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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] x86: reduce Meltdown band-aid IPI overhead
On 01/26/2018 12:07 PM, Jan Beulich wrote: > In case we can detect single-threaded guest processes (by checking > whether we can account for all root page table uses locally on the vCPU > that's running), there's no point in issuing a sync IPI upon an L4 entry > update, as no other vCPU of the guest will have that page table loaded. > > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Looks good to me, and I think the summation is pretty clear: Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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