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pagemap: was missing one bit in lkmc_pagemap_get_entry for pfn

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Credits to Phidelux:
https://stackoverflow.com/questions/6284810/proc-pid-pagemaps-and-proc-pid-maps-linux/45500208?noredirect=1#comment109030479_45500208
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2020-05-09 01:00:00 +00:00
parent 12ed05f893
commit 6275f70ed8
2 changed files with 8 additions and 5 deletions
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6
lkmc/pagemap.h
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@@ -12,7 +12,7 @@
* https://github.com/torvalds/linux/blob/v4.9/Documentation/vm/pagemap.txt
*/
typedef struct {
uint64_t pfn : 54;
uint64_t pfn : 55;
unsigned int soft_dirty : 1;
unsigned int file_page : 1;
unsigned int swapped : 1;
@@ -46,8 +46,8 @@ int lkmc_pagemap_get_entry(LkmcPagemapEntry *entry, int pagemap_fd, uintptr_t va
return 1;
}
}
entry->pfn = data & (((uint64_t)1 << 54) - 1);
entry->soft_dirty = (data >> 54) & 1;
entry->pfn = data & (((uint64_t)1 << 55) - 1);
entry->soft_dirty = (data >> 55) & 1;
entry->file_page = (data >> 61) & 1;
entry->swapped = (data >> 62) & 1;
entry->present = (data >> 63) & 1;