From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Salter Subject: Re: [PATCH v2 0/2] efi: preserve NEON registers on UEFI services calls Date: Thu, 26 Jun 2014 09:58:07 -0400 Message-ID: <1403791087.755.120.camel@deneb.redhat.com> References: <1403777346-28629-1-git-send-email-ard.biesheuvel@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1403777346-28629-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Ard Biesheuvel Cc: matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, catalin.marinas-5wv7dgnIgG8@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, roy.franz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, olivier.martin-5wv7dgnIgG8@public.gmane.org List-Id: linux-efi@vger.kernel.org On Thu, 2014-06-26 at 12:09 +0200, Ard Biesheuvel wrote: > The current UEFI implementation for arm64 fails to preserve/restore the contents > of the NEON register file, Does the current implementation actually use NEON registers? I know there are some at least, which build with -mgeneral-regs-only to keep gcc from using NEON registers. Not that that means we don't need this. Just curious.