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Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to sa
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state |
Date: |
Wed, 19 Jan 2011 14:11:23 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
Gerd Hoffmann <address@hidden> writes:
> On 01/18/11 18:09, Anthony Liguori wrote:
>> On 01/18/2011 10:56 AM, Jan Kiszka wrote:
>>>
>>>> The device model topology is 100% a hidden architectural detail.
>>> This is true for the sysbus, it is obviously not the case for PCI and
>>> similarly discoverable buses. There we have a guest-explorable topology
>>> that is currently equivalent to the the qdev layout.
>>
>> But we also don't do PCI passthrough so we really haven't even explored
>> how that maps in qdev. I don't know if qemu-kvm has attempted to
>> qdev-ify it.
>
> It is qdev-ified. It is a normal pci device from qdev's point of view.
>
> BTW: is there any reason why (vfio-based) pci passthrough couldn't
> work with tcg?
>
>> The -device interface is a stable interface. Right now, you don't
>> specify any type of identifier of the pci bus when you create a PCI
>> device. It's implied in the interface.
>
> Wrong. You can specify the bus you want attach the device to via
> bus=<name>. This is true for *every* device, including all pci
> devices. If unspecified qdev uses the first bus it finds.
>
> As long as there is a single pci bus only there is simply no need to
> specify it, thats why nobody does that today. Once q35 finally
> arrives this will change of course.
As far as I know, libvirt does it already.
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, (continued)
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Jan Kiszka, 2011/01/18
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Gerd Hoffmann, 2011/01/19
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state,
Markus Armbruster <=
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/19
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Daniel P. Berrange, 2011/01/19
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/19
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Gerd Hoffmann, 2011/01/20
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Daniel P. Berrange, 2011/01/20
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/20
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/20
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Gerd Hoffmann, 2011/01/21
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Markus Armbruster, 2011/01/21
- Re: [Qemu-devel] [PATCH 28/35] kvm: x86: Introduce kvmclock device to save/restore its state, Anthony Liguori, 2011/01/19