mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-28 21:33:52 +00:00
riscv: correct pt_level name via pgtable_l5/4_enabled
commite59e5e2754
upstream. The pt_level uses CONFIG_PGTABLE_LEVELS to display page table names. But if page mode is downgraded from kernel cmdline or restricted by the hardware in 64BIT, it will give a wrong name. Like, using no4lvl for sv39, ptdump named the 1G-mapping as "PUD" that should be "PGD": 0xffffffd840000000-0xffffffd900000000 0x00000000c0000000 3G PUD D A G . . W R V So select "P4D/PUD" or "PGD" via pgtable_l5/4_enabled to correct it. Fixes:e8a62cc26d
("riscv: Implement sv48 support") Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Song Shuai <suagrfillet@gmail.com> Link: https://lore.kernel.org/r/20230712115740.943324-1-suagrfillet@gmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20230830044129.11481-3-palmer@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
85efe51890
commit
c93d4b75f5
1 changed files with 3 additions and 0 deletions
|
@ -384,6 +384,9 @@ static int __init ptdump_init(void)
|
|||
|
||||
kernel_ptd_info.base_addr = KERN_VIRT_START;
|
||||
|
||||
pg_level[1].name = pgtable_l5_enabled ? "P4D" : "PGD";
|
||||
pg_level[2].name = pgtable_l4_enabled ? "PUD" : "PGD";
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(pg_level); i++)
|
||||
for (j = 0; j < ARRAY_SIZE(pte_bits); j++)
|
||||
pg_level[i].mask |= pte_bits[j].mask;
|
||||
|
|
Loading…
Reference in a new issue