diff options
| author | Richard Henderson <rth@twiddle.net> | 2017-07-18 18:40:18 -1000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-07-24 12:42:55 +0100 |
| commit | 5dd8990841a9e331d9d4838a116291698208cbb6 (patch) | |
| tree | e2d46bda2138d892ebb1ecc210696d88f739008a /include | |
| parent | df95f1a298a3e16c80293343143dcedbe7978f6c (diff) | |
util: Introduce include/qemu/cpuid.h
Clang 3.9 passes the CONFIG_AVX2_OPT configure test. However, the
supplied <cpuid.h> does not contain the bit_AVX2 define that we use
when detecting whether the routine can be enabled.
Introduce a qemu-specific header that uses the compiler's definition
of __cpuid et al, but supplies any missing bit_* definitions needed.
This avoids introducing any extra ifdefs to util/bufferiszero.c, and
allows quite a few to be removed from tcg/i386/tcg-target.inc.c.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20170719044018.18063-1-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/cpuid.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/qemu/cpuid.h b/include/qemu/cpuid.h new file mode 100644 index 0000000000..69301700bd --- /dev/null +++ b/include/qemu/cpuid.h @@ -0,0 +1,57 @@ +/* cpuid.h: Macros to identify the properties of an x86 host. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef QEMU_CPUID_H +#define QEMU_CPUID_H + +#ifndef CONFIG_CPUID_H +# error "<cpuid.h> is unusable with this compiler" +#endif + +#include <cpuid.h> + +/* Cover the uses that we have within qemu. */ +/* ??? Irritating that we have the same information in target/i386/. */ + +/* Leaf 1, %edx */ +#ifndef bit_CMOV +#define bit_CMOV (1 << 15) +#endif +#ifndef bit_SSE2 +#define bit_SSE2 (1 << 26) +#endif + +/* Leaf 1, %ecx */ +#ifndef bit_SSE4_1 +#define bit_SSE4_1 (1 << 19) +#endif +#ifndef bit_MOVBE +#define bit_MOVBE (1 << 22) +#endif +#ifndef bit_OSXSAVE +#define bit_OSXSAVE (1 << 27) +#endif +#ifndef bit_AVX +#define bit_AVX (1 << 28) +#endif + +/* Leaf 7, %ebx */ +#ifndef bit_BMI +#define bit_BMI (1 << 3) +#endif +#ifndef bit_AVX2 +#define bit_AVX2 (1 << 5) +#endif +#ifndef bit_BMI2 +#define bit_BMI2 (1 << 8) +#endif + +/* Leaf 0x80000001, %ecx */ +#ifndef bit_LZCNT +#define bit_LZCNT (1 << 5) +#endif + +#endif /* QEMU_CPUID_H */ |