[PATCH v2 4/4] vdpa_sim: offer VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK
From: Eugenio Pérez <eperezma@redhat.com>
Date: 2023-06-09 09:29:17
Also in:
lkml
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Start offering the feature in the simulator. Other parent drivers can follow this code to offer it too. Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Shannon Nelson <redacted> --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index d343af4fa60e..76d41058add9 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c@@ -18,6 +18,7 @@ #include <linux/vdpa.h> #include <linux/vhost_iotlb.h> #include <uapi/linux/vdpa.h> +#include <uapi/linux/vhost_types.h> #include "vdpa_sim.h"
@@ -410,6 +411,11 @@ static u64 vdpasim_get_device_features(struct vdpa_device *vdpa) return vdpasim->dev_attr.supported_features; } +static u64 vdpasim_get_backend_features(const struct vdpa_device *vdpa) +{ + return BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK); +} + static int vdpasim_set_driver_features(struct vdpa_device *vdpa, u64 features) { struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
@@ -733,6 +739,7 @@ static const struct vdpa_config_ops vdpasim_config_ops = { .get_vq_align = vdpasim_get_vq_align, .get_vq_group = vdpasim_get_vq_group, .get_device_features = vdpasim_get_device_features, + .get_backend_features = vdpasim_get_backend_features, .set_driver_features = vdpasim_set_driver_features, .get_driver_features = vdpasim_get_driver_features, .set_config_cb = vdpasim_set_config_cb,
@@ -770,6 +777,7 @@ static const struct vdpa_config_ops vdpasim_batch_config_ops = { .get_vq_align = vdpasim_get_vq_align, .get_vq_group = vdpasim_get_vq_group, .get_device_features = vdpasim_get_device_features, + .get_backend_features = vdpasim_get_backend_features, .set_driver_features = vdpasim_set_driver_features, .get_driver_features = vdpasim_get_driver_features, .set_config_cb = vdpasim_set_config_cb,
--
2.31.1