linux-kernel - [PATCH V2 0/2] arm64/sysreg: Clean up TCR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250829060215.1086792-1-anshuman.khandual@arm.com>
Date: Fri, 29 Aug 2025 11:32:13 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Mark Brown <broonie@...nel.org>,
	Ryan Roberts <ryan.roberts@....com>,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH V2 0/2] arm64/sysreg: Clean up TCR_EL1 field macros

Currently TCR_EL1 field macros are sprinkled across the arm64 platform code
including KVM implementation. Clean these up via updating required register
filed definitions in tools sysreg format and then subsequently doing all
necessary replacements. TCR_XXX macros are moved from (asm/pgtable-hwdef.h)
into KVM header (asm/kvm_arm.h) for their continued usage in KVM.

The cleanup does not cause any functional change.

This applies on v6.17-rc3

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Marc Zyngier <maz@...nel.org>
Cc: Oliver Upton <oliver.upton@...ux.dev>
Cc: Mark Brown <broonie@...nel.org>
Cc: Ryan Roberts <ryan.roberts@....com>
Cc: kvmarm@...ts.linux.dev
Cc: linux-kernel@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org

Changes in V2:

- Fixed ARM ARM version from 7.B to L.B
- Changed UnsignedEnum into Enum per Mark
- Dropped all TCR_EL1 replacements from KVM code
- Moved existing TCR_XXX macros from (asm/pgtable-hwdef.h) into KVM header
  (asm/kvm_arm.h) for their continued usage
- Dropped patches 3 and 4 which could be done subsequently

Changes in V1:

https://lore.kernel.org/linux-arm-kernel/20250818045759.672408-1-anshuman.khandual@arm.com/

Anshuman Khandual (2):
  arm64/sysreg: Update TCR_EL1 register
  arm64/sysreg: Replace TCR_EL1 field macros

 arch/arm64/include/asm/assembler.h     |   6 +-
 arch/arm64/include/asm/cputype.h       |   2 +-
 arch/arm64/include/asm/kvm_arm.h       |  92 +++++++++++++++++++++++
 arch/arm64/include/asm/mmu_context.h   |   4 +-
 arch/arm64/include/asm/pgtable-hwdef.h | 100 +------------------------
 arch/arm64/include/asm/pgtable-prot.h  |   2 +-
 arch/arm64/include/asm/sysreg.h        |   2 -
 arch/arm64/kernel/cpufeature.c         |   4 +-
 arch/arm64/kernel/pi/map_kernel.c      |   8 +-
 arch/arm64/kernel/vmcore_info.c        |   2 +-
 arch/arm64/mm/proc.S                   |  36 +++++----
 arch/arm64/tools/sysreg                |  52 +++++++++++--
 tools/arch/arm64/include/asm/cputype.h |   2 +-
 13 files changed, 178 insertions(+), 134 deletions(-)

-- 
2.25.1