Searched hist:"96 f9d4daf745205fe869e9e5ac23199ef11c5448" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/arch/riscv/mm/ |
| H A D | kasan_init.c | diff 96f9d4daf745205fe869e9e5ac23199ef11c5448 Fri Feb 03 01:52:28 CST 2023 Alexandre Ghiti <alexghiti@rivosinc.com> riscv: Rework kasan population functions
Our previous kasan population implementation used to have the final kasan
shadow region mapped with kasan_early_shadow_page, because we did not clean
the early mapping and then we had to populate the kasan region "in-place"
which made the code cumbersome.
So now we clear the early mapping, establish a temporary mapping while we
populate the kasan shadow region with just the kernel regions that will
be used.
This new version uses the "generic" way of going through a page table
that may be folded at runtime (avoid the XXX_next macros).
It was tested with outline instrumentation on an Ubuntu kernel
configuration successfully.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20230203075232.274282-3-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
|