libqos: add malloc support

This is a very simple allocator for the PC platform.  It should
be possible to add backends for other platforms.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1366123521-4330-5-git-send-email-aliguori@us.ibm.com

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/libqos/malloc.h b/tests/libqos/malloc.h
new file mode 100644
index 0000000000..46f6000763
--- /dev/null
+++ b/tests/libqos/malloc.h
@@ -0,0 +1,38 @@
+/*
+ * libqos malloc support
+ *
+ * Copyright IBM, Corp. 2012-2013
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef LIBQOS_MALLOC_H
+#define LIBQOS_MALLOC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+typedef struct QGuestAllocator QGuestAllocator;
+
+struct QGuestAllocator
+{
+    uint64_t (*alloc)(QGuestAllocator *allocator, size_t size);
+    void (*free)(QGuestAllocator *allocator, uint64_t addr);
+};
+
+/* Always returns page aligned values */
+static inline uint64_t guest_alloc(QGuestAllocator *allocator, size_t size)
+{
+    return allocator->alloc(allocator, size);
+}
+
+static inline void guest_free(QGuestAllocator *allocator, uint64_t addr)
+{
+    allocator->alloc(allocator, addr);
+}
+
+#endif