Hi,

I have question on i82557b emulation in kvm.

I have run a proprietary operating system (Pharlap OS) in kvm. Part of the job 
has been porting driver for i8255x. During the job I discovered that kvm's 
emulation doesn't support a RNR interrupt (it is disabled in the code). 

Why is it disabled? I'm running heavily loaded application and I have to poll 
descriptor list instead of waiting for RNR interrupt. 

Thanks for answer

Michal Filka
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