Re: [PATCH v4 3/3] KVM: x86/mmu: Add detailed page size stats

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On Mon, Aug 2, 2021 at 9:46 PM Mingwei Zhang <mizhang@xxxxxxxxxx> wrote:
>
> Existing KVM code tracks the number of large pages regardless of their
> sizes. Therefore, when large page of 1GB (or larger) is adopted, the
> information becomes less useful because lpages counts a mix of 1G and 2M
> pages.
>
> So remove the lpages since it is easy for user space to aggregate the info.
> Instead, provide a comprehensive page stats of all sizes from 4K to 512G.

There is no such thing as a 512GiB page, is there? If this is an
attempt at future-proofing, why not go to 256TiB?



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