x86/mm: Fix dump_pagetables with Xen PV

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Commit 2ae27137b2 ("x86: mm: convert dump_pagetables to use
walk_page_range") broke Xen PV guests as the hypervisor reserved hole in
the memory map was not taken into account.

Fix that by starting the kernel range only at GUARD_HOLE_END_ADDR.

Fixes: 2ae27137b2 ("x86: mm: convert dump_pagetables to use walk_page_range")
Reported-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Julien Grall <julien@xen.org>
Link: https://lkml.kernel.org/r/20200221103851.7855-1-jgross@suse.com

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Juergen Gross 2020-02-21 11:38:51 +01:00 • committed by Thomas Gleixner

parent 99bcd4a6e5

commit bba42affa7

1 changed files with 1 additions and 6 deletions

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arch/x86/mm/dump_pagetables.c

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