sef: Add fault injection (and EDFI) support.

include/minix/com.h

@@ -646,6 +646,9 @@
 #	define GCOV_BUFF_P  m1_p1
 #	define GCOV_BUFF_SZ m1_i1
 
+/* Common fault injection ctl request to all processes. */
+#define COMMON_REQ_FI_CTL (COMMON_RQ_BASE+2)
+
 /*===========================================================================*
  *                Messages for VM server				     *
  *===========================================================================*/

include/minix/ipc.h

@@ -691,6 +691,21 @@ typedef struct {
 } mess_linputdriver_input_event;
 _ASSERT_MSG_SIZE(mess_linputdriver_input_event);
 
+typedef struct {
+        cp_grant_id_t gid;
+	size_t size;
+
+        uint8_t padding[48];
+} mess_lsys_fi_ctl;
+_ASSERT_MSG_SIZE(mess_lsys_fi_ctl);
+
+typedef struct {
+        int status;
+
+        uint8_t padding[52];
+} mess_lsys_fi_reply;
+_ASSERT_MSG_SIZE(mess_lsys_fi_reply);
+
 typedef struct {
 	int what;
 	vir_bytes where;
@@ -1795,6 +1810,8 @@ typedef struct {
 		mess_linputdriver_input_event m_linputdriver_input_event;
 
 		mess_lsys_getsysinfo	m_lsys_getsysinfo;
+		mess_lsys_fi_ctl	m_lsys_fi_ctl;
+		mess_lsys_fi_reply	m_lsys_fi_reply;
 
 		mess_lsys_krn_schedctl	m_lsys_krn_schedctl;
 		mess_lsys_krn_schedule	m_lsys_krn_schedule;

include/minix/sef.h

@@ -233,6 +233,17 @@ void sef_cb_signal_handler_posix_default(int signo);
 #define sef_signal_debug_begin          sef_debug_begin
 #define sef_signal_debug_end            sef_debug_end
 
+/*===========================================================================*
+ *			     SEF Fault Injection			     *
+ *===========================================================================*/
+/* What to intercept. */
+#define INTERCEPT_SEF_FI_REQUESTS 1
+#define IS_SEF_FI_REQUEST(mp, status) \
+    (m_ptr->m_type == COMMON_REQ_FI_CTL)
+
+/* Fault injection tool support. */
+#define SEF_FI_ALLOW_EDFI               1
+
 #if !defined(USE_LIVEUPDATE)
 #undef INTERCEPT_SEF_LU_REQUESTS
 #undef SEF_LU_DEBUG