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Document pagemap futher

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Ciro Santilli
2017-08-04 08:21:20 +01:00
parent bb419de1fe
commit 1f4f7faeba
2 changed files with 23 additions and 6 deletions
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13
kernel_module/user/common.h
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@@ -7,12 +7,15 @@
#include <stdlib.h> /* size_t */
#include <unistd.h> /* pread, sysconf */
/* Format documented at:
* https://github.com/torvalds/linux/blob/v4.9/Documentation/vm/pagemap.txt
**/
typedef struct {
uint64_t pfn : 54;
unsigned int soft_dirty : 1;
unsigned int file_page : 1;
unsigned int swapped : 1;
unsigned int present : 1;
uint64_t pfn : 54;
unsigned int soft_dirty : 1;
unsigned int file_page : 1;
unsigned int swapped : 1;
unsigned int present : 1;
} PagemapEntry;
/* Parse the pagemap entry for the given virtual address.