[Xen-changelog] [xen-unstable] trace: allow for different sub-classes of TRC_PV_* tracepoints

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User David Vrabel <david.vrabel@xxxxxxxxxx>
# Date 1349259033 -3600
# Node ID d7de8495d21cc25e4ff3dbedd4b165d6b6ca0af3
# Parent  87bf99fad7a9f018530d13213f57610621838085
trace: allow for different sub-classes of TRC_PV_* tracepoints

We want to add additional sub-classes for TRC_PV tracepoints and to be
able to only capture these new sub-classes.  This cannot currently be
done as the existing tracepoints all use a sub-class of 0xf.

So, redefine the PV events to use a new sub-class.  All the current
tracepoints are tracing entry points to the hypervisor so the
sub-class is named TRC_PV_ENTRY.

This change does not affect xenalyze as that only looks at the main
class and the event number and does not use the sub-class field.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>
Committed-by: Keir Fraser <keir@xxxxxxx>
---


diff -r 87bf99fad7a9 -r d7de8495d21c tools/xentrace/formats
--- a/tools/xentrace/formats    Tue Oct 02 12:14:00 2012 +0200
+++ b/tools/xentrace/formats    Wed Oct 03 11:10:33 2012 +0100
@@ -82,28 +82,28 @@ 0x0010f001  CPU%(cpu)d  %(tsc)d (+%(relt
 0x0010f002  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_grant_unmap    [ domid = 
%(1)d ]
 0x0010f003  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_grant_transfer [ domid = 
%(1)d ]
 
-0x0020f001  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  hypercall  [ eip = 0x%(1)08x, 
eax = 0x%(2)08x ]
-0x0020f101  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  hypercall  [ rip = 
0x%(2)08x%(1)08x, eax = 0x%(3)08x ]
-0x0020f003  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  trap       [ eip = 0x%(1)08x, 
trapnr:error = 0x%(2)08x ]
-0x0020f103  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  trap       [ rip = 
0x%(2)08x%(1)08x, trapnr:error = 0x%(3)08x ]
-0x0020f004  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_fault [ eip = 0x%(1)08x, 
addr = 0x%(2)08x, error = 0x%(3)08x ]
-0x0020f104  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_fault [ rip = 
0x%(2)08x%(1)08x, addr = 0x%(4)08x%(3)08x, error = 0x%(5)08x ]
-0x0020f005  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  forced_invalid_op   [ eip = 
0x%(1)08x ]
-0x0020f105  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  forced_invalid_op   [ rip = 
0x%(2)08x%(1)08x ]
-0x0020f006  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_privop      [ eip = 
0x%(1)08x ]
-0x0020f106  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_privop      [ rip = 
0x%(2)08x%(1)08x ]
-0x0020f007  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_4G          [ eip = 
0x%(1)08x ]
-0x0020f107  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_4G          [ rip = 
0x%(2)08x%(1)08x ]
-0x0020f008  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  math_state_restore
-0x0020f108  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  math_state_restore
-0x0020f009  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  paging_fixup        [ eip = 
0x%(1)08x, addr = 0x%(2)08x ]
-0x0020f109  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  paging_fixup        [ rip = 
0x%(2)08x%(1)08x, addr = 0x%(4)08x%(3)08x ]
-0x0020f00a  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  gdt_ldt_mapping_fault  [ eip = 
0x%(1)08x, offset = 0x%(2)08x ]
-0x0020f10a  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  gdt_ldt_mapping_fault  [ rip = 
0x%(2)08x%(1)08x, offset = 0x%(4)08x%(3)08x ]
-0x0020f00b  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation      [ addr = 
0x%(3)08x, eip = 0x%(4)08x, npte = 0x%(2)08x%(1)08x ]
-0x0020f10b  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation      [ addr = 
0x%(4)08x%(3)08x, rip = 0x%(6)08x%(5)08x, npte = 0x%(2)08x%(1)08x ]
-0x0020f00c  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation_pae  [ addr = 
0x%(3)08x, eip = 0x%(4)08x, npte = 0x%(2)08x%(1)08x ]
-0x0020f10c  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation_pae  [ addr = 
0x%(4)08x%(3)08x, rip = 0x%(6)08x%(5)08x, npte = 0x%(2)08x%(1)08x ]
+0x00201001  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  hypercall  [ eip = 0x%(1)08x, 
eax = 0x%(2)08x ]
+0x00201101  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  hypercall  [ rip = 
0x%(2)08x%(1)08x, eax = 0x%(3)08x ]
+0x00201003  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  trap       [ eip = 0x%(1)08x, 
trapnr:error = 0x%(2)08x ]
+0x00201103  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  trap       [ rip = 
0x%(2)08x%(1)08x, trapnr:error = 0x%(3)08x ]
+0x00201004  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_fault [ eip = 0x%(1)08x, 
addr = 0x%(2)08x, error = 0x%(3)08x ]
+0x00201104  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  page_fault [ rip = 
0x%(2)08x%(1)08x, addr = 0x%(4)08x%(3)08x, error = 0x%(5)08x ]
+0x00201005  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  forced_invalid_op   [ eip = 
0x%(1)08x ]
+0x00201105  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  forced_invalid_op   [ rip = 
0x%(2)08x%(1)08x ]
+0x00201006  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_privop      [ eip = 
0x%(1)08x ]
+0x00201106  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_privop      [ rip = 
0x%(2)08x%(1)08x ]
+0x00201007  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_4G          [ eip = 
0x%(1)08x ]
+0x00201107  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  emulate_4G          [ rip = 
0x%(2)08x%(1)08x ]
+0x00201008  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  math_state_restore
+0x00201108  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  math_state_restore
+0x00201009  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  paging_fixup        [ eip = 
0x%(1)08x, addr = 0x%(2)08x ]
+0x00201109  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  paging_fixup        [ rip = 
0x%(2)08x%(1)08x, addr = 0x%(4)08x%(3)08x ]
+0x0020100a  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  gdt_ldt_mapping_fault  [ eip = 
0x%(1)08x, offset = 0x%(2)08x ]
+0x0020110a  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  gdt_ldt_mapping_fault  [ rip = 
0x%(2)08x%(1)08x, offset = 0x%(4)08x%(3)08x ]
+0x0020100b  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation      [ addr = 
0x%(3)08x, eip = 0x%(4)08x, npte = 0x%(2)08x%(1)08x ]
+0x0020110b  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation      [ addr = 
0x%(4)08x%(3)08x, rip = 0x%(6)08x%(5)08x, npte = 0x%(2)08x%(1)08x ]
+0x0020100c  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation_pae  [ addr = 
0x%(3)08x, eip = 0x%(4)08x, npte = 0x%(2)08x%(1)08x ]
+0x0020110c  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  ptwr_emulation_pae  [ addr = 
0x%(4)08x%(3)08x, rip = 0x%(6)08x%(5)08x, npte = 0x%(2)08x%(1)08x ]
 
 0x0040f001  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  shadow_not_shadow              
   [ gl1e = 0x%(2)08x%(1)08x, va = 0x%(3)08x, flags = 0x%(4)08x ]
 0x0040f101  CPU%(cpu)d  %(tsc)d (+%(reltsc)8d)  shadow_not_shadow              
   [ gl1e = 0x%(2)08x%(1)08x, va = 0x%(4)08x%(3)08x, flags = 0x%(5)08x ]
diff -r 87bf99fad7a9 -r d7de8495d21c xen/include/public/trace.h
--- a/xen/include/public/trace.h        Tue Oct 02 12:14:00 2012 +0200
+++ b/xen/include/public/trace.h        Wed Oct 03 11:10:33 2012 +0100
@@ -94,20 +94,19 @@
 #define TRC_MEM_POD_ZERO_RECLAIM    (TRC_MEM + 17)
 #define TRC_MEM_POD_SUPERPAGE_SPLINTER (TRC_MEM + 18)
 
+#define TRC_PV_ENTRY 0x00201000 /* Hypervisor entry points for PV guests. */
 
-#define TRC_PV_HYPERCALL             (TRC_PV +  1)
-#define TRC_PV_TRAP                  (TRC_PV +  3)
-#define TRC_PV_PAGE_FAULT            (TRC_PV +  4)
-#define TRC_PV_FORCED_INVALID_OP     (TRC_PV +  5)
-#define TRC_PV_EMULATE_PRIVOP        (TRC_PV +  6)
-#define TRC_PV_EMULATE_4GB           (TRC_PV +  7)
-#define TRC_PV_MATH_STATE_RESTORE    (TRC_PV +  8)
-#define TRC_PV_PAGING_FIXUP          (TRC_PV +  9)
-#define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV + 10)
-#define TRC_PV_PTWR_EMULATION        (TRC_PV + 11)
-#define TRC_PV_PTWR_EMULATION_PAE    (TRC_PV + 12)
-  /* Indicates that addresses in trace record are 64 bits */
-#define TRC_64_FLAG               (0x100) 
+#define TRC_PV_HYPERCALL             (TRC_PV_ENTRY +  1)
+#define TRC_PV_TRAP                  (TRC_PV_ENTRY +  3)
+#define TRC_PV_PAGE_FAULT            (TRC_PV_ENTRY +  4)
+#define TRC_PV_FORCED_INVALID_OP     (TRC_PV_ENTRY +  5)
+#define TRC_PV_EMULATE_PRIVOP        (TRC_PV_ENTRY +  6)
+#define TRC_PV_EMULATE_4GB           (TRC_PV_ENTRY +  7)
+#define TRC_PV_MATH_STATE_RESTORE    (TRC_PV_ENTRY +  8)
+#define TRC_PV_PAGING_FIXUP          (TRC_PV_ENTRY +  9)
+#define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV_ENTRY + 10)
+#define TRC_PV_PTWR_EMULATION        (TRC_PV_ENTRY + 11)
+#define TRC_PV_PTWR_EMULATION_PAE    (TRC_PV_ENTRY + 12)
 
 #define TRC_SHADOW_NOT_SHADOW                 (TRC_SHADOW +  1)
 #define TRC_SHADOW_FAST_PROPAGATE             (TRC_SHADOW +  2)
@@ -187,6 +186,14 @@
 #define TRC_HW_IRQ_UNMAPPED_VECTOR    (TRC_HW_IRQ + 0x7)
 #define TRC_HW_IRQ_HANDLED            (TRC_HW_IRQ + 0x8)
 
+/*
+ * Event Flags
+ *
+ * Some events (e.g, TRC_PV_TRAP and TRC_HVM_IOMEM_READ) have multiple
+ * record formats.  These event flags distinguish between the
+ * different formats.
+ */
+#define TRC_64_FLAG 0x100 /* Addresses are 64 bits (instead of 32 bits) */
 
 /* This structure represents a single trace buffer record. */
 struct t_rec {

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