[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] xen/x86: Improve hypercall page writing
> From: Andrew Cooper [mailto:andrew.cooper3@xxxxxxxxxx] > Sent: Tuesday, December 20, 2016 12:55 AM > > Use memcpy() rather than individual writes with explicit casts. The > __builtin_memcpy() wrapper does a better job at combining adjacent writes into > a larger word size. > > This results in better generated assembly. No functional change. > > Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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