include/qemu/cpuid.h

   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 */