Re: [Qemu-arm] [PATCH v1 2/2] target-arm: Extend PAR format determination

[Edgar E. Iglesias]

On Mon, Sep 18, 2017 at 04:50:23PM +0100, Peter Maydell wrote:
> On 11 July 2017 at 11:38, Edgar E. Iglesias <address@hidden> wrote:
> > Another way could also be to have get_phys_addr() fill in generic
> > fields in the FaultInfo struct and then have a faultinfo_to_fsr
> > mapping function to populate FSR/PAR. Do you see any issues with that?
> 
> Edgar, did you ever have a go at implementing this?

Hi Peter,

No, I haven't looked at it yet.
I'm a bit behind on everything here so I probably won't get a chance
to look at it soonish...



> I'm currently running into a similar issue with M profile,
> where at the moment we stuff the information about what
> kind of fault the MPU generates into a v7PMSA format
> FSR value and reinterpret it into M profile exception
> types and fault status register bits later. This works
> OK, but for v8M we want to start reporting kinds of fault
> (like SecureFault) that don't have equivalents in v7PMSA
> at all, and maybe it would be better to clean this up rather
> than assigning arbitrary bogus fsr values for internal use...

I see, yes that sounds like a similar issue.
If you'd like to take over this, that'd be great :-)

Cheers,
Edgar