forked from mirrors/linux
99395ee3f7
The page table entry is passed in the 'val' argument to note_page(), however this was previously an "unsigned long" which is fine on 64-bit platforms. But for 32 bit x86 it is not always big enough to contain a page table entry which may be 64 bits. Change the type to u64 to ensure that it is always big enough. [akpm@linux-foundation.org: fix riscv] Reported-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20200521152308.33096-3-steven.price@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 lines
567 B
C
23 lines
567 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_PTDUMP_H
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#define _LINUX_PTDUMP_H
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#include <linux/mm_types.h>
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struct ptdump_range {
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unsigned long start;
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unsigned long end;
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};
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struct ptdump_state {
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/* level is 0:PGD to 4:PTE, or -1 if unknown */
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void (*note_page)(struct ptdump_state *st, unsigned long addr,
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int level, u64 val);
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void (*effective_prot)(struct ptdump_state *st, int level, u64 val);
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const struct ptdump_range *range;
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};
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void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd);
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#endif /* _LINUX_PTDUMP_H */
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