1 files changed, 76 insertions, 15 deletions

diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c
index 5debf18..67f3190 100644
--- a/tests/libqos/malloc.c
+++ b/tests/libqos/malloc.c
@@ -16,6 +16,26 @@
 #include <inttypes.h>
 #include <glib.h>
 
+typedef QTAILQ_HEAD(MemList, MemBlock) MemList;
+
+typedef struct MemBlock {
+    QTAILQ_ENTRY(MemBlock) MLIST_ENTNAME;
+    uint64_t size;
+    uint64_t addr;
+} MemBlock;
+
+struct QGuestAllocator {
+    QAllocOpts opts;
+    uint64_t start;
+    uint64_t end;
+    uint32_t page_size;
+
+    MemList used;
+    MemList free;
+};
+
+#define DEFAULT_PAGE_SIZE 4096
+
 static void mlist_delete(MemList *list, MemBlock *node)
 {
     g_assert(list && node);
@@ -103,6 +123,21 @@ static void mlist_coalesce(MemList *head, MemBlock *node)
     } while (merge);
 }
 
+static MemBlock *mlist_new(uint64_t addr, uint64_t size)
+{
+    MemBlock *block;
+
+    if (!size) {
+        return NULL;
+    }
+    block = g_malloc0(sizeof(MemBlock));
+
+    block->addr = addr;
+    block->size = size;
+
+    return block;
+}
+
 static uint64_t mlist_fulfill(QGuestAllocator *s, MemBlock *freenode,
                                                                 uint64_t size)
 {
@@ -187,21 +222,6 @@ static void mlist_free(QGuestAllocator *s, uint64_t addr)
     mlist_coalesce(&s->free, node);
 }
 
-MemBlock *mlist_new(uint64_t addr, uint64_t size)
-{
-    MemBlock *block;
-
-    if (!size) {
-        return NULL;
-    }
-    block = g_malloc0(sizeof(MemBlock));
-
-    block->addr = addr;
-    block->size = size;
-
-    return block;
-}
-
 /*
  * Mostly for valgrind happiness, but it does offer
  * a chokepoint for debugging guest memory leaks, too.
@@ -268,3 +288,44 @@ void guest_free(QGuestAllocator *allocator, uint64_t addr)
         mlist_check(allocator);
     }
 }
+
+QGuestAllocator *alloc_init(uint64_t start, uint64_t end)
+{
+    QGuestAllocator *s = g_malloc0(sizeof(*s));
+    MemBlock *node;
+
+    s->start = start;
+    s->end = end;
+
+    QTAILQ_INIT(&s->used);
+    QTAILQ_INIT(&s->free);
+
+    node = mlist_new(s->start, s->end - s->start);
+    QTAILQ_INSERT_HEAD(&s->free, node, MLIST_ENTNAME);
+
+    s->page_size = DEFAULT_PAGE_SIZE;
+
+    return s;
+}
+
+QGuestAllocator *alloc_init_flags(QAllocOpts opts,
+                                  uint64_t start, uint64_t end)
+{
+    QGuestAllocator *s = alloc_init(start, end);
+    s->opts = opts;
+    return s;
+}
+
+void alloc_set_page_size(QGuestAllocator *allocator, size_t page_size)
+{
+    /* Can't alter the page_size for an allocator in-use */
+    g_assert(QTAILQ_EMPTY(&allocator->used));
+
+    g_assert(is_power_of_2(page_size));
+    allocator->page_size = page_size;
+}
+
+void alloc_set_flags(QGuestAllocator *allocator, QAllocOpts opts)
+{
+    allocator->opts |= opts;
+}