xentrace/x86: PV guest tracing extensions.

From: George Dunlap <gdunlap@xensource.com>
Signed-off-by: Keir Fraser <keir@xensource.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/xen/include/asm-x86/trace.h b/xen/include/asm-x86/trace.h
new file mode 100644
index 0000000000..c8b13c4b86
--- /dev/null
+++ b/xen/include/asm-x86/trace.h
@@ -0,0 +1,46 @@
+#ifndef __ASM_TRACE_H__
+#define __ASM_TRACE_H__
+
+#include <asm/page.h>
+
+void __trace_pv_trap(int trapnr, unsigned long eip,
+                     int use_error_code, unsigned error_code);
+static inline void trace_pv_trap(int trapnr, unsigned long eip,
+                                 int use_error_code, unsigned error_code)
+{
+    if ( tb_init_done )
+        __trace_pv_trap(trapnr, eip, use_error_code, error_code);
+}
+
+void __trace_pv_page_fault(unsigned long addr, unsigned error_code);
+static inline void trace_pv_page_fault(unsigned long addr,
+                                       unsigned error_code)
+{
+    if ( tb_init_done )
+        __trace_pv_page_fault(addr, error_code);
+}
+
+void __trace_trap_one_addr(unsigned event, unsigned long va);
+static inline void trace_trap_one_addr(unsigned event, unsigned long va)
+{
+    if ( tb_init_done )
+        __trace_trap_one_addr(event, va);
+}
+
+void __trace_trap_two_addr(unsigned event, unsigned long va1,
+                           unsigned long va2);
+static inline void trace_trap_two_addr(unsigned event, unsigned long va1,
+                                       unsigned long va2)
+{
+    if ( tb_init_done )
+        __trace_trap_two_addr(event, va1, va2);
+}
+
+void __trace_ptwr_emulation(unsigned long addr, l1_pgentry_t npte);
+static inline void trace_ptwr_emulation(unsigned long addr, l1_pgentry_t npte)
+{
+    if ( tb_init_done )
+        __trace_ptwr_emulation(addr, npte);
+}
+
+#endif /* __ASM_TRACE_H__ */