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Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM |
Date: |
Wed, 30 Jul 2014 18:18:02 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
On 07/30/14 18:10, Michael S. Tsirkin wrote:
> On Wed, Jul 30, 2014 at 12:03:46PM -0400, Stefan Berger wrote:
>> Laszlo Ersek <address@hidden> wrote on 07/30/2014 11:58:52 AM:
>>> In the short term, probably skip TCPA, or advise users in documentation
>>> not to enable the TPM device when running OVMF.
>
> Hmm but doesn't OVMF rely on all tables being packed without holes
> in memory?
> I remember it did, and if it still does, this breaks unless TCPA is
> the last ...
Ah, do you mean that the table size field in the ACPI table header of
TCPA would *not* include the TCG event log that is tacked-on? Yes, that
would certainly trip up the parser. It advances by looking at the table
size fields in the headers.
>> I guess we can do that. You can skip the TCPA for now; once the UEFI has TPM
>> support, this table would then be needed.
> If it doesn't work anyway, we can just tell people not to enable TPM
> with OVMF. No need for hack in OVMF to skip it.
Agree 100%.
Thanks
Laszlo
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, (continued)
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Michael S. Tsirkin, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Michael S. Tsirkin, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM,
Laszlo Ersek <=
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Michael S. Tsirkin, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Michael S. Tsirkin, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Stefan Berger, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Michael S. Tsirkin, 2014/07/30
- Re: [Qemu-devel] [PATCH v2] Add ACPI tables for TPM, Laszlo Ersek, 2014/07/30