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x86: implement the new page table range API

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Add PFN_PTE_SHIFT and a noop update_mmu_cache_range().

Link: https://lkml.kernel.org/r/20230802151406.3735276-29-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-08-02 16:13:56 +01:00 committed by Andrew Morton
parent fd8132e6e9
commit a3e1c9372c
1 changed files with 7 additions and 7 deletions
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14
arch/x86/include/asm/pgtable.h
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@ -185,6 +185,8 @@ 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);
@ -1020,13 +1022,6 @@ 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, 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)
{
@ -1292,6 +1287,11 @@ 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_fault *vmf,
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)
{