Merge branch 'devel'

[palacios.git] / kitten / user / liblwk / aspace.c

diff --git a/kitten/user/liblwk/aspace.c b/kitten/user/liblwk/aspace.c
new file mode 100644 (file)
index 0000000..176dd75
--- /dev/null
+++ b/kitten/user/liblwk/aspace.c
@@ -0,0 +1,58 @@
+/* Copyright (c) 2008, Sandia National Laboratories */
+
+#include <lwk/liblwk.h>
+
+int
+aspace_map_region(
+       id_t         id,
+       vaddr_t      start,
+       size_t       extent,
+       vmflags_t    flags,
+       vmpagesize_t pagesz,
+       const char * name,
+       paddr_t      pmem
+)
+{
+       int status;
+
+       if ((status = aspace_add_region(id, start, extent, flags, pagesz, name)))
+               return status;
+
+       if ((status = aspace_map_pmem(id, pmem, start, extent))) {
+               aspace_del_region(id, start, extent);
+               return status;
+       }
+
+       return 0;
+}
+
+int
+aspace_map_region_anywhere(
+       id_t         id,
+       vaddr_t *    start,
+       size_t       extent,
+       vmflags_t    flags,
+       vmpagesize_t pagesz,
+       const char * name,
+       paddr_t      pmem
+)
+{
+       int status;
+
+retry:
+       if ((status = aspace_find_hole(id, 0, extent, pagesz, start)))
+               return status;
+
+       if ((status = aspace_add_region(id, *start, extent, flags, pagesz, name))) {
+               if (status == -ENOTUNIQ)
+                       goto retry; /* we lost a race with someone */
+               return status;
+       }
+
+       if ((status = aspace_map_pmem(id, pmem, *start, extent))) {
+               aspace_del_region(id, *start, extent);
+               return status;
+       }
+
+       return 0;
+}