mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-04 16:15:11 +00:00
6d75c6f40a
* Reorganise the arm64 kernel VA space and add support for LPA2 (at
stage 1, KVM stage 2 was merged earlier) - 52-bit VA/PA address range
with 4KB and 16KB pages
* Enable Rust on arm64
* Support for the 2023 dpISA extensions (data processing ISA), host only
* arm64 perf updates:
- StarFive's StarLink (integrates one or more CPU cores with a shared
L3 memory system) PMU support
- Enable HiSilicon Erratum 162700402 quirk for HIP09
- Several updates for the HiSilicon PCIe PMU driver
- Arm CoreSight PMU support
- Convert all drivers under drivers/perf/ to use .remove_new()
* Miscellaneous:
- Don't enable workarounds for "rare" errata by default
- Clean up the DAIF flags handling for EL0 returns (in preparation for
NMI support)
- Kselftest update for ptrace()
- Update some of the sysreg field definitions
- Slight improvement in the code generation for inline asm I/O
accessors to permit offset addressing
- kretprobes: acquire regs via a BRK exception (previously done via a
trampoline handler)
- SVE/SME cleanups, comment updates
- Allow CALL_OPS+CC_OPTIMIZE_FOR_SIZE with clang (previously disabled
due to gcc silently ignoring -falign-functions=N)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The major features are support for LPA2 (52-bit VA/PA with 4K and 16K
pages), the dpISA extension and Rust enabled on arm64. The changes are
mostly contained within the usual arch/arm64/, drivers/perf, the arm64
Documentation and kselftests. The exception is the Rust support which
touches some generic build files.
Summary:
- Reorganise the arm64 kernel VA space and add support for LPA2 (at
stage 1, KVM stage 2 was merged earlier) - 52-bit VA/PA address
range with 4KB and 16KB pages
- Enable Rust on arm64
- Support for the 2023 dpISA extensions (data processing ISA), host
only
- arm64 perf updates:
- StarFive's StarLink (integrates one or more CPU cores with a
shared L3 memory system) PMU support
- Enable HiSilicon Erratum 162700402 quirk for HIP09
- Several updates for the HiSilicon PCIe PMU driver
- Arm CoreSight PMU support
- Convert all drivers under drivers/perf/ to use .remove_new()
- Miscellaneous:
- Don't enable workarounds for "rare" errata by default
- Clean up the DAIF flags handling for EL0 returns (in preparation
for NMI support)
- Kselftest update for ptrace()
- Update some of the sysreg field definitions
- Slight improvement in the code generation for inline asm I/O
accessors to permit offset addressing
- kretprobes: acquire regs via a BRK exception (previously done
via a trampoline handler)
- SVE/SME cleanups, comment updates
- Allow CALL_OPS+CC_OPTIMIZE_FOR_SIZE with clang (previously
disabled due to gcc silently ignoring -falign-functions=N)"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (134 commits)
Revert "mm: add arch hook to validate mmap() prot flags"
Revert "arm64: mm: add support for WXN memory translation attribute"
Revert "ARM64: Dynamically allocate cpumasks and increase supported CPUs to 512"
ARM64: Dynamically allocate cpumasks and increase supported CPUs to 512
kselftest/arm64: Add 2023 DPISA hwcap test coverage
kselftest/arm64: Add basic FPMR test
kselftest/arm64: Handle FPMR context in generic signal frame parser
arm64/hwcap: Define hwcaps for 2023 DPISA features
arm64/ptrace: Expose FPMR via ptrace
arm64/signal: Add FPMR signal handling
arm64/fpsimd: Support FEAT_FPMR
arm64/fpsimd: Enable host kernel access to FPMR
arm64/cpufeature: Hook new identification registers up to cpufeature
docs: perf: Fix build warning of hisi-pcie-pmu.rst
perf: starfive: Only allow COMPILE_TEST for 64-bit architectures
MAINTAINERS: Add entry for StarFive StarLink PMU
docs: perf: Add description for StarFive's StarLink PMU
dt-bindings: perf: starfive: Add JH8100 StarLink PMU
perf: starfive: Add StarLink PMU support
docs: perf: Update usage for target filter of hisi-pcie-pmu
...
253 lines
19 KiB
ReStructuredText
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19 KiB
ReStructuredText
=======================================
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Silicon Errata and Software Workarounds
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=======================================
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Author: Will Deacon <will.deacon@arm.com>
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Date : 27 November 2015
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It is an unfortunate fact of life that hardware is often produced with
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so-called "errata", which can cause it to deviate from the architecture
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under specific circumstances. For hardware produced by ARM, these
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errata are broadly classified into the following categories:
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========== ========================================================
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Category A A critical error without a viable workaround.
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Category B A significant or critical error with an acceptable
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workaround.
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Category C A minor error that is not expected to occur under normal
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operation.
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========== ========================================================
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For more information, consult one of the "Software Developers Errata
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Notice" documents available on infocenter.arm.com (registration
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required).
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As far as Linux is concerned, Category B errata may require some special
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treatment in the operating system. For example, avoiding a particular
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sequence of code, or configuring the processor in a particular way. A
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less common situation may require similar actions in order to declassify
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a Category A erratum into a Category C erratum. These are collectively
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known as "software workarounds" and are only required in the minority of
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cases (e.g. those cases that both require a non-secure workaround *and*
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can be triggered by Linux).
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For software workarounds that may adversely impact systems unaffected by
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the erratum in question, a Kconfig entry is added under "Kernel
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Features" -> "ARM errata workarounds via the alternatives framework".
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With the exception of workarounds for errata deemed "rare" by Arm, these
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are enabled by default and patched in at runtime when an affected CPU is
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detected. For less-intrusive workarounds, a Kconfig option is not
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available and the code is structured (preferably with a comment) in such
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a way that the erratum will not be hit.
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This approach can make it slightly onerous to determine exactly which
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errata are worked around in an arbitrary kernel source tree, so this
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file acts as a registry of software workarounds in the Linux Kernel and
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will be updated when new workarounds are committed and backported to
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stable kernels.
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+----------------+-----------------+-----------------+-----------------------------+
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| Implementor | Component | Erratum ID | Kconfig |
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+================+=================+=================+=============================+
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| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Ampere | AmpereOne | AC03_CPU_38 | AMPERE_ERRATUM_AC03_CPU_38 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2457168 | ARM64_ERRATUM_2457168 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #1902691 | ARM64_ERRATUM_1902691 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2051678 | ARM64_ERRATUM_2051678 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2077057 | ARM64_ERRATUM_2077057 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2441009 | ARM64_ERRATUM_2441009 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #2658417 | ARM64_ERRATUM_2658417 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A510 | #3117295 | ARM64_ERRATUM_3117295 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A520 | #2966298 | ARM64_ERRATUM_2966298 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #826319 | ARM64_ERRATUM_826319 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #827319 | ARM64_ERRATUM_827319 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #824069 | ARM64_ERRATUM_824069 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #819472 | ARM64_ERRATUM_819472 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #845719 | ARM64_ERRATUM_845719 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A53 | #843419 | ARM64_ERRATUM_843419 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A55 | #2441007 | ARM64_ERRATUM_2441007 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A57 | #832075 | ARM64_ERRATUM_832075 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A57 | #852523 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A57 | #1319537 | ARM64_ERRATUM_1319367 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A57 | #1742098 | ARM64_ERRATUM_1742098 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A72 | #853709 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A72 | #1319367 | ARM64_ERRATUM_1319367 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A72 | #1655431 | ARM64_ERRATUM_1742098 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A76 | #1188873,1418040| ARM64_ERRATUM_1418040 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A76 | #1165522 | ARM64_ERRATUM_1165522 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A76 | #1286807 | ARM64_ERRATUM_1286807 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A76 | #1490853 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A77 | #1491015 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-A715 | #2645198 | ARM64_ERRATUM_2645198 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-X1 | #1502854 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N1 | #1349291 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N1 | #1490853 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N1 | #1542419 | ARM64_ERRATUM_1542419 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N2 | #2139208 | ARM64_ERRATUM_2139208 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | Neoverse-V1 | #1619801 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-500 | #841119,826419 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-600 | #1076982,1209401| N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | MMU-700 | #2268618,2812531| N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| ARM | GIC-700 | #2941627 | ARM64_ERRATUM_2941627 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_845719 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Broadcom | Brahma-B53 | N/A | ARM64_ERRATUM_843419 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX ITS | #22375,24313 | CAVIUM_ERRATUM_22375 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX ITS | #23144 | CAVIUM_ERRATUM_23144 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX GICv3 | #23154,38545 | CAVIUM_ERRATUM_23154 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX GICv3 | #38539 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX Core | #27456 | CAVIUM_ERRATUM_27456 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX Core | #30115 | CAVIUM_ERRATUM_30115 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX SMMUv2 | #27704 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX2 SMMUv3| #74 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX2 SMMUv3| #126 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Cavium | ThunderX2 Core | #219 | CAVIUM_TX2_ERRATUM_219 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Marvell | ARM-MMU-500 | #582743 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| NVIDIA | Carmel Core | N/A | NVIDIA_CARMEL_CNP_ERRATUM |
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+----------------+-----------------+-----------------+-----------------------------+
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| NVIDIA | T241 GICv3/4.x | T241-FABRIC-4 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Freescale/NXP | LS2080A/LS1043A | A-008585 | FSL_ERRATUM_A008585 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip0{5,6,7} | #161010101 | HISILICON_ERRATUM_161010101 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip0{6,7} | #161010701 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip0{6,7} | #161010803 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip07 | #161600802 | HISILICON_ERRATUM_161600802 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip08 SMMU PMCG | #162001800 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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| Hisilicon | Hip08 SMMU PMCG | #162001900 | N/A |
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| | Hip09 SMMU PMCG | | |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo/Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo/Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Falkor v{1,2} | E1041 | QCOM_FALKOR_ERRATUM_1041 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1463225 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1418040 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1530923 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1024718 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1286807 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Rockchip | RK3588 | #3588001 | ROCKCHIP_ERRATUM_3588001 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Fujitsu | A64FX | E#010001 | FUJITSU_ERRATUM_010001 |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| ASR | ASR8601 | #8601001 | N/A |
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+----------------+-----------------+-----------------+-----------------------------+
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+----------------+-----------------+-----------------+-----------------------------+
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| Microsoft | Azure Cobalt 100| #2139208 | ARM64_ERRATUM_2139208 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Microsoft | Azure Cobalt 100| #2067961 | ARM64_ERRATUM_2067961 |
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+----------------+-----------------+-----------------+-----------------------------+
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| Microsoft | Azure Cobalt 100| #2253138 | ARM64_ERRATUM_2253138 |
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+----------------+-----------------+-----------------+-----------------------------+
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