diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/cpuinfo-aarch64.c | 2 | ||||
| -rw-r--r-- | util/cpuinfo-i386.c | 3 | ||||
| -rw-r--r-- | util/cpuinfo-ppc.c | 64 | ||||
| -rw-r--r-- | util/meson.build | 2 |
4 files changed, 71 insertions, 0 deletions
diff --git a/util/cpuinfo-aarch64.c b/util/cpuinfo-aarch64.c index f99acb7884..ababc39550 100644 --- a/util/cpuinfo-aarch64.c +++ b/util/cpuinfo-aarch64.c @@ -56,10 +56,12 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) unsigned long hwcap = qemu_getauxval(AT_HWCAP); info |= (hwcap & HWCAP_ATOMICS ? CPUINFO_LSE : 0); info |= (hwcap & HWCAP_USCAT ? CPUINFO_LSE2 : 0); + info |= (hwcap & HWCAP_AES ? CPUINFO_AES: 0); #endif #ifdef CONFIG_DARWIN info |= sysctl_for_bool("hw.optional.arm.FEAT_LSE") * CPUINFO_LSE; info |= sysctl_for_bool("hw.optional.arm.FEAT_LSE2") * CPUINFO_LSE2; + info |= sysctl_for_bool("hw.optional.arm.FEAT_AES") * CPUINFO_AES; #endif cpuinfo = info; diff --git a/util/cpuinfo-i386.c b/util/cpuinfo-i386.c index ab6143d9e7..3a7b7e0ad1 100644 --- a/util/cpuinfo-i386.c +++ b/util/cpuinfo-i386.c @@ -40,6 +40,9 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) info |= (c & bit_MOVBE ? CPUINFO_MOVBE : 0); info |= (c & bit_POPCNT ? CPUINFO_POPCNT : 0); + /* Our AES support requires PSHUFB as well. */ + info |= ((c & bit_AES) && (c & bit_SSSE3) ? CPUINFO_AES : 0); + /* For AVX features, we must check available and usable. */ if ((c & bit_AVX) && (c & bit_OSXSAVE)) { unsigned bv = xgetbv_low(0); diff --git a/util/cpuinfo-ppc.c b/util/cpuinfo-ppc.c new file mode 100644 index 0000000000..7212afa45d --- /dev/null +++ b/util/cpuinfo-ppc.c @@ -0,0 +1,64 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Host specific cpu indentification for ppc. + */ + +#include "qemu/osdep.h" +#include "host/cpuinfo.h" + +#ifdef CONFIG_GETAUXVAL +# include <sys/auxv.h> +#else +# include <asm/cputable.h> +# include "elf.h" +#endif + +unsigned cpuinfo; + +/* Called both as constructor and (possibly) via other constructors. */ +unsigned __attribute__((constructor)) cpuinfo_init(void) +{ + unsigned info = cpuinfo; + unsigned long hwcap, hwcap2; + + if (info) { + return info; + } + + hwcap = qemu_getauxval(AT_HWCAP); + hwcap2 = qemu_getauxval(AT_HWCAP2); + info = CPUINFO_ALWAYS; + + /* Version numbers are monotonic, and so imply all lower versions. */ + if (hwcap2 & PPC_FEATURE2_ARCH_3_1) { + info |= CPUINFO_V3_1 | CPUINFO_V3_0 | CPUINFO_V2_07 | CPUINFO_V2_06; + } else if (hwcap2 & PPC_FEATURE2_ARCH_3_00) { + info |= CPUINFO_V3_0 | CPUINFO_V2_07 | CPUINFO_V2_06; + } else if (hwcap2 & PPC_FEATURE2_ARCH_2_07) { + info |= CPUINFO_V2_07 | CPUINFO_V2_06; + } else if (hwcap & PPC_FEATURE_ARCH_2_06) { + info |= CPUINFO_V2_06; + } + + if (hwcap2 & PPC_FEATURE2_HAS_ISEL) { + info |= CPUINFO_ISEL; + } + if (hwcap & PPC_FEATURE_HAS_ALTIVEC) { + info |= CPUINFO_ALTIVEC; + /* We only care about the portion of VSX that overlaps Altivec. */ + if (hwcap & PPC_FEATURE_HAS_VSX) { + info |= CPUINFO_VSX; + /* + * We use VSX especially for little-endian, but we should + * always have both anyway, since VSX came with Power7 + * and crypto came with Power8. + */ + if (hwcap2 & PPC_FEATURE2_HAS_VEC_CRYPTO) { + info |= CPUINFO_CRYPTO; + } + } + } + + cpuinfo = info; + return info; +} diff --git a/util/meson.build b/util/meson.build index 3a93071d27..a375160286 100644 --- a/util/meson.build +++ b/util/meson.build @@ -113,4 +113,6 @@ if cpu == 'aarch64' util_ss.add(files('cpuinfo-aarch64.c')) elif cpu in ['x86', 'x86_64'] util_ss.add(files('cpuinfo-i386.c')) +elif cpu in ['ppc', 'ppc64'] + util_ss.add(files('cpuinfo-ppc.c')) endif |