From: Mark Brown <broonie@kernel.org>
To: 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>,
Kees Cook <keescook@chromium.org>, 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>
Cc: "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>,
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, Mark Brown <broonie@kernel.org>
Subject: [PATCH v6 30/38] kselftest/arm64: Add framework support for GCS to signal handling tests
Date: Mon, 09 Oct 2023 13:09:04 +0100 [thread overview]
Message-ID: <20231009-arm64-gcs-v6-30-78e55deaa4dd@kernel.org> (raw)
In-Reply-To: <20231009-arm64-gcs-v6-0-78e55deaa4dd@kernel.org>
Teach the framework about the GCS signal context, avoiding warnings on
the unknown context.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
tools/testing/selftests/arm64/signal/testcases/testcases.c | 7 +++++++
tools/testing/selftests/arm64/signal/testcases/testcases.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.c b/tools/testing/selftests/arm64/signal/testcases/testcases.c
index 9f580b55b388..1cd124732be4 100644
--- a/tools/testing/selftests/arm64/signal/testcases/testcases.c
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.c
@@ -209,6 +209,13 @@ bool validate_reserved(ucontext_t *uc, size_t resv_sz, char **err)
zt = (struct zt_context *)head;
new_flags |= ZT_CTX;
break;
+ case GCS_MAGIC:
+ if (flags & GCS_CTX)
+ *err = "Multiple GCS_MAGIC";
+ if (head->size != sizeof(struct gcs_context))
+ *err = "Bad size for gcs_context";
+ new_flags |= GCS_CTX;
+ break;
case EXTRA_MAGIC:
if (flags & EXTRA_CTX)
*err = "Multiple EXTRA_MAGIC";
diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.h b/tools/testing/selftests/arm64/signal/testcases/testcases.h
index a08ab0d6207a..9b2599745c29 100644
--- a/tools/testing/selftests/arm64/signal/testcases/testcases.h
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.h
@@ -19,6 +19,7 @@
#define ZA_CTX (1 << 2)
#define EXTRA_CTX (1 << 3)
#define ZT_CTX (1 << 4)
+#define GCS_CTX (1 << 5)
#define KSFT_BAD_MAGIC 0xdeadbeef
--
2.30.2
next prev parent reply other threads:[~2023-10-09 12:14 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-09 12:08 [PATCH v6 00/38] arm64/gcs: Provide support for GCS in userspace Mark Brown
2023-10-09 12:08 ` [PATCH v6 01/38] arm64/mm: Restructure arch_validate_flags() for extensibility Mark Brown
2023-10-09 12:08 ` [PATCH v6 02/38] prctl: arch-agnostic prctl for shadow stack Mark Brown
2023-10-09 12:08 ` [PATCH v6 03/38] mman: Add map_shadow_stack() flags Mark Brown
2023-10-09 12:08 ` [PATCH v6 04/38] arm64: Document boot requirements for Guarded Control Stacks Mark Brown
2023-10-09 12:08 ` [PATCH v6 05/38] arm64/gcs: Document the ABI " Mark Brown
2023-10-09 12:08 ` [PATCH v6 06/38] arm64/sysreg: Add new system registers for GCS Mark Brown
2023-10-09 12:08 ` [PATCH v6 07/38] arm64/sysreg: Add definitions for architected GCS caps Mark Brown
2023-10-09 12:08 ` [PATCH v6 08/38] arm64/gcs: Add manual encodings of GCS instructions Mark Brown
2023-10-09 12:08 ` [PATCH v6 09/38] arm64/gcs: Provide copy_to_user_gcs() Mark Brown
2023-10-09 12:08 ` [PATCH v6 10/38] arm64/cpufeature: Runtime detection of Guarded Control Stack (GCS) Mark Brown
2023-10-09 12:08 ` [PATCH v6 11/38] arm64/mm: Allocate PIE slots for EL0 guarded control stack Mark Brown
2023-10-09 12:08 ` [PATCH v6 12/38] mm: Define VM_SHADOW_STACK for arm64 when we support GCS Mark Brown
2023-10-09 12:08 ` [PATCH v6 13/38] arm64/mm: Map pages for guarded control stack Mark Brown
2023-10-09 12:08 ` [PATCH v6 14/38] KVM: arm64: Manage GCS registers for guests Mark Brown
2023-10-09 12:08 ` [PATCH v6 15/38] arm64/gcs: Allow GCS usage at EL0 and EL1 Mark Brown
2023-10-09 12:08 ` [PATCH v6 16/38] arm64/idreg: Add overrride for GCS Mark Brown
2023-10-09 12:08 ` [PATCH v6 17/38] arm64/hwcap: Add hwcap " Mark Brown
2023-10-09 12:08 ` [PATCH v6 18/38] arm64/traps: Handle GCS exceptions Mark Brown
2023-10-09 12:08 ` [PATCH v6 19/38] arm64/mm: Handle GCS data aborts Mark Brown
2023-10-09 12:08 ` [PATCH v6 20/38] arm64/gcs: Context switch GCS state for EL0 Mark Brown
2023-10-09 12:08 ` [PATCH v6 21/38] arm64/gcs: Allocate a new GCS for threads with GCS enabled Mark Brown
2023-10-09 12:08 ` [PATCH v6 22/38] arm64/gcs: Implement shadow stack prctl() interface Mark Brown
2023-10-09 12:08 ` [PATCH v6 23/38] arm64/mm: Implement map_shadow_stack() Mark Brown
2023-10-09 12:08 ` [PATCH v6 24/38] arm64/signal: Set up and restore the GCS context for signal handlers Mark Brown
2023-10-09 12:08 ` [PATCH v6 25/38] arm64/signal: Expose GCS state in signal frames Mark Brown
2023-10-09 12:09 ` [PATCH v6 26/38] arm64/ptrace: Expose GCS via ptrace and core files Mark Brown
2023-10-09 12:09 ` [PATCH v6 27/38] arm64: Add Kconfig for Guarded Control Stack (GCS) Mark Brown
2023-10-09 12:09 ` [PATCH v6 28/38] kselftest/arm64: Verify the GCS hwcap Mark Brown
2023-10-09 12:09 ` [PATCH v6 29/38] kselftest/arm64: Add GCS as a detected feature in the signal tests Mark Brown
2023-10-09 12:09 ` Mark Brown [this message]
2023-10-09 12:09 ` [PATCH v6 31/38] kselftest/arm64: Allow signals tests to specify an expected si_code Mark Brown
2023-10-09 12:09 ` [PATCH v6 32/38] kselftest/arm64: Always run signals tests with GCS enabled Mark Brown
2023-10-09 12:09 ` [PATCH v6 33/38] kselftest/arm64: Add very basic GCS test program Mark Brown
2023-10-09 12:09 ` [PATCH v6 34/38] kselftest/arm64: Add a GCS test program built with the system libc Mark Brown
2023-10-09 12:09 ` [PATCH v6 35/38] kselftest/arm64: Add test coverage for GCS mode locking Mark Brown
2023-10-09 12:09 ` [PATCH v6 36/38] selftests/arm64: Add GCS signal tests Mark Brown
2023-10-09 12:09 ` [PATCH v6 37/38] kselftest/arm64: Add a GCS stress test Mark Brown
2023-10-09 12:09 ` [PATCH v6 38/38] kselftest/arm64: Enable GCS for the FP stress tests Mark Brown
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