linux-kernel - Re: [PATCH v24 0/6] support reserving crashkernel above 4G on arm64 kdump

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Date:   Sat,  7 May 2022 20:12:09 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     linux-doc@...r.kernel.org, Frank Rowand <frowand.list@...il.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        kexec@...ts.infradead.org, devicetree@...r.kernel.org,
        "H . Peter Anvin" <hpa@...or.com>, Dave Young <dyoung@...hat.com>,
        Zhen Lei <thunder.leizhen@...wei.com>,
        Will Deacon <will@...nel.org>, Ingo Molnar <mingo@...hat.com>,
        Rob Herring <robh+dt@...nel.org>, Baoquan He <bhe@...hat.com>,
        Borislav Petkov <bp@...en8.de>,
        Eric Biederman <ebiederm@...ssion.com>,
        Vivek Goyal <vgoyal@...hat.com>,
        linux-arm-kernel@...ts.infradead.org,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Feng Zhou <zhoufeng.zf@...edance.com>,
        Dave Kleikamp <dave.kleikamp@...cle.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Chen Zhou <dingguo.cz@...group.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        John Donnelly <John.p.donnelly@...cle.com>
Subject: Re: [PATCH v24 0/6] support reserving crashkernel above 4G on arm64 kdump

On Fri, 6 May 2022 19:43:56 +0800, Zhen Lei wrote:
> Changes since [v23]:
> Do two minor updates:
> 1. Change the value of CRASH_ADDR_HIGH_MAX from memblock.current_limit to (PHYS_MASK + 1).
> 2. The 'high' and 'low' are only take effect when crashkernel=X[@offset] does not exist.
>    If the value of crashkernel=X is invalid, the reservation of crash fails, even if 'high'
>    and 'low' are configured correctly.
> 
> [...]

Applied to arm64 (for-next/crashkernel), finally ;). Thanks!

Only patches on top please for the fall-back implementation.

[1/6] kdump: return -ENOENT if required cmdline option does not exist
      https://git.kernel.org/arm64/c/2e5920bb073a
[2/6] arm64: Use insert_resource() to simplify code
      https://git.kernel.org/arm64/c/e6b394425c61
[3/6] arm64: kdump: Reimplement crashkernel=X
      https://git.kernel.org/arm64/c/944a45abfabc
[4/6] of: fdt: Add memory for devices by DT property "linux,usable-memory-range"
      https://git.kernel.org/arm64/c/fb319e77a0e7
[5/6] of: Support more than one crash kernel regions for kexec -s
      https://git.kernel.org/arm64/c/8af6b91f5834
[6/6] docs: kdump: Update the crashkernel description for arm64
      https://git.kernel.org/arm64/c/5832f1ae5060

-- 
Catalin