[Qemu-devel] [PATCH v3 04/12] vfio/pci: add notify framework based on IOMMUSVAContext

[Liu, Yi L]

This patch introduces a notify framework for IOMMUSVAContext.sva_notifiers.

Signed-off-by: Liu, Yi L <yi.l....@linux.intel.com>
---
 hw/vfio/common.c              | 1 +
 include/hw/vfio/vfio-common.h | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 06277d2..1cc96df 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1019,6 +1019,7 @@ static int vfio_connect_container(VFIOGroup *group, 
AddressSpace *as,
     container->fd = fd;
     QLIST_INIT(&container->giommu_mr_list);
     QLIST_INIT(&container->hostwin_list);
+    QLIST_INIT(&container->gsva_ctx_list);
     if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU) ||
         ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1v2_IOMMU)) {
         bool v2 = !!ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1v2_IOMMU);
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 702a085..4c16b4c 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -29,6 +29,7 @@
 #ifdef CONFIG_LINUX
 #include <linux/vfio.h>
 #endif
+#include "hw/core/pasid.h"
 
 #define ERR_PREFIX "vfio error: %s: "
 #define WARN_PREFIX "vfio warning: %s: "
@@ -88,6 +89,7 @@ typedef struct VFIOContainer {
      * future
      */
     QLIST_HEAD(, VFIOGuestIOMMUMR) giommu_mr_list;
+    QLIST_HEAD(, VFIOGuestIOMMUSVAContext) gsva_ctx_list;
     QLIST_HEAD(, VFIOHostDMAWindow) hostwin_list;
     QLIST_HEAD(, VFIOGroup) group_list;
     QLIST_ENTRY(VFIOContainer) next;
@@ -101,6 +103,13 @@ typedef struct VFIOGuestIOMMUMR {
     QLIST_ENTRY(VFIOGuestIOMMUMR) giommu_next;
 } VFIOGuestIOMMUMR;
 
+typedef struct VFIOGuestIOMMUSVAContext {
+    VFIOContainer *container;
+    IOMMUSVAContext *sva_ctx;
+    IOMMUSVANotifier n;
+    QLIST_ENTRY(VFIOGuestIOMMUSVAContext) gsva_ctx_next;
+} VFIOGuestIOMMUSVAContext;
+
 typedef struct VFIOHostDMAWindow {
     hwaddr min_iova;
     hwaddr max_iova;
-- 
1.9.1