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Date: Wed, 24 Jun 2020 08:21:26 -0700 From: Kees Cook <keescook@...omium.org> To: Ard Biesheuvel <ardb@...nel.org> Cc: Will Deacon <will@...nel.org>, Fangrui Song <maskray@...gle.com>, Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>, Peter Collingbourne <pcc@...gle.com>, James Morse <james.morse@....com>, Borislav Petkov <bp@...e.de>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Russell King <linux@...linux.org.uk>, Masahiro Yamada <masahiroy@...nel.org>, Arvind Sankar <nivedita@...m.mit.edu>, Nick Desaulniers <ndesaulniers@...gle.com>, Nathan Chancellor <natechancellor@...il.com>, Arnd Bergmann <arnd@...db.de>, X86 ML <x86@...nel.org>, clang-built-linux <clang-built-linux@...glegroups.com>, linux-arch <linux-arch@...r.kernel.org>, linux-efi <linux-efi@...r.kernel.org>, Linux ARM <linux-arm-kernel@...ts.infradead.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v3 3/9] efi/libstub: Remove .note.gnu.property On Wed, Jun 24, 2020 at 12:46:32PM +0200, Ard Biesheuvel wrote: > I'm not sure if there is a point to having PAC and/or BTI in the EFI > stub, given that it runs under the control of the firmware, with its > memory mappings and PAC configuration etc. Is BTI being ignored when the firmware runs? -- Kees Cook
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