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Groups > linux.kernel > #1541420
| From | Segher Boessenkool <segher@kernel.crashing.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs |
| Date | 2016-12-13 20:50 +0100 |
| Message-ID | <sO1fj-5cf-9@gated-at.bofh.it> (permalink) |
| References | <sNZZT-4x7-17@gated-at.bofh.it> <sNZZT-4x7-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, Dec 13, 2016 at 07:19:41PM +0100, Christophe Leroy wrote: > At exception prologs, once SRR0 and SRR1 have been saved, MSR RI is > set to mark the interrupt as recoverable. > > MSR RI has to be unset before writing into SRR0 and SRR1 at exception > epilogs. Why? What goes wrong without this? Etc. Segher
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[RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs Christophe Leroy <christophe.leroy@c-s.fr> - 2016-12-13 19:30 +0100
Re: [RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs Segher Boessenkool <segher@kernel.crashing.org> - 2016-12-13 20:50 +0100
Re: [RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs christophe leroy <christophe.leroy@c-s.fr> - 2016-12-13 21:50 +0100
Re: [RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs Segher Boessenkool <segher@kernel.crashing.org> - 2016-12-14 00:00 +0100
Re: [RFC 1/2] powerpc/32: Unset MSR RI in exception epilogs Peter Zijlstra <peterz@infradead.org> - 2016-12-14 09:50 +0100
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