Le 13/04/2017 à 13:31, Michael Ellerman a écrit :
Christophe LEROY <christophe.le...@c-s.fr> writes:
Hi Rashmica,
Le 17/11/2016 à 13:03, Michael Ellerman a écrit :
On Fri, 2016-27-05 at 05:48:59 UTC, Rashmica Gupta wrote:
Useful to be able to dump the kernels page tables to check permissions
and memory types - derived from arm64's implementation.
Add a debugfs file to check the page tables. To use this the PPC_PTDUMP
config option must be selected.
Signed-off-by: Rashmica Gupta <rashm...@gmail.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/8eb07b187000d48152c4ef97f075bd
For your information, compilation fails on mpc885_ads_defconfig when we
activate PPC_PTDUMP:
CC arch/powerpc/mm/dump_linuxpagetables.o
arch/powerpc/mm/dump_linuxpagetables.c: In function 'walk_pagetables':
arch/powerpc/mm/dump_linuxpagetables.c:369:10: error: 'KERN_VIRT_START'
undeclared (first use in this function)
Yeah it's basically 64-bit only at the moment.
I have a TODO for it: https://github.com/linuxppc/linux/issues/88
But I haven't got around to doing it, maybe someone who has more
interest in 32-bit will have time before me ;)
Well, I just did it a few minutes ago.
Christophe
