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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 1/3] x86/pvh-dom0: Remove unnecessary function pointer call from modify_identity_mmio()
On Mon, Jan 21, 2019 at 03:37:19PM +0000, Andrew Cooper wrote: > Function pointer calls are far more expensive in a post-Spectre world, and > this one doesn't need to be. > > No functional change. > > Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx> This isn't a hot path though, so I wouldn't be too concerned about the performance aspect of function pointer calls. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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