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From: Breno Leitao <leitao@debian.org>
To: Usama Arif <usamaarif642@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	ardb@kernel.org, linux-efi@vger.kernel.org,
	kexec@lists.infradead.org, bhe@redhat.com, vgoyal@redhat.com,
	devel@edk2.groups.io, rppt@kernel.org, gourry@gourry.net,
	rmikey@meta.com, tglx@linutronix.de
Subject: Re: [edk2-devel] EFI table being corrupted during Kexec
Date: Tue, 10 Sep 2024 09:09:21 -0700	[thread overview]
Message-ID: <20240910-strong-dancing-rottweiler-aaed51@devvm32600> (raw)
In-Reply-To: <9b024f7d-e326-46eb-bd88-71a16151fcf0@gmail.com>

hello Usama,

On Tue, Sep 10, 2024 at 04:46:15PM +0100, Usama Arif wrote:
> --- a/drivers/firmware/efi/tpm.c
> +++ b/drivers/firmware/efi/tpm.c
> @@ -60,7 +60,9 @@ int __init efi_tpm_eventlog_init(void)
>  	}
>  
>  	tbl_size = sizeof(*log_tbl) + log_tbl->size;
> -	memblock_reserve(efi.tpm_log, tbl_size);
> +	if (!memblock_reserve(efi.tpm_log, tbl_size)) {
> +		arch_update_firmware_area(efi.tpm_log, tbl_size);
> +	}

Shouldn't you reserve the region into 8250 independently of
memblock_reserve() return value?

Thanks for the patch,
--breno


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  reply	other threads:[~2024-09-10 16:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-10 13:58 [edk2-devel] EFI table being corrupted during Kexec Breno Leitao
     [not found] ` <87ed5rd1qf.fsf@email.froward.int.ebiederm.org>
2024-09-10 15:13   ` Breno Leitao
2024-09-10 15:46   ` Usama Arif
2024-09-10 16:09     ` Breno Leitao [this message]
2024-09-10 16:14       ` Gregory Price
2024-09-11 10:58   ` Usama Arif
2024-09-10 15:44 ` Andrew Fish via groups.io
2024-09-11  8:44   ` Gerd Hoffmann

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