[PATCH 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC

From: Lecopzer Chen
Date: Tue Jan 18 2022 - 04:45:14 EST


From: Lecopzer Chen <lecopzer@xxxxxxxxx>

Since the framework of KASAN_VMALLOC is well-developed,
It's easy to support for ARM that simply not to map shadow of VMALLOC
area on kasan_init.

This can fix ARM_MODULE_PLTS with KASAN and provide first step
to support CONFIG_VMAP_STACK in ARM.


Patch base on v5.16

Test on
1. Qemu with memory 2G and vmalloc=500M for 3G/1G mapping.
2. Qemu with memory 2G and vmalloc=500M for 3G/1G mapping + LPAE.
3. Qemu with memory 2G and vmalloc=500M for 2G/2G mapping.


Lecopzer Chen (2):
arm: kasan: support CONFIG_KASAN_VMALLOC
arm: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC

arch/arm/Kconfig | 2 ++
arch/arm/mm/kasan_init.c | 6 +++++-
2 files changed, 7 insertions(+), 1 deletion(-)

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2.25.1