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mm: fix 32bit kasan can't boot on T5W [1/1]

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PD#SWPL-151061

Problem:
If enabled 32bit kasan on T5W, kernel can't boot, no matter VMAP enabled or not.
This case can't happen on T5D.

Solution:
flush cache after bss cleared

Verify:
on T5W

Change-Id: Ib63e22c31c625953d7011225cf92557e1d424ac7
Signed-off-by: Lei Zhang <lei.zhang@amlogic.com>
This commit is contained in:
Lei Zhang
2023-12-29 15:24:49 +08:00
committed by gerrit autosubmit
parent 18951d0465
commit c971573694
1 changed files with 1 additions and 1 deletions
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auto_patch/common14-5.15/common/04_memory/0025-mm-fix-32bit-kasan-can-t-boot-on-T5W-1-1.patch
+1 -1
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@@ -33,7 +33,7 @@ index ae5f69292a11..f271626c9888 100644
mov r1, #0
bl __memset @ clear .bss
+#if defined (CONFIG_KASAN) && defined (CONFIG_AMLOGIC_VMAP)
+#if defined (CONFIG_KASAN)
+ /* After bss cleard, kasan_early_shadow_page are 0 in cache
+ * But on A55 it's physical memory keeps random data, this
+ * physical page will be mapped to shadow memory very soon(few