(subset) [PATCH 0/4] Fix racing TLBI with ASID/VMID reallocation

Catalin Marinas catalin.marinas at arm.com
Fri Aug 6 09:04:27 PDT 2021


On Fri, 6 Aug 2021 12:31:03 +0100, Will Deacon wrote:
> While reviewing Shameer's reworked VMID allocator [1] and discussing
> with Marc, we spotted a race between TLB invalidation (which typically
> takes an ASID or VMID argument) and reallocation of ASID/VMID for the
> context being targetted.
> 
> The first patch spells out an example with try_to_unmap_one() in a
> comment, which Catalin has kindly modelled in TLA+ at [2].
> 
> [...]

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

[1/4] arm64: mm: Fix TLBI vs ASID rollover
      https://git.kernel.org/arm64/c/5e10f9887ed8

-- 
Catalin




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