On Wed, Dec 20, 2023 at 06:12:55PM -0800, Sean Christopherson wrote:
> On Wed, Dec 20, 2023, Yan Zhao wrote:
> > On Tue, Dec 19, 2023 at 12:26:45PM +0800, Yan Zhao wrote:
> > > On Mon, Dec 18, 2023 at 07:08:51AM -0800, Sean Christopherson wrote:
> > > > > > Implementation Consideration
> > > > > >
On Wed, Dec 20, 2023, Yan Zhao wrote:
> On Tue, Dec 19, 2023 at 12:26:45PM +0800, Yan Zhao wrote:
> > On Mon, Dec 18, 2023 at 07:08:51AM -0800, Sean Christopherson wrote:
> > > > > Implementation Consideration
> > > > > ===
> > > > > There is a previous series [1] from google to serve the same
On Tue, Dec 19, 2023 at 12:26:45PM +0800, Yan Zhao wrote:
> On Mon, Dec 18, 2023 at 07:08:51AM -0800, Sean Christopherson wrote:
> > > > Implementation Consideration
> > > > ===
> > > > There is a previous series [1] from google to serve the same purpose to
> > > > let KVM be aware of virtio GPU's
On Mon, Dec 18, 2023 at 07:08:51AM -0800, Sean Christopherson wrote:
> > > Implementation Consideration
> > > ===
> > > There is a previous series [1] from google to serve the same purpose to
> > > let KVM be aware of virtio GPU's noncoherent DMA status. That series
> > > requires a new memslot
+Yiwei
On Fri, Dec 15, 2023, Kevin Tian wrote:
> > From: Zhao, Yan Y
> > Sent: Thursday, December 14, 2023 6:35 PM
> >
> > - For host non-MMIO pages,
> > * virtio guest frontend and host backend driver should be synced to use
> > the same memory type to map a buffer. Otherwise, there will
On Fri, Dec 15, 2023 at 02:23:48PM +0800, Tian, Kevin wrote:
> > From: Zhao, Yan Y
> > Sent: Thursday, December 14, 2023 6:35 PM
> >
> > - For host non-MMIO pages,
> > * virtio guest frontend and host backend driver should be synced to use
> > the same memory type to map a buffer.
> +Yiwei
>
> On Fri, Dec 15, 2023, Kevin Tian wrote:
> > > From: Zhao, Yan Y
> > > Sent: Thursday, December 14, 2023 6:35 PM
> > >
> > > - For host non-MMIO pages,
> > > * virtio guest frontend and host backend driver should be synced to use
> > > the same memory type to map a buffer.
> From: Zhao, Yan Y
> Sent: Thursday, December 14, 2023 6:35 PM
>
> - For host non-MMIO pages,
> * virtio guest frontend and host backend driver should be synced to use
> the same memory type to map a buffer. Otherwise, there will be
> potential problem for incorrect memory data. But
Introduce a new KVM device that represents a virtio device in order to
allow user to indicate device hardware's noncoherent DMA status.
Motivation
===
A virtio GPU device may want to configure GPU hardware to work in
noncoherent mode, i.e. some of its DMAs do not snoop CPU caches.
This is
