Add basic lu_save_all() shell

diff --git a/xen/common/kexec.c b/xen/common/kexec.c
index a78aa4f5b0c85680fbc40bfe7f09d7cbb11ee006..658fe3d3d45e802bdd2d313ad067f1dc1d54e18b 100644 (file)
--- a/xen/common/kexec.c
+++ b/xen/common/kexec.c
@@ -29,6 +29,7 @@
 #include <public/elfnote.h>
 #include <xsm/xsm.h>
 #include <xen/cpu.h>
+#include <xen/lu.h>
 #ifdef CONFIG_COMPAT
 #include <compat/kexec.h>
 #endif
@@ -407,6 +408,11 @@ static long kexec_reboot(void *_image)
 static long kexec_live_update(void *_image)
 {
     struct kexec_image *image = _image;
+    int ret;
+
+    ret = lu_save_all(image);
+    if (ret)
+        return ret;
 
     kexecing = TRUE;
 

diff --git a/xen/common/lu/Makefile b/xen/common/lu/Makefile
index 68991b3ca4b8e25e8a963450d602b7e7ab062fbf..7b7d975f653e722fa4665bf73d8ad6fb2bd567aa 100644 (file)
--- a/xen/common/lu/Makefile
+++ b/xen/common/lu/Makefile
@@ -1 +1 @@
-obj-y += stream.o
+obj-y += stream.o save.o

diff --git a/xen/common/lu/save.c b/xen/common/lu/save.c
new file mode 100644 (file)
index 0000000..c43962c
--- /dev/null
+++ b/xen/common/lu/save.c
@@ -0,0 +1,56 @@
+
+#include <xen/types.h>
+#include <xen/vmap.h>
+#include <xen/lu.h>
+#include <xen/kimage.h>
+#include <xen/sched.h>
+
+int lu_save_global(struct lu_stream *stream)
+{
+    return 0;
+}
+
+
+int lu_save_domain(struct lu_stream *stream, struct domain *d)
+{
+    return 0;
+}
+
+int lu_save_all(struct kexec_image *image)
+{
+    struct lu_stream stream;
+    struct domain *d;
+    int ret;
+
+    memset(&stream, 0, sizeof(stream));
+
+    ret = lu_save_global(&stream);
+
+    for_each_domain ( d )
+    {
+        if (ret)
+            break;
+
+        ret = lu_save_domain(&stream, d);
+    }
+
+    if (!ret)
+        ret = kimage_add_live_update_data(image,
+                          _mfn(virt_to_mfn(stream.pagelist)),
+                          stream.nr_pages);
+
+    if (ret)
+        lu_stream_free(&stream);
+
+    return ret;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */

diff --git a/xen/include/xen/lu.h b/xen/include/xen/lu.h
index 21ee1825d35c2eee9c2fbd1880af30ff8ced4e5f..f232a5695032d1d7d0a3c7cd1495f5abc7ab6afd 100644 (file)
--- a/xen/include/xen/lu.h
+++ b/xen/include/xen/lu.h
@@ -19,6 +19,9 @@ void lu_stream_end_reservation(struct lu_stream *stream, size_t size);
 int lu_stream_append(struct lu_stream *stream, const void *data, size_t size);
 void lu_stream_free(struct lu_stream *stream);
 
+struct kexec_image;
+int lu_save_all(struct kexec_image *image);
+
 #endif /* __XEN_LU_H__ */
 
 /*