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
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
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
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,
