_unknown(__unused i386_cpu_info_t *info_p)
+static uint32_t
+cpuid_set_cpufamily(i386_cpu_info_t *info_p)
{
- info_p->cpuid_model_string = "Unknown";
+ 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)
+{
+ i386_cpu_info_t *info_p = &cpuid_cpu_info;
+
+ cpuid_set_generic_info(info_p);
+
+ /* verify we are running on a supported CPU */
+ if ((strncmp(CPUID_VID_INTEL, info_p->cpuid_vendor,
+ min(strlen(CPUID_STRING_UNKNOWN) + 1,
+ sizeof(info_p->cpuid_vendor)))) ||
+ (cpuid_set_cpufamily(info_p) == CPUFAMILY_UNKNOWN))
+ panic("Unsupported CPU");
+ 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);
-static struct {
- uint32_t mask;
+ /*
+ * 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);
+
+ info_p->cpuid_model_string = ""; /* deprecated */
+}
+
+static struct table {
+ uint64_t mask;
const char *name;
-} feature_names[] = {
- {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",},
+} 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_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}
+
+},
+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(uint32_t feature, char *buf, unsigned buf_len)
+static char *
+cpuid_get_names(struct table *map, uint64_t bits, char *buf, unsigned buf_len)
{
- int i;
- int len;
+ size_t len = 0;
char *p = buf;
+ int i;
- for (i = 0; feature_names[i].mask != 0; i++) {
- if ((feature & feature_names[i].mask) == 0)
+ for (i = 0; map[i].mask != 0; i++) {
+ if ((bits & map[i].mask) == 0)
continue;
- if (i > 0)
+ if (len && ((size_t) (p - buf) < (buf_len - 1)))
*p++ = ' ';
- len = min(strlen(feature_names[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_names[i].name, p, len);
+ bcopy(map[i].name, p, len);
p += len;
}
*p = '\0';
return buf;
}
+i386_cpu_info_t *
+cpuid_info(void)
+{
+ /* 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;
+ }
+ return cpuid_cpu_infop;
+}
+
+char *
+cpuid_get_feature_names(uint64_t features, char *buf, unsigned buf_len)
+{
+ return cpuid_get_names(feature_map, features, buf, buf_len);
+}
+
+char *
+cpuid_get_extfeature_names(uint64_t extfeatures, char *buf, unsigned buf_len)
+{
+ return cpuid_get_names(extfeature_map, extfeatures, buf, buf_len);
+}
+
+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);
+}
+
void
cpuid_feature_display(
- const char *header,
- __unused int my_cpu)
+ const char *header)
+{
+ char buf[256];
+
+ 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_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));
+ }
+}
+
+void
+cpuid_extfeature_display(
+ const char *header)
{
char buf[256];
- printf("%s: %s\n", header,
- cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf)));
+ kprintf("%s: %s\n", header,
+ cpuid_get_extfeature_names(cpuid_extfeatures(),
+ buf, sizeof(buf)));
}
void
cpuid_cpu_display(
- const char *header,
- __unused int my_cpu)
+ const char *header)
{
- if (cpuid_cpu_info.cpuid_brand_string[0] != '\0') {
- printf("%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);
}
}
unsigned int
cpuid_family(void)
{
- return cpuid_cpu_info.cpuid_family;
+ return cpuid_info()->cpuid_family;
}
-unsigned int
+uint32_t
+cpuid_cpufamily(void)
+{
+ return cpuid_info()->cpuid_cpufamily;
+}
+
+cpu_type_t
+cpuid_cputype(void)
+{
+ return cpuid_info()->cpuid_cpu_type;
+}
+
+cpu_subtype_t
+cpuid_cpusubtype(void)
+{
+ return cpuid_info()->cpuid_cpu_subtype;
+}
+
+uint64_t
cpuid_features(void)
{
static int checked = 0;
- char fpu_arg[16] = { 0 };
+ char fpu_arg[20] = { 0 };
+
+ (void) cpuid_info();
if (!checked) {
/* check for boot-time fpu limitations */
- if (PE_parse_boot_arg("_fpu", &fpu_arg[0])) {
+ if (PE_parse_boot_argn("_fpu", &fpu_arg[0], sizeof (fpu_arg))) {
printf("limiting fpu features to: %s\n", fpu_arg);
- if (!strncmp("387", fpu_arg, sizeof "387") || !strncmp("mmx", fpu_arg, sizeof "mmx")) {
+ 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);
- } else if (!strncmp("sse", fpu_arg, sizeof "sse")) {
+ 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;
}
-i386_cpu_info_t *
-cpuid_info(void)
+uint64_t
+cpuid_extfeatures(void)
+{
+ return cpuid_info()->cpuid_extfeatures;
+}
+
+uint64_t
+cpuid_leaf7_features(void)
{
- return &cpuid_cpu_info;
+ return cpuid_info()->cpuid_leaf7_features;
}
-/* XXX for temporary compatibility */
-void
-set_cpu_model(void)
+static i386_vmm_info_t *_cpuid_vmm_infop = NULL;
+static i386_vmm_info_t _cpuid_vmm_info;
+
+static void
+cpuid_init_vmm_info(i386_vmm_info_t *info_p)
+{
+ uint32_t reg[4];
+ uint32_t max_vmm_leaf;
+
+ bzero(info_p, sizeof(*info_p));
+
+ if (!cpuid_vmm_present())
+ return;
+
+ 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];
+ }
+
+ 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)
{
- cpuid_get_info(&cpuid_cpu_info);
- cpuid_feature = cpuid_cpu_info.cpuid_features; /* XXX compat */
+ return cpuid_vmm_info()->cpuid_vmm_family;
}
projects / apple / xnu.git / blobdiff