Re: [PATCH v14 09/19] x86/mm: x86/sgx: Signal SEGV_SGXERR for #PFs w/ PF_SGX

[Jarkko Sakkinen]

On Tue, Sep 25, 2018 at 03:53:48PM -0700, Andy Lutomirski wrote:
> Minor nit:
> 
> On Tue, Sep 25, 2018 at 6:12 AM Jarkko Sakkinen
> <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
> >
> > From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
> >
> 
> > by (c) as the kernel doesn't really have any other reasonable option,
> > e.g. we could kill the task or panic, but neither is warranted.
> 
> Not killing the task is quite nice, but...
> 
> > +       /*
> > +        * Access is blocked by the Enclave Page Cache Map (EPCM),
> > +        * i.e. the access is allowed by the PTE but not the EPCM.
> > +        * This usually happens when the EPCM is yanked out from
> > +        * under us, e.g. by hardware after a suspend/resume cycle.
> > +        * In any case, there is nothing that can be done by the
> > +        * kernel to resolve the fault (short of killing the task).
> 
> Maybe s/killing the task/sending a signal/?

Agreed. Thanks. 

/Jarkko