linux-kernel - Re: [PATCH V2] arm64/mm: Stop using ESR_ELx_FSC

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Message-Id: <171925273632.3100383.7372147341915040294.b4-ty@arm.com>
Date: Mon, 24 Jun 2024 19:12:21 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: linux-arm-kernel@...ts.infradead.org,
	Anshuman Khandual <anshuman.khandual@....com>
Cc: Will Deacon <will@...nel.org>,
	mark.rutland@....com,
	ryan.roberts@....com,
	maz@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] arm64/mm: Stop using ESR_ELx_FSC_TYPE during fault

On Tue, 18 Jun 2024 09:17:03 +0530, Anshuman Khandual wrote:
> Fault status codes at page table level 0, 1, 2 and 3 for access, permission
> and translation faults are architecturally organized in a way, that masking
> out ESR_ELx_FSC_TYPE, fetches Level 0 status code for the respective fault.
> 
> Helpers like esr_fsc_is_[translation|permission|access_flag]_fault() mask
> out ESR_ELx_FSC_TYPE before comparing against corresponding Level 0 status
> code as the kernel does not yet care about the page table level, where in
> the fault really occurred previously.
> 
> [...]

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

[1/1] arm64/mm: Stop using ESR_ELx_FSC_TYPE during fault
      https://git.kernel.org/arm64/c/573611145fcb

-- 
Catalin