5d133dd839
Replace the two uses of asm to expand xgetbv with an inline function. Since one of the two has been using the mnemonic, assume that the comment about "older versions of the assember" is obsolete, as even that is 4 years old. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
/* cpuid.h: Macros to identify the properties of an x86 host.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_CPUID_H
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#define QEMU_CPUID_H
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#ifndef CONFIG_CPUID_H
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# error "<cpuid.h> is unusable with this compiler"
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#endif
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#include <cpuid.h>
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/* Cover the uses that we have within qemu. */
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/* ??? Irritating that we have the same information in target/i386/. */
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/* Leaf 1, %edx */
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#ifndef bit_CMOV
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#define bit_CMOV (1 << 15)
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#endif
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#ifndef bit_SSE2
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#define bit_SSE2 (1 << 26)
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#endif
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/* Leaf 1, %ecx */
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#ifndef bit_SSE4_1
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#define bit_SSE4_1 (1 << 19)
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#endif
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#ifndef bit_MOVBE
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#define bit_MOVBE (1 << 22)
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#endif
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#ifndef bit_OSXSAVE
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#define bit_OSXSAVE (1 << 27)
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#endif
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#ifndef bit_AVX
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#define bit_AVX (1 << 28)
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#endif
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/* Leaf 7, %ebx */
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#ifndef bit_BMI
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#define bit_BMI (1 << 3)
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#endif
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#ifndef bit_AVX2
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#define bit_AVX2 (1 << 5)
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#endif
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#ifndef bit_BMI2
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#define bit_BMI2 (1 << 8)
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#endif
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#ifndef bit_AVX512F
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#define bit_AVX512F (1 << 16)
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#endif
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#ifndef bit_AVX512DQ
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#define bit_AVX512DQ (1 << 17)
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#endif
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#ifndef bit_AVX512BW
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#define bit_AVX512BW (1 << 30)
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#endif
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#ifndef bit_AVX512VL
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#define bit_AVX512VL (1u << 31)
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#endif
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/* Leaf 7, %ecx */
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#ifndef bit_AVX512VBMI2
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#define bit_AVX512VBMI2 (1 << 6)
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#endif
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/* Leaf 0x80000001, %ecx */
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#ifndef bit_LZCNT
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#define bit_LZCNT (1 << 5)
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#endif
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static inline unsigned xgetbv_low(unsigned c)
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{
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unsigned a, d;
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asm("xgetbv" : "=a"(a), "=d"(d) : "c"(c));
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return a;
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}
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#endif /* QEMU_CPUID_H */
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