Kaige Fu d85a0b70ed tools: acrntrace: give user hint when acrn trace devices not found ...

If module acrn_trace is configured as "m" and we don't insert it before
launching acrntrace tool, acrntrace will run normally instead of throw
out an error in current implementation. And no trace files are generated.
It will cause confusing here.

So, this patch throw out an error massage to user about the absence of acrn
trace devices.

BTW, this patch replaces cpuid/num related concept to devid/cnt which is more
suitable for /dev/acrn_trace_xxx.

Tracked-On: #1975
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Yan, Like <like.yan@intel.com>

2018-12-05 13:16:20 +08:00

1.9 KiB

Raw Blame History

View Raw