Re: [PATCH v2 5/8] s390/pgtable: cleanup description of swp pte layout

2022-03-30 Thread Gerald Schaefer
On Tue, 29 Mar 2022 18:43:26 +0200 David Hildenbrand wrote: > Bit 52 and bit 55 don't have to be zero: they only trigger a > translation-specifiation exception if the PTE is marked as valid, which > is not the case for swap ptes. > > Document which bits are used for what, and which ones are

[PATCH v2 5/8] s390/pgtable: cleanup description of swp pte layout

2022-03-29 Thread David Hildenbrand
Bit 52 and bit 55 don't have to be zero: they only trigger a translation-specifiation exception if the PTE is marked as valid, which is not the case for swap ptes. Document which bits are used for what, and which ones are unused. Signed-off-by: David Hildenbrand ---