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| author | Vincent Chen <vincent.chen@sifive.com> | 2020-07-10 10:40:54 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-07-20 21:14:51 -0700 |
| commit | 4cb699d0447be8e0906539f93cbe41e19598ee5a (patch) | |
| tree | ade72673581d45914670b209542101bdabbc2abe /arch/riscv/mm/init.c | |
| parent | ba47d845d715a010f7b51f6f89bae32845e6acb7 (diff) | |
| download | linux-4cb699d0447be8e0906539f93cbe41e19598ee5a.tar.bz2 | |
riscv: kasan: use local_tlb_flush_all() to avoid uninitialized __sbi_rfence
It fails to boot the v5.8-rc4 kernel with CONFIG_KASAN because kasan_init
and kasan_early_init use uninitialized __sbi_rfence as executing the
tlb_flush_all(). Actually, at this moment, only the CPU which is
responsible for the system initialization enables the MMU. Other CPUs are
parking at the .Lsecondary_start. Hence the tlb_flush_all() is able to be
replaced by local_tlb_flush_all() to avoid using uninitialized
__sbi_rfence.
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/mm/init.c')
0 files changed, 0 insertions, 0 deletions