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From: Jagannathan Raman <jag.raman@oracle.com>
The user container will shortly need access to the underlying vfio-user
proxy; set this up.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
---
hw/vfio-user/container.c | 43 +++++++++++++++++++++++++++++++---------
hw/vfio-user/container.h | 1 +
hw/vfio/container.c | 4 +++-
3 files changed, 38 insertions(+), 10 deletions(-)
diff --git a/hw/vfio-user/container.c b/hw/vfio-user/container.c
index c079d6f89b..0c487dbb92 100644
--- a/hw/vfio-user/container.c
+++ b/hw/vfio-user/container.c
@@ -55,15 +55,28 @@ static int vfio_user_query_dirty_bitmap(const VFIOConta=
inerBase *bcontainer,
=20
static bool vfio_user_setup(VFIOContainerBase *bcontainer, Error **errp)
{
- error_setg_errno(errp, ENOTSUP, "Not supported");
- return -ENOTSUP;
+ VFIOUserContainer *container =3D container_of(bcontainer, VFIOUserCont=
ainer,
+ bcontainer);
+
+ assert(container->proxy->dma_pgsizes !=3D 0);
+ bcontainer->pgsizes =3D container->proxy->dma_pgsizes;
+ bcontainer->dma_max_mappings =3D container->proxy->max_dma;
+
+ /* No live migration support yet. */
+ bcontainer->dirty_pages_supported =3D false;
+ bcontainer->max_dirty_bitmap_size =3D container->proxy->max_bitmap;
+ bcontainer->dirty_pgsizes =3D container->proxy->migr_pgsize;
+
+ return true;
}
=20
-static VFIOUserContainer *vfio_create_user_container(Error **errp)
+static VFIOUserContainer *vfio_create_user_container(VFIODevice *vbasedev,
+ Error **errp)
{
VFIOUserContainer *container;
=20
container =3D VFIO_IOMMU_USER(object_new(TYPE_VFIO_IOMMU_USER));
+ container->proxy =3D vbasedev->proxy;
return container;
}
=20
@@ -71,16 +84,18 @@ static VFIOUserContainer *vfio_create_user_container(Er=
ror **errp)
* Try to mirror vfio_connect_container() as much as possible.
*/
static VFIOUserContainer *
-vfio_connect_user_container(AddressSpace *as, Error **errp)
+vfio_connect_user_container(AddressSpace *as, VFIODevice *vbasedev,
+ Error **errp)
{
VFIOContainerBase *bcontainer;
VFIOUserContainer *container;
VFIOAddressSpace *space;
VFIOIOMMUClass *vioc;
+ int ret;
=20
space =3D vfio_get_address_space(as);
=20
- container =3D vfio_create_user_container(errp);
+ container =3D vfio_create_user_container(vbasedev, errp);
if (!container) {
goto put_space_exit;
}
@@ -91,11 +106,17 @@ vfio_connect_user_container(AddressSpace *as, Error **=
errp)
goto free_container_exit;
}
=20
+ ret =3D ram_block_uncoordinated_discard_disable(true);
+ if (ret) {
+ error_setg_errno(errp, -ret, "Cannot set discarding of RAM broken"=
);
+ goto unregister_container_exit;
+ }
+
vioc =3D VFIO_IOMMU_GET_CLASS(bcontainer);
assert(vioc->setup);
=20
if (!vioc->setup(bcontainer, errp)) {
- goto unregister_container_exit;
+ goto enable_discards_exit;
}
=20
vfio_address_space_insert(space, bcontainer);
@@ -120,6 +141,9 @@ listener_release_exit:
vioc->release(bcontainer);
}
=20
+enable_discards_exit:
+ ram_block_uncoordinated_discard_disable(false);
+
unregister_container_exit:
vfio_cpr_unregister_container(bcontainer);
=20
@@ -136,14 +160,15 @@ static void vfio_disconnect_user_container(VFIOUserCo=
ntainer *container)
{
VFIOContainerBase *bcontainer =3D &container->bcontainer;
VFIOIOMMUClass *vioc =3D VFIO_IOMMU_GET_CLASS(bcontainer);
+ VFIOAddressSpace *space =3D bcontainer->space;
+
+ ram_block_uncoordinated_discard_disable(false);
=20
memory_listener_unregister(&bcontainer->listener);
if (vioc->release) {
vioc->release(bcontainer);
}
=20
- VFIOAddressSpace *space =3D bcontainer->space;
-
vfio_cpr_unregister_container(bcontainer);
object_unref(container);
=20
@@ -177,7 +202,7 @@ static bool vfio_user_attach_device(const char *name, V=
FIODevice *vbasedev,
{
VFIOUserContainer *container;
=20
- container =3D vfio_connect_user_container(as, errp);
+ container =3D vfio_connect_user_container(as, vbasedev, errp);
if (container =3D=3D NULL) {
error_prepend(errp, "failed to connect proxy");
return false;
diff --git a/hw/vfio-user/container.h b/hw/vfio-user/container.h
index 24ce13bc2d..8a033d5598 100644
--- a/hw/vfio-user/container.h
+++ b/hw/vfio-user/container.h
@@ -16,6 +16,7 @@
/* MMU container sub-class for vfio-user. */
typedef struct VFIOUserContainer {
VFIOContainerBase bcontainer;
+ VFIOUserProxy *proxy;
} VFIOUserContainer;
=20
OBJECT_DECLARE_SIMPLE_TYPE(VFIOUserContainer, VFIO_IOMMU_USER);
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index ddb86edb65..797707d0fd 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -909,7 +909,9 @@ void vfio_put_base_device(VFIODevice *vbasedev)
QLIST_REMOVE(vbasedev, next);
vbasedev->group =3D NULL;
trace_vfio_put_base_device(vbasedev->fd);
- close(vbasedev->fd);
+ if (vbasedev->fd !=3D -1) {
+ close(vbasedev->fd);
+ }
}
=20
static int vfio_device_groupid(VFIODevice *vbasedev, Error **errp)
--=20
2.34.1