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i386: Helpers to encode cache information consistently
Instead of having a collection of macros that need to be used in complex expressions to build CPUID data, define a CPUCacheInfo struct that can hold information about a given cache. Helper functions will take a CPUCacheInfo struct as input to encode CPUID leaves for a cache. This will help us ensure consistency between cache information CPUID leaves, and make the existing inconsistencies in CPUID info more visible. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Babu Moger <babu.moger@amd.com> Tested-by: Geoffrey McRae <geoff@hostfission.com> Message-Id: <20180510204148.11687-2-babu.moger@amd.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost
parent
0da0fb0628
commit
7e3482f824
2 changed files with 424 additions and 124 deletions
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@ -56,33 +56,240 @@
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#include "disas/capstone.h"
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/* Helpers for building CPUID[2] descriptors: */
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/* Cache topology CPUID constants: */
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struct CPUID2CacheDescriptorInfo {
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enum CacheType type;
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int level;
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int size;
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int line_size;
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int associativity;
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};
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/* CPUID Leaf 2 Descriptors */
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#define KiB 1024
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#define MiB (1024 * 1024)
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#define CPUID_2_L1D_32KB_8WAY_64B 0x2c
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#define CPUID_2_L1I_32KB_8WAY_64B 0x30
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#define CPUID_2_L2_2MB_8WAY_64B 0x7d
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#define CPUID_2_L3_16MB_16WAY_64B 0x4d
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/*
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* Known CPUID 2 cache descriptors.
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* From Intel SDM Volume 2A, CPUID instruction
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*/
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struct CPUID2CacheDescriptorInfo cpuid2_cache_descriptors[] = {
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[0x06] = { .level = 1, .type = ICACHE, .size = 8 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x08] = { .level = 1, .type = ICACHE, .size = 16 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x09] = { .level = 1, .type = ICACHE, .size = 32 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x0A] = { .level = 1, .type = DCACHE, .size = 8 * KiB,
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.associativity = 2, .line_size = 32, },
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[0x0C] = { .level = 1, .type = DCACHE, .size = 16 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x0D] = { .level = 1, .type = DCACHE, .size = 16 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x0E] = { .level = 1, .type = DCACHE, .size = 24 * KiB,
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.associativity = 6, .line_size = 64, },
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[0x1D] = { .level = 2, .type = UNIFIED_CACHE, .size = 128 * KiB,
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.associativity = 2, .line_size = 64, },
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[0x21] = { .level = 2, .type = UNIFIED_CACHE, .size = 256 * KiB,
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.associativity = 8, .line_size = 64, },
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/* lines per sector is not supported cpuid2_cache_descriptor(),
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* so descriptors 0x22, 0x23 are not included
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*/
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[0x24] = { .level = 2, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 16, .line_size = 64, },
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/* lines per sector is not supported cpuid2_cache_descriptor(),
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* so descriptors 0x25, 0x20 are not included
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*/
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[0x2C] = { .level = 1, .type = DCACHE, .size = 32 * KiB,
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.associativity = 8, .line_size = 64, },
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[0x30] = { .level = 1, .type = ICACHE, .size = 32 * KiB,
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.associativity = 8, .line_size = 64, },
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[0x41] = { .level = 2, .type = UNIFIED_CACHE, .size = 128 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x42] = { .level = 2, .type = UNIFIED_CACHE, .size = 256 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x43] = { .level = 2, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 4, .line_size = 32, },
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[0x44] = { .level = 2, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 4, .line_size = 32, },
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[0x45] = { .level = 2, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 4, .line_size = 32, },
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[0x46] = { .level = 3, .type = UNIFIED_CACHE, .size = 4 * MiB,
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.associativity = 4, .line_size = 64, },
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[0x47] = { .level = 3, .type = UNIFIED_CACHE, .size = 8 * MiB,
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.associativity = 8, .line_size = 64, },
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[0x48] = { .level = 2, .type = UNIFIED_CACHE, .size = 3 * MiB,
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.associativity = 12, .line_size = 64, },
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/* Descriptor 0x49 depends on CPU family/model, so it is not included */
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[0x4A] = { .level = 3, .type = UNIFIED_CACHE, .size = 6 * MiB,
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.associativity = 12, .line_size = 64, },
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[0x4B] = { .level = 3, .type = UNIFIED_CACHE, .size = 8 * MiB,
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.associativity = 16, .line_size = 64, },
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[0x4C] = { .level = 3, .type = UNIFIED_CACHE, .size = 12 * MiB,
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.associativity = 12, .line_size = 64, },
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[0x4D] = { .level = 3, .type = UNIFIED_CACHE, .size = 16 * MiB,
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.associativity = 16, .line_size = 64, },
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[0x4E] = { .level = 2, .type = UNIFIED_CACHE, .size = 6 * MiB,
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.associativity = 24, .line_size = 64, },
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[0x60] = { .level = 1, .type = DCACHE, .size = 16 * KiB,
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.associativity = 8, .line_size = 64, },
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[0x66] = { .level = 1, .type = DCACHE, .size = 8 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x67] = { .level = 1, .type = DCACHE, .size = 16 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x68] = { .level = 1, .type = DCACHE, .size = 32 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x78] = { .level = 2, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 4, .line_size = 64, },
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/* lines per sector is not supported cpuid2_cache_descriptor(),
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* so descriptors 0x79, 0x7A, 0x7B, 0x7C are not included.
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*/
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[0x7D] = { .level = 2, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 8, .line_size = 64, },
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[0x7F] = { .level = 2, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 2, .line_size = 64, },
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[0x80] = { .level = 2, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 8, .line_size = 64, },
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[0x82] = { .level = 2, .type = UNIFIED_CACHE, .size = 256 * KiB,
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.associativity = 8, .line_size = 32, },
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[0x83] = { .level = 2, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 8, .line_size = 32, },
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[0x84] = { .level = 2, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 8, .line_size = 32, },
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[0x85] = { .level = 2, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 8, .line_size = 32, },
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[0x86] = { .level = 2, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 4, .line_size = 64, },
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[0x87] = { .level = 2, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 8, .line_size = 64, },
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[0xD0] = { .level = 3, .type = UNIFIED_CACHE, .size = 512 * KiB,
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.associativity = 4, .line_size = 64, },
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[0xD1] = { .level = 3, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 4, .line_size = 64, },
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[0xD2] = { .level = 3, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 4, .line_size = 64, },
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[0xD6] = { .level = 3, .type = UNIFIED_CACHE, .size = 1 * MiB,
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.associativity = 8, .line_size = 64, },
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[0xD7] = { .level = 3, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 8, .line_size = 64, },
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[0xD8] = { .level = 3, .type = UNIFIED_CACHE, .size = 4 * MiB,
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.associativity = 8, .line_size = 64, },
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[0xDC] = { .level = 3, .type = UNIFIED_CACHE, .size = 1.5 * MiB,
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.associativity = 12, .line_size = 64, },
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[0xDD] = { .level = 3, .type = UNIFIED_CACHE, .size = 3 * MiB,
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.associativity = 12, .line_size = 64, },
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[0xDE] = { .level = 3, .type = UNIFIED_CACHE, .size = 6 * MiB,
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.associativity = 12, .line_size = 64, },
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[0xE2] = { .level = 3, .type = UNIFIED_CACHE, .size = 2 * MiB,
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.associativity = 16, .line_size = 64, },
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[0xE3] = { .level = 3, .type = UNIFIED_CACHE, .size = 4 * MiB,
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.associativity = 16, .line_size = 64, },
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[0xE4] = { .level = 3, .type = UNIFIED_CACHE, .size = 8 * MiB,
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.associativity = 16, .line_size = 64, },
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[0xEA] = { .level = 3, .type = UNIFIED_CACHE, .size = 12 * MiB,
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.associativity = 24, .line_size = 64, },
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[0xEB] = { .level = 3, .type = UNIFIED_CACHE, .size = 18 * MiB,
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.associativity = 24, .line_size = 64, },
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[0xEC] = { .level = 3, .type = UNIFIED_CACHE, .size = 24 * MiB,
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.associativity = 24, .line_size = 64, },
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};
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/*
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* "CPUID leaf 2 does not report cache descriptor information,
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* use CPUID leaf 4 to query cache parameters"
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*/
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#define CACHE_DESCRIPTOR_UNAVAILABLE 0xFF
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/*
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* Return a CPUID 2 cache descriptor for a given cache.
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* If no known descriptor is found, return CACHE_DESCRIPTOR_UNAVAILABLE
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*/
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static uint8_t cpuid2_cache_descriptor(CPUCacheInfo *cache)
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{
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int i;
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assert(cache->size > 0);
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assert(cache->level > 0);
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assert(cache->line_size > 0);
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assert(cache->associativity > 0);
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for (i = 0; i < ARRAY_SIZE(cpuid2_cache_descriptors); i++) {
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struct CPUID2CacheDescriptorInfo *d = &cpuid2_cache_descriptors[i];
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if (d->level == cache->level && d->type == cache->type &&
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d->size == cache->size && d->line_size == cache->line_size &&
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d->associativity == cache->associativity) {
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return i;
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}
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}
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return CACHE_DESCRIPTOR_UNAVAILABLE;
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}
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/* CPUID Leaf 4 constants: */
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/* EAX: */
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#define CPUID_4_TYPE_DCACHE 1
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#define CPUID_4_TYPE_ICACHE 2
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#define CPUID_4_TYPE_UNIFIED 3
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#define CACHE_TYPE_D 1
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#define CACHE_TYPE_I 2
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#define CACHE_TYPE_UNIFIED 3
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#define CPUID_4_LEVEL(l) ((l) << 5)
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#define CACHE_LEVEL(l) (l << 5)
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#define CPUID_4_SELF_INIT_LEVEL (1 << 8)
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#define CPUID_4_FULLY_ASSOC (1 << 9)
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#define CACHE_SELF_INIT_LEVEL (1 << 8)
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/* EDX: */
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#define CPUID_4_NO_INVD_SHARING (1 << 0)
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#define CPUID_4_INCLUSIVE (1 << 1)
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#define CPUID_4_COMPLEX_IDX (1 << 2)
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#define CACHE_NO_INVD_SHARING (1 << 0)
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#define CACHE_INCLUSIVE (1 << 1)
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#define CACHE_COMPLEX_IDX (1 << 2)
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/* Encode CacheType for CPUID[4].EAX */
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#define CACHE_TYPE(t) (((t) == DCACHE) ? CACHE_TYPE_D : \
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((t) == ICACHE) ? CACHE_TYPE_I : \
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((t) == UNIFIED_CACHE) ? CACHE_TYPE_UNIFIED : \
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0 /* Invalid value */)
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/* Encode cache info for CPUID[4] */
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static void encode_cache_cpuid4(CPUCacheInfo *cache,
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int num_apic_ids, int num_cores,
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uint32_t *eax, uint32_t *ebx,
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uint32_t *ecx, uint32_t *edx)
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{
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assert(cache->size == cache->line_size * cache->associativity *
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cache->partitions * cache->sets);
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assert(num_apic_ids > 0);
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*eax = CACHE_TYPE(cache->type) |
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CACHE_LEVEL(cache->level) |
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(cache->self_init ? CACHE_SELF_INIT_LEVEL : 0) |
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((num_cores - 1) << 26) |
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((num_apic_ids - 1) << 14);
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assert(cache->line_size > 0);
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assert(cache->partitions > 0);
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assert(cache->associativity > 0);
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/* We don't implement fully-associative caches */
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assert(cache->associativity < cache->sets);
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*ebx = (cache->line_size - 1) |
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((cache->partitions - 1) << 12) |
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((cache->associativity - 1) << 22);
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assert(cache->sets > 0);
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*ecx = cache->sets - 1;
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*edx = (cache->no_invd_sharing ? CACHE_NO_INVD_SHARING : 0) |
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(cache->inclusive ? CACHE_INCLUSIVE : 0) |
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(cache->complex_indexing ? CACHE_COMPLEX_IDX : 0);
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}
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/* Encode cache info for CPUID[0x80000005].ECX or CPUID[0x80000005].EDX */
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static uint32_t encode_cache_cpuid80000005(CPUCacheInfo *cache)
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{
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assert(cache->size % 1024 == 0);
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assert(cache->lines_per_tag > 0);
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assert(cache->associativity > 0);
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assert(cache->line_size > 0);
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return ((cache->size / 1024) << 24) | (cache->associativity << 16) |
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(cache->lines_per_tag << 8) | (cache->line_size);
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}
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#define ASSOC_FULL 0xFF
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@ -100,57 +307,140 @@
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a == ASSOC_FULL ? 0xF : \
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0 /* invalid value */)
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/*
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* Encode cache info for CPUID[0x80000006].ECX and CPUID[0x80000006].EDX
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* @l3 can be NULL.
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*/
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static void encode_cache_cpuid80000006(CPUCacheInfo *l2,
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CPUCacheInfo *l3,
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uint32_t *ecx, uint32_t *edx)
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{
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assert(l2->size % 1024 == 0);
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assert(l2->associativity > 0);
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assert(l2->lines_per_tag > 0);
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assert(l2->line_size > 0);
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*ecx = ((l2->size / 1024) << 16) |
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(AMD_ENC_ASSOC(l2->associativity) << 12) |
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(l2->lines_per_tag << 8) | (l2->line_size);
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if (l3) {
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assert(l3->size % (512 * 1024) == 0);
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assert(l3->associativity > 0);
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assert(l3->lines_per_tag > 0);
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assert(l3->line_size > 0);
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*edx = ((l3->size / (512 * 1024)) << 18) |
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(AMD_ENC_ASSOC(l3->associativity) << 12) |
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(l3->lines_per_tag << 8) | (l3->line_size);
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} else {
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*edx = 0;
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}
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}
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/* Definitions of the hardcoded cache entries we expose: */
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/* L1 data cache: */
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#define L1D_LINE_SIZE 64
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#define L1D_ASSOCIATIVITY 8
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#define L1D_SETS 64
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#define L1D_PARTITIONS 1
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/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
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#define L1D_DESCRIPTOR CPUID_2_L1D_32KB_8WAY_64B
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static CPUCacheInfo l1d_cache = {
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.type = DCACHE,
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.level = 1,
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.size = 32 * KiB,
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.self_init = 1,
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.line_size = 64,
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.associativity = 8,
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.sets = 64,
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.partitions = 1,
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.no_invd_sharing = true,
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};
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/*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
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#define L1D_LINES_PER_TAG 1
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#define L1D_SIZE_KB_AMD 64
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#define L1D_ASSOCIATIVITY_AMD 2
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static CPUCacheInfo l1d_cache_amd = {
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.type = DCACHE,
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.level = 1,
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.size = 64 * KiB,
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.self_init = 1,
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.line_size = 64,
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.associativity = 2,
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.sets = 512,
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.partitions = 1,
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.lines_per_tag = 1,
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.no_invd_sharing = true,
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};
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/* L1 instruction cache: */
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#define L1I_LINE_SIZE 64
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#define L1I_ASSOCIATIVITY 8
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#define L1I_SETS 64
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#define L1I_PARTITIONS 1
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/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
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#define L1I_DESCRIPTOR CPUID_2_L1I_32KB_8WAY_64B
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static CPUCacheInfo l1i_cache = {
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.type = ICACHE,
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.level = 1,
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.size = 32 * KiB,
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.self_init = 1,
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.line_size = 64,
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.associativity = 8,
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.sets = 64,
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.partitions = 1,
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.no_invd_sharing = true,
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};
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/*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
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#define L1I_LINES_PER_TAG 1
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#define L1I_SIZE_KB_AMD 64
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#define L1I_ASSOCIATIVITY_AMD 2
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static CPUCacheInfo l1i_cache_amd = {
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.type = ICACHE,
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.level = 1,
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.size = 64 * KiB,
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.self_init = 1,
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.line_size = 64,
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.associativity = 2,
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.sets = 512,
|
||||
.partitions = 1,
|
||||
.lines_per_tag = 1,
|
||||
.no_invd_sharing = true,
|
||||
};
|
||||
|
||||
/* Level 2 unified cache: */
|
||||
#define L2_LINE_SIZE 64
|
||||
#define L2_ASSOCIATIVITY 16
|
||||
#define L2_SETS 4096
|
||||
#define L2_PARTITIONS 1
|
||||
/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 4MiB */
|
||||
static CPUCacheInfo l2_cache = {
|
||||
.type = UNIFIED_CACHE,
|
||||
.level = 2,
|
||||
.size = 4 * MiB,
|
||||
.self_init = 1,
|
||||
.line_size = 64,
|
||||
.associativity = 16,
|
||||
.sets = 4096,
|
||||
.partitions = 1,
|
||||
.no_invd_sharing = true,
|
||||
};
|
||||
|
||||
/*FIXME: CPUID leaf 2 descriptor is inconsistent with CPUID leaf 4 */
|
||||
#define L2_DESCRIPTOR CPUID_2_L2_2MB_8WAY_64B
|
||||
static CPUCacheInfo l2_cache_cpuid2 = {
|
||||
.type = UNIFIED_CACHE,
|
||||
.level = 2,
|
||||
.size = 2 * MiB,
|
||||
.line_size = 64,
|
||||
.associativity = 8,
|
||||
};
|
||||
|
||||
|
||||
/*FIXME: CPUID leaf 0x80000006 is inconsistent with leaves 2 & 4 */
|
||||
#define L2_LINES_PER_TAG 1
|
||||
#define L2_SIZE_KB_AMD 512
|
||||
static CPUCacheInfo l2_cache_amd = {
|
||||
.type = UNIFIED_CACHE,
|
||||
.level = 2,
|
||||
.size = 512 * KiB,
|
||||
.line_size = 64,
|
||||
.lines_per_tag = 1,
|
||||
.associativity = 16,
|
||||
.sets = 512,
|
||||
.partitions = 1,
|
||||
};
|
||||
|
||||
/* Level 3 unified cache: */
|
||||
#define L3_SIZE_KB 0 /* disabled */
|
||||
#define L3_ASSOCIATIVITY 0 /* disabled */
|
||||
#define L3_LINES_PER_TAG 0 /* disabled */
|
||||
#define L3_LINE_SIZE 0 /* disabled */
|
||||
#define L3_N_LINE_SIZE 64
|
||||
#define L3_N_ASSOCIATIVITY 16
|
||||
#define L3_N_SETS 16384
|
||||
#define L3_N_PARTITIONS 1
|
||||
#define L3_N_DESCRIPTOR CPUID_2_L3_16MB_16WAY_64B
|
||||
#define L3_N_LINES_PER_TAG 1
|
||||
#define L3_N_SIZE_KB_AMD 16384
|
||||
static CPUCacheInfo l3_cache = {
|
||||
.type = UNIFIED_CACHE,
|
||||
.level = 3,
|
||||
.size = 16 * MiB,
|
||||
.line_size = 64,
|
||||
.associativity = 16,
|
||||
.sets = 16384,
|
||||
.partitions = 1,
|
||||
.lines_per_tag = 1,
|
||||
.self_init = true,
|
||||
.inclusive = true,
|
||||
.complex_indexing = true,
|
||||
};
|
||||
|
||||
/* TLB definitions: */
|
||||
|
||||
|
|
@ -3344,85 +3634,53 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
|
|||
if (!cpu->enable_l3_cache) {
|
||||
*ecx = 0;
|
||||
} else {
|
||||
*ecx = L3_N_DESCRIPTOR;
|
||||
*ecx = cpuid2_cache_descriptor(&l3_cache);
|
||||
}
|
||||
*edx = (L1D_DESCRIPTOR << 16) | \
|
||||
(L1I_DESCRIPTOR << 8) | \
|
||||
(L2_DESCRIPTOR);
|
||||
*edx = (cpuid2_cache_descriptor(&l1d_cache) << 16) |
|
||||
(cpuid2_cache_descriptor(&l1i_cache) << 8) |
|
||||
(cpuid2_cache_descriptor(&l2_cache_cpuid2));
|
||||
break;
|
||||
case 4:
|
||||
/* cache info: needed for Core compatibility */
|
||||
if (cpu->cache_info_passthrough) {
|
||||
host_cpuid(index, count, eax, ebx, ecx, edx);
|
||||
/* QEMU gives out its own APIC IDs, never pass down bits 31..26. */
|
||||
*eax &= ~0xFC000000;
|
||||
if ((*eax & 31) && cs->nr_cores > 1) {
|
||||
*eax |= (cs->nr_cores - 1) << 26;
|
||||
}
|
||||
} else {
|
||||
*eax = 0;
|
||||
switch (count) {
|
||||
case 0: /* L1 dcache info */
|
||||
*eax |= CPUID_4_TYPE_DCACHE | \
|
||||
CPUID_4_LEVEL(1) | \
|
||||
CPUID_4_SELF_INIT_LEVEL;
|
||||
*ebx = (L1D_LINE_SIZE - 1) | \
|
||||
((L1D_PARTITIONS - 1) << 12) | \
|
||||
((L1D_ASSOCIATIVITY - 1) << 22);
|
||||
*ecx = L1D_SETS - 1;
|
||||
*edx = CPUID_4_NO_INVD_SHARING;
|
||||
encode_cache_cpuid4(&l1d_cache,
|
||||
1, cs->nr_cores,
|
||||
eax, ebx, ecx, edx);
|
||||
break;
|
||||
case 1: /* L1 icache info */
|
||||
*eax |= CPUID_4_TYPE_ICACHE | \
|
||||
CPUID_4_LEVEL(1) | \
|
||||
CPUID_4_SELF_INIT_LEVEL;
|
||||
*ebx = (L1I_LINE_SIZE - 1) | \
|
||||
((L1I_PARTITIONS - 1) << 12) | \
|
||||
((L1I_ASSOCIATIVITY - 1) << 22);
|
||||
*ecx = L1I_SETS - 1;
|
||||
*edx = CPUID_4_NO_INVD_SHARING;
|
||||
encode_cache_cpuid4(&l1i_cache,
|
||||
1, cs->nr_cores,
|
||||
eax, ebx, ecx, edx);
|
||||
break;
|
||||
case 2: /* L2 cache info */
|
||||
*eax |= CPUID_4_TYPE_UNIFIED | \
|
||||
CPUID_4_LEVEL(2) | \
|
||||
CPUID_4_SELF_INIT_LEVEL;
|
||||
if (cs->nr_threads > 1) {
|
||||
*eax |= (cs->nr_threads - 1) << 14;
|
||||
}
|
||||
*ebx = (L2_LINE_SIZE - 1) | \
|
||||
((L2_PARTITIONS - 1) << 12) | \
|
||||
((L2_ASSOCIATIVITY - 1) << 22);
|
||||
*ecx = L2_SETS - 1;
|
||||
*edx = CPUID_4_NO_INVD_SHARING;
|
||||
encode_cache_cpuid4(&l2_cache,
|
||||
cs->nr_threads, cs->nr_cores,
|
||||
eax, ebx, ecx, edx);
|
||||
break;
|
||||
case 3: /* L3 cache info */
|
||||
if (!cpu->enable_l3_cache) {
|
||||
*eax = 0;
|
||||
*ebx = 0;
|
||||
*ecx = 0;
|
||||
*edx = 0;
|
||||
break;
|
||||
}
|
||||
*eax |= CPUID_4_TYPE_UNIFIED | \
|
||||
CPUID_4_LEVEL(3) | \
|
||||
CPUID_4_SELF_INIT_LEVEL;
|
||||
pkg_offset = apicid_pkg_offset(cs->nr_cores, cs->nr_threads);
|
||||
*eax |= ((1 << pkg_offset) - 1) << 14;
|
||||
*ebx = (L3_N_LINE_SIZE - 1) | \
|
||||
((L3_N_PARTITIONS - 1) << 12) | \
|
||||
((L3_N_ASSOCIATIVITY - 1) << 22);
|
||||
*ecx = L3_N_SETS - 1;
|
||||
*edx = CPUID_4_INCLUSIVE | CPUID_4_COMPLEX_IDX;
|
||||
if (cpu->enable_l3_cache) {
|
||||
encode_cache_cpuid4(&l3_cache,
|
||||
(1 << pkg_offset), cs->nr_cores,
|
||||
eax, ebx, ecx, edx);
|
||||
break;
|
||||
}
|
||||
/* fall through */
|
||||
default: /* end of info */
|
||||
*eax = 0;
|
||||
*ebx = 0;
|
||||
*ecx = 0;
|
||||
*edx = 0;
|
||||
*eax = *ebx = *ecx = *edx = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* QEMU gives out its own APIC IDs, never pass down bits 31..26. */
|
||||
if ((*eax & 31) && cs->nr_cores > 1) {
|
||||
*eax |= (cs->nr_cores - 1) << 26;
|
||||
}
|
||||
break;
|
||||
case 5:
|
||||
/* mwait info: needed for Core compatibility */
|
||||
|
|
@ -3626,10 +3884,8 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
|
|||
(L1_ITLB_2M_ASSOC << 8) | (L1_ITLB_2M_ENTRIES);
|
||||
*ebx = (L1_DTLB_4K_ASSOC << 24) | (L1_DTLB_4K_ENTRIES << 16) | \
|
||||
(L1_ITLB_4K_ASSOC << 8) | (L1_ITLB_4K_ENTRIES);
|
||||
*ecx = (L1D_SIZE_KB_AMD << 24) | (L1D_ASSOCIATIVITY_AMD << 16) | \
|
||||
(L1D_LINES_PER_TAG << 8) | (L1D_LINE_SIZE);
|
||||
*edx = (L1I_SIZE_KB_AMD << 24) | (L1I_ASSOCIATIVITY_AMD << 16) | \
|
||||
(L1I_LINES_PER_TAG << 8) | (L1I_LINE_SIZE);
|
||||
*ecx = encode_cache_cpuid80000005(&l1d_cache_amd);
|
||||
*edx = encode_cache_cpuid80000005(&l1i_cache_amd);
|
||||
break;
|
||||
case 0x80000006:
|
||||
/* cache info (L2 cache) */
|
||||
|
|
@ -3645,18 +3901,9 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
|
|||
(L2_DTLB_4K_ENTRIES << 16) | \
|
||||
(AMD_ENC_ASSOC(L2_ITLB_4K_ASSOC) << 12) | \
|
||||
(L2_ITLB_4K_ENTRIES);
|
||||
*ecx = (L2_SIZE_KB_AMD << 16) | \
|
||||
(AMD_ENC_ASSOC(L2_ASSOCIATIVITY) << 12) | \
|
||||
(L2_LINES_PER_TAG << 8) | (L2_LINE_SIZE);
|
||||
if (!cpu->enable_l3_cache) {
|
||||
*edx = ((L3_SIZE_KB / 512) << 18) | \
|
||||
(AMD_ENC_ASSOC(L3_ASSOCIATIVITY) << 12) | \
|
||||
(L3_LINES_PER_TAG << 8) | (L3_LINE_SIZE);
|
||||
} else {
|
||||
*edx = ((L3_N_SIZE_KB_AMD / 512) << 18) | \
|
||||
(AMD_ENC_ASSOC(L3_N_ASSOCIATIVITY) << 12) | \
|
||||
(L3_N_LINES_PER_TAG << 8) | (L3_N_LINE_SIZE);
|
||||
}
|
||||
encode_cache_cpuid80000006(&l2_cache_amd,
|
||||
cpu->enable_l3_cache ? &l3_cache : NULL,
|
||||
ecx, edx);
|
||||
break;
|
||||
case 0x80000007:
|
||||
*eax = 0;
|
||||
|
|
|
|||
|
|
@ -1045,6 +1045,59 @@ typedef enum TPRAccess {
|
|||
TPR_ACCESS_WRITE,
|
||||
} TPRAccess;
|
||||
|
||||
/* Cache information data structures: */
|
||||
|
||||
enum CacheType {
|
||||
DCACHE,
|
||||
ICACHE,
|
||||
UNIFIED_CACHE
|
||||
};
|
||||
|
||||
typedef struct CPUCacheInfo {
|
||||
enum CacheType type;
|
||||
uint8_t level;
|
||||
/* Size in bytes */
|
||||
uint32_t size;
|
||||
/* Line size, in bytes */
|
||||
uint16_t line_size;
|
||||
/*
|
||||
* Associativity.
|
||||
* Note: representation of fully-associative caches is not implemented
|
||||
*/
|
||||
uint8_t associativity;
|
||||
/* Physical line partitions. CPUID[0x8000001D].EBX, CPUID[4].EBX */
|
||||
uint8_t partitions;
|
||||
/* Number of sets. CPUID[0x8000001D].ECX, CPUID[4].ECX */
|
||||
uint32_t sets;
|
||||
/*
|
||||
* Lines per tag.
|
||||
* AMD-specific: CPUID[0x80000005], CPUID[0x80000006].
|
||||
* (Is this synonym to @partitions?)
|
||||
*/
|
||||
uint8_t lines_per_tag;
|
||||
|
||||
/* Self-initializing cache */
|
||||
bool self_init;
|
||||
/*
|
||||
* WBINVD/INVD is not guaranteed to act upon lower level caches of
|
||||
* non-originating threads sharing this cache.
|
||||
* CPUID[4].EDX[bit 0], CPUID[0x8000001D].EDX[bit 0]
|
||||
*/
|
||||
bool no_invd_sharing;
|
||||
/*
|
||||
* Cache is inclusive of lower cache levels.
|
||||
* CPUID[4].EDX[bit 1], CPUID[0x8000001D].EDX[bit 1].
|
||||
*/
|
||||
bool inclusive;
|
||||
/*
|
||||
* A complex function is used to index the cache, potentially using all
|
||||
* address bits. CPUID[4].EDX[bit 2].
|
||||
*/
|
||||
bool complex_indexing;
|
||||
} CPUCacheInfo;
|
||||
|
||||
|
||||
|
||||
typedef struct CPUX86State {
|
||||
/* standard registers */
|
||||
target_ulong regs[CPU_NB_REGS];
|
||||
|
|
|
|||
Loading…
Reference in a new issue