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Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support |
Date: |
Tue, 11 Jun 2013 07:33:02 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130513 Thunderbird/17.0.6 |
Hi,
> * Use of glib's GArray makes it much easier to build
> up tables in code without need for iasl and code patching
Nice.
> Design:
> - each bus gets assigned a number 0-255
> - generated ACPI code writes this number
> to a new BSEL register, then uses existing
> UP/DOWN registers to probe slot status;
> to eject, write number to BSEL register,
> then slot into existing EJ
>
> This is to address the ACPI spec requirement to
> avoid config cycle access to any bus except PCI roots.
>
> Portability:
> - Non x86 (or any Linux) platforms don't need any of this code.
> They can keep happily using SHPC the way
> they always did.
Hmm. Is is possible to write a SHPC driver in AML? I think it would be
alot better to have one guest/host interface for pci bridge hotplug
instead of two.
cheers,
Gerd
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, (continued)
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Anthony Liguori, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Kevin O'Connor, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Anthony Liguori, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Kevin O'Connor, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Jordan Justen, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Anthony Liguori, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Jordan Justen, 2013/06/10
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support,
Gerd Hoffmann <=
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Gerd Hoffmann, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Gerd Hoffmann, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11
- Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support, Michael S. Tsirkin, 2013/06/11