Re: [PATCH v3] KVM: arm64: Optimize protected mode with FWB and DIC
From: Oliver Upton
Date: Fri Jul 31 2026 - 14:58:02 EST
On Thu, 23 Jul 2026 16:20:02 +0000, Mostafa Saleh wrote:
> KVM opportunistically enables FWB if supported by the system for guest
> VMs, which allows it to elude cache maintenance for data as they are
> forced to be cacheable from stage-2.
> In that case, __clean_dcache_guest_page() will immediately return.
> However in protected mode, before calling __clean_dcache_guest_page()
> it loops over the range and fix_map/unmap it, issuing TLB
> invalidations, dsb() and isb() unnecessarily.
>
> [...]
Applied to next, thanks!
[1/1] KVM: arm64: Optimize protected mode with FWB and DIC
https://git.kernel.org/kvmarm/kvmarm/c/81b2d03f8c86
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Best,
Oliver