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Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines
From: |
Marcel Apfelbaum |
Subject: |
Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines |
Date: |
Thu, 1 Sep 2016 16:51:47 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 |
On 09/01/2016 04:27 PM, Peter Maydell wrote:
On 1 September 2016 at 14:22, Marcel Apfelbaum <address@hidden> wrote:
Proposes best practices on how to use PCIe/PCI device
in PCIe based machines and explain the reasoning behind them.
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
Hi,
Please add your comments on what to add/remove/edit to make this doc usable.
Hi Peter,
As somebody who doesn't really understand the problem space, my
thoughts:
(1) is this intended as advice for developers writing machine
models and adding pci controllers to them, or is it intended as
advice for users (and libvirt-style management layers) about
how to configure QEMU?
Is it intended for management layers as they have no way to
understand how to "consume" the Q35 machine,
but also for firmware developers (OVMF/SeaBIOS) to help them
understand the usage model so they can optimize IO/MEM
resources allocation for both boot time and hot-plug.
QEMU users/developers can also benefit from it as the PCIe arch
is more complex supporting both PCI/PCIe devices and
several PCI/PCIe controllers with no clear rules on what goes where.
(2) it seems to be a bit short on concrete advice (either
"you should do this" instructions to machine model developers,
or "use command lines like this" instructions to end-users.
Thanks for the point. I'll be sure to add detailed command line examples
to the next version.
Thanks,
Marcel
thanks
-- PMM
- [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Marcel Apfelbaum, 2016/09/01
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Peter Maydell, 2016/09/01
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines,
Marcel Apfelbaum <=
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Laszlo Ersek, 2016/09/05
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Marcel Apfelbaum, 2016/09/05
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Laszlo Ersek, 2016/09/06
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Marcel Apfelbaum, 2016/09/06
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Gerd Hoffmann, 2016/09/07
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Laszlo Ersek, 2016/09/07
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Marcel Apfelbaum, 2016/09/07
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Marcel Apfelbaum, 2016/09/07
- Re: [Qemu-devel] [PATCH RFC] docs: add PCIe devices placement guidelines, Alex Williamson, 2016/09/07