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| author | David Vrabel <david.vrabel@citrix.com> | 2012-10-03 11:11:06 +0100 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2012-10-03 11:11:06 +0100 |
| commit | 86b35acb001f977eb1f82df6c07edaef173f4232 (patch) | |
| tree | a3c9bf5a4638b702a19a7b9ac630a1550d83883b /tools/xentrace | |
| parent | 4e6967a47ad4caa3af3ada3045fb278a53fd202b (diff) | |
| download | xen-86b35acb001f977eb1f82df6c07edaef173f4232.tar.gz xen-86b35acb001f977eb1f82df6c07edaef173f4232.tar.bz2 xen-86b35acb001f977eb1f82df6c07edaef173f4232.zip | |
trace: improve usefulness of hypercall trace record
Trace hypercalls using a more useful trace record format.
The EIP field is removed (it was always somewhere in the hypercall
page) and include selected hypercall arguments (e.g., the number of
calls in a multicall, and the number of PTE updates in an mmu_update
etc.). 12 bits in the first extra word are used to indicate which
arguments are present in the record and what size they are (32 or
64-bit).
This is an incompatible record format so a new event ID is used so
tools can distinguish between the two formats.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: George Dunlap <george.dunlap@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'tools/xentrace')
| -rw-r--r-- | tools/xentrace/formats | 1 | ||||
| -rw-r--r-- | tools/xentrace/xentrace_format | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/tools/xentrace/formats b/tools/xentrace/formats index 71220c096c..fa935c8d06 100644 --- a/tools/xentrace/formats +++ b/tools/xentrace/formats @@ -104,6 +104,7 @@ 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 ] +0x0020100d CPU%(cpu)d %(tsc)d (+%(reltsc)8d) hypercall [ op = 0x%(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 --git a/tools/xentrace/xentrace_format b/tools/xentrace/xentrace_format index e13b05b734..bdcab096ea 100644 --- a/tools/xentrace/xentrace_format +++ b/tools/xentrace/xentrace_format @@ -111,6 +111,8 @@ D7REC = "IIIIIII" last_tsc = [0] TRC_TRACE_IRQ = 0x1f004 +TRC_PV_HYPERCALL_V2 = 0x20100d + NR_VECTORS = 256 irq_measure = [{'count':0, 'tot_cycles':0, 'max_cycles':0}] * NR_VECTORS @@ -197,6 +199,10 @@ while not interrupted: d3 = irq_measure[d1]['tot_cycles'] d4 = irq_measure[d1]['max_cycles'] + if event == TRC_PV_HYPERCALL_V2: + # Mask off the argument present bits. + d1 &= 0x000fffff + #tsc = (tscH<<32) | tscL #print i, tsc |