On 31/05/2019 02:52, Jan Beulich wrote:
> According to Linux commit 0136611c62 ("optimize hweight64 for x86_64")
> this is a further improvement over the variant using only bitwise
> operations. It's also a slight further code size reduction.
>
> Suggested-by: Andrew Cooper <andrew.coop...@citrix.com>
> Signed-off-by: Jan Beulich <jbeul...@suse.com>This should also include ARM64, which also unconditionally selects HAS_FAST_MULTIPLY in Linux. As for the x86 side of things, Acked-by: Andrew Cooper <andrew.coop...@citrix.com> > > --- a/xen/arch/x86/Kconfig > +++ b/xen/arch/x86/Kconfig > @@ -12,6 +12,7 @@ config X86 > select HAS_CPUFREQ > select HAS_EHCI > select HAS_EX_TABLE > + select HAS_FAST_MULTIPLY > select HAS_GDBSX > select HAS_IOPORTS > select HAS_KEXEC > > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
