> -Original Message-
> From: Gurchetan Singh
> Sent: Tuesday, April 13, 2021 8:58 AM
> To: Gerd Hoffmann
> Cc: Kasireddy, Vivek ; ML dri-devel de...@lists.freedesktop.org>; Zhang, Tina
> Subject: Re: [PATCH] drm/virtio: Create Dumb BOs as guest Blobs (v2)
>
On Fri, Apr 9, 2021 at 12:48 AM Gerd Hoffmann wrote:
> Hi,
>
> > > IIRC the VIRTGPU_BLOB_FLAG_USE_SHAREABLE flag means that the host *can*
> > > create a shared mapping (i.e. the host seeing guest-side changes
> without
> > > explicit transfer doesn't cause problems for the guest). It doesn no
Hi,
> > IIRC the VIRTGPU_BLOB_FLAG_USE_SHAREABLE flag means that the host *can*
> > create a shared mapping (i.e. the host seeing guest-side changes without
> > explicit transfer doesn't cause problems for the guest). It doesn not
> > mean the host *must* create a shared mapping (note that ther
On Thu, Apr 8, 2021 at 2:27 AM Gerd Hoffmann wrote:
> > > +
> > > + if (vgdev->has_resource_blob) {
> > > + params.blob_mem = VIRTGPU_BLOB_MEM_GUEST;
> > > + params.blob_flags = VIRTGPU_BLOB_FLAG_USE_SHAREABLE;
> > >
> >
> > This creates some log spam with crosvm
> > +
> > + if (vgdev->has_resource_blob) {
> > + params.blob_mem = VIRTGPU_BLOB_MEM_GUEST;
> > + params.blob_flags = VIRTGPU_BLOB_FLAG_USE_SHAREABLE;
> >
>
> This creates some log spam with crosvm + virgl_3d + vanilla linux, since
> transfers don't work for guest
On Tue, Apr 6, 2021 at 1:47 PM Vivek Kasireddy
wrote:
> If support for Blob resources is available, then dumb BOs created
> by the driver can be considered as guest Blobs.
>
> v2: Don't skip transfer and flush commands as part of plane update
> as the device may have created a shared mapping. (Ge
