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9655b9de15
Originally, we assume that the vmenter will sit at the first line
of the trace file. But if the vmexit comes earlier than vmenter.
The total vmexit cnt will be set as 0 by the first vmenter.
This patch fixes the issue by:
- Search the trace file to find the first vmexit entry and start to analyze here
and mark the TSC_BEGIN as the tsc of this vmexit.
- Inc the total vmexit cnt by 1 when meet the vmexit entry.
- Calc the vmexit duration when meet the vmenter in pair with the last vmexit.
Tracked-On: #4175
Acked-by: Yan, Like <like.yan@intel.com>
Signed-off-by: Kaige Fu <kaige.fu@intel.com>