Michael S. Tsirkin
2023-Jun-09 16:13 UTC
[PATCH v2 2/4] vdpa: accept VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature
On Fri, Jun 09, 2023 at 11:21:25AM +0200, Eugenio P?rez wrote:> Accepting VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature if > userland sets it. > > Signed-off-by: Eugenio P?rez <eperezma at redhat.com> > Acked-by: Shannon Nelson <shannon.nelson at amd.com>I don't get it, so all vdpa devices accept this automatically? Should this not be up to the parent?> --- > drivers/vhost/vdpa.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index bf77924d5b60..a3204406b73d 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -680,7 +680,8 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, > return -EFAULT; > if (features & ~(VHOST_VDPA_BACKEND_FEATURES | > BIT_ULL(VHOST_BACKEND_F_SUSPEND) | > - BIT_ULL(VHOST_BACKEND_F_RESUME))) > + BIT_ULL(VHOST_BACKEND_F_RESUME) | > + BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK))) > return -EOPNOTSUPP; > if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPEND)) && > !vhost_vdpa_can_suspend(v)) > -- > 2.31.1