| Message ID | 20221006071500.15689-3-jgross@suse.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | xen/virtio: support grant based virtio on x86 | expand |
On 06.10.22 10:14, Juergen Gross wrote: Hello Juergen > With CONFIG_XEN_VIRTIO_FORCE_GRANT set the default backend domid to 0, > enabling to use xen_grant_dma_ops for those devices. > > Signed-off-by: Juergen Gross <jgross@suse.com> > --- > drivers/xen/grant-dma-ops.c | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> > > diff --git a/drivers/xen/grant-dma-ops.c b/drivers/xen/grant-dma-ops.c > index f29759d5301f..a00112235877 100644 > --- a/drivers/xen/grant-dma-ops.c > +++ b/drivers/xen/grant-dma-ops.c > @@ -349,6 +349,9 @@ void xen_grant_setup_dma_ops(struct device *dev) > if (dev->of_node) { > if (xen_dt_grant_setup_dma_ops(dev, data)) > goto err; > + } else if (IS_ENABLED(CONFIG_XEN_VIRTIO_FORCE_GRANT)) { > + dev_info(dev, "Using dom0 as backend\n"); > + data->backend_domid = 0; > } else { > /* XXX ACPI device unsupported for now */ > goto err;
On Thu, 6 Oct 2022, Oleksandr Tyshchenko wrote: > On 06.10.22 10:14, Juergen Gross wrote: > > Hello Juergen > > > With CONFIG_XEN_VIRTIO_FORCE_GRANT set the default backend domid to 0, > > enabling to use xen_grant_dma_ops for those devices. > > > > Signed-off-by: Juergen Gross <jgross@suse.com> > > --- > > drivers/xen/grant-dma-ops.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> > > diff --git a/drivers/xen/grant-dma-ops.c b/drivers/xen/grant-dma-ops.c > > index f29759d5301f..a00112235877 100644 > > --- a/drivers/xen/grant-dma-ops.c > > +++ b/drivers/xen/grant-dma-ops.c > > @@ -349,6 +349,9 @@ void xen_grant_setup_dma_ops(struct device *dev) > > if (dev->of_node) { > > if (xen_dt_grant_setup_dma_ops(dev, data)) > > goto err; > > + } else if (IS_ENABLED(CONFIG_XEN_VIRTIO_FORCE_GRANT)) { > > + dev_info(dev, "Using dom0 as backend\n"); > > + data->backend_domid = 0; > > } else { > > /* XXX ACPI device unsupported for now */ > > goto err; > > -- > Regards, > > Oleksandr Tyshchenko >
diff --git a/drivers/xen/grant-dma-ops.c b/drivers/xen/grant-dma-ops.c index f29759d5301f..a00112235877 100644 --- a/drivers/xen/grant-dma-ops.c +++ b/drivers/xen/grant-dma-ops.c @@ -349,6 +349,9 @@ void xen_grant_setup_dma_ops(struct device *dev) if (dev->of_node) { if (xen_dt_grant_setup_dma_ops(dev, data)) goto err; + } else if (IS_ENABLED(CONFIG_XEN_VIRTIO_FORCE_GRANT)) { + dev_info(dev, "Using dom0 as backend\n"); + data->backend_domid = 0; } else { /* XXX ACPI device unsupported for now */ goto err;
With CONFIG_XEN_VIRTIO_FORCE_GRANT set the default backend domid to 0, enabling to use xen_grant_dma_ops for those devices. Signed-off-by: Juergen Gross <jgross@suse.com> --- drivers/xen/grant-dma-ops.c | 3 +++ 1 file changed, 3 insertions(+)