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| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-05-31 10:22:33 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-06-05 11:01:05 +0200 |
| commit | 433cd6d94a8256af70a5200f236dc8047c3c1468 (patch) | |
| tree | b59045d2633207bab6b7afa142d9bb24f4779d46 /util | |
| parent | b18236897ca15c3db1506d8edb9a191dfe51429c (diff) | |
| download | qemu-433cd6d94a8256af70a5200f236dc8047c3c1468.zip qemu-433cd6d94a8256af70a5200f236dc8047c3c1468.tar.gz qemu-433cd6d94a8256af70a5200f236dc8047c3c1468.tar.bz2 | |
host/i386: assume presence of SSSE3
QEMU now requires an x86-64-v2 host, which has SSSE3 instructions
(notably, PSHUFB which is used by QEMU's AES implementation).
Do not bother checking it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'util')
| -rw-r--r-- | util/cpuinfo-i386.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/util/cpuinfo-i386.c b/util/cpuinfo-i386.c index ca74ef0..6d474a6 100644 --- a/util/cpuinfo-i386.c +++ b/util/cpuinfo-i386.c @@ -38,8 +38,8 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) info |= (c & bit_POPCNT ? CPUINFO_POPCNT : 0); info |= (c & bit_PCLMUL ? CPUINFO_PCLMUL : 0); - /* Our AES support requires PSHUFB as well. */ - info |= ((c & bit_AES) && (c & bit_SSSE3) ? CPUINFO_AES : 0); + /* NOTE: our AES support requires SSSE3 (PSHUFB) as well. */ + info |= (c & bit_AES) ? CPUINFO_AES : 0; /* For AVX features, we must check available and usable. */ if ((c & bit_AVX) && (c & bit_OSXSAVE)) { |