init commit

arch/generic/kcall.h

@@ -0,0 +1,30 @@
+#ifndef _ELIBC_KCALL_H
+#define _ELIBC_KCALL_H
+
+/* Elyz kernel-call abstraction.
+ *
+ * Elyz has NO syscall instruction.  Communication with the kernel and PM
+ * actors happens through capability invocation — a mechanism defined by the
+ * kernel ABI (not finalised yet).  This header describes the abstract
+ * interface; the arch-specific implementation (arch/<arch>/kcall.h) fills in
+ * the concrete mechanism.
+ *
+ * Current state: STUB — returns -ENOSYS until the Elyz kernel ABI is
+ * stabilised.
+ */
+
+#define ELYZ_OP_ALLOCATE   1
+#define ELYZ_OP_FREE       2
+#define ELYZ_OP_CARVE      3
+#define ELYZ_OP_EXIT       4
+
+struct elyz_kcall {
+    unsigned long opcode;
+    unsigned long arg1;
+    unsigned long arg2;
+    unsigned short channel_id;
+};
+
+long __kcall(struct elyz_kcall *msg);
+
+#endif