linux/arch/riscv
Qinglin Pan 9f2ac64d6c
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: 8fbdccd2b1 ("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>
2022-10-27 14:55:58 -07:00
..
boot RISC-V Patches for the 6.1 Merge Window, Part 2 2022-10-14 11:21:11 -07:00
configs riscv: enable CD-ROM file systems in defconfig 2022-08-25 17:01:09 -07:00
errata Merge patch series "Some style cleanups for recent extension additions" 2022-10-13 08:46:31 -07:00
include riscv: jump_label: mark arguments as const to satisfy asm constraints 2022-10-25 23:09:45 -07:00
kernel RISC-V Patches for the 6.1 Merge Window, Part 2 2022-10-14 11:21:11 -07:00
kvm The first batch of KVM patches, mostly covering x86, which I 2022-10-09 09:39:55 -07:00
lib riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit 2022-08-10 14:06:31 -07:00
mm riscv: mm: add missing memcpy in kasan_init 2022-10-27 14:55:58 -07:00
net bpf, riscv: Support riscv jit to provide bpf_line_info 2022-06-02 16:26:01 -07:00
purgatory riscv/purgatory: Omit use of bin2c 2022-08-11 09:32:34 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig RISC-V Patches for the 6.1 Merge Window, Part 2 2022-10-14 11:21:11 -07:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Kconfig.erratas riscv: make t-head erratas depend on MMU 2022-09-17 01:48:22 -07:00
Kconfig.socs riscv: Kconfig: Style cleanups 2022-06-30 19:26:16 -07:00
Makefile RISC-V Patches for the 6.1 Merge Window, Part 2 2022-10-14 11:21:11 -07:00