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Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios |
Date: |
Fri, 26 Jul 2013 11:06:34 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130621 Thunderbird/17.0.7 |
Hi,
>> You can look at the tables without doing a full linker pass first, so
>> the firmware can easily initialize the hardware according to what it
>> finds in specific acpi tables. Check FADT for pm_base. Check MCFG for
>> mmconf xbar location.
>>
>> cheers,
>> Gerd
>
> That's something I think that it's best for firmware to avoid.
> Much better to load tables in memory and use standard ACPI
> methods to find specific tables.
Problem is this happens relatively late in the firmware boot process.
> It's a general thing: paravirtualization is often easier
> but let's use standard interfaces where possible.
Sure. Thats why I want read the info from the acpi tables. Being able
to do that without a full acpi table linker pass makes this easier for
the firmware, especially for informations needed very early in the
initialization process.
What is wrong with etc/acpi/fadt ?
> Sticking everything in one file will serve to keep firmware
> honest and not let it cut corners.
Parse error.
cheers,
Gerd
- Re: [Qemu-devel] [PATCH v3 13/14] hpet: add API to find it, (continued)
- [Qemu-devel] [PATCH v3 11/14] piix: APIs for pc guest info, Michael S. Tsirkin, 2013/07/24
- [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Michael S. Tsirkin, 2013/07/24
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Gerd Hoffmann, 2013/07/25
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Michael S. Tsirkin, 2013/07/25
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Gerd Hoffmann, 2013/07/25
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Michael S. Tsirkin, 2013/07/25
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios,
Gerd Hoffmann <=
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Gerd Hoffmann, 2013/07/26
- Re: [Qemu-devel] [PATCH v3 14/14] i386: ACPI table generation code from seabios, Michael S. Tsirkin, 2013/07/28
[Qemu-devel] [PATCH v3 02/14] i386: add ACPI table files from seabios, Michael S. Tsirkin, 2013/07/24
[Qemu-devel] [PATCH v3 01/14] hw/i386/pc.c: move IO_APIC_DEFAULT_ADDRESS to include/hw/i386/apic.h, Michael S. Tsirkin, 2013/07/24
[Qemu-devel] [PATCH v3 03/14] acpi: add rules to compile ASL source, Michael S. Tsirkin, 2013/07/24
Re: [Qemu-devel] [PATCH v3 00/14] qemu: generate acpi tables for the guest, Andreas Färber, 2013/07/25