[PATCH 1/2] powerpc/book3e-64: hv exceptions aren't MASKABLE
Benjamin Herrenschmidt
benh at kernel.crashing.org
Sat May 21 08:30:46 EST 2011
On Fri, 2011-05-20 at 14:00 -0500, Scott Wood wrote:
> In general we will not have EE soft-disabled or be napping when
> these exceptions happen, but still it is not correct.
>
> The guest doorbell exceptions can only be triggered with MSR[GS]=1,
> and thus for host kernel nesting purposes are base-level exceptions.
>
> Note that ehpriv and hypercall are triggerable from normal userspace.
> I tested that the process gets properly signalled in this case.
Please split the renaming of type->level from the actual functional
patch.
Cheers,
Ben.
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