Messages in this thread | | | Date | Mon, 27 Nov 2023 15:07:24 +0000 | From | Alexandru Elisei <> | Subject | Re: [PATCH RFC v2 14/27] arm64: mte: Disable dynamic tag storage management if HW KASAN is enabled |
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Hi,
On Fri, Nov 24, 2023 at 08:54:12PM +0100, David Hildenbrand wrote: > On 19.11.23 17:57, Alexandru Elisei wrote: > > To be able to reserve the tag storage associated with a page requires that > > the tag storage page can be migrated. > > > > When HW KASAN is enabled, the kernel allocates pages, which are now tagged, > > in non-preemptible contexts, which can make reserving the associate tag > > storage impossible. > > I assume that it's the only in-kernel user that actually requires tagged > memory (besides for user space), correct?
Indeed, this is the case. I'll expand the commit message to be more clear about it.
Thanks, Alex
> > -- > Cheers, > > David / dhildenb >
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