[PATCH v3 12/37] vfio/container: Move per container device list in base container

[Zhenzhong Duan]

VFIO Device is also changed to point to base container instead of
legacy container.

No fucntional change intended.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
[ clg: context changes ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 include/hw/vfio/vfio-common.h         |  3 +--
 include/hw/vfio/vfio-container-base.h |  1 +
 hw/vfio/common.c                      | 23 +++++++++++++++--------
 hw/vfio/container.c                   | 12 ++++++------
 4 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index d053c61872..f7a84dc8d0 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -90,7 +90,6 @@ typedef struct VFIOContainer {
     QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
     QLIST_HEAD(, VFIOGroup) group_list;
     QLIST_HEAD(, VFIORamDiscardListener) vrdl_list;
-    QLIST_HEAD(, VFIODevice) device_list;
     GList *iova_ranges;
 } VFIOContainer;
 
@@ -118,7 +117,7 @@ typedef struct VFIODevice {
     QLIST_ENTRY(VFIODevice) container_next;
     QLIST_ENTRY(VFIODevice) global_next;
     struct VFIOGroup *group;
-    VFIOContainer *container;
+    VFIOContainerBase *bcontainer;
     char *sysfsdev;
     char *name;
     DeviceState *dev;
diff --git a/include/hw/vfio/vfio-container-base.h 
b/include/hw/vfio/vfio-container-base.h
index ea8436a064..f1de1ef120 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -53,6 +53,7 @@ typedef struct VFIOContainerBase {
     bool dirty_pages_supported;
     QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
     QLIST_ENTRY(VFIOContainerBase) next;
+    QLIST_HEAD(, VFIODevice) device_list;
 } VFIOContainerBase;
 
 typedef struct VFIOGuestIOMMU {
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 7d9b87fc67..f8475348ad 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -145,7 +145,7 @@ void vfio_unblock_multiple_devices_migration(void)
 
 bool vfio_viommu_preset(VFIODevice *vbasedev)
 {
-    return vbasedev->container->bcontainer.space->as != &address_space_memory;
+    return vbasedev->bcontainer->space->as != &address_space_memory;
 }
 
 static void vfio_set_migration_error(int err)
@@ -179,6 +179,7 @@ bool vfio_device_state_is_precopy(VFIODevice *vbasedev)
 
 static bool vfio_devices_all_dirty_tracking(VFIOContainer *container)
 {
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
     MigrationState *ms = migrate_get_current();
 
@@ -187,7 +188,7 @@ static bool vfio_devices_all_dirty_tracking(VFIOContainer 
*container)
         return false;
     }
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         VFIOMigration *migration = vbasedev->migration;
 
         if (!migration) {
@@ -205,9 +206,10 @@ static bool vfio_devices_all_dirty_tracking(VFIOContainer 
*container)
 
 bool vfio_devices_all_device_dirty_tracking(VFIOContainer *container)
 {
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         if (!vbasedev->dirty_pages_supported) {
             return false;
         }
@@ -222,13 +224,14 @@ bool vfio_devices_all_device_dirty_tracking(VFIOContainer 
*container)
  */
 bool vfio_devices_all_running_and_mig_active(VFIOContainer *container)
 {
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
 
     if (!migration_is_active(migrate_get_current())) {
         return false;
     }
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         VFIOMigration *migration = vbasedev->migration;
 
         if (!migration) {
@@ -835,12 +838,13 @@ static bool vfio_section_is_vfio_pci(MemoryRegionSection 
*section,
                                      VFIOContainer *container)
 {
     VFIOPCIDevice *pcidev;
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
     Object *owner;
 
     owner = memory_region_owner(section->mr);
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         if (vbasedev->type != VFIO_DEVICE_TYPE_PCI) {
             continue;
         }
@@ -941,13 +945,14 @@ static void vfio_devices_dma_logging_stop(VFIOContainer 
*container)
     uint64_t buf[DIV_ROUND_UP(sizeof(struct vfio_device_feature),
                               sizeof(uint64_t))] = {};
     struct vfio_device_feature *feature = (struct vfio_device_feature *)buf;
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
 
     feature->argsz = sizeof(buf);
     feature->flags = VFIO_DEVICE_FEATURE_SET |
                      VFIO_DEVICE_FEATURE_DMA_LOGGING_STOP;
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         if (!vbasedev->dirty_tracking) {
             continue;
         }
@@ -1038,6 +1043,7 @@ static int vfio_devices_dma_logging_start(VFIOContainer 
*container)
 {
     struct vfio_device_feature *feature;
     VFIODirtyRanges ranges;
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
     int ret = 0;
 
@@ -1048,7 +1054,7 @@ static int vfio_devices_dma_logging_start(VFIOContainer 
*container)
         return -errno;
     }
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         if (vbasedev->dirty_tracking) {
             continue;
         }
@@ -1141,10 +1147,11 @@ int vfio_devices_query_dirty_bitmap(VFIOContainer 
*container,
                                     VFIOBitmap *vbmap, hwaddr iova,
                                     hwaddr size)
 {
+    VFIOContainerBase *bcontainer = &container->bcontainer;
     VFIODevice *vbasedev;
     int ret;
 
-    QLIST_FOREACH(vbasedev, &container->device_list, container_next) {
+    QLIST_FOREACH(vbasedev, &bcontainer->device_list, container_next) {
         ret = vfio_device_dma_logging_report(vbasedev, iova, size,
                                              vbmap->bitmap);
         if (ret) {
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index 6f02ca133e..3228dd2109 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -889,7 +889,7 @@ int vfio_attach_device(char *name, VFIODevice *vbasedev,
     int groupid = vfio_device_groupid(vbasedev, errp);
     VFIODevice *vbasedev_iter;
     VFIOGroup *group;
-    VFIOContainer *container;
+    VFIOContainerBase *bcontainer;
     int ret;
 
     if (groupid < 0) {
@@ -916,9 +916,9 @@ int vfio_attach_device(char *name, VFIODevice *vbasedev,
         return ret;
     }
 
-    container = group->container;
-    vbasedev->container = container;
-    QLIST_INSERT_HEAD(&container->device_list, vbasedev, container_next);
+    bcontainer = &group->container->bcontainer;
+    vbasedev->bcontainer = bcontainer;
+    QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev, container_next);
     QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
 
     return ret;
@@ -928,13 +928,13 @@ void vfio_detach_device(VFIODevice *vbasedev)
 {
     VFIOGroup *group = vbasedev->group;
 
-    if (!vbasedev->container) {
+    if (!vbasedev->bcontainer) {
         return;
     }
 
     QLIST_REMOVE(vbasedev, global_next);
     QLIST_REMOVE(vbasedev, container_next);
-    vbasedev->container = NULL;
+    vbasedev->bcontainer = NULL;
     trace_vfio_detach_device(vbasedev->name, group->groupid);
     vfio_put_base_device(vbasedev);
     vfio_put_group(group);
-- 
2.34.1