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Date:   Mon, 6 Jul 2020 23:08:12 -0400
From:   Stefan Berger <>
To:     Jarkko Sakkinen <>
Cc:     Stefan Berger <>,,,,
Subject: Re: [PATCH v9 2/2] tpm: Add support for event log pointer found in
 TPM2 ACPI table

On 7/6/20 10:24 PM, Jarkko Sakkinen wrote:
> On Mon, Jul 06, 2020 at 07:55:26PM -0400, Stefan Berger wrote:
>> On 7/6/20 7:09 PM, Jarkko Sakkinen wrote:
>>> On Mon, Jul 06, 2020 at 02:19:53PM -0400, Stefan Berger wrote:
>>>> From: Stefan Berger <>
>>>> In case a TPM2 is attached, search for a TPM2 ACPI table when trying
>>>> to get the event log from ACPI. If one is found, use it to get the
>>>> start and length of the log area. This allows non-UEFI systems, such
>>>> as SeaBIOS, to pass an event log when using a TPM2.
>>>> Signed-off-by: Stefan Berger <>
>>> Do you think that QEMU with TPM 1.2 emulator turned on would be a viable
>>> way to test this?
>> Yes.
> Is the emulator bundled with QEMU or does it have to be installed
> separately?

It has to be installed separately. On Fedora 31 it would just be a `sudo 
dnf -y install swtpm-tools` and you should be good to go with libvirt / 

> /Jarkko

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