[PATCH v2 08/27] vfio/container: Move hostwin_list in base container

[Zhenzhong Duan]

From: Eric Auger <eric.auger@redhat.com>

Move hostwin_list in base container. This conducts to
passing a base container to vfio_host_win_add/del and
vfio_find_hostwin.

No fucntional change intended.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 include/hw/vfio/vfio-common.h         | 12 ++----------
 include/hw/vfio/vfio-container-base.h |  8 ++++++++
 hw/vfio/common.c                      | 18 +++++++++---------
 hw/vfio/container-base.c              |  8 ++++++++
 hw/vfio/container.c                   | 18 +++++-------------
 5 files changed, 32 insertions(+), 32 deletions(-)

diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index b83ae4b3b6..85dbda296a 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -88,7 +88,6 @@ typedef struct VFIOLegacyContainer {
     uint64_t max_dirty_bitmap_size;
     unsigned long pgsizes;
     unsigned int dma_max_mappings;
-    QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
     QLIST_HEAD(, VFIOGroup) group_list;
     QLIST_HEAD(, VFIORamDiscardListener) vrdl_list;
     QLIST_HEAD(, VFIODevice) device_list;
@@ -104,13 +103,6 @@ typedef struct VFIORamDiscardListener {
     QLIST_ENTRY(VFIORamDiscardListener) next;
 } VFIORamDiscardListener;
 
-typedef struct VFIOHostDMAWindow {
-    hwaddr min_iova;
-    hwaddr max_iova;
-    uint64_t iova_pgsizes;
-    QLIST_ENTRY(VFIOHostDMAWindow) hostwin_next;
-} VFIOHostDMAWindow;
-
 typedef struct VFIODeviceOps VFIODeviceOps;
 
 typedef struct VFIODevice {
@@ -185,10 +177,10 @@ typedef struct VFIODisplay {
     } dmabuf;
 } VFIODisplay;
 
-void vfio_host_win_add(VFIOLegacyContainer *container,
+void vfio_host_win_add(VFIOContainer *bcontainer,
                        hwaddr min_iova, hwaddr max_iova,
                        uint64_t iova_pgsizes);
-int vfio_host_win_del(VFIOLegacyContainer *container, hwaddr min_iova,
+int vfio_host_win_del(VFIOContainer *bcontainer, hwaddr min_iova,
                       hwaddr max_iova);
 VFIOAddressSpace *vfio_get_address_space(AddressSpace *as);
 void vfio_put_address_space(VFIOAddressSpace *space);
diff --git a/include/hw/vfio/vfio-container-base.h 
b/include/hw/vfio/vfio-container-base.h
index 1f6d5fd229..03bffbff73 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -47,6 +47,13 @@ typedef struct VFIOGuestIOMMU {
     QLIST_ENTRY(VFIOGuestIOMMU) giommu_next;
 } VFIOGuestIOMMU;
 
+typedef struct VFIOHostDMAWindow {
+    hwaddr min_iova;
+    hwaddr max_iova;
+    uint64_t iova_pgsizes;
+    QLIST_ENTRY(VFIOHostDMAWindow) hostwin_next;
+} VFIOHostDMAWindow;
+
 typedef struct {
     unsigned long *bitmap;
     hwaddr size;
@@ -60,6 +67,7 @@ struct VFIOContainer {
     VFIOIOMMUBackendOpsClass *ops;
     VFIOAddressSpace *space;
     QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
+    QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
     QLIST_ENTRY(VFIOContainer) next;
 };
 
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 49cb5b6958..511f538c00 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -252,12 +252,12 @@ bool 
vfio_devices_all_running_and_mig_active(VFIOLegacyContainer *container)
     return true;
 }
 
-void vfio_host_win_add(VFIOLegacyContainer *container, hwaddr min_iova,
+void vfio_host_win_add(VFIOContainer *bcontainer, hwaddr min_iova,
                        hwaddr max_iova, uint64_t iova_pgsizes)
 {
     VFIOHostDMAWindow *hostwin;
 
-    QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+    QLIST_FOREACH(hostwin, &bcontainer->hostwin_list, hostwin_next) {
         if (ranges_overlap(hostwin->min_iova,
                            hostwin->max_iova - hostwin->min_iova + 1,
                            min_iova,
@@ -271,15 +271,15 @@ void vfio_host_win_add(VFIOLegacyContainer *container, 
hwaddr min_iova,
     hostwin->min_iova = min_iova;
     hostwin->max_iova = max_iova;
     hostwin->iova_pgsizes = iova_pgsizes;
-    QLIST_INSERT_HEAD(&container->hostwin_list, hostwin, hostwin_next);
+    QLIST_INSERT_HEAD(&bcontainer->hostwin_list, hostwin, hostwin_next);
 }
 
-int vfio_host_win_del(VFIOLegacyContainer *container,
+int vfio_host_win_del(VFIOContainer *bcontainer,
                       hwaddr min_iova, hwaddr max_iova)
 {
     VFIOHostDMAWindow *hostwin;
 
-    QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+    QLIST_FOREACH(hostwin, &bcontainer->hostwin_list, hostwin_next) {
         if (hostwin->min_iova == min_iova && hostwin->max_iova == max_iova) {
             QLIST_REMOVE(hostwin, hostwin_next);
             g_free(hostwin);
@@ -540,13 +540,13 @@ static void 
vfio_unregister_ram_discard_listener(VFIOLegacyContainer *container,
     g_free(vrdl);
 }
 
-static VFIOHostDMAWindow *vfio_find_hostwin(VFIOLegacyContainer *container,
+static VFIOHostDMAWindow *vfio_find_hostwin(VFIOContainer *bcontainer,
                                             hwaddr iova, hwaddr end)
 {
     VFIOHostDMAWindow *hostwin;
     bool hostwin_found = false;
 
-    QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+    QLIST_FOREACH(hostwin, &bcontainer->hostwin_list, hostwin_next) {
         if (hostwin->min_iova <= iova && end <= hostwin->max_iova) {
             hostwin_found = true;
             break;
@@ -659,7 +659,7 @@ static void vfio_listener_region_add(MemoryListener 
*listener,
         goto fail;
     }
 
-    hostwin = vfio_find_hostwin(container, iova, end);
+    hostwin = vfio_find_hostwin(bcontainer, iova, end);
     if (!hostwin) {
         error_setg(&err, "Container %p can't map guest IOVA region"
                    " 0x%"HWADDR_PRIx"..0x%"HWADDR_PRIx, container, iova, end);
@@ -842,7 +842,7 @@ static void vfio_listener_region_del(MemoryListener 
*listener,
         hwaddr pgmask;
         VFIOHostDMAWindow *hostwin;
 
-        hostwin = vfio_find_hostwin(container, iova, end);
+        hostwin = vfio_find_hostwin(bcontainer, iova, end);
         assert(hostwin); /* or region_add() would have failed */
 
         pgmask = (1ULL << ctz64(hostwin->iova_pgsizes)) - 1;
diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c
index f2a9a33465..12b256c70e 100644
--- a/hw/vfio/container-base.c
+++ b/hw/vfio/container-base.c
@@ -76,11 +76,13 @@ void vfio_container_init(VFIOContainer *bcontainer,
     bcontainer->ops = ops;
     bcontainer->space = space;
     QLIST_INIT(&bcontainer->giommu_list);
+    QLIST_INIT(&bcontainer->hostwin_list);
 }
 
 void vfio_container_destroy(VFIOContainer *bcontainer)
 {
     VFIOGuestIOMMU *giommu, *tmp;
+    VFIOHostDMAWindow *hostwin, *next;
 
     QLIST_REMOVE(bcontainer, next);
 
@@ -90,6 +92,12 @@ void vfio_container_destroy(VFIOContainer *bcontainer)
         QLIST_REMOVE(giommu, giommu_next);
         g_free(giommu);
     }
+
+    QLIST_FOREACH_SAFE(hostwin, &bcontainer->hostwin_list, hostwin_next,
+                       next) {
+        QLIST_REMOVE(hostwin, hostwin_next);
+        g_free(hostwin);
+    }
 }
 
 static const TypeInfo vfio_iommu_backend_ops_type_info = {
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index 7ca61a7d36..5d111f69c9 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -231,7 +231,7 @@ static int vfio_legacy_add_section_window(VFIOContainer 
*bcontainer,
     }
 
     /* For now intersections are not allowed, we may relax this later */
-    QLIST_FOREACH(hostwin, &container->hostwin_list, hostwin_next) {
+    QLIST_FOREACH(hostwin, &bcontainer->hostwin_list, hostwin_next) {
         if (ranges_overlap(hostwin->min_iova,
                            hostwin->max_iova - hostwin->min_iova + 1,
                            section->offset_within_address_space,
@@ -253,7 +253,7 @@ static int vfio_legacy_add_section_window(VFIOContainer 
*bcontainer,
         return ret;
     }
 
-    vfio_host_win_add(container, section->offset_within_address_space,
+    vfio_host_win_add(bcontainer, section->offset_within_address_space,
                       section->offset_within_address_space +
                       int128_get64(section->size) - 1, pgsize);
 #ifdef CONFIG_KVM
@@ -299,7 +299,7 @@ static void vfio_legacy_del_section_window(VFIOContainer 
*bcontainer,
 
     vfio_spapr_remove_window(container,
                              section->offset_within_address_space);
-    if (vfio_host_win_del(container,
+    if (vfio_host_win_del(bcontainer,
                           section->offset_within_address_space,
                           section->offset_within_address_space +
                           int128_get64(section->size) - 1) < 0) {
@@ -636,7 +636,6 @@ static int vfio_connect_container(VFIOGroup *group, 
AddressSpace *as,
     container->error = NULL;
     container->dirty_pages_supported = false;
     container->dma_max_mappings = 0;
-    QLIST_INIT(&container->hostwin_list);
     QLIST_INIT(&container->vrdl_list);
     bcontainer = &container->bcontainer;
     vfio_container_init(bcontainer, space, ops);
@@ -681,7 +680,7 @@ static int vfio_connect_container(VFIOGroup *group, 
AddressSpace *as,
          * information to get the actual window extent rather than assume
          * a 64-bit IOVA address space.
          */
-        vfio_host_win_add(container, 0, (hwaddr)-1, container->pgsizes);
+        vfio_host_win_add(bcontainer, 0, (hwaddr)-1, container->pgsizes);
 
         break;
     }
@@ -746,7 +745,7 @@ static int vfio_connect_container(VFIOGroup *group, 
AddressSpace *as,
         } else {
             /* The default table uses 4K pages */
             container->pgsizes = 0x1000;
-            vfio_host_win_add(container, info.dma32_window_start,
+            vfio_host_win_add(bcontainer, info.dma32_window_start,
                               info.dma32_window_start +
                               info.dma32_window_size - 1,
                               0x1000);
@@ -822,16 +821,9 @@ static void vfio_disconnect_container(VFIOGroup *group)
 
     if (QLIST_EMPTY(&container->group_list)) {
         VFIOAddressSpace *space = container->bcontainer.space;
-        VFIOHostDMAWindow *hostwin, *next;
 
         vfio_container_destroy(bcontainer);
 
-        QLIST_FOREACH_SAFE(hostwin, &container->hostwin_list, hostwin_next,
-                           next) {
-            QLIST_REMOVE(hostwin, hostwin_next);
-            g_free(hostwin);
-        }
-
         trace_vfio_disconnect_container(container->fd);
         close(container->fd);
         g_free(container);
-- 
2.34.1