[PATCH v9 07/13] KVM: guest_memfd: Add flag to remove from direct map

Edgecombe, Rick P rick.p.edgecombe at intel.com
Fri Jan 16 10:10:02 PST 2026


On Fri, 2026-01-16 at 17:51 +0000, Nikita Kalyazin wrote:
> Yes, this is a problem that we'd like to address.  We have been 
> discussing it in [1].  The effect of flushing on memory population
> that we see on x86 is 5-7x elongation.  We are thinking of making use
> of the no-direct-map memory allocator that Brendan is working on [2].

Ah, makes sense.

Do you plan to merge this before the performance problems are
addressed? I guess this series focuses on safety and functionality
first.



More information about the linux-riscv mailing list