On 4/23/25 15:45, Cédric Le Goater wrote:
On 4/9/25 15:48, John Levon wrote:
The vfio-user container will later need to hook into these callbacks;
set up vfio to use them, and optionally pass them through to the
container.
Signed-off-by: John Levon <john.le...@nutanix.com>
---
hw/vfio/listener.c | 28 +++++++++++++++++++++++++++
include/hw/vfio/vfio-container-base.h | 2 ++
2 files changed, 30 insertions(+)
diff --git a/hw/vfio/listener.c b/hw/vfio/listener.c
index 285ca97a8c..9ffc2deb2d 100644
--- a/hw/vfio/listener.c
+++ b/hw/vfio/listener.c
@@ -412,6 +412,32 @@ static bool vfio_get_section_iova_range(VFIOContainerBase
*bcontainer,
return true;
}
+static void vfio_listener_begin(MemoryListener *listener)
+{
+ VFIOContainerBase *bcontainer = container_of(listener, VFIOContainerBase,
+ listener);
+ void (*listener_begin)(VFIOContainerBase *bcontainer);
+
+ listener_begin = VFIO_IOMMU_GET_CLASS(bcontainer)->listener_begin;
+
+ if (listener_begin) {
+ listener_begin(bcontainer);
+ }
+}
+
+static void vfio_listener_commit(MemoryListener *listener)
+{
+ VFIOContainerBase *bcontainer = container_of(listener, VFIOContainerBase,
+ listener);
+ void (*listener_commit)(VFIOContainerBase *bcontainer);
+
+ listener_commit = VFIO_IOMMU_GET_CLASS(bcontainer)->listener_begin;
+
+ if (listener_commit) {
+ listener_commit(bcontainer);
+ }
+}
+
static void vfio_device_error_append(VFIODevice *vbasedev, Error **errp)
{
/*
@@ -1166,6 +1192,8 @@ static void vfio_listener_log_sync(MemoryListener
*listener,
static const MemoryListener vfio_memory_listener = {
.name = "vfio",
+ .begin = vfio_listener_begin,
+ .commit = vfio_listener_commit,
.region_add = vfio_listener_region_add,
.region_del = vfio_listener_region_del,
.log_global_start = vfio_listener_log_global_start,
diff --git a/include/hw/vfio/vfio-container-base.h
b/include/hw/vfio/vfio-container-base.h
index a441932be7..67373e8db0 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -120,6 +120,8 @@ struct VFIOIOMMUClass {
/* basic feature */
bool (*setup)(VFIOContainerBase *bcontainer, Error **errp);
+ void (*listener_begin)(VFIOContainerBase *bcontainer);
+ void (*listener_commit)(VFIOContainerBase *bcontainer);
Please add documentation for the new callbacks.
and it is not used in this series yet. So we can keep it for later.
Thanks,
C.