On Sat, 11 Jul 2020, Michael S. Tsirkin wrote:
> On Fri, Jul 10, 2020 at 10:23:22AM -0700, Stefano Stabellini wrote:
> > 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,
> Subject: Re: [PATCH] xen: introduce 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:
> > >
On Fri, Jul 10, 2020 at 10:23:22AM -0700, Stefano Stabellini wrote:
> 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
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
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())
> return true;
>
>
> xen_vring_use_dma would be
On Wed, Jul 01, 2020 at 10:34:53AM -0700, Stefano Stabellini wrote:
> 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
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
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 that?
>
> Subject: RE: [PATCH] xen: introduce xen_vring_use_dma
>
> On Mon, 29 Jun 2020, Peng Fan wrote:
> > > > If that is the case, how is it possible that virtio breaks on ARM
> > > > using the default dma_ops? The breakage is not Xen related (except
> > >
On Mon, 29 Jun 2020, Peng Fan wrote:
> > > If that is the case, how is it possible that virtio breaks on ARM
> > > using the default dma_ops? The breakage is not Xen related (except
> > > that Xen turns dma_ops on). The original message from Peng was:
> > >
> > > vring_map_one_sg ->
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:
>
> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma
>
> On Mon, Jun 29, 2020 at 06:25:41AM +, Peng Fan wrote:
> > > > > > Anyway, re-reading the last messages of the original thread
> > > > > > [1], it looks like Peng had a clear idea
On Mon, Jun 29, 2020 at 06:25:41AM +, Peng Fan wrote:
> > > > > Anyway, re-reading the last messages of the original thread [1],
> > > > > it looks like Peng had a clear idea on how to fix the general issue.
> > > > > Peng, what happened with that?
> > >
> > > We shrinked the rpmsg reserved
> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma
>
> On Mon, Jun 29, 2020 at 03:05:19AM +, 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:
&g
On Mon, Jun 29, 2020 at 03:05:19AM +, 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:
> > > > O
> Subject: Re: [PATCH] xen: introduce xen_vring_use_dma
>
> 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 2
> 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 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, 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 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 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
> >
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
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
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.
>
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