linux-kernel - Re: [PATCH] tpm: efi: Don't create binary_bios

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Message-ID: <f4e72061-35e-cc4a-c8b7-cfbf5ef42e4@panix.com>
Date:   Tue, 3 Nov 2020 18:12:02 -0800 (PST)
From:   "Kenneth R. Crudup" <kenny@...ix.com>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>
cc:     Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        Peter Huewe <peterhuewe@....de>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-efi@...r.kernel.org,
        Thiébaud Weksteen <tweek@...gle.com>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH] tpm: efi: Don't create binary_bios_measurements file
 for an empty log


On Wed, 28 Oct 2020, Tyler Hicks wrote:

> Hi Kai, Kenneth, and Mimi - could one or two of you please follow these
> steps:
...

OK, I built a kernel with the two patches applied, and with and without commit
7f3d176f5f7e, and when I run "sudo fwupdtpmevlog" (which normally causes a
panic() when 7f3d176f5f7e is in place) and the results are:

- With 7f3d176f5f7e reverted, no WARNs of any kind
- With 7f3d176f5f7e in place, same, I just get "UEFI TPM log area empty"

	-Kenny

-- 
Kenneth R. Crudup  Sr. SW Engineer, Scott County Consulting, Orange County CA