diff options
| author | Ritesh Harjani (IBM) <ritesh.list@gmail.com> | 2025-10-30 20:27:34 +0530 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-11-18 12:35:53 +0530 |
| commit | 3d44be297e7e01357b95dd13d2b335e6550ccfcd (patch) | |
| tree | 473835faacbf2ff9ab6dd931b20722c6509a841a /fs/proc/array.c | |
| parent | 6394f0e8abe7ca3132faa1321c97c53d0994aecc (diff) | |
powerpc/ptdump: Dump PXX level info for kernel_page_tables
This patch adds PGD/PUD/PMD/PTE level information while dumping kernel
page tables. Before this patch it was hard to identify which entries
belongs to which page table level e.g.
~ # dmesg |grep -i radix
[0.000000] radix-mmu: Mapped 0x0000000000000000-0x0000000005400000 with 2.00 MiB pages (exec)
[0.000000] radix-mmu: Mapped 0x0000000005400000-0x0000000040000000 with 2.00 MiB pages
[0.000000] radix-mmu: Mapped 0x0000000040000000-0x0000000100000000 with 1.00 GiB pages
[0.000000] radix-mmu: Initializing Radix MMU
Before:
---[ Start of kernel VM ]---
0xc000000000000000-0xc000000003ffffff XXX 64M r X pte valid present dirty accessed
0xc000000004000000-0xc00000003fffffff XXX 960M r w pte valid present dirty accessed
0xc000000040000000-0xc0000000ffffffff XXX 3G r w pte valid present dirty accessed
...
---[ vmemmap start ]---
0xc00c000000000000-0xc00c0000003fffff XXX 4M r w pte valid present dirty accessed
After:
---[ Start of kernel VM ]---
0xc000000000000000-0xc000000003ffffff XXX 64M PMD r X pte valid present dirty accessed
0xc000000004000000-0xc00000003fffffff XXX 960M PMD r w pte valid present dirty accessed
0xc000000040000000-0xc0000000ffffffff XXX 3G PUD r w pte valid present dirty accessed
...
---[ vmemmap start ]---
0xc00c000000000000-0xc00c0000003fffff XXX 4M PMD r w pte valid present dirty accessed
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/95defb675ee5607ef3923a1e6aeac39311b8fad4.1761834163.git.ritesh.list@gmail.com
Diffstat (limited to 'fs/proc/array.c')
0 files changed, 0 insertions, 0 deletions
