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Peter Anvin" Subject: [PATCH v4 27/36] x86: Implement the new page table range API Date: Wed, 15 Mar 2023 05:14:35 +0000 Message-Id: <20230315051444.3229621-28-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230315051444.3229621-1-willy@infradead.org> References: <20230315051444.3229621-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: DC5A240004 X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: stbek5xowmx1syx9gqyhwfph4q5btz5p X-HE-Tag: 1678857292-935980 X-HE-Meta: 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 gZCK1OuR fI8EQjaG53Zk4yX/fQvNDotVWu07acZY5Ymqnx1cd13IW0NTO4pWftlUCMASdsow1u8LV535ArTZLnbUJJWnk0v7Tfbkg4xqCHyN9A6WWjfTo3rkClCDZ3TPglhqkocuwLKCW9Lp2AIIAP5TW5V5Se5LMfn3gM5kBC2ShYpryolVHPI09YobwpqWJd6ADyvQt9My9D9VxR3hqjXqKwIp18Qm+YDhtKbJAwqasTlPQwVTv3Ustu3o0CQBxHPr0UfwFW1O2RyXI0FGpFUN+w47uWjxZr7h4miZXpaD3Ir5ygnJQK1lc43qEIZZNNV5PrYHlgFvDuK0QX0OCG6d36nH5RxBo9UawHCgEerj0sAA/JKUdVpw= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add PFN_PTE_SHIFT and a noop update_mmu_cache_range(). Signed-off-by: Matthew Wilcox (Oracle) Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: x86@kernel.org Cc: "H. Peter Anvin" Acked-by: Mike Rapoport (IBM) --- arch/x86/include/asm/pgtable.h | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 1031025730d0..b237878061c4 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -184,6 +184,8 @@ static inline int pte_special(pte_t pte) static inline u64 protnone_mask(u64 val); +#define PFN_PTE_SHIFT PAGE_SHIFT + static inline unsigned long pte_pfn(pte_t pte) { phys_addr_t pfn = pte_val(pte); @@ -1019,13 +1021,6 @@ static inline pud_t native_local_pudp_get_and_clear(pud_t *pudp) return res; } -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) -{ - page_table_check_ptes_set(mm, addr, ptep, pte, 1); - set_pte(ptep, pte); -} - static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { @@ -1291,6 +1286,10 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { } +static inline void update_mmu_cache_range(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, unsigned int nr) +{ +} static inline void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd) {