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86cf69f1d8
Implement the function to sync changes in vmalloc and ioremap ranges to all page-tables. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-6-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
43 lines
921 B
C
43 lines
921 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
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#define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long p4dval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef union {
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pteval_t pte;
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pteval_t pte_low;
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} pte_t;
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#endif /* !__ASSEMBLY__ */
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#define SHARED_KERNEL_PMD 0
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#define ARCH_PAGE_TABLE_SYNC_MASK PGTBL_PMD_MODIFIED
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/*
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* traditional i386 two-level paging structure:
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*/
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#define PGDIR_SHIFT 22
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#define PTRS_PER_PGD 1024
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/*
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* the i386 is two-level, so we don't really have any
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* PMD directory physically.
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*/
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#define PTRS_PER_PTE 1024
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/* This covers all VMSPLIT_* and VMSPLIT_*_OPT variants */
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#define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT)
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#endif /* _ASM_X86_PGTABLE_2LEVEL_DEFS_H */
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