1 /* cpuid.h: Macros to identify the properties of an x86 host. 2 * 3 * This work is licensed under the terms of the GNU GPL, version 2 or later. 4 * See the COPYING file in the top-level directory. 5 */ 6 7 #ifndef QEMU_CPUID_H 8 #define QEMU_CPUID_H 9 10 #ifndef CONFIG_CPUID_H 11 # error "<cpuid.h> is unusable with this compiler" 12 #endif 13 14 #include <cpuid.h> 15 16 /* Cover the uses that we have within qemu. */ 17 /* ??? Irritating that we have the same information in target/i386/. */ 18 19 /* Leaf 1, %edx */ 20 #ifndef bit_CMOV 21 #define bit_CMOV (1 << 15) 22 #endif 23 #ifndef bit_SSE2 24 #define bit_SSE2 (1 << 26) 25 #endif 26 27 /* Leaf 1, %ecx */ 28 #ifndef bit_PCLMUL 29 #define bit_PCLMUL (1 << 1) 30 #endif 31 #ifndef bit_SSE4_1 32 #define bit_SSE4_1 (1 << 19) 33 #endif 34 #ifndef bit_MOVBE 35 #define bit_MOVBE (1 << 22) 36 #endif 37 #ifndef bit_OSXSAVE 38 #define bit_OSXSAVE (1 << 27) 39 #endif 40 #ifndef bit_AVX 41 #define bit_AVX (1 << 28) 42 #endif 43 44 /* Leaf 7, %ebx */ 45 #ifndef bit_BMI 46 #define bit_BMI (1 << 3) 47 #endif 48 #ifndef bit_AVX2 49 #define bit_AVX2 (1 << 5) 50 #endif 51 #ifndef bit_BMI2 52 #define bit_BMI2 (1 << 8) 53 #endif 54 #ifndef bit_AVX512F 55 #define bit_AVX512F (1 << 16) 56 #endif 57 #ifndef bit_AVX512DQ 58 #define bit_AVX512DQ (1 << 17) 59 #endif 60 #ifndef bit_AVX512BW 61 #define bit_AVX512BW (1 << 30) 62 #endif 63 #ifndef bit_AVX512VL 64 #define bit_AVX512VL (1u << 31) 65 #endif 66 67 /* Leaf 7, %ecx */ 68 #ifndef bit_AVX512VBMI2 69 #define bit_AVX512VBMI2 (1 << 6) 70 #endif 71 72 /* Leaf 0x80000001, %ecx */ 73 #ifndef bit_LZCNT 74 #define bit_LZCNT (1 << 5) 75 #endif 76 77 /* 78 * Signatures for different CPU implementations as returned from Leaf 0. 79 */ 80 81 #ifndef signature_INTEL_ecx 82 /* "Genu" "ineI" "ntel" */ 83 #define signature_INTEL_ebx 0x756e6547 84 #define signature_INTEL_edx 0x49656e69 85 #define signature_INTEL_ecx 0x6c65746e 86 #endif 87 88 #ifndef signature_AMD_ecx 89 /* "Auth" "enti" "cAMD" */ 90 #define signature_AMD_ebx 0x68747541 91 #define signature_AMD_edx 0x69746e65 92 #define signature_AMD_ecx 0x444d4163 93 #endif 94 95 static inline unsigned xgetbv_low(unsigned c) 96 { 97 unsigned a, d; 98 asm("xgetbv" : "=a"(a), "=d"(d) : "c"(c)); 99 return a; 100 } 101 102 #endif /* QEMU_CPUID_H */ 103