Re: [PATCH v7 0/4] KVM: arm64: Improve efficiency of stage2 page table
From: Marc Zyngier
Date: Fri Jun 18 2021 - 07:38:39 EST
On Thu, 17 Jun 2021 18:58:20 +0800, Yanan Wang wrote:
> This series makes some efficiency improvement of guest stage-2 page
> table code, and there are some test results to quantify the benefit.
>
> Description for this series:
> We currently uniformly permorm CMOs of D-cache and I-cache in function
> user_mem_abort before calling the fault handlers. If we get concurrent
> guest faults(e.g. translation faults, permission faults) or some really
> unnecessary guest faults caused by BBM, CMOs for the first vcpu are
> necessary while the others later are not.
>
> [...]
Applied to next, thanks!
[1/4] KVM: arm64: Introduce two cache maintenance callbacks
commit: 6204004de3160900435bdb4b9a2fb8749a9277d2
[2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data
commit: a4d5ca5c7cd8fe85056b8cb838fbcb7e5a05f356
[3/4] KVM: arm64: Tweak parameters of guest cache maintenance functions
commit: 378e6a9c78a02b4b609846aa0afccf34d3038977
[4/4] KVM: arm64: Move guest CMOs to the fault handlers
commit: 25aa28691bb960a76f0cffd8862144a29487f6ff
Cheers,
M.
--
Without deviation from the norm, progress is not possible.