From: Kristina Martsenko <kristina.martsenko@arm.com> To: linux-arm-kernel@lists.infradead.org Cc: Adam Wallis <awallis@codeaurora.org>, Amit Kachhap <Amit.Kachhap@arm.com>, Andrew Jones <drjones@redhat.com>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Arnd Bergmann <arnd@arndb.de>, Catalin Marinas <catalin.marinas@arm.com>, Christoffer Dall <christoffer.dall@arm.com>, Dave P Martin <Dave.Martin@arm.com>, Jacob Bramley <jacob.bramley@arm.com>, Kees Cook <keescook@chromium.org>, Marc Zyngier <marc.zyngier@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>, "Suzuki K . Poulose" <suzuki.poulose@arm.com>, Will Deacon <will.deacon@arm.com>, kvmarm@lists.cs.columbia.edu, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 10/17] arm64: enable pointer authentication Date: Fri, 5 Oct 2018 09:47:47 +0100 [thread overview] Message-ID: <20181005084754.20950-11-kristina.martsenko@arm.com> (raw) In-Reply-To: <20181005084754.20950-1-kristina.martsenko@arm.com> From: Mark Rutland <mark.rutland@arm.com> Now that all the necessary bits are in place for userspace, add the necessary Kconfig logic to allow this to be enabled. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm64/Kconfig | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..8a6d44160fa8 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1134,6 +1134,29 @@ config ARM64_RAS_EXTN endmenu +menu "ARMv8.3 architectural features" + +config ARM64_PTR_AUTH + bool "Enable support for pointer authentication" + default y + help + Pointer authentication (part of the ARMv8.3 Extensions) provides + instructions for signing and authenticating pointers against secret + keys, which can be used to mitigate Return Oriented Programming (ROP) + and other attacks. + + This option enables these instructions at EL0 (i.e. for userspace). + + Choosing this option will cause the kernel to initialise secret keys + for each process at exec() time, with these keys being + context-switched along with the process. + + The feature is detected at runtime. If the feature is not present in + hardware it will not be advertised to userspace nor will it be + enabled. + +endmenu + config ARM64_SVE bool "ARM Scalable Vector Extension support" default y -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: kristina.martsenko@arm.com (Kristina Martsenko) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 10/17] arm64: enable pointer authentication Date: Fri, 5 Oct 2018 09:47:47 +0100 [thread overview] Message-ID: <20181005084754.20950-11-kristina.martsenko@arm.com> (raw) In-Reply-To: <20181005084754.20950-1-kristina.martsenko@arm.com> From: Mark Rutland <mark.rutland@arm.com> Now that all the necessary bits are in place for userspace, add the necessary Kconfig logic to allow this to be enabled. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm64/Kconfig | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b1a0e95c751..8a6d44160fa8 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1134,6 +1134,29 @@ config ARM64_RAS_EXTN endmenu +menu "ARMv8.3 architectural features" + +config ARM64_PTR_AUTH + bool "Enable support for pointer authentication" + default y + help + Pointer authentication (part of the ARMv8.3 Extensions) provides + instructions for signing and authenticating pointers against secret + keys, which can be used to mitigate Return Oriented Programming (ROP) + and other attacks. + + This option enables these instructions at EL0 (i.e. for userspace). + + Choosing this option will cause the kernel to initialise secret keys + for each process at exec() time, with these keys being + context-switched along with the process. + + The feature is detected at runtime. If the feature is not present in + hardware it will not be advertised to userspace nor will it be + enabled. + +endmenu + config ARM64_SVE bool "ARM Scalable Vector Extension support" default y -- 2.11.0
next prev parent reply other threads:[~2018-10-05 8:50 UTC|newest] Thread overview: 161+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-05 8:47 [PATCH 00/17] ARMv8.3 pointer authentication support Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 01/17] arm64: add pointer authentication register bits Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-11 16:28 ` Will Deacon 2018-10-11 16:28 ` Will Deacon 2018-10-12 8:53 ` Mark Rutland 2018-10-12 8:53 ` Mark Rutland 2018-10-12 8:56 ` Will Deacon 2018-10-12 8:56 ` Will Deacon 2018-10-12 9:50 ` Mark Rutland 2018-10-12 9:50 ` Mark Rutland 2018-10-05 8:47 ` [PATCH v5 02/17] arm64/kvm: consistently handle host HCR_EL2 flags Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 03/17] arm64/kvm: hide ptrauth from guests Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 04/17] arm64: Don't trap host pointer auth use to EL2 Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 05/17] arm64/cpufeature: detect pointer authentication Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 06/17] asm-generic: mm_hooks: allow hooks to be overridden individually Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 07/17] arm64: add basic pointer authentication support Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-11 16:00 ` Suzuki K Poulose 2018-10-11 16:00 ` Suzuki K Poulose 2018-10-19 11:15 ` Catalin Marinas 2018-10-19 11:15 ` Catalin Marinas 2018-10-19 11:15 ` Catalin Marinas 2018-10-19 11:24 ` Will Deacon 2018-10-19 11:24 ` Will Deacon 2018-10-19 15:36 ` Kees Cook 2018-10-19 15:36 ` Kees Cook 2018-10-19 15:36 ` Kees Cook 2018-10-19 15:49 ` Will Deacon 2018-10-19 15:49 ` Will Deacon 2018-10-19 15:49 ` Will Deacon 2018-10-19 16:05 ` Kees Cook 2018-10-19 16:05 ` Kees Cook 2018-10-19 16:05 ` Kees Cook 2018-10-19 16:16 ` Will Deacon 2018-10-19 16:16 ` Will Deacon 2018-10-19 16:16 ` Will Deacon 2018-10-19 15:54 ` Mark Rutland 2018-10-19 15:54 ` Mark Rutland 2018-10-19 15:54 ` Mark Rutland 2018-10-19 16:49 ` Cyrill Gorcunov 2018-10-19 16:49 ` Cyrill Gorcunov 2018-10-19 16:49 ` Cyrill Gorcunov 2018-11-14 18:11 ` Will Deacon 2018-11-14 18:11 ` Will Deacon 2018-11-15 10:25 ` Dave Martin 2018-11-15 10:25 ` Dave Martin 2018-10-23 8:36 ` Ramana Radhakrishnan 2018-10-23 8:36 ` Ramana Radhakrishnan 2018-10-23 8:36 ` Ramana Radhakrishnan 2018-10-23 8:36 ` Ramana Radhakrishnan 2018-10-23 10:20 ` Will Deacon 2018-10-23 10:20 ` Will Deacon 2018-10-23 10:20 ` Will Deacon 2018-10-23 10:20 ` Will Deacon 2018-10-05 8:47 ` [PATCH v5 08/17] arm64: expose user PAC bit positions via ptrace Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 09/17] arm64: perf: strip PAC when unwinding userspace Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko [this message] 2018-10-05 8:47 ` [PATCH v5 10/17] arm64: enable pointer authentication Kristina Martsenko 2018-10-05 8:47 ` [PATCH v5 11/17] arm64: docs: document " Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 9:04 ` Ramana Radhakrishnan 2018-10-05 9:04 ` Ramana Radhakrishnan 2018-10-05 9:04 ` Ramana Radhakrishnan 2018-10-16 16:14 ` Kristina Martsenko 2018-10-16 16:14 ` Kristina Martsenko 2018-10-16 16:14 ` Kristina Martsenko 2018-10-19 11:35 ` Catalin Marinas 2018-10-19 11:35 ` Catalin Marinas 2018-10-19 11:35 ` Catalin Marinas 2018-10-19 11:35 ` Catalin Marinas 2018-10-19 11:47 ` Marc Zyngier 2018-10-19 11:47 ` Marc Zyngier 2018-10-19 11:47 ` Marc Zyngier 2018-10-19 11:47 ` Marc Zyngier 2018-10-19 12:22 ` Will Deacon 2018-10-19 12:22 ` Will Deacon 2018-10-19 12:22 ` Will Deacon 2018-10-19 12:22 ` Will Deacon 2018-10-19 14:42 ` Kristina Martsenko 2018-10-19 14:42 ` Kristina Martsenko 2018-10-19 14:42 ` Kristina Martsenko 2018-10-19 14:42 ` Kristina Martsenko 2018-10-19 15:10 ` Catalin Marinas 2018-10-19 15:10 ` Catalin Marinas 2018-10-19 15:10 ` Catalin Marinas 2018-10-19 15:10 ` Catalin Marinas 2018-10-19 17:45 ` Will Deacon 2018-10-19 17:45 ` Will Deacon 2018-10-19 17:45 ` Will Deacon 2018-10-19 17:45 ` Will Deacon 2018-11-02 6:02 ` Jon Masters 2018-11-02 6:02 ` Jon Masters 2018-11-02 6:02 ` Jon Masters 2018-11-02 6:02 ` Jon Masters 2018-10-24 10:56 ` Ramana Radhakrishnan 2018-10-24 10:56 ` Ramana Radhakrishnan 2018-10-24 10:56 ` Ramana Radhakrishnan 2018-10-15 22:35 ` Kees Cook 2018-10-15 22:35 ` Kees Cook 2018-11-02 9:46 ` Ramana Radhakrishnan 2018-11-02 9:46 ` Ramana Radhakrishnan 2018-11-02 9:46 ` Ramana Radhakrishnan 2018-10-05 8:47 ` [RFC 12/17] arm64: move ptrauth keys to thread_info Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-19 11:38 ` Catalin Marinas 2018-10-19 11:38 ` Catalin Marinas 2018-10-05 8:47 ` [RFC 13/17] arm64: install user ptrauth keys at kernel exit time Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [RFC 14/17] arm64: unwind: strip PAC from kernel addresses Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 8:47 ` [RFC 15/17] arm64: enable ptrauth earlier Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-06 12:51 ` Amit Kachhap 2018-10-06 12:51 ` Amit Kachhap 2018-10-05 8:47 ` [RFC 16/17] arm64: initialize and switch ptrauth kernel keys Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-06 12:56 ` Amit Kachhap 2018-10-06 12:56 ` Amit Kachhap 2018-10-05 8:47 ` [RFC 17/17] arm64: compile the kernel with ptrauth -msign-return-address Kristina Martsenko 2018-10-05 8:47 ` Kristina Martsenko 2018-10-05 9:01 ` Ramana Radhakrishnan 2018-10-05 9:01 ` Ramana Radhakrishnan 2018-10-05 9:01 ` Ramana Radhakrishnan 2018-10-11 14:00 ` Kristina Martsenko 2018-10-11 14:00 ` Kristina Martsenko 2018-10-11 14:00 ` Kristina Martsenko 2018-10-11 14:23 ` Vladimir Murzin 2018-10-11 14:23 ` Vladimir Murzin 2018-10-15 22:38 ` Kees Cook 2018-10-15 22:38 ` Kees Cook 2018-10-15 22:38 ` Kees Cook 2018-10-15 22:42 ` [PATCH 00/17] ARMv8.3 pointer authentication support Kees Cook 2018-10-15 22:42 ` Kees Cook 2018-11-13 16:17 ` Kristina Martsenko 2018-11-13 16:17 ` Kristina Martsenko 2018-11-13 23:09 ` Kees Cook 2018-11-13 23:09 ` Kees Cook 2018-11-14 15:54 ` Kristina Martsenko 2018-11-14 15:54 ` Kristina Martsenko 2018-11-14 21:47 ` Mark Rutland 2018-11-14 21:47 ` Mark Rutland 2018-11-14 22:48 ` Kees Cook 2018-11-14 22:48 ` Kees Cook 2018-11-14 22:48 ` Kees Cook 2018-10-19 12:36 ` Will Deacon 2018-10-19 12:36 ` Will Deacon 2018-10-23 8:39 ` Ramana Radhakrishnan 2018-10-23 8:39 ` Ramana Radhakrishnan 2018-10-23 8:39 ` Ramana Radhakrishnan 2018-10-23 8:39 ` Ramana Radhakrishnan
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20181005084754.20950-11-kristina.martsenko@arm.com \ --to=kristina.martsenko@arm.com \ --cc=Amit.Kachhap@arm.com \ --cc=Dave.Martin@arm.com \ --cc=ard.biesheuvel@linaro.org \ --cc=arnd@arndb.de \ --cc=awallis@codeaurora.org \ --cc=catalin.marinas@arm.com \ --cc=christoffer.dall@arm.com \ --cc=drjones@redhat.com \ --cc=jacob.bramley@arm.com \ --cc=keescook@chromium.org \ --cc=kvmarm@lists.cs.columbia.edu \ --cc=linux-arch@vger.kernel.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=marc.zyngier@arm.com \ --cc=mark.rutland@arm.com \ --cc=ramana.radhakrishnan@arm.com \ --cc=suzuki.poulose@arm.com \ --cc=will.deacon@arm.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.