1xentrace(8) Xen xentrace(8)
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6 xentrace - capture Xen trace buffer data
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9 xentrace [ OPTIONS ] [ FILE ]
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12 xentrace is used to capture trace buffer data from Xen. The data is
13 output in the following binary format (host endian):
14 CPU(uint) TSC(u64) EVENT(u32) D1 D2 D3 D4 D5 (all u32)
16 Where CPU is the processor number, TSC is the record's timestamp (the
18 value of the CPU cycle counter), EVENT is the event ID and D1...D5 are
19 the trace data.
20 Data is dumped onto the standard output (which must not be a TTY) or a
22 FILE specified on the command line.
23 The output should be parsed using the tool xentrace_format, which can
25 produce human-readable output in ASCII format.
26
28 -t l, --log-thresh=l
29 set the threshold number, l, of new records required to trigger a
30 write of all new records to the output
31 -s p, --poll-sleep=p
33 set the time, p, (in milliseconds) to sleep between polling the
34 buffers for new data.
35 -c [c|CPU-LIST|all], --cpu-mask=[c|CPU-LIST|all]
37 This can be: a hex value (of the form 0xNNNN...), or a set of cpu
38 ranges as described below, or the string all. Hex values are
39 limited to 32 bits. If not specified, the cpu-mask as set during
40 bootup will be constructed. If using the CPU-LIST it expects
41 decimal numbers, which may be specified as follows:
42 "0-3"
44 Trace only on CPUs 0 through 3
45 "0,2,5-7"
47 Trace only on CPUs 0, 2, and 5 through 7
48 "-3"
50 Trace only on CPUs 0 through 3
51 "-3,7"
53 Trace only on CPUs 0 through 3 and 7
54 "3-"
56 Trace only on CPUs 3 up to maximum numbers of CPUs the host has
57 If using all it will use all of the CPUs the host has.
59 -e mask, --evt-mask=mask
61 set event capture mask. If not specified the TRC_ALL will be used.
62 -?, --help
64 Give this help list
65 --usage
67 Give a short usage message
68 -V, --version
70 Print program version
71 Event Classes (Masks)
73 The following event classes (masks) can be used to filter the events
74 being gathered by xentrace:
75 ID Description
77 0x0001f000 TRC_GEN
79 0x0002f000 TRC_SCHED
80 0x0004f000 TRC_DOM0OP
81 0x0008f000 TRC_HVM
82 0x0010f000 TRC_MEM
83 0xfffff000 TRC_ALL
84 Event Subclasses (More Masks)
86 The following event subclasses (masks) can also be used to filter the
87 events being gathered by xentrace:
88 ID Description
90 0x00081000 TRC_HVM_ENTRYEXIT
92 0x00082000 TRC_HVM_HANDLER
93 Events
95 xentrace collects the following events from the trace buffer:
96 ID Description
98 0x0001f001 TRC_LOST_RECORDS
100 0x0002f001 TRC_SCHED_DOM_ADD
101 0x0002f002 TRC_SCHED_DOM_REM
102 0x0002f003 TRC_SCHED_SLEEP
103 0x0002f004 TRC_SCHED_WAKE
104 0x0002f005 TRC_SCHED_YIELD
105 0x0002f006 TRC_SCHED_BLOCK
106 0x0002f007 TRC_SCHED_SHUTDOWN
107 0x0002f008 TRC_SCHED_CTL
108 0x0002f009 TRC_SCHED_ADJDOM
109 0x0002f010 TRC_SCHED_SWITCH
110 0x0002f011 TRC_SCHED_S_TIMER_FN
111 0x0002f012 TRC_SCHED_T_TIMER_FN
112 0x0002f013 TRC_SCHED_DOM_TIMER_FN
113 0x0002f014 TRC_SCHED_SWITCH_INFPREV
114 0x0002f015 TRC_SCHED_SWITCH_INFNEXT
115 0x00081001 TRC_HVM_VMENTRY
117 0x00081002 TRC_HVM_VMEXIT
118 0x00082001 TRC_HVM_PF_XEN
119 0x00082002 TRC_HVM_PF_INJECT
120 0x00082003 TRC_HVM_INJ_EXC
121 0x00082004 TRC_HVM_INJ_VIRQ
122 0x00082005 TRC_HVM_REINJ_VIRQ
123 0x00082006 TRC_HVM_IO_READ
124 0x00082007 TRC_HVM_IO_WRITE
125 0x00082008 TRC_HVM_CR_READ
126 0x00082009 TRC_HVM_CR_WRITE
127 0x0008200A TRC_HVM_DR_READ
128 0x0008200B TRC_HVM_DR_WRITE
129 0x0008200C TRC_HVM_MSR_READ
130 0x0008200D TRC_HVM_MSR_WRITE
131 0x0008200E TRC_HVM_CPUID
132 0x0008200F TRC_HVM_INTR
133 0x00082010 TRC_HVM_NMI
134 0x00082011 TRC_HVM_SMI
135 0x00082012 TRC_HVM_VMMCALL
136 0x00082013 TRC_HVM_HLT
137 0x00082014 TRC_HVM_INVLPG
138 0x0010f001 TRC_MEM_PAGE_GRANT_MAP
140 0x0010f002 TRC_MEM_PAGE_GRANT_UNMAP
141 0x0010f003 TRC_MEM_PAGE_GRANT_TRANSFER
142
144 Mark A. Williamson <mark.a.williamson@intel.com>
145
147 xentrace_format(1)
1484.16.1 2022-07-12 xentrace(8)