linux-kernel - Re: [PATCH v9 0/3] riscv: Use PUD/P4D/PGD pages for the linear mapping

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Date:   Wed, 19 Apr 2023 14:30:22 +0000
From:   patchwork-bot+linux-riscv@...nel.org
To:     Alexandre Ghiti <alexghiti@...osinc.com>
Cc:     linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com,
        palmer@...belt.com, aou@...s.berkeley.edu, robh+dt@...nel.org,
        frowand.list@...il.com, ajones@...tanamicro.com,
        anup@...infault.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v9 0/3] riscv: Use PUD/P4D/PGD pages for the linear mapping

Hello:

This series was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@...osinc.com>:

On Fri, 24 Mar 2023 16:54:18 +0100 you wrote:
> This patchset intends to improve tlb utilization by using hugepages for
> the linear mapping.
> 
> As reported by Anup in v6, when STRICT_KERNEL_RWX is enabled, we must
> take care of isolating the kernel text and rodata so that they are not
> mapped with a PUD mapping which would then assign wrong permissions to
> the whole region: it is achieved the same way as arm64 by using the
> memblock nomap API which isolates those regions and re-merge them afterwards
> thus avoiding any issue with the system resources tree creation.
> 
> [...]

Here is the summary with links:
  - [v9,1/3] riscv: Get rid of riscv_pfn_base variable
    https://git.kernel.org/riscv/c/a7407a1318a9
  - [v9,2/3] riscv: Move the linear mapping creation in its own function
    https://git.kernel.org/riscv/c/8589e346bbb6
  - [v9,3/3] riscv: Use PUD/P4D/PGD pages for the linear mapping
    https://git.kernel.org/riscv/c/3335068f8721

You are awesome, thank you!
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