| From: |
| Mark Brown <broonie-AT-kernel.org> |
| To: |
| Catalin Marinas <catalin.marinas-AT-arm.com>, Will Deacon <will-AT-kernel.org>, Jonathan Corbet <corbet-AT-lwn.net>, Marc Zyngier <maz-AT-kernel.org>, Oliver Upton <oliver.upton-AT-linux.dev>, Joey Gouly <joey.gouly-AT-arm.com>, Suzuki K Poulose <suzuki.poulose-AT-arm.com>, Shuah Khan <shuah-AT-kernel.org> |
| Subject: |
| [PATCH v3 0/9] arm64: Support 2024 dpISA extensions |
| Date: |
| Tue, 03 Dec 2024 12:39:19 +0000 |
| Message-ID: |
| <20241203-arm64-2024-dpisa-v3-0-a6c78b1aa297@kernel.org> |
| Cc: |
| linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org, linux-doc-AT-vger.kernel.org, kvmarm-AT-lists.linux.dev, linux-kselftest-AT-vger.kernel.org, Mark Brown <broonie-AT-kernel.org> |
| Archive-link: |
| Article |
The 2024 architecture release includes a number of data processing
extensions, mostly SVE and SME additions with a few others. These are
all very straightforward extensions which add instructions but no
architectural state so only need hwcaps and exposing of the ID registers
to KVM guests and userspace.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
Changes in v3:
- Commit log update for the hwcap test.
- Link to v2: https://lore.kernel.org/r/20241030-arm64-2024-dpisa-v2-0-...
Changes in v2:
- Filter KVM guest visible bitfields in ID_AA64ISAR3_EL1 to only those
we make writeable.
- Link to v1: https://lore.kernel.org/r/20241028-arm64-2024-dpisa-v1-0-...
---
Mark Brown (9):
arm64/sysreg: Update ID_AA64PFR2_EL1 to DDI0601 2024-09
arm64/sysreg: Update ID_AA64ISAR3_EL1 to DDI0601 2024-09
arm64/sysreg: Update ID_AA64FPFR0_EL1 to DDI0601 2024-09
arm64/sysreg: Update ID_AA64ZFR0_EL1 to DDI0601 2024-09
arm64/sysreg: Update ID_AA64SMFR0_EL1 to DDI0601 2024-09
arm64/sysreg: Update ID_AA64ISAR2_EL1 to DDI0601 2024-09
arm64/hwcap: Describe 2024 dpISA extensions to userspace
KVM: arm64: Allow control of dpISA extensions in ID_AA64ISAR3_EL1
kselftest/arm64: Add 2024 dpISA extensions to hwcap test
Documentation/arch/arm64/elf_hwcaps.rst | 51 ++++++
arch/arm64/include/asm/hwcap.h | 17 ++
arch/arm64/include/uapi/asm/hwcap.h | 17 ++
arch/arm64/kernel/cpufeature.c | 35 ++++
arch/arm64/kernel/cpuinfo.c | 17 ++
arch/arm64/kvm/sys_regs.c | 6 +-
arch/arm64/tools/sysreg | 87 +++++++++-
tools/testing/selftests/arm64/abi/hwcap.c | 273 +++++++++++++++++++++++++++++-
8 files changed, 493 insertions(+), 10 deletions(-)
---
base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37
change-id: 20241008-arm64-2024-dpisa-8091074a7f48
Best regards,
--
Mark Brown <broonie@kernel.org>
