Changeset 7c5a8dd in mainline for kernel/arch/xen32/include/hypercall.h

Timestamp:

2006-08-01T23:34:02Z (18 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

adf7f9c

Parents:

5b23a82

Message:

xen32: proper virtual traps, domU asynchronous console

File:

• kernel/arch/xen32/include/hypercall.h (modified) (4 diffs)

kernel/arch/xen32/include/hypercall.h

@@ -41 +41 @@
         uint8_t flags;      /**< 0-3: privilege level; 4: clear event enable */
         uint16_t cs;        /**< Code selector */
-        uintptr_t address;  /**< Code offset */
+        void *address;      /**< Code offset */
 } trap_info_t;
+
+
+typedef struct {
+        evtchn_t port;
+} evtchn_send_t;
+
+typedef struct {
+        uint32_t cmd;
+        union {
+                evtchn_send_t send;
+    };
+} evtchn_op_t;
 
 
@@ -49 +61 @@
 #define XEN_SET_CALLBACKS               4
 #define XEN_UPDATE_VA_MAPPING   14
+#define XEN_EVENT_CHANNEL_OP    16
 #define XEN_VERSION                             17
 #define XEN_CONSOLE_IO                  18
@@ -79 +92 @@
 
 
+#define EVTCHNOP_SEND                   4
+
+
 #define UVMF_NONE                               0        /**< No flushing at all */
 #define UVMF_TLB_FLUSH                  1        /**< Flush entire TLB(s) */
@@ -227 +243 @@
 }
 
+static inline int xen_notify_remote(evtchn_t channel)
+{
+    evtchn_op_t op;
+        
+    op.cmd = EVTCHNOP_SEND;
+    op.send.port = channel;
+    return hypercall1(XEN_EVENT_CHANNEL_OP, &op);
+}
+
 #endif