From: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
To: Mark Brown <broonie@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Oleg Nesterov <oleg@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Shuah Khan <shuah@kernel.org>,
"Rick P. Edgecombe" <rick.p.edgecombe@intel.com>,
Deepak Gupta <debug@rivosinc.com>,
Ard Biesheuvel <ardb@kernel.org>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Kees Cook <kees@kernel.org>, "H.J. Lu" <hjl.tools@gmail.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Florian Weimer <fweimer@redhat.com>,
Christian Brauner <brauner@kernel.org>,
Ross Burton <ross.burton@arm.com>,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org,
linux-arch@vger.kernel.org, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
Date: Thu, 18 Jul 2024 19:28:32 -0300 [thread overview]
Message-ID: <87ed7qxrlb.fsf@linaro.org> (raw)
In-Reply-To: <a1ee93ab-2168-4228-a4e8-eab02c046bd3@sirena.org.uk> (Mark Brown's message of "Thu, 18 Jul 2024 17:16:39 +0100")
Mark Brown <broonie@kernel.org> writes:
> On Thu, Jul 18, 2024 at 01:14:41PM -0300, Thiago Jung Bauermann wrote:
>
>> In my FVP VM, this test gets a GCS SIGSEGV before running the first test:
>
> Do you have THP enabled? That still doesn't work (I'm expecting it to
> be fixed with -rc1).
I did have it enabled. After turning it off in the kernel config, the
test does pass. But I see 30 lines of "INVALID GCS" in dmesg while
running it. Is it expected?
--
Thiago
WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
To: Mark Brown <broonie@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Andrew Morton <akpm@linux-foundation.org>,
Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Oleg Nesterov <oleg@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Shuah Khan <shuah@kernel.org>,
"Rick P. Edgecombe" <rick.p.edgecombe@intel.com>,
Deepak Gupta <debug@rivosinc.com>,
Ard Biesheuvel <ardb@kernel.org>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Kees Cook <kees@kernel.org>, "H.J. Lu" <hjl.tools@gmail.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Florian Weimer <fweimer@redhat.com>,
Christian Brauner <brauner@kernel.org>,
Ross Burton <ross.burton@arm.com>,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org,
linux-arch@vger.kernel.org, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Subject: Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
Date: Thu, 18 Jul 2024 19:28:32 -0300 [thread overview]
Message-ID: <87ed7qxrlb.fsf@linaro.org> (raw)
In-Reply-To: <a1ee93ab-2168-4228-a4e8-eab02c046bd3@sirena.org.uk> (Mark Brown's message of "Thu, 18 Jul 2024 17:16:39 +0100")
Mark Brown <broonie@kernel.org> writes:
> On Thu, Jul 18, 2024 at 01:14:41PM -0300, Thiago Jung Bauermann wrote:
>
>> In my FVP VM, this test gets a GCS SIGSEGV before running the first test:
>
> Do you have THP enabled? That still doesn't work (I'm expecting it to
> be fixed with -rc1).
I did have it enabled. After turning it off in the kernel config, the
test does pass. But I see 30 lines of "INVALID GCS" in dmesg while
running it. Is it expected?
--
Thiago
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next prev parent reply other threads:[~2024-07-18 22:28 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-25 14:57 [PATCH v9 00/39] arm64/gcs: Provide support for GCS in userspace Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 01/39] arm64/mm: Restructure arch_validate_flags() for extensibility Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 02/39] prctl: arch-agnostic prctl for shadow stack Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 03/39] mman: Add map_shadow_stack() flags Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 04/39] arm64: Document boot requirements for Guarded Control Stacks Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 05/39] arm64/gcs: Document the ABI " Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 22:51 ` Randy Dunlap
2024-06-25 22:51 ` Randy Dunlap
2024-07-10 10:36 ` Florian Weimer
2024-07-10 10:36 ` Florian Weimer
2024-07-10 18:27 ` Mark Brown
2024-07-10 18:27 ` Mark Brown
2024-07-16 18:50 ` Edgecombe, Rick P
2024-07-16 18:50 ` Edgecombe, Rick P
2024-07-17 15:28 ` Mark Brown
2024-07-17 15:28 ` Mark Brown
2024-07-17 1:21 ` Thiago Jung Bauermann
2024-07-17 1:21 ` Thiago Jung Bauermann
2024-06-25 14:57 ` [PATCH v9 06/39] arm64/sysreg: Add definitions for architected GCS caps Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 07/39] arm64/gcs: Add manual encodings of GCS instructions Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 08/39] arm64/gcs: Provide put_user_gcs() Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 09/39] arm64/cpufeature: Runtime detection of Guarded Control Stack (GCS) Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 10/39] arm64/mm: Allocate PIE slots for EL0 guarded control stack Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 11/39] mm: Define VM_SHADOW_STACK for arm64 when we support GCS Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 12/39] arm64/mm: Map pages for guarded control stack Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 13/39] KVM: arm64: Manage GCS registers for guests Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-07-10 15:17 ` Marc Zyngier
2024-07-10 15:17 ` Marc Zyngier
2024-07-10 17:16 ` Mark Brown
2024-07-10 17:16 ` Mark Brown
2024-07-10 18:28 ` Marc Zyngier
2024-07-10 18:28 ` Marc Zyngier
2024-07-10 22:05 ` Mark Brown
2024-07-10 22:05 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 14/39] arm64/gcs: Allow GCS usage at EL0 and EL1 Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 15/39] arm64/idreg: Add overrride for GCS Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 16/39] arm64/hwcap: Add hwcap " Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 17/39] arm64/traps: Handle GCS exceptions Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 18/39] arm64/mm: Handle GCS data aborts Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 19/39] arm64/gcs: Context switch GCS state for EL0 Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 20/39] arm64/gcs: Ensure that new threads have a GCS Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-07-17 2:05 ` Thiago Jung Bauermann
2024-07-17 2:05 ` Thiago Jung Bauermann
2024-06-25 14:57 ` [PATCH v9 21/39] arm64/gcs: Implement shadow stack prctl() interface Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 22/39] arm64/mm: Implement map_shadow_stack() Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 23/39] arm64/signal: Set up and restore the GCS context for signal handlers Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 24/39] arm64/signal: Expose GCS state in signal frames Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 25/39] arm64/ptrace: Expose GCS via ptrace and core files Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 26/39] arm64: Add Kconfig for Guarded Control Stack (GCS) Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 27/39] kselftest/arm64: Verify the GCS hwcap Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 28/39] kselftest: Provide shadow stack enable helpers for arm64 Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 29/39] selftests/clone3: Enable arm64 shadow stack testing Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 30/39] kselftest/arm64: Add GCS as a detected feature in the signal tests Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:57 ` [PATCH v9 31/39] kselftest/arm64: Add framework support for GCS to signal handling tests Mark Brown
2024-06-25 14:57 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 32/39] kselftest/arm64: Allow signals tests to specify an expected si_code Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 33/39] kselftest/arm64: Always run signals tests with GCS enabled Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 34/39] kselftest/arm64: Add very basic GCS test program Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-07-18 16:14 ` Thiago Jung Bauermann
2024-07-18 16:14 ` Thiago Jung Bauermann
2024-07-18 16:16 ` Mark Brown
2024-07-18 16:16 ` Mark Brown
2024-07-18 22:28 ` Thiago Jung Bauermann [this message]
2024-07-18 22:28 ` Thiago Jung Bauermann
2024-07-22 8:57 ` Mark Brown
2024-07-22 8:57 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 36/39] kselftest/arm64: Add test coverage for GCS mode locking Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 37/39] kselftest/arm64: Add GCS signal tests Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-07-18 23:03 ` Thiago Jung Bauermann
2024-07-18 23:03 ` Thiago Jung Bauermann
2024-06-25 14:58 ` [PATCH v9 38/39] kselftest/arm64: Add a GCS stress test Mark Brown
2024-06-25 14:58 ` Mark Brown
2024-07-18 23:34 ` Thiago Jung Bauermann
2024-07-18 23:34 ` Thiago Jung Bauermann
2024-07-18 23:47 ` Thiago Jung Bauermann
2024-07-18 23:47 ` Thiago Jung Bauermann
2024-07-22 10:08 ` Mark Brown
2024-07-22 10:08 ` Mark Brown
2024-07-22 14:31 ` Mark Brown
2024-07-22 14:31 ` Mark Brown
2024-06-25 14:58 ` [PATCH v9 39/39] kselftest/arm64: Enable GCS for the FP stress tests Mark Brown
2024-06-25 14:58 ` Mark Brown
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