ioctl: add a stub for decoding kvm related ioctls

* kvm.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* configure.ac (AC_CHECK_HEADERS): Add linux/kvm.h.
* defs.h (kvm_ioctl): New prototype.
* ioctl.c (ioctl_decode) HAVE_LINUX_KVM_H]: Use kvm_ioctl.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/kvm.c b/kvm.c
new file mode 100644
index 000000000..2917bbc91
--- /dev/null
+++ b/kvm.c
@@ -0,0 +1,45 @@
+/*
+ * Support for decoding of KVM_* ioctl commands.
+ *
+ * Copyright (c) 2017 Masatake YAMATO <yamato@redhat.com>
+ * Copyright (c) 2017 Red Hat, Inc.
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include "defs.h"
+
+#ifdef HAVE_LINUX_KVM_H
+# include <linux/kvm.h>
+
+int
+kvm_ioctl(struct tcb *const tcp, const unsigned int code, const kernel_ulong_t arg)
+{
+	switch (code) {
+	default:
+		return RVAL_DECODED;
+	}
+}
+
+#endif /* HAVE_LINUX_KVM_H */