qemu-kvm/kvm-vfio-container-Move-iova_ranges-to-base-container.patch

From 882143ef30da4182f049eb8192e0fac317c372b3 Mon Sep 17 00:00:00 2001
From: Zhenzhong Duan <zhenzhong.duan@intel.com>
Date: Thu, 2 Nov 2023 15:12:40 +0800
Subject: [PATCH 015/101] vfio/container: Move iova_ranges to base container
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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: [14/67] 49f2e3c484b4c0c63be9aa4eb1bf08804dcb1ec3 (eauger1/centos-qemu-kvm)

Meanwhile remove the helper function vfio_free_container as it
only calls g_free now.

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 f79baf8c9575ac3193ca86ec508791c86d96b13e)
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/vfio/common.c                      |  5 +++--
 hw/vfio/container-base.c              |  3 +++
 hw/vfio/container.c                   | 19 ++++++-------------
 include/hw/vfio/vfio-common.h         |  1 -
 include/hw/vfio/vfio-container-base.h |  1 +
 5 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index be623e544b..8ef2e7967d 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -637,9 +637,10 @@ static void vfio_listener_region_add(MemoryListener *listener,
             goto fail;
         }
 
-        if (container->iova_ranges) {
+        if (bcontainer->iova_ranges) {
             ret = memory_region_iommu_set_iova_ranges(giommu->iommu_mr,
-                    container->iova_ranges, &err);
+                                                      bcontainer->iova_ranges,
+                                                      &err);
             if (ret) {
                 g_free(giommu);
                 goto fail;
diff --git a/hw/vfio/container-base.c b/hw/vfio/container-base.c
index 7f508669f5..0177f43741 100644
--- a/hw/vfio/container-base.c
+++ b/hw/vfio/container-base.c
@@ -54,6 +54,7 @@ void vfio_container_init(VFIOContainerBase *bcontainer, VFIOAddressSpace *space,
     bcontainer->error = NULL;
     bcontainer->dirty_pages_supported = false;
     bcontainer->dma_max_mappings = 0;
+    bcontainer->iova_ranges = NULL;
     QLIST_INIT(&bcontainer->giommu_list);
     QLIST_INIT(&bcontainer->vrdl_list);
 }
@@ -70,4 +71,6 @@ void vfio_container_destroy(VFIOContainerBase *bcontainer)
         QLIST_REMOVE(giommu, giommu_next);
         g_free(giommu);
     }
+
+    g_list_free_full(bcontainer->iova_ranges, g_free);
 }
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index c8088a8174..721c0d7375 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -308,7 +308,7 @@ bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info,
 }
 
 static bool vfio_get_info_iova_range(struct vfio_iommu_type1_info *info,
-                                     VFIOContainer *container)
+                                     VFIOContainerBase *bcontainer)
 {
     struct vfio_info_cap_header *hdr;
     struct vfio_iommu_type1_info_cap_iova_range *cap;
@@ -326,8 +326,8 @@ static bool vfio_get_info_iova_range(struct vfio_iommu_type1_info *info,
 
         range_set_bounds(range, cap->iova_ranges[i].start,
                          cap->iova_ranges[i].end);
-        container->iova_ranges =
-            range_list_insert(container->iova_ranges, range);
+        bcontainer->iova_ranges =
+            range_list_insert(bcontainer->iova_ranges, range);
     }
 
     return true;
@@ -475,12 +475,6 @@ static void vfio_get_iommu_info_migration(VFIOContainer *container,
     }
 }
 
-static void vfio_free_container(VFIOContainer *container)
-{
-    g_list_free_full(container->iova_ranges, g_free);
-    g_free(container);
-}
-
 static int vfio_connect_container(VFIOGroup *group, AddressSpace *as,
                                   Error **errp)
 {
@@ -560,7 +554,6 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as,
 
     container = g_malloc0(sizeof(*container));
     container->fd = fd;
-    container->iova_ranges = NULL;
     bcontainer = &container->bcontainer;
     vfio_container_init(bcontainer, space, &vfio_legacy_ops);
 
@@ -597,7 +590,7 @@ static int vfio_connect_container(VFIOGroup *group, AddressSpace *as,
             bcontainer->dma_max_mappings = 65535;
         }
 
-        vfio_get_info_iova_range(info, container);
+        vfio_get_info_iova_range(info, bcontainer);
 
         vfio_get_iommu_info_migration(container, info);
         g_free(info);
@@ -649,7 +642,7 @@ enable_discards_exit:
     vfio_ram_block_discard_disable(container, false);
 
 free_container_exit:
-    vfio_free_container(container);
+    g_free(container);
 
 close_fd_exit:
     close(fd);
@@ -693,7 +686,7 @@ static void vfio_disconnect_container(VFIOGroup *group)
 
         trace_vfio_disconnect_container(container->fd);
         close(container->fd);
-        vfio_free_container(container);
+        g_free(container);
 
         vfio_put_address_space(space);
     }
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index b1c9fe711b..b9e5a0e64b 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -82,7 +82,6 @@ typedef struct VFIOContainer {
     unsigned iommu_type;
     QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
     QLIST_HEAD(, VFIOGroup) group_list;
-    GList *iova_ranges;
 } VFIOContainer;
 
 typedef struct VFIOHostDMAWindow {
diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h
index 80e4a993c5..9658ffb526 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -48,6 +48,7 @@ typedef struct VFIOContainerBase {
     QLIST_HEAD(, VFIORamDiscardListener) vrdl_list;
     QLIST_ENTRY(VFIOContainerBase) next;
     QLIST_HEAD(, VFIODevice) device_list;
+    GList *iova_ranges;
 } VFIOContainerBase;
 
 typedef struct VFIOGuestIOMMU {
-- 
2.39.3