On Thu, 2023-07-13 at 22:14 +0100, Richard Henderson wrote: > Detect PCLMUL in cpuinfo; implement the accel hooks. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > --- > host/include/i386/host/cpuinfo.h | 1 + > host/include/i386/host/crypto/clmul.h | 187 > ++++++++++++++++++++++++ > host/include/x86_64/host/crypto/clmul.h | 1 + > util/cpuinfo-i386.c | 1 + > 4 files changed, 190 insertions(+) > create mode 100644 host/include/i386/host/crypto/clmul.h > create mode 100644 host/include/x86_64/host/crypto/clmul.h
... > diff --git a/util/cpuinfo-i386.c b/util/cpuinfo-i386.c > index 3a7b7e0ad1..c6f6364826 100644 > --- a/util/cpuinfo-i386.c > +++ b/util/cpuinfo-i386.c > @@ -39,6 +39,7 @@ unsigned __attribute__((constructor)) > cpuinfo_init(void) > info |= (c & bit_SSE4_1 ? CPUINFO_SSE4 : 0); > info |= (c & bit_MOVBE ? CPUINFO_MOVBE : 0); > info |= (c & bit_POPCNT ? CPUINFO_POPCNT : 0); > + info |= (c & bit_PCLMULQDQ ? CPUINFO_PCLMUL : 0); I wanted to give this a try, but my cpuid.h has only bit_VPCLMULQDQ, and I don't see it in [1] either. Where is this supposed to come from? Does qemu/cpuid.h need an update? ... [1] https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/i386/cpuid.h;h=03fd6fc9478e8ef87d0f7191b9f80539e9c3e939;hb=refs/heads/master
