RE: Walking all the physical memory in an x86 system

[Jan Engelhardt]

>[Jon M. Hanson] I can read /dev/mem from a userspace application as root
>with no problems and print out what it sees. However, things are not so
>simple from a kernel module as I just can't call open() and read() on
>/dev/mem because no such functions are exported from the kernel. Is
>there a way to read the contents of /dev/mem from a kernel module?

You can use filp_open().


Jan Engelhardt
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