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Sat, 05 Feb 2022 10:27:57 +0000 Date: Sat, 05 Feb 2022 10:27:56 +0000 Message-ID: <87ee4h38wj.wl-maz@kernel.org> From: Marc Zyngier To: Vladimir Murzin Cc: linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, mark.rutland@arm.com, will@kernel.org Subject: Re: [PATCH v2 0/4] arm64: Support of PAuth QARMA3 architected algorithm In-Reply-To: <20220131170654.62381-1-vladimir.murzin@arm.com> References: <20220131170654.62381-1-vladimir.murzin@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: vladimir.murzin@arm.com, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, mark.rutland@arm.com, will@kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220205_022804_561316_99551EFD X-CRM114-Status: GOOD ( 15.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 31 Jan 2022 17:06:50 +0000, Vladimir Murzin wrote: > > QARMA3 is relaxed version of the QARMA5 algorithm which expected to > reduce the latency of calculation while still delivering a suitable > level of security. > > Feature advertised via a new ID fields in ID_AA64ISAR2_EL1 [1], so we > need to teach the kernel to identify this. > > [1] https://developer.arm.com/documentation/ddi0601/2021-12/AArch64-Registers/ID-AA64ISAR2-EL1--AArch64-Instruction-Set-Attribute-Register-2?lang=en > > > Changelog: > > v1 -> v2 > - Removed unintended whitespace change in sysreg.h > - FTR_ALIAS_OPTION_LEN now accounts null terminator > - Extract only APA3 bits from ID_AA64ISAR2_APA3_SHIFT (in > contrast to id_aa64isar1_el1 where both APA and API bits > are extracted) in asm_pointer_auth.h > > Thanks! > > Vladimir Murzin (4): > arm64: cpufeature: Account min_field_value when cheking secondaries > for PAuth > arm64: cpufeature: Warn if mutually exclusive PAuth algorithms > detected > arm64: cpufeature: Mark existing PAuth architected algorithm as QARMA5 > arm64: Add support of PAuth QARMA3 architected algorithm For the series: Reviewed-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel