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Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2 |
Date: |
Tue, 14 Aug 2012 17:04:20 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2012-08-14 16:53, Cole Robinson wrote:
> On 08/13/2012 03:31 PM, Anthony Liguori wrote:
>> Jan Kiszka <address@hidden> writes:
>>
>>> On 2012-08-13 15:58, Avi Kivity wrote:
>>>> On 08/13/2012 04:27 PM, Anthony Liguori wrote:
>>>>
>>>>> Thanks for pushing this forward! Hopefully this will finally kill off
>>>>> qemu-kvm.git for good.
>>>>
>>>> No, it won't. vfio requires a 3.6 kernel, which we cannot assume anyone
>>>> has. We'll need the original device assignment code side-by-side.
>>>
>>> ...which is on my to-do list for 1.3.
>>
>> Is there a deprecation plan for the old device assignment code?
>>
>> I'm not really against the idea of requiring a new kernel for new
>> features.
>>
>> From a Fedora/OpenSUSE point of view, would supporting old kernels be a
>> requirement to stop shipping qemu-kvm.git over qemu.git?
>>
>
> Speaking as a Fedora maintainer, compatibility with old kernels isn't that
> important to us, provided the functionality of the new way is comparable to
> the old way.
>
> As far as switching over to qemu.git, I assume there will eventually be a day
> when the fork would 'end' and qemu-kvm would stop getting its own releases,
> which is when we'd switch. Maybe that assumption is wrong or over simplifying
> the trade offs, but if merge work is ongoing I don't see a very compelling
> reason to switch.
If you sit and wait, you may find out on that specific day that someone
forget to port over feature X and Y, and now QEMU does not fit your
needs and qemu-kvm is dead.
Jan
--
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux
- Re: [Qemu-devel] [PATCH 2/3] vfio: vfio-pci device assignment driver, (continued)
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Anthony Liguori, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Avi Kivity, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Jan Kiszka, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Anthony Liguori, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Jan Kiszka, 2012/08/14
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Avi Kivity, 2012/08/14
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Cole Robinson, 2012/08/14
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2,
Jan Kiszka <=
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Cole Robinson, 2012/08/14
Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Alex Williamson, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Andreas Hartmann, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Alex Williamson, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Andreas Hartmann, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Alex Williamson, 2012/08/13
- Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Andreas Hartmann, 2012/08/13
Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Anthony Liguori, 2012/08/13
Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Blue Swirl, 2012/08/13
Re: [Qemu-devel] [PATCH 0/3] VFIO-based PCI device assignment for QEMU 1.2, Alex Williamson, 2012/08/13