[PATCH 1/2] KVM: arm64: Hide FEAT_LS64_ACCDATA from guests

Fuad Tabba fuad.tabba at linux.dev
Fri Oct 23 03:37:47 PDT 2026


Hi Marc,

On Fri, 23 Oct 2026 11:28:17 +0100, Marc Zyngier <maz at kernel.org> wrote:
[...]
> No, I want this fixed by enabling ACCDATA support by default, which is
> what we have *already* promised to userspace, and see the fireworks.
> You can add an arm64.nols64 kernel option if you want, which is
> consistent with what we do for CNTPOFF, NV3, and other extensions that
> depend on FW enabling them.

Will do. v2 will have your patches 3 and 4 from [1] rebased, EnAS0 set
when the guest has LS64_ACCDATA, and an arm64.nols64 option.

Cheers,
/fuad

[1] https://lore.kernel.org/all/20240815125959.2097734-1-maz@kernel.org/



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