linux/arch
Song Shuai e59e5e2754
riscv: correct pt_level name via pgtable_l5/4_enabled
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>
2023-10-31 19:15:51 -07:00
..
alpha Kbuild updates for v6.6 2023-09-05 11:01:47 -07:00
arc ARC updates for v6.6 2023-09-04 15:38:24 -07:00
arm ARM: 2023-09-07 13:52:20 -07:00
arm64 RISC-V Patches for the 6.6 Merge Window, Part 2 (try 2) 2023-09-09 14:25:11 -07:00
csky arch/csky 2nd patches for 6.6 2023-09-01 08:02:45 -07:00
hexagon Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
ia64 Kbuild updates for v6.6 2023-09-05 11:01:47 -07:00
loongarch LoongArch changes for v6.6 2023-09-08 12:16:52 -07:00
m68k ata changes for 6.6 2023-09-05 12:37:28 -07:00
microblaze Microblaze patches for 6.6-rc1 2023-09-05 10:15:22 -07:00
mips ARM: 2023-09-07 13:52:20 -07:00
nios2 Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
openrisc OpenRISC updates for 6.6 2023-09-05 10:09:31 -07:00
parisc ata changes for 6.6 2023-09-05 12:37:28 -07:00
powerpc ata changes for 6.6 2023-09-05 12:37:28 -07:00
riscv riscv: correct pt_level name via pgtable_l5/4_enabled 2023-10-31 19:15:51 -07:00
s390 Including fixes from netfilter and bpf. 2023-09-07 18:33:07 -07:00
sh sh updates for v6.6 2023-09-09 14:46:57 -07:00
sparc ata changes for 6.6 2023-09-05 12:37:28 -07:00
um This pull request contains the following changes for UML: 2023-09-04 11:32:21 -07:00
x86 Fix preemption delays in the SGX code, remove unnecessarily UAPI-exported code, 2023-09-10 10:39:31 -07:00
xtensa Xtensa updates for v6.6 2023-09-07 10:30:17 -07:00
.gitignore
Kconfig Add x86 shadow stack support 2023-08-31 12:20:12 -07:00