[boot-wrapper PATCH 2/2] aarch64: Enable use of SME by EL2 and below

Mark Rutland mark.rutland at arm.com
Fri Feb 4 02:59:20 PST 2022


On Tue, Feb 01, 2022 at 06:16:58PM +0000, Mark Rutland wrote:
> Hi Mark,
> 
> On Tue, Feb 01, 2022 at 05:21:32PM +0000, broonie at kernel.org wrote:
> > From: Mark Brown <broonie at kernel.org>
> > 
> > Allow lower ELs to use SME when booted on a system that support it. This
> > requires us to set two new bits, one in each of SCR_EL3 and CPTR_EL3, set
> > the maximum vector length in a similar fashion to SVE and if the optional
> > FA64 feature is present then set another feature bit in the new SMCR
> > register.
> 
> This looks good to me. I'll wait a day or so to allow others to review, but if
> no-one shouts I'll apply this (along with patch 1) before the end of the week.

I've applied both patches now.

Thanks,
Mark.



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