Re: [RFC PATCH 00/10] KVM: x86/mmu: simplify argument to kvm page fault handler

From: Paolo Bonzini
Date: Fri Aug 06 2021 - 12:07:18 EST


On 29/07/21 19:24, David Matlack wrote:
On Thu, Jul 29, 2021 at 10:17 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:

On 29/07/21 18:48, David Matlack wrote:
On Thu, Jun 10, 2021 at 3:05 PM Isaku Yamahata <isaku.yamahata@xxxxxxxxx> wrote:

Thanks for feedback. Let me respin it.

Hi Isaku,

I'm working on a series to plumb the memslot backing the faulting gfn
through the page fault handling stack to avoid redundant lookups. This
would be much cleaner to implement on top of your struct
kvm_page_fault series than the existing code.

Are you still planning to send another version of this series? Or if
you have decided to drop it or go in a different direction?

I can work on this and post updated patches next week.

Sounds good. For the record I'm also looking at adding an per-vCPU LRU
slot, which *may* obviate the need to pass around the slot. (Isaku's
series is still a nice cleanup regardless.)

Backport done, but not tested very well yet (and it's scary :)).

Paolo