Re: [PATCH v11 17/39] arm64/hwcap: Add hwcap for GCS

[PATCH v11 00/39] arm64/gcs: Provide support for GCS in userspace · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 01/39] mm: Introduce ARCH_HAS_USER_SHADOW_STACK · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 02/39] arm64/mm: Restructure arch_validate_flags() for extensibility · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 03/39] prctl: arch-agnostic prctl for shadow stack · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 04/39] mman: Add map_shadow_stack() flags · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 05/39] arm64: Document boot requirements for Guarded Control Stacks · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 05/39] arm64: Document boot requirements for Guarded Control Stacks · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 06/39] arm64/gcs: Document the ABI for Guarded Control Stacks · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 06/39] arm64/gcs: Document the ABI for Guarded Control Stacks · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 07/39] arm64/sysreg: Add definitions for architected GCS caps · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 08/39] arm64/gcs: Add manual encodings of GCS instructions · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 09/39] arm64/gcs: Provide put_user_gcs() · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 10/39] arm64/gcs: Provide basic EL2 setup to allow GCS usage at EL0 and EL1 · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 11/39] arm64/cpufeature: Runtime detection of Guarded Control Stack (GCS) · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 12/39] arm64/mm: Allocate PIE slots for EL0 guarded control stack · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 13/39] mm: Define VM_SHADOW_STACK for arm64 when we support GCS · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 13/39] mm: Define VM_SHADOW_STACK for arm64 when we support GCS · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 14/39] arm64/mm: Map pages for guarded control stack · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 14/39] arm64/mm: Map pages for guarded control stack · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 15/39] KVM: arm64: Manage GCS access and registers for guests · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 16/39] arm64/idreg: Add overrride for GCS · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 16/39] arm64/idreg: Add overrride for GCS · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 17/39] arm64/hwcap: Add hwcap for GCS · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 17/39] arm64/hwcap: Add hwcap for GCS · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 18/39] arm64/traps: Handle GCS exceptions · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 18/39] arm64/traps: Handle GCS exceptions · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
Re: [PATCH v11 18/39] arm64/traps: Handle GCS exceptions · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
Re: [PATCH v11 18/39] arm64/traps: Handle GCS exceptions · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 19/39] arm64/mm: Handle GCS data aborts · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 19/39] arm64/mm: Handle GCS data aborts · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
Re: [PATCH v11 19/39] arm64/mm: Handle GCS data aborts · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 19/39] arm64/mm: Handle GCS data aborts · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
Re: [PATCH v11 19/39] arm64/mm: Handle GCS data aborts · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 20/39] arm64/gcs: Context switch GCS state for EL0 · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 20/39] arm64/gcs: Context switch GCS state for EL0 · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
[PATCH v11 21/39] arm64/gcs: Ensure that new threads have a GCS · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 21/39] arm64/gcs: Ensure that new threads have a GCS · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-22
Re: [PATCH v11 21/39] arm64/gcs: Ensure that new threads have a GCS · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 22/39] arm64/gcs: Implement shadow stack prctl() interface · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 23/39] arm64/mm: Implement map_shadow_stack() · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 24/39] arm64/signal: Set up and restore the GCS context for signal handlers · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 24/39] arm64/signal: Set up and restore the GCS context for signal handlers · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-23
[PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-23
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Mark Brown <broonie@kernel.org> · 2024-08-23
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-23
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Mark Brown <broonie@kernel.org> · 2024-08-23
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-26
Re: [PATCH v11 25/39] arm64/signal: Expose GCS state in signal frames · Mark Brown <broonie@kernel.org> · 2024-08-28
[PATCH v11 26/39] arm64/ptrace: Expose GCS via ptrace and core files · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 26/39] arm64/ptrace: Expose GCS via ptrace and core files · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-23
[PATCH v11 27/39] arm64: Add Kconfig for Guarded Control Stack (GCS) · Mark Brown <broonie@kernel.org> · 2024-08-22
Re: [PATCH v11 27/39] arm64: Add Kconfig for Guarded Control Stack (GCS) · Catalin Marinas <catalin.marinas@arm.com> · 2024-08-23
[PATCH v11 28/39] kselftest/arm64: Verify the GCS hwcap · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 29/39] kselftest/arm64: Add GCS as a detected feature in the signal tests · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 30/39] kselftest/arm64: Add framework support for GCS to signal handling tests · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 31/39] kselftest/arm64: Allow signals tests to specify an expected si_code · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 32/39] kselftest/arm64: Always run signals tests with GCS enabled · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 33/39] kselftest/arm64: Add very basic GCS test program · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 34/39] kselftest/arm64: Add a GCS test program built with the system libc · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 35/39] kselftest/arm64: Add test coverage for GCS mode locking · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 36/39] kselftest/arm64: Add GCS signal tests · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 37/39] kselftest/arm64: Add a GCS stress test · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 38/39] kselftest/arm64: Enable GCS for the FP stress tests · Mark Brown <broonie@kernel.org> · 2024-08-22
[PATCH v11 39/39] KVM: selftests: arm64: Add GCS registers to get-reg-list · Mark Brown <broonie@kernel.org> · 2024-08-22

From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2024-08-22 11:31:09
Also in: kvmarm, linux-arch, linux-doc, linux-fsdevel, linux-kselftest, linux-mm, linux-riscv, lkml

On Thu, Aug 22, 2024 at 02:15:20AM +0100, Mark Brown wrote:

Provide a hwcap to enable userspace to detect support for GCS.

Reviewed-by: Thiago Jung Bauermann <redacted>
Signed-off-by: Mark Brown <broonie@kernel.org>

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>

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