From: Conor Dooley <conor@kernel.org>
To: Petr Tesarik <petrtesarik@huaweicloud.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor.dooley@microchip.com>,
Li Huafei <lihuafei1@huawei.com>,
Liao Chang <liaochang1@huawei.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Kees Cook <keescook@chromium.org>,
Andrew Morton <akpm@linux-foundation.org>,
Heiko Stuebner <heiko@sntech.de>,
Ricardo Ribalda <ribalda@chromium.org>,
Alyssa Ross <hi@alyssa.is>, Li Zhengyu <lizhengyu3@huawei.com>,
"open list:RISC-V ARCHITECTURE" <linux-riscv@lists.infradead.org>,
kexec@lists.infradead.org,
open list <linux-kernel@vger.kernel.org>,
Torsten Duwe <duwe@suse.de>,
Roberto Sassu <roberto.sassu@huaweicloud.com>,
petr@tesarici.cz
Subject: Re: [PATCH v2 3/3] riscv/kexec: load initrd high in available memory
Date: Wed, 26 Jul 2023 17:38:12 +0100 [thread overview]
Message-ID: <20230726-busily-marsupial-504e9ff2d873@spud> (raw)
In-Reply-To: <67c8eb9eea25717c2c8208d9bfbfaa39e6e2a1c6.1690365011.git.petr.tesarik.ext@huawei.com>
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On Wed, Jul 26, 2023 at 11:54:01AM +0200, Petr Tesarik wrote:
> From: Torsten Duwe <duwe@suse.de>
>
> When initrd is loaded low, the secondary kernel fails like this:
>
> INITRD: 0xdc581000+0x00eef000 overlaps in-use memory region
>
> This initrd load address corresponds to the _end symbol, but the
> reservation is aligned on PMD_SIZE, as explained by a comment in
> setup_bootmem().
>
> It is technically possible to align the initrd load address accordingly,
> leaving a hole between the end of kernel and the initrd, but it is much
> simpler to allocate the initrd top-down.
>
> Fixes: 838b3e28488f ("RISC-V: Load purgatory in kexec_file")
> Signed-off-by: Torsten Duwe <duwe@suse.de>
> Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
> Cc: stable@vger.kernel.org
Trying to align it might be worthwhile, but the simple fix makes sense
for now & w.r.t backporting.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Thanks,
Conor.
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next prev parent reply other threads:[~2023-07-26 16:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-26 9:53 [PATCH v2 0/3] RISC-V: Fix a few kexec_file_load(2) failures Petr Tesarik
2023-07-26 9:53 ` [PATCH v2 1/3] riscv/kexec: handle R_RISCV_CALL_PLT relocation type Petr Tesarik
2023-07-26 16:30 ` Conor Dooley
2023-07-26 9:54 ` [PATCH v2 2/3] riscv/purgatory: do not link with string.o and its dependencies Petr Tesarik
2023-07-26 16:33 ` Conor Dooley
2023-08-03 15:13 ` Palmer Dabbelt
2023-08-03 15:17 ` Conor Dooley
2023-08-03 15:33 ` Petr Tesarik
2023-07-26 9:54 ` [PATCH v2 3/3] riscv/kexec: load initrd high in available memory Petr Tesarik
2023-07-26 16:38 ` Conor Dooley [this message]
2023-07-26 18:27 ` Petr Tesarik
2023-08-01 9:27 ` [PATCH v2 0/3] RISC-V: Fix a few kexec_file_load(2) failures Petr Tesarik
2023-08-03 15:10 ` patchwork-bot+linux-riscv
2023-08-09 14:35 ` (subset) " Palmer Dabbelt
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