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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 19:18:53 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
On 07/30/14 18:35, Stefan Berger wrote:
> Laszlo Ersek <address@hidden> wrote on 07/30/2014 12:18:02 PM:
>
>> From: Laszlo Ersek <address@hidden>
>> To: "Michael S. Tsirkin" <address@hidden>, Stefan
>> Berger/Watson/address@hidden
>> Cc: address@hidden, Stefan Berger <address@hidden>
>> Date: 07/30/2014 12:18 PM
>> Subject: Re: [PATCH v2] Add ACPI tables for TPM
>>
>> 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.
>
> Is this what finally requires another command for the linker/loader to
> allocate a chunk of memory where the size of the to-be-allocated memory
> is found
> at the location of the pointer ?
No, the above is a limitation of the current OVMF parser.
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, 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 <=
- 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
- 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