[UNIKRAFT/BALLOON v2 2/7] plat/drivers/include/balloon: Declared KVM driver inflate/deflate functions

[CezarCraciunoiu <cezar.craciunoiu@xxxxxxxxx>]

From: Cezar Craciunoiu <cezar.craciunoiu@xxxxxxxxx>

These methods represent the two basic functions of the balloon driver,
to inflate and to deflate the memory balloon. These are used by
the balloon.c file and implemented in the balloon_drv.c file.

Signed-off-by: Cezar Craciunoiu <cezar.craciunoiu@xxxxxxxxx>
---
 plat/drivers/include/balloon/balloon.h | 46 ++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 plat/drivers/include/balloon/balloon.h

diff --git a/plat/drivers/include/balloon/balloon.h 
b/plat/drivers/include/balloon/balloon.h
new file mode 100644
index 0000000..83b3b95
--- /dev/null
+++ b/plat/drivers/include/balloon/balloon.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Authors: Cason Schindler & Jack Raney <cason.j.schindler@xxxxxxxxx>
+ *          Cezar Craciunoiu <cezar.craciunoiu@xxxxxxxxx>
+ *
+ * Copyright (c) 2019, The University of Texas at Austin. All rights reserved.
+ *               2020, University Politehnica of Bucharest. All rights 
reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
+ */
+#ifndef _PLAT_DRV_BALLOON_H_
+#define _PLAT_DRV_BALLOON_H_
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+int deflate_balloon(uintptr_t *pages_to_guest, uint32_t num);
+
+int inflate_balloon(uintptr_t *pages_to_host, uint32_t num);
+
+#endif /* _PLAT_DRV_BALLOON_H_ */
-- 
2.20.1