Messages in this thread | | | Subject | Re: [PATCH 1/3] mm: HVO: introduce helper function to update and flush pgtable | From | Nanyong Sun <> | Date | Mon, 18 Dec 2023 17:54:42 +0800 |
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On 2023/12/15 14:16, Kefeng Wang wrote: > > > On 2023/12/14 15:39, Nanyong Sun wrote: >> Add pmd/pte update and tlb flush helper function to update page >> table. This refactoring patch is designed to facilitate each >> architecture to implement its own special logic in preparation >> for the arm64 architecture to follow the necessary break-before-make >> sequence when updating page tables. >> >> Signed-off-by: Nanyong Sun <sunnanyong@huawei.com> >> --- >> mm/hugetlb_vmemmap.c | 55 ++++++++++++++++++++++++++++++++++---------- >> 1 file changed, 43 insertions(+), 12 deletions(-) >> >> diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c >> index 87818ee7f01d..49e8b351def3 100644 >> --- a/mm/hugetlb_vmemmap.c >> +++ b/mm/hugetlb_vmemmap.c >> @@ -45,6 +45,37 @@ struct vmemmap_remap_walk { >> unsigned long flags; >> }; >> +#ifndef vmemmap_update_pmd >> +static inline void vmemmap_update_pmd(unsigned long start, >> + pmd_t *pmd, pte_t *pgtable) > > pgtable -> ptep Hi Kefeng,
Thank you for your review on this patch set, I'll fix them and send out the v2 version later.
> >> +{ >> + pmd_populate_kernel(&init_mm, pmd, pgtable); >> +} >> +#endif >> + >> +#ifndef vmemmap_update_pte >> +static inline void vmemmap_update_pte(unsigned long addr, >> + pte_t *pte, pte_t entry) > > pte -> ptep > entry -> pte > >> +{ >> + set_pte_at(&init_mm, addr, pte, entry); >> +} >> +#endif > > .
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