[virtio-dev] Re: Sleeping while atomic in virtio-gpu edid handling

2019-06-25 Thread Gerd Hoffmann
On Tue, Jun 25, 2019 at 05:15:41PM +0200, Cornelia Huck wrote: > Hi Gerd, > > flipping the virtio-gpu edid support in QEMU to default enabled exposed > the following backtrace in my guest (from my bisect run down to the > initial commit in Linux): > > [drm] virgl 3d acceleration not supported by

[virtio-dev] Sleeping while atomic in virtio-gpu edid handling

2019-06-25 Thread Cornelia Huck
Hi Gerd, flipping the virtio-gpu edid support in QEMU to default enabled exposed the following backtrace in my guest (from my bisect run down to the initial commit in Linux): [drm] virgl 3d acceleration not supported by guest [drm] EDID support available. [drm] number of scanouts: 1 [drm] number

Re: [virtio-dev] [RFC] Add polling mode feature bit

2019-06-25 Thread Paolo Bonzini
On 25/06/19 21:17, Conghui Chen wrote: > On Tue 25.Jun'19 at  9:32:13 +0200, Paolo Bonzini wrote: >> On 25/06/19 17:15, Conghui Chen wrote: >>> Hi, >>> >>> We are working on enable VIRTIO on RTVMs. For RT requirements and some >>> security reasons, the VIRTIO interrupts are not allowed to inject to

Re: [virtio-dev] [RFC] Add polling mode feature bit

2019-06-25 Thread Conghui Chen
On Tue 25.Jun'19 at 9:32:13 +0200, Paolo Bonzini wrote: On 25/06/19 17:15, Conghui Chen wrote: Hi, We are working on enable VIRTIO on RTVMs. For RT requirements and some security reasons, the VIRTIO interrupts are not allowed to inject to guest OS, and the notify flow may bring some uncertain

Re: [virtio-dev] [PATCH v3 2/2] virtio-fs: add DAX window

2019-06-25 Thread Dr. David Alan Gilbert
* Michael S. Tsirkin (m...@redhat.com) wrote: > On Mon, Jun 24, 2019 at 02:58:08PM +0100, Stefan Hajnoczi wrote: > > On Tue, Jun 18, 2019 at 09:41:25PM -0400, Michael S. Tsirkin wrote: > > > On Wed, Feb 20, 2019 at 12:46:13PM +, Stefan Hajnoczi wrote: > > > > Describe how shared memory region I

Re: [virtio-dev] [RFC] Add polling mode feature bit

2019-06-25 Thread Paolo Bonzini
On 25/06/19 17:15, Conghui Chen wrote: > Hi, > > We are working on enable VIRTIO on RTVMs. For RT requirements and some > security reasons, the VIRTIO interrupts are not allowed to inject to > guest OS, and the notify flow may bring some uncertain delay, so the > polling mode for VIRTIO device is

[virtio-dev] [RFC] Add polling mode feature bit

2019-06-25 Thread Conghui Chen
Hi, We are working on enable VIRTIO on RTVMs. For RT requirements and some security reasons, the VIRTIO interrupts are not allowed to inject to guest OS, and the notify flow may bring some uncertain delay, so the polling mode for VIRTIO device is taken into consideration. And in some open source