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| author | Vasily Gorbik <gor@linux.ibm.com> | 2023-02-09 22:05:11 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-03-20 11:02:51 +0100 |
| commit | 557b19709da97bc93ea5cf61926ca05800c15a13 (patch) | |
| tree | f1213e5c5ba017bf3a3f490875cccb5614704793 /arch/s390/kernel/vmlinux.lds.S | |
| parent | s390/mm,pageattr: allow KASAN shadow memory (diff) | |
| download | linux-557b19709da97bc93ea5cf61926ca05800c15a13.tar.xz linux-557b19709da97bc93ea5cf61926ca05800c15a13.zip | |
s390/kasan: move shadow mapping to decompressor
Since regular paging structs are initialized in decompressor already
move KASAN shadow mapping to decompressor as well. This helps to avoid
allocating KASAN required memory in 1 large chunk, de-duplicate paging
structs creation code and start the uncompressed kernel with KASAN
instrumentation right away. This also allows to avoid all pitfalls
accidentally calling KASAN instrumented code during KASAN initialization.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/s390/kernel/vmlinux.lds.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index b653ba8d51e6..8d2288a5ba25 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -219,6 +219,13 @@ SECTIONS QUAD(init_mm) QUAD(swapper_pg_dir) QUAD(invalid_pg_dir) +#ifdef CONFIG_KASAN + QUAD(kasan_early_shadow_page) + QUAD(kasan_early_shadow_pte) + QUAD(kasan_early_shadow_pmd) + QUAD(kasan_early_shadow_pud) + QUAD(kasan_early_shadow_p4d) +#endif } :NONE /* Debugging sections. */ |