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| author | Alexandre Ghiti <alexandre.ghiti@canonical.com> | 2021-12-06 13:46:45 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-01-20 04:54:04 +0300 |
| commit | f7ae02333d13f598da6ff6b94cf643255707f752 (patch) | |
| tree | 79501e09f6e7b89f1d613fa37b50d24602aef2e4 /arch/riscv/include/asm/kasan.h | |
| parent | db1503d355a79d1d4255a9996f20e72848b74a56 (diff) | |
| download | linux-f7ae02333d13f598da6ff6b94cf643255707f752.tar.xz | |
riscv: Move KASAN mapping next to the kernel mapping
Now that KASAN_SHADOW_OFFSET is defined at compile time as a config,
this value must remain constant whatever the size of the virtual address
space, which is only possible by pushing this region at the end of the
address space next to the kernel mapping.
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/kasan.h')
| -rw-r--r-- | arch/riscv/include/asm/kasan.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/kasan.h b/arch/riscv/include/asm/kasan.h index b00f503ec124..257a2495145a 100644 --- a/arch/riscv/include/asm/kasan.h +++ b/arch/riscv/include/asm/kasan.h @@ -28,8 +28,8 @@ #define KASAN_SHADOW_SCALE_SHIFT 3 #define KASAN_SHADOW_SIZE (UL(1) << ((CONFIG_VA_BITS - 1) - KASAN_SHADOW_SCALE_SHIFT)) -#define KASAN_SHADOW_START KERN_VIRT_START -#define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) +#define KASAN_SHADOW_START (KASAN_SHADOW_END - KASAN_SHADOW_SIZE) +#define KASAN_SHADOW_END MODULES_LOWEST_VADDR #define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) void kasan_init(void); |