Re: [RFC PATCH 00/37] KVM: Refactor the KVM/x86 TDP MMU into common code

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On Thu, 19 Jan 2023 17:14:34 +0000,
David Matlack <dmatlack@xxxxxxxxxx> wrote:
> 
> On Thu, Dec 08, 2022 at 11:38:20AM -0800, David Matlack wrote:
> > 
> > Hello,
> > 
> > This series refactors the KVM/x86 "TDP MMU" into common code. This is
> > the first step toward sharing TDP (aka Stage-2) page table management
> > code across architectures that support KVM.
> 
> Thank you everyone for the feedback on this RFC. I have a couple of
> updates to share and a question at the end.
> 
> First, Alexandre Ghiti from Rivos is going to work on the RISC-V port.
> I'd like to target RISC-V first, since it has significantly lower risk
> and complexity than e.g. ARM (which has pKVM, stage-1 walkers, and
> [soon] nested virtualization to deal with).

And (joy, happiness), the upcoming 128bit page table support[1].

	M.

[1] https://developer.arm.com/documentation/ddi0601/2022-12/AArch64-Registers/TTBR0-EL1--Translation-Table-Base-Register-0--EL1-?lang=en

-- 
Without deviation from the norm, progress is not possible.



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