Re: [PATCH V4 2/2] arm64/sysreg: Replace TCR_EL1 field macros

On 18/09/25 5:38 PM, Will Deacon wrote:

On Sun, Sep 07, 2025 at 06:00:00PM +0530, Anshuman Khandual wrote:

quoted

This just replaces all used TCR_EL1 field macros with tools sysreg variant
based fields and subsequently drops them from the header (pgtable-hwdef.h)
and moves all required macros into KVM header (asm/kvm_arm.h) for continued
usage in KVM.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: kvmarm@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <redacted>
---
Changes in V4:

- Dropped all unused TCR_XXX macros while moving into KVM header

 arch/arm64/include/asm/assembler.h     |  6 +-
 arch/arm64/include/asm/cputype.h       |  2 +-
 arch/arm64/include/asm/kvm_arm.h       | 43 +++++++++++
 arch/arm64/include/asm/mmu_context.h   |  4 +-
 arch/arm64/include/asm/pgtable-hwdef.h | 98 +-------------------------
 arch/arm64/include/asm/pgtable-prot.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 ++++++----
 tools/arch/arm64/include/asm/cputype.h |  2 +-

Please don't mix tools/ patches with arch patches. You probably want to keep
the KVM one separate as well.

Sure, will split these changes in the following order.

- arm64 tool sysreg update for TCR_EL1
- Tools header update for TCR_NFD0/1
- Kernel update
- KVM specific update i.e header macro movement