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| author |   Juergen Gross <jgross@suse.com> | 2017-04-12 16:36:34 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2017-04-13 00:26:30 +0200 |
| commit | 84bbabc3a452e8085cfbd745ff0bff2b89074417 (patch) | |
| tree | fff877123fc551c7fd7e8002bda3ea19ad741de8 /mm/gup.c | |
| parent | x86/mpx, selftests: Only check bounds-vs-shadow when we keep shadow (diff) | |
| download | linux-dev-84bbabc3a452e8085cfbd745ff0bff2b89074417.tar.xz linux-dev-84bbabc3a452e8085cfbd745ff0bff2b89074417.zip | |
x86/mm: Fix dump pagetables for 4 levels of page tables
Commit fdd3d8ce0ea62 ("x86/dump_pagetables: Add support for 5-level
paging") introduced an error for dumping with only 4 levels by setting
PGD_LEVEL_MULT to a wrong value.
This is leading to e.g. addresses printed as "(null)" for ranges:
x86/mm: Found insecure W+X mapping at address (null)/(null)
Make PGD_LEVEL_MULT a multiple of PTRS_PER_P4D instead of PTRS_PER_PUD
Fixes: fdd3d8ce0ea62 ("x86/dump_pagetables: Add support for 5-level paging")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20170412143634.6846-1-jgross@suse.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'mm/gup.c')
0 files changed, 0 insertions, 0 deletions