Re: [PATCH v3 0/6] arm64: Clean up and simplify PA space size handling

[Will Deacon]

On Thu, 12 Dec 2024 09:18:42 +0100, Ard Biesheuvel wrote:
> This series addresses a number of buglets related to how we handle the
> size of the physical address space when building LPA2 capable kernels:
> 
> - reject 52-bit physical addressess in the mapping routines when LPA2 is
>   configured but not available at runtime
> - ensure that TCR.IPS is not set to 52-bits if LPA2 is not supported
> - ensure that TCR_EL2.PS and DS match the host, regardless of whether
>   LPA2 is available at stage 2
> - don't rely on kvm_get_parange() and invalid physical addresses as
>   control flags in the pKVM page donation APIs
> 
> [...]

Applied to arm64 (for-next/mm), thanks!

[1/6] arm64/mm: Reduce PA space to 48 bits when LPA2 is not enabled
      https://git.kernel.org/arm64/c/bf74bb73cd87
[2/6] arm64/mm: Override PARange for !LPA2 and use it consistently
      https://git.kernel.org/arm64/c/62cffa496aac
[3/6] arm64/kvm: Configure HYP TCR.PS/DS based on host stage1
      https://git.kernel.org/arm64/c/f0da16992aef
[4/6] arm64/kvm: Avoid invalid physical addresses to signal owner updates
      https://git.kernel.org/arm64/c/9d86c3c97434
[5/6] arm64: Kconfig: force ARM64_PAN=y when enabling TTBR0 sw PAN
      https://git.kernel.org/arm64/c/92b6919d7fb2
[6/6] arm64/mm: Drop configurable 48-bit physical address space limit
      https://git.kernel.org/arm64/c/32d053d6f5e9

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev