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| author | Alexandre Ghiti <alexghiti@rivosinc.com> | 2024-01-28 15:04:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-16 21:10:53 +0300 |
| commit | f4b69db0efca10cd140a4478520f3835a56a898d (patch) | |
| tree | 5e053c53aab58526da7e64e0e9add1b037c5d4cc /arch/riscv | |
| parent | aceb4ab9689bdda6cf27988ce0c107f4ef6a558d (diff) | |
| download | linux-f4b69db0efca10cd140a4478520f3835a56a898d.tar.xz | |
riscv: Flush the tlb when a page directory is freed
[ Upstream commit 97cf301fa42e8ea6e0a24de97bc0abcdc87d9504 ]
The riscv privileged specification mandates to flush the TLB whenever a
page directory is modified, so add that to tlb_flush().
Fixes: c5e9b2c2ae82 ("riscv: Improve tlb_flush()")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240128120405.25876-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/tlb.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h index 1eb5682b2af6..50b63b5c15bd 100644 --- a/arch/riscv/include/asm/tlb.h +++ b/arch/riscv/include/asm/tlb.h @@ -16,7 +16,7 @@ static void tlb_flush(struct mmu_gather *tlb); static inline void tlb_flush(struct mmu_gather *tlb) { #ifdef CONFIG_MMU - if (tlb->fullmm || tlb->need_flush_all) + if (tlb->fullmm || tlb->need_flush_all || tlb->freed_tables) flush_tlb_mm(tlb->mm); else flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end, |