From: sashiko-bot@kernel.org
To: "George Guo" <dongtai.guo@linux.dev>,
rppt@kernel.org, pasha.tatashin@soleen.com, pratyush@kernel.org,
chenhuacai@kernel.org, ardb@kernel.org, shuah@kernel.org
Cc: ilias.apalodimas@linaro.org, akpm@linux-foundation.org,
baoquan.he@linux.dev, ruirui.yang@linux.dev,
guodongtai@kylinos.cn, kernel@xen0n.name, graf@amazon.com,
liukexin@kylinos.cn, kexec@lists.infradead.org
Subject: Re: [PATCH v6 4/8] kho: Add kho_disable()
Date: Thu, 29 Oct 2026 17:47:15 +0000 [thread overview]
Message-ID: <sashiko-outbox-189747@kernel.org> (raw)
In-Reply-To: <20261029172956.20791-5-dongtai.guo@linux.dev>
> From: George Guo <guodongtai@kylinos.cn>
>
> On LoongArch, KHO state is passed to the next kernel only through an EFI
> configuration table. Only the EFI stub installs this table, during a cold
> boot.
>
> A kernel entered through kexec does not run the EFI stub, so it cannot
> create the table if the previous kernel did not provide one. Without
> the table, it cannot pass KHO state to the next kernel on a subsequent
> kexec.
>
> Add kho_disable() so architecture code can turn KHO off when the EFI
> configuration table is missing.
>
> Signed-off-by: George Guo <guodongtai@kylinos.cn>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261029172956.20791-1-dongtai.guo@linux.dev?part=4
next prev parent reply other threads:[~2026-10-29 17:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-29 17:29 [PATCH v6 0/8] LoongArch: Add KHO support and selftests George Guo
2026-10-29 17:29 ` [PATCH v6 1/8] efi: Pass KHO state to the next kernel in a configuration table George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 19:28 ` Ard Biesheuvel
2026-10-29 19:42 ` Pratyush Yadav
2026-10-29 17:29 ` [PATCH v6 2/8] kho: Write KHO state to the EFI table at kexec time George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 17:29 ` [PATCH v6 3/8] kho: Include linux/mm.h in kho_block.c George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 17:29 ` [PATCH v6 4/8] kho: Add kho_disable() George Guo
2026-10-29 17:47 ` sashiko-bot [this message]
2026-10-29 17:29 ` [PATCH v6 5/8] LoongArch: Allow memblock arrays to resize George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 17:29 ` [PATCH v6 6/8] LoongArch: Enable kexec handover (KHO) George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 17:29 ` [PATCH v6 7/8] selftests/kho: Add LoongArch vmtest support George Guo
2026-10-29 17:47 ` sashiko-bot
2026-10-29 17:29 ` [PATCH v6 8/8] selftests/liveupdate: " George Guo
2026-10-29 17:47 ` sashiko-bot
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