Error Demotion in OVM?

OVM
1

Hi All,

Is it possible to have error demotion in OVM?
If I want to demote some of the checkers from ERROR to WARNING in negative testing. Is it possible in OVM?

if yes then pls paste the function to use.

Dhaval

2

In the OVM, you change the actions associated with a severity, an ID, or a severity/id pair; you don’t change the severity. Typically, you change the actions for a pair with this method:

set_report_severity_id_action(OVM_ERROR,"myID",OVM_DISPLAY|OVM_LOG);

This removes OVM_COUNT from the default action that counts messages to exit the simulation.

3

Well, there is a way, if you want to dig a little deeper into the reporting system.

The ovm_report_* functions delegate to a function called report() in the report handler. The severity level is an argument to report(). So, you could write your own delegation function where severity is a variable and change the value of that variable depending on your application.

For example

class my_report_component extends ovm_component;
 
  function new(string name, ovm_component parent);
    super.new(name, parent);
  endfunction
 
  virtual function void report(ovm_severity severity, string id, string msg, 
                               int verbosity=OVM_MEDIUM,
                               string filename="", int lineno=0);
    m_rh.report(severity, get_full_name(), id, msg, verbosity, 
                filename, lineno, this);
  endfunction
 
endclass

Now when you derive your components from my_report_component you can call report() and pass in the severity level as an argument. I’ve shown a default value for the verbosity argument, when you call report() you may want to supply an explicit verbosity argument that is consistent with the severity level argument.

– Mark

4

In reply to dave_59:

Hi Dave,
could you please elaborate this w/ an example? (I gather I am using older version of OVM).

5

In reply to m_r_m:

https://verificationacademy.com/forums/ovm/how-change-severity-message-ovm#reply-58879