Re: [RFC PATCH v2 12/26] KVM: arm64: Introduce a Hyp buddy page allocator
From: Quentin Perret <hidden>
Date: 2021-02-04 18:26:07
Also in:
kvmarm, linux-devicetree, lkml
From: Quentin Perret <hidden>
Date: 2021-02-04 18:26:07
Also in:
kvmarm, linux-devicetree, lkml
On Thursday 04 Feb 2021 at 18:13:18 (+0000), Will Deacon wrote:
I was going from memory, but the loop in __hyp_alloc_pages() searches up to HYP_MAX_ORDER, whereas this is _never_ going to succeed beyond some per-pool order determined by the size of the pool. But I doubt it matters -- I thought we did more than just check a list.
Ah, I see -- I was looking at the __hyp_attach_page() loop. I think it's a good point, I should be able to figure out a max order based on the size and alignment of the pool, and cache that in struct hyp_pool to optimize cases where this is < HYP_MAX_ORDER. Should be easy enough, I'll see what I can do in v3. Thanks! Quentin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel