Messages in this thread | | | From | Andrey Konovalov <> | Date | Fri, 8 Jan 2021 19:30:33 +0100 | Subject | Re: [PATCH 0/3] arm64: kasan: support CONFIG_KASAN_VMALLOC |
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On Sun, Jan 3, 2021 at 6:12 PM Lecopzer Chen <lecopzer@gmail.com> wrote: > > Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > ("kasan: support backing vmalloc space with real shadow memory") > > Acroding to how x86 ported it [1], they early allocated p4d and pgd, > but in arm64 I just simulate how KAsan supports MODULES_VADDR in arm64 > by not to populate the vmalloc area except for kimg address. > > Test environment: > 4G and 8G Qemu virt, > 39-bit VA + 4k PAGE_SIZE with 3-level page table, > test by lib/test_kasan.ko and lib/test_kasan_module.ko > > It also works in Kaslr with CONFIG_RANDOMIZE_MODULE_REGION_FULL, > but not test for HW_TAG(I have no proper device), thus keep > HW_TAG and KASAN_VMALLOC mutual exclusion until confirming > the functionality. > > > [1]: commit 0609ae011deb41c ("x86/kasan: support KASAN_VMALLOC") > > Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Hi Lecopzer,
Thanks for working on this!
Acked-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com>
for the series along with the other two patches minding the nit in patch #3.
Will, Catalin, could you please take a look at the arm changes?
Thanks!
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