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HV: trace: Add nr of data and cpuid to trace_entry

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Later patch will refactor acrntrace to make trace data output as raw data(binary)
and introduce a new tool(acrntrace_format) to parse raw data to human-readable
file.

Adding nr of data and cpuid to trace_entry will make it easy for acrntrace_format
to parse data file and inditify which cpu this trace entry belong to.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
This commit is contained in:
Kaige Fu
2018-06-25 22:25:50 +08:00
committed by lijinxia
parent 1c605a4f50
commit bfe47a7a91
1 changed files with 12 additions and 6 deletions
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18
hypervisor/include/debug/trace.h
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@@ -53,7 +53,10 @@
/* sizeof(trace_entry) == 4 x 64bit */
struct trace_entry {
uint64_t tsc; /* TSC */
uint64_t id;
uint64_t id:48;
uint64_t n_data:8; /* nr of data in trace_entry */
uint64_t cpu:8; /* pcpu id of trace_entry */
union {
struct {
uint32_t a, b, c, d;
@@ -85,13 +88,15 @@ trace_check(uint16_t cpu_id, __unused int evid)
}
static inline void
_trace_put(uint16_t cpu_id, int evid, struct trace_entry *entry)
_trace_put(uint16_t cpu_id, int evid, int n_data, struct trace_entry *entry)
{
struct shared_buf *sbuf = (struct shared_buf *)
per_cpu(sbuf, cpu_id)[ACRN_TRACE];
entry->tsc = rdtsc();
entry->id = evid;
entry->n_data = n_data;
entry->cpu = cpu_id;
sbuf_put(sbuf, (uint8_t *)entry);
}
@@ -106,7 +111,7 @@ TRACE_2L(int evid, uint64_t e, uint64_t f)
entry.payload.fields_64.e = e;
entry.payload.fields_64.f = f;
_trace_put(cpu_id, evid, &entry);
_trace_put(cpu_id, evid, 2, &entry);
}
static inline void
@@ -123,7 +128,7 @@ TRACE_4I(int evid, uint32_t a, uint32_t b, uint32_t c,
entry.payload.fields_32.b = b;
entry.payload.fields_32.c = c;
entry.payload.fields_32.d = d;
_trace_put(cpu_id, evid, &entry);
_trace_put(cpu_id, evid, 4, &entry);
}
static inline void
@@ -142,7 +147,8 @@ TRACE_6C(int evid, uint8_t a1, uint8_t a2, uint8_t a3,
entry.payload.fields_8.a4 = a4;
entry.payload.fields_8.b1 = b1;
entry.payload.fields_8.b2 = b2;
_trace_put(cpu_id, evid, &entry);
/* payload.fields_8.b3/b4 not used, but is put in trace buf */
_trace_put(cpu_id, evid, 8, &entry);
}
#define TRACE_ENTER TRACE_16STR(TRACE_FUNC_ENTER, __func__)
@@ -168,7 +174,7 @@ TRACE_16STR(int evid, const char name[])
entry.payload.str[i] = name[i];
entry.payload.str[15] = 0;
_trace_put(cpu_id, evid, &entry);
_trace_put(cpu_id, evid, 16, &entry);
}
#else /* HV_DEBUG */