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acm_call
2013 Jul 22
11
[PATCH] xen: arm: document which hypercalls (and subops) are supported on ARM
...ARM_H__
-/* hypercall calling convention
- * ----------------------------
+/*
+ * `incontents 50 arm_abi Hypercall Calling Convention
*
* A hypercall is issued using the ARM HVC instruction.
*
@@ -60,6 +60,68 @@
* hypercall arguments are always little endian.
*/
+/*
+ * `incontents 55 arm_hcall Supported Hypercalls
+ *
+ * Xen on ARM makes extensive use of hardware facilities and therefore
+ * only a subset of the potential hypercalls are required.
+ *
+ * Since ARM uses second stage paging any machine/physical addresses
+ * passed to hypercalls are Guest Physical Addresses (Intermediate...