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Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common
From: |
Neo Jia |
Subject: |
Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU. |
Date: |
Wed, 17 Feb 2016 02:34:09 -0800 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Wed, Feb 17, 2016 at 09:52:04AM +0000, Tian, Kevin wrote:
> > From: Neo Jia [mailto:address@hidden
> > Sent: Wednesday, February 17, 2016 5:35 PM
> >
> > On Wed, Feb 17, 2016 at 08:57:08AM +0000, Tian, Kevin wrote:
> > > > From: Neo Jia [mailto:address@hidden
> > > > Sent: Wednesday, February 17, 2016 3:55 PM
> > >
> > If we can make it free, why not?
>
> I can buy-in this argument.
Great!
>
> Qemu is not a kernel component. And UUID is OPTIONAL for Qemu.
>
> KVM is the kernel component. It doesn't use UUID at all. the relation between
> UUID and VM is fully maintained in user space.
Hold on ... we are talking about the vgpu.ko not KVM right?
UUID is just a generic way to represent an object, here we use a uuid to
represent a virtual gpu device.
>
> >
> > Please also note that using UUID to represent a virtual gpu device directory
> > doesn't mean UUID is part of a GPU resource.
>
> but it adds a hard dependency on another resource - UUID.
>
> >
> > >
> > > So let's keep UUID as an optional parameter. When UUID is provided, it
> > > will be included in the vGPU name then your requirement can be met.
> > >
> >
> > Like I have said before, we are seeking a generic interface to allow upper
> > layer
> > software stack to manage vgpu device for different vendors, so we should
> > not really
> > consider "an optional path for vgpu device discovery" at all.
> >
> > This is why I think we should use this UUID as a generic management
> > interface,
> > and we shouldn't have anything optional.
> >
>
> I don't buy-in this argument. I always think kernel design should provide
> enough flexibility, instead of assuming user space behavior.
>
I think you are using the wrong terms here. Flexibility doesn't apply here. What
we are trying to achieve here is to have a generic interface for upper layer
software to manage vgpu device.
> Let me also add some Citrix friends. See how they feel about the necessity of
> having UUID in vgpu name.
Sorry?
Thanks,
Neo
>
> Thanks
> Kevin
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., (continued)
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU.,
Neo Jia <=
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Gerd Hoffmann, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Gerd Hoffmann, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Neo Jia, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Tian, Kevin, 2016/02/17
- Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Gerd Hoffmann, 2016/02/02
Re: [Qemu-devel] [RFC PATCH v1 1/1] vGPU core driver : to provide common interface for vGPU., Kirti Wankhede, 2016/02/02