Michael Neuling writes:
> On Tue, 2018-09-25 at 22:00 +1000, Michael Ellerman wrote:
>> Michael Neuling writes:
>> > Current we store the userspace r1 to PACATMSCRATCH before finally
>> > saving it to the thread struct.
>> >
>> > In theory an exception could be taken here (like a machine check o
On Tue, 2018-09-25 at 22:00 +1000, Michael Ellerman wrote:
> Michael Neuling writes:
> > Current we store the userspace r1 to PACATMSCRATCH before finally
> > saving it to the thread struct.
> >
> > In theory an exception could be taken here (like a machine check or
> > SLB miss) that could write
Michael Neuling writes:
> Current we store the userspace r1 to PACATMSCRATCH before finally
> saving it to the thread struct.
>
> In theory an exception could be taken here (like a machine check or
> SLB miss) that could write PACATMSCRATCH and hence corrupt the
> userspace r1. The SLB fault curre
Current we store the userspace r1 to PACATMSCRATCH before finally
saving it to the thread struct.
In theory an exception could be taken here (like a machine check or
SLB miss) that could write PACATMSCRATCH and hence corrupt the
userspace r1. The SLB fault currently doesn't touch PACATMSCRATCH, bu
