Re: [RFCv2 07/37] KVM: s390: add new variants of UV CALL

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On Tue, 4 Feb 2020 13:30:02 +0100
Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx> wrote:

> On Tue, 4 Feb 2020 13:11:07 +0100
> Cornelia Huck <cohuck@xxxxxxxxxx> wrote:
> 
> [...]
> 
> >   
> > > +	rc = uv_call_sched(0, (u64)&uvcb);
> > > +	if (ret)
> > > +		*ret = *(u32 *)&uvcb.header.rc;    
> > 
> > Does that rc value in the block contain anything sensible if you
> > didn't get cc==0?  
> 
> yes, RC is always meaningful. 
> 
> CC == 0 implies RC == 1, which means success.
> CC == 1 implies RC != 1, which means something went wrong in some way
> 
> in theory you could always disregard CC and only check RC

Ok, thx.




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