From: "Maciej S. Szmigiero" <maciej.szmigi...@oracle.com>
Add VFIOStateBuffer(s) types and the associated methods.
These store received device state buffers and config state waiting to get
loaded into the device.
Signed-off-by: Maciej S. Szmigiero <maciej.szmigi...@oracle.com>
---
hw/vfio/migration.c | 54 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index 715182c4f810..40cbe1be687d 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -289,6 +289,60 @@ static bool vfio_load_config_after_iter(VFIODevice
*vbasedev)
#endif
}
+/* type safety */
+typedef struct VFIOStateBuffers {
+ GArray *array;
+} VFIOStateBuffers;
+
+typedef struct VFIOStateBuffer {
+ bool is_present;
+ char *data;
+ size_t len;
+} VFIOStateBuffer;
+
+static void vfio_state_buffer_clear(gpointer data)
+{
+ VFIOStateBuffer *lb = data;
+
+ if (!lb->is_present) {
+ return;
+ }
+
+ g_clear_pointer(&lb->data, g_free);
+ lb->is_present = false;
+}
+
+static void vfio_state_buffers_init(VFIOStateBuffers *bufs)
+{
+ bufs->array = g_array_new(FALSE, TRUE, sizeof(VFIOStateBuffer));
+ g_array_set_clear_func(bufs->array, vfio_state_buffer_clear);
+}
+
+static void vfio_state_buffers_destroy(VFIOStateBuffers *bufs)
+{
+ g_clear_pointer(&bufs->array, g_array_unref);
+}
+
+static void vfio_state_buffers_assert_init(VFIOStateBuffers *bufs)
+{
+ assert(bufs->array);
+}
+
+static guint vfio_state_buffers_size_get(VFIOStateBuffers *bufs)
+{
+ return bufs->array->len;
+}
+
+static void vfio_state_buffers_size_set(VFIOStateBuffers *bufs, guint size)
+{
+ g_array_set_size(bufs->array, size);
+}
+
+static VFIOStateBuffer *vfio_state_buffers_at(VFIOStateBuffers *bufs, guint
idx)
+{
+ return &g_array_index(bufs->array, VFIOStateBuffer, idx);
+}
+
static int vfio_save_device_config_state(QEMUFile *f, void *opaque,
Error **errp)
{
