From: Jarkko Sakkinen <jarkko@kernel.org>
To: Yeoreum Yun <yeoreum.yun@arm.com>
Cc: sudeep.holla@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca,
stuart.yoder@arm.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-integrity@vger.kernel.org
Subject: Re: [PATCH v2 0/2] fix failure of integration IMA with tpm_crb_ffa
Date: Wed, 11 Jun 2025 19:40:08 +0300 [thread overview]
Message-ID: <aEmxaJQNfYJwSCd0@kernel.org> (raw)
In-Reply-To: <aEhNnAxlToRMteA2@e129823.arm.com>
On Tue, Jun 10, 2025 at 04:22:04PM +0100, Yeoreum Yun wrote:
> > OK, if ffa_init() is leveled up in the initcall hierarchy, shouldn't
> > that be enough as long as ko's can be found from initramfs?
>
> As you mentioned, this is handled in Patch #1.
> However, although ffa_init() is called first,
> unless tpm_crb_ffa_init() is also invoked,
> crb_acpi_driver_init() will fail with -EPROBE_DEFER.
>
> Please note that IMA is always built-in and cannot be built as a module.
Sure but if one needs IMA, then tpm_crb_ffa can be compiled as built-in
with zero code changes.
BR, Jarkko
next prev parent reply other threads:[~2025-06-11 16:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-10 6:03 [PATCH v2 0/2] fix failure of integration IMA with tpm_crb_ffa Yeoreum Yun
2025-06-10 6:03 ` [PATCH v2 1/2] firmware: arm_ffa: Change initcall level of ffa_init() to rootfs_initcall Yeoreum Yun
2025-06-10 6:03 ` [PATCH v2 2/2] tpm: tpm_crb_ffa: manually register tpm_crb_ffa driver when it's built-in Yeoreum Yun
2025-06-10 12:35 ` [PATCH v2 0/2] fix failure of integration IMA with tpm_crb_ffa Jarkko Sakkinen
2025-06-10 13:18 ` Yeoreum Yun
2025-06-10 13:58 ` Jarkko Sakkinen
2025-06-10 14:38 ` Yeoreum Yun
2025-06-10 14:59 ` Jarkko Sakkinen
2025-06-10 15:22 ` Yeoreum Yun
2025-06-11 16:40 ` Jarkko Sakkinen [this message]
2025-06-11 17:36 ` Yeoreum Yun
2025-06-12 10:30 ` Jarkko Sakkinen
2025-06-12 13:25 ` Yeoreum Yun
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