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| author | Qinglin Pan <panqinglin2020@iscas.ac.cn> | 2022-10-09 16:30:50 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-10-27 14:55:58 -0700 |
| commit | 9f2ac64d6ca60db99132e08628ac2899f956a0ec (patch) | |
| tree | a7e71c75e82e41f423ffacb300bfaa1bf2dd9568 /arch/riscv/Kconfig | |
| parent | 389ec68c83ee142f2edde954751fb67dafb5be32 (diff) | |
riscv: mm: add missing memcpy in kasan_init
Hi Atish,
It seems that the panic is due to the missing memcpy during kasan_init.
Could you please check whether this patch is helpful?
When doing kasan_populate, the new allocated base_pud/base_p4d should
contain kasan_early_shadow_{pud, p4d}'s content. Add the missing memcpy
to avoid page fault when read/write kasan shadow region.
Tested on:
- qemu with sv57 and CONFIG_KASAN on.
- qemu with sv48 and CONFIG_KASAN on.
Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn>
Tested-by: Atish Patra <atishp@rivosinc.com>
Fixes: 8fbdccd2b173 ("riscv: mm: Support kasan for sv57")
Link: https://lore.kernel.org/r/20221009083050.3814850-1-panqinglin2020@iscas.ac.cn
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig')
0 files changed, 0 insertions, 0 deletions