Re: [PATCH v9 04/30] arm64/fpsimd: Check enable bit for FA64 when saving EFI state

[Mark Brown]

On Thu, Jan 29, 2026 at 04:39:33PM +0000, Alex Bennée wrote:
> Mark Brown <broonie@xxxxxxxxxx> writes:

> > Currently when deciding if we need to save FFR when in streaming mode prior
> > to EFI calls we check if FA64 is supported by the system. Since KVM guest
> > support will mean that FA64 might be enabled and disabled at runtime switch
> > to checking if traps for FA64 are enabled in SMCR_EL1 instead.

> This is conflicting with the now merged 63de2b3859ba1 (arm64/efi: Remove
> unneeded SVE/SME fallback preserve/store handling) so I think this patch
> can now be dropped?

Yes, this should go away in the next rebase.

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