Re: [PATCH V2] arm64/mm: Fix __enable_mmu() for new TGRAN range values
From: Will Deacon <will@kernel.org>
Date: 2021-03-10 11:40:45
Also in:
kvmarm, linux-efi, lkml
From: Will Deacon <will@kernel.org>
Date: 2021-03-10 11:40:45
Also in:
kvmarm, linux-efi, lkml
On Wed, 10 Mar 2021 11:23:10 +0530, Anshuman Khandual wrote:
As per ARM ARM DDI 0487G.a, when FEAT_LPA2 is implemented, ID_AA64MMFR0_EL1 might contain a range of values to describe supported translation granules (4K and 16K pages sizes in particular) instead of just enabled or disabled values. This changes __enable_mmu() function to handle complete acceptable range of values (depending on whether the field is signed or unsigned) now represented with ID_AA64MMFR0_TGRAN_SUPPORTED_[MIN..MAX] pair. While here, also fix similar situations in EFI stub and KVM as well.
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64/mm: Fix __enable_mmu() for new TGRAN range values
https://git.kernel.org/arm64/c/26f55386f964
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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