similar to: [PATCH] xen: introduce xen_vring_use_dma

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > Export xen_swiotlb for all platforms using xen swiotlb > > > > Use xen_swiotlb to determine when vring should use dma APIs to map the > > ring: when xen_swiotlb is enabled the dma API is required. When it is > > disabled, it is not required. > >

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > Export xen_swiotlb for all platforms using xen swiotlb > > > > Use xen_swiotlb to determine when vring should use dma APIs to map the > > ring: when xen_swiotlb is enabled the dma API is required. When it is > > disabled, it is not required. > >

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > > > Export xen_swiotlb for all platforms using xen swiotlb > > > > > > > > Use xen_swiotlb to determine when

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > > > Export xen_swiotlb for all platforms using xen swiotlb > > > > > > > > Use xen_swiotlb to determine when

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng

On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng

> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at

> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at

On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > > Export xen_swiotlb for all platforms using xen swiotlb > > > > > > Use xen_swiotlb to determine when vring should use dma APIs to map the > > > ring: when xen_swiotlb is

On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > > > > > Export xen_swiotlb for all platforms

On Fri, 26 Jun 2020, Michael S. Tsirkin wrote: > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at 10:59:47AM -0700,

On Fri, 26 Jun 2020, Michael S. Tsirkin wrote: > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun 24, 2020 at 10:59:47AM -0700,

On Wed, Jun 24, 2020 at 05:17:32PM +0800, Peng Fan wrote: > Export xen_swiotlb for all platforms using xen swiotlb > > Use xen_swiotlb to determine when vring should use dma APIs to map the > ring: when xen_swiotlb is enabled the dma API is required. When it is > disabled, it is not required. > > Signed-off-by: Peng Fan <peng.fan at nxp.com> Isn't there some way

On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > On Wed, Jun 24, 2020 at 10:59:47AM -0700, Stefano Stabellini wrote: > > > > > On Wed, 24 Jun 2020,

On Mon, Jun 29, 2020 at 03:05:19AM +0000, Peng Fan wrote: > > Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > > > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > On Wed, Jun 24, 2020 at 02:53:54PM -0700, Stefano Stabellini wrote: > > > > > On Wed, 24 Jun

> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > On Mon, Jun 29, 2020 at 03:05:19AM +0000, Peng Fan wrote: > > > Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > > > > > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun

> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > On Mon, Jun 29, 2020 at 03:05:19AM +0000, Peng Fan wrote: > > > Subject: Re: [PATCH] xen: introduce xen_vring_use_dma > > > > > > On Thu, Jun 25, 2020 at 10:31:27AM -0700, Stefano Stabellini wrote: > > > > On Wed, 24 Jun 2020, Michael S. Tsirkin wrote: > > > > > On Wed, Jun

Sorry for the late reply -- a couple of conferences kept me busy. On Wed, 1 Jul 2020, Michael S. Tsirkin wrote: > On Wed, Jul 01, 2020 at 10:34:53AM -0700, Stefano Stabellini wrote: > > Would you be in favor of a more flexible check along the lines of the > > one proposed in the patch that started this thread: > > > > if (xen_vring_use_dma()) > >

Sorry for the late reply -- a couple of conferences kept me busy. On Wed, 1 Jul 2020, Michael S. Tsirkin wrote: > On Wed, Jul 01, 2020 at 10:34:53AM -0700, Stefano Stabellini wrote: > > Would you be in favor of a more flexible check along the lines of the > > one proposed in the patch that started this thread: > > > > if (xen_vring_use_dma()) > >

On Wed, 1 Jul 2020, Christoph Hellwig wrote: > On Mon, Jun 29, 2020 at 04:46:09PM -0700, Stefano Stabellini wrote: > > > I could imagine some future Xen hosts setting a flag somewhere in the > > > platform capability saying "no xen specific flag, rely on > > > "VIRTIO_F_ACCESS_PLATFORM". Then you set that accordingly in QEMU. > > > How about