Re: [PATCH] powerpc/mm: Fix UBSAN warning reported on hugetlb

2022-10-04 Thread Michael Ellerman
On Thu, 8 Sep 2022 12:54:40 +0530, Aneesh Kumar K.V wrote: > Powerpc architecture supports 16GB hugetlb pages with hash translation. For 4K > page size, this is implemented as a hugepage directory entry at PGD level and > for 64K it is implemented as a huge page pte at PUD level > > With 16GB huge

Re: [PATCH] powerpc/mm: Fix UBSAN warning reported on hugetlb

2022-09-08 Thread Christophe Leroy
Le 08/09/2022 à 09:24, Aneesh Kumar K.V a écrit : > Powerpc architecture supports 16GB hugetlb pages with hash translation. For 4K > page size, this is implemented as a hugepage directory entry at PGD level and > for 64K it is implemented as a huge page pte at PUD level > > With 16GB hugetlb siz

[PATCH] powerpc/mm: Fix UBSAN warning reported on hugetlb

2022-09-08 Thread Aneesh Kumar K.V
Powerpc architecture supports 16GB hugetlb pages with hash translation. For 4K page size, this is implemented as a hugepage directory entry at PGD level and for 64K it is implemented as a huge page pte at PUD level With 16GB hugetlb size, offset within a page is greater than 32 bits. Hence switch