qemu-kvm/kvm-vfio-container-Move-per-container-device-list-in-bas.patch

From 0b3fbb6bf5c5bccec184829ff9454fd637c512b9 Mon Sep 17 00:00:00 2001
From: Zhenzhong Duan <zhenzhong.duan@intel.com>
Date: Thu, 2 Nov 2023 15:12:34 +0800
Subject: [PATCH 009/101] vfio/container: Move per container device list in
 base container
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

RH-Author: Eric Auger <eric.auger@redhat.com>
RH-MergeRequest: 211: IOMMUFD backend backport
RH-Jira: RHEL-19302 RHEL-21057
RH-Acked-by: Cédric Le Goater <clg@redhat.com>
RH-Acked-by: Sebastian Ott <sebott@redhat.com>
RH-Commit: [8/67] d546cc25f4424b2d42356765c860fdaf4a3ba652 (eauger1/centos-qemu-kvm)

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

No functional change intended.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
(cherry picked from commit 3e6015d1117579324b456aa169dfca06da9922cf)
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/vfio/common.c                      | 23 +++++++++++++++--------
 hw/vfio/container.c                   | 12 ++++++------
 include/hw/vfio/vfio-common.h         |  3 +--
 include/hw/vfio/vfio-container-base.h |  1 +
 4 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index b1a875ca93..9415395ed9 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) {
@@ -833,12 +836,13 @@ 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;
         }
@@ -939,13 +943,14 @@ 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;
         }
@@ -1036,6 +1041,7 @@ 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;
 
@@ -1046,7 +1052,7 @@ 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;
         }
@@ -1139,10 +1145,11 @@ 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 3ab74e2615..63a906de93 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -888,7 +888,7 @@ 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) {
@@ -915,9 +915,9 @@ 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;
@@ -927,13 +927,13 @@ 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);
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 60f2785fe0..9740cf9fbc 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 f244f003d0..7090962496 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -39,6 +39,7 @@ 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 {
-- 
2.39.3