linux-kernel - Re: [PATCH] riscv: move memblock_allow

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Date:   Sun, 11 Jun 2023 07:31:03 +0800
From:   Woody Zhang <woodylab@...mail.com>
To:     Conor Dooley <conor@...nel.org>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Alexandre Ghiti <alexghiti@...osinc.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] riscv: move memblock_allow_resize() after lm is ready

On Sat, Jun 10, 2023 at 04:44:19PM +0100, Conor Dooley wrote:
>On Sat, Jun 10, 2023 at 07:43:20AM +0800, Woody Zhang wrote:
>$subject: "riscv: move memblock_allow_resize() after lm is ready"
>
>s/lm/linear map/ if you resubmit, please.

Thanks, will send a v2.

>
>> The initial memblock metadata is accessed from kernel image mapping. The
>> regions arrays need to "reallocated" from memblock and accessed through
>> linear mapping to cover more memblock regions. So the resizing should
>> not be allowed until linear mapping is ready. Note that there are
>> memblock allocations when building linear mapping.
>> 
>> Signed-off-by: Woody Zhang <woodylab@...mail.com>
>
>What commit does this fix?

Fixes: 671f9a3e2e24 ("RISC-V: Setup initial page tables in two stages")

Will add this tag in v2.

Woody