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| author | Will Andrews <will@FreeBSD.org> | 2017-11-11 23:30:58 +0000 |
|---|---|---|
| committer | Will Andrews <will@FreeBSD.org> | 2017-11-11 23:30:58 +0000 |
| commit | c9057838bea6ead0dc94d937b5882134ab5435ad (patch) | |
| tree | 688fb18d3a236699d5ff50ef435dff1d59812d47 /lib/libkvm/kvm_private.h | |
| parent | 569aaa3b9707ba1e520c2063653946b58cd5cb7c (diff) | |
| download | src-c9057838bea6ead0dc94d937b5882134ab5435ad.tar.gz src-c9057838bea6ead0dc94d937b5882134ab5435ad.zip | |
libkvm: add kvm_walk_pages API.
This API allows callers to enumerate all known pages, including any
direct map & kernel map virtual addresses, physical addresses, size,
offset into the core, & protection configured.
For architectures that support direct map addresses, also generate pages
for any direct map only addresses that are not associated with kernel
map addresses.
Fix page size portability issue left behind from previous kvm page table
lookup interface.
Reviewed by: jhb
Sponsored by: Backtrace I/O
Differential Revision: https://reviews.freebsd.org/D12279
Notes
Notes:
svn path=/head/; revision=325728
Diffstat (limited to 'lib/libkvm/kvm_private.h')
| -rw-r--r-- | lib/libkvm/kvm_private.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/libkvm/kvm_private.h b/lib/libkvm/kvm_private.h index 03ae4cefb815..03c7ee45a620 100644 --- a/lib/libkvm/kvm_private.h +++ b/lib/libkvm/kvm_private.h @@ -44,6 +44,7 @@ struct kvm_arch { void (*ka_freevtop)(kvm_t *); int (*ka_kvatop)(kvm_t *, kvaddr_t, off_t *); int (*ka_native)(kvm_t *); + int (*ka_walk_pages)(kvm_t *, kvm_walk_pages_cb_t *, void *); }; #define KVM_ARCH(ka) DATA_SET(kvm_arch, ka) @@ -107,6 +108,17 @@ struct __kvm { uint32_t *pt_popcounts; unsigned int pt_page_size; unsigned int pt_word_size; + + /* Page & sparse map structures. */ + void *page_map; + uint32_t page_map_size; + off_t page_map_off; + void *sparse_map; +}; + +struct kvm_bitmap { + uint8_t *map; + u_long size; }; /* Page table lookup constants. */ @@ -137,6 +149,11 @@ _kvm64toh(kvm_t *kd, uint64_t val) return (be64toh(val)); } +int _kvm_bitmap_init(struct kvm_bitmap *, u_long, u_long *); +void _kvm_bitmap_set(struct kvm_bitmap *, u_long, unsigned int); +int _kvm_bitmap_next(struct kvm_bitmap *, u_long *); +void _kvm_bitmap_deinit(struct kvm_bitmap *); + void _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...) __printflike(3, 4); void _kvm_freeprocs(kvm_t *kd); @@ -154,4 +171,9 @@ int _kvm_probe_elf_kernel(kvm_t *, int, int); int _kvm_is_minidump(kvm_t *); int _kvm_read_core_phdrs(kvm_t *, size_t *, GElf_Phdr **); int _kvm_pt_init(kvm_t *, size_t, off_t, off_t, int, int); -off_t _kvm_pt_find(kvm_t *, uint64_t); +off_t _kvm_pt_find(kvm_t *, uint64_t, unsigned int); +int _kvm_visit_cb(kvm_t *, kvm_walk_pages_cb_t *, void *, u_long, + u_long, u_long, vm_prot_t, size_t, unsigned int); +int _kvm_pmap_init(kvm_t *, uint32_t, off_t); +void * _kvm_pmap_get(kvm_t *, u_long, size_t); +void * _kvm_map_get(kvm_t *, u_long, unsigned int); |