linux-stable/arch/riscv/mm
Anup Patel d5fdade933
RISC-V: mm: Fix set_satp_mode() for platform not having Sv57
When Sv57 is not available the satp.MODE test in set_satp_mode() will
fail and lead to pgdir re-programming for Sv48. The pgdir re-programming
will fail as well due to pre-existing pgdir entry used for Sv57 and as
a result kernel fails to boot on RISC-V platform not having Sv57.

To fix above issue, we should clear the pgdir memory in set_satp_mode()
before re-programming.

Fixes: 011f09d120 ("riscv: mm: Set sv57 on defaultly")
Reported-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-04-21 15:10:39 -07:00
..
cacheflush.c RISC-V: Do not use cpumask data structure for hartid bitmap 2022-01-20 09:27:22 -08:00
context.c riscv: Implement sv48 support 2022-01-19 17:54:09 -08:00
extable.c riscv: extable: fix err reg writing in dedicated uaccess handler 2022-02-08 17:02:47 -08:00
fault.c RISC-V Patches for the 5.17 Merge Window, Part 1 2022-01-19 11:38:21 +02:00
hugetlbpage.c hugetlbfs: remove hugetlb_add_hstate() warning for existing hstate 2020-06-03 20:09:46 -07:00
init.c RISC-V: mm: Fix set_satp_mode() for platform not having Sv57 2022-04-21 15:10:39 -07:00
kasan_init.c RISC-V Patches for the 5.18 Merge Window, Part 1 2022-03-25 10:11:38 -07:00
Makefile riscv: Fix config KASAN && DEBUG_VIRTUAL 2022-03-03 15:32:41 -08:00
pageattr.c RISC-V Patches for the 5.11 Merge Window, Part 1 2020-12-18 10:43:07 -08:00
physaddr.c riscv: Fix DEBUG_VIRTUAL false warnings 2022-03-03 15:32:04 -08:00
ptdump.c riscv: Fix PTDUMP output now BPF region moved back to module region 2021-07-06 15:21:27 -07:00
tlbflush.c RISC-V: Do not use cpumask data structure for hartid bitmap 2022-01-20 09:27:22 -08:00