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Relax sanity checking for mismatched AArch32 EL1

Will Deacon kvmarm linux-arm-kernel lkml 2 versions – In review

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Versions newest first · linked by author and title

  1. v2 Latest8 patches 1 replyIn review
  2. v18 patches 23 repliesSuperseded

Patches in v2 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/8arm64: cpufeature: Relax check for IESB supportarch/arm64/kernel/cpufeature.c+1 -10 replies
2/8arm64: cpufeature: Spell out register fields for ID_ISAR4 and ID_PFR1arch/arm64/include/asm/sysreg.h arch/arm64/kernel/cpufeature.c+43 -20 replies
3/8arm64: cpufeature: Add CPU capability for AArch32 EL1 supportarch/arm64/include/asm/cpucaps.h arch/arm64/include/asm/sysreg.h arch/arm64/kernel/cpufeature.c +1 more+17 -110 replies
4/8arm64: cpufeature: Remove redundant call to id_aa64pfr0_32bit_el0()arch/arm64/kernel/cpufeature.c+1 -30 replies
5/8arm64: cpufeature: Factor out checking of AArch32 featuresarch/arm64/kernel/cpufeature.c+65 -470 replies
6/8arm64: cpufeature: Relax AArch32 system checks if EL1 is 64-bit onlyarch/arm64/include/asm/cpufeature.h arch/arm64/kernel/cpufeature.c+39 -10 replies
7/8arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]arch/arm64/kernel/cpufeature.c+3 -70 replies
8/8arm64: cpufeature: Add an overview comment for the cpufeature frameworkarch/arm64/kernel/cpufeature.c+50 -01 reply

Reviews trailers per patch

All 8 patches have a Reviewed-by or Acked-by.

PatchSuzuki K PouloseSai Prakash RanjanMarc Zyngier
1/8R-b
2/8R-b T-b
3/8R-b T-b A-b
4/8R-b T-b
5/8R-b T-b
6/8R-b T-b
7/8R-b T-b
8/8R-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 3 reviewers.

Read the v2 thread

Cover letter [PATCH v2 0/8] Relax sanity checking for mismatched AArch32 EL1

Hi folks,

This is version two of the patches I previously posted here:

	https://lore.kernel.org/lkml/[email protected]/

Changes since v1 include:

* Typo fixes
* Added comment to update_32bit_cpu_features() callsite regarding sanitisation
* Extended comment in final patch to mention KVM
* Add acks/tested-bys

Cheers,

Will

Cc Suzuki K Poulose <[email protected]>
Cc Mark Rutland <[email protected]>
Cc Marc Zyngier <[email protected]>
Cc Anshuman Khandual <[email protected]>
Cc Catalin Marinas <[email protected]>
Cc Sai Prakash Ranjan <[email protected]>
Cc Doug Anderson <[email protected]>

--->8

Sai Prakash Ranjan (1):
arm64: cpufeature: Relax check for IESB support

Will Deacon (7):
arm64: cpufeature: Spell out register fields for ID_ISAR4 and ID_PFR1
arm64: cpufeature: Add CPU capability for AArch32 EL1 support
arm64: cpufeature: Remove redundant call to id_aa64pfr0_32bit_el0()
arm64: cpufeature: Factor out checking of AArch32 features
arm64: cpufeature: Relax AArch32 system checks if EL1 is 64-bit only
arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]
arm64: cpufeature: Add an overview comment for the cpufeature
framework

 arch/arm64/include/asm/cpucaps.h    |   3 +-
 arch/arm64/include/asm/cpufeature.h |   7 +
 arch/arm64/include/asm/sysreg.h     |  18 ++
 arch/arm64/kernel/cpufeature.c      | 247 +++++++++++++++++++++-------
 arch/arm64/kvm/reset.c              |  12 +-
 5 files changed, 217 insertions(+), 70 deletions(-)
Signature · 1 line
2.26.1.301.g55bc3eb7cb9-goog