Le 16/02/2023 à 00:11, Rohan McLure a écrit : > Support the page table check sanitiser on all PowerPC platforms. This > sanitiser works by serialising assignments, reassignments and clears of > page table entries at each level in order to ensure that anonymous > mappings have at most one writable consumer, and likewise that > file-backed mappings are not simultaneously also anonymous mappings. > > In order to support this infrastructure, a number of stubs must be > defined for all powerpc platforms. Additionally, seperate set_pte_at > and set_pte, to allow for internal, uninstrumented mappings.
This series doesn't apply, can you rebase if still applicable ? Thanks Christophe > > v8: > * Fix linux/page_table_check.h include in asm/pgtable.h breaking > 32-bit. > > v7: > * Remove use of extern in set_pte prototypes > * Clean up pmdp_collapse_flush macro > * Replace set_pte_at with static inline function > * Fix commit message for patch 7 > Link: > https://lore.kernel.org/linuxppc-dev/20230215020155.1969194-1-rmcl...@linux.ibm.com/ > > v6: > * Support huge pages and p{m,u}d accounting. > * Remove instrumentation from set_pte from kernel internal pages. > * 64s: Implement pmdp_collapse_flush in terms of __pmdp_collapse_flush > as access to the mm_struct * is required. > Link: > https://lore.kernel.org/linuxppc-dev/20230214015939.1853438-1-rmcl...@linux.ibm.com/ > > v5: > Link: > https://lore.kernel.org/linuxppc-dev/20221118002146.25979-1-rmcl...@linux.ibm.com/ > > Rohan McLure (7): > powerpc: mm: Separate set_pte, set_pte_at for internal, external use > powerpc/64s: mm: Introduce __pmdp_collapse_flush with mm_struct > argument > powerpc: mm: Replace p{u,m,4}d_is_leaf with p{u,m,4}_leaf > powerpc: mm: Implement p{m,u,4}d_leaf on all platforms > powerpc: mm: Add common pud_pfn stub for all platforms > powerpc: mm: Add p{te,md,ud}_user_accessible_page helpers > powerpc: mm: Support page table check > > arch/powerpc/Kconfig | 1 + > arch/powerpc/include/asm/book3s/32/pgtable.h | 17 +++- > arch/powerpc/include/asm/book3s/64/pgtable.h | 85 +++++++++++++------- > arch/powerpc/include/asm/book3s/pgtable.h | 3 +- > arch/powerpc/include/asm/nohash/32/pgtable.h | 12 ++- > arch/powerpc/include/asm/nohash/64/pgtable.h | 24 +++++- > arch/powerpc/include/asm/nohash/pgtable.h | 9 ++- > arch/powerpc/include/asm/pgtable.h | 60 +++++++++----- > arch/powerpc/kvm/book3s_64_mmu_radix.c | 12 +-- > arch/powerpc/mm/book3s64/hash_pgtable.c | 2 +- > arch/powerpc/mm/book3s64/pgtable.c | 16 ++-- > arch/powerpc/mm/book3s64/radix_pgtable.c | 24 +++--- > arch/powerpc/mm/nohash/book3e_pgtable.c | 2 +- > arch/powerpc/mm/pgtable.c | 9 +-- > arch/powerpc/mm/pgtable_32.c | 2 +- > arch/powerpc/mm/pgtable_64.c | 6 +- > arch/powerpc/xmon/xmon.c | 6 +- > 17 files changed, 197 insertions(+), 93 deletions(-) >
