Messages in this thread | | | From | Andrey Konovalov <> | Date | Mon, 6 Dec 2021 22:12:28 +0100 | Subject | Re: [PATCH 24/31] kasan, vmalloc, arm64: mark vmalloc mappings as pgprot_tagged |
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On Fri, Dec 3, 2021 at 1:42 PM Marco Elver <elver@google.com> wrote: > > On Tue, Nov 30, 2021 at 11:07PM +0100, andrey.konovalov@linux.dev wrote: > > From: Andrey Konovalov <andreyknvl@google.com> > > > > HW_TAGS KASAN relies on ARM Memory Tagging Extension (MTE). With MTE, > > a memory region must be mapped as MT_NORMAL_TAGGED to allow setting > > memory tags via MTE-specific instructions. > > > > This change adds proper protection bits to vmalloc() allocations. > > These allocations are always backed by page_alloc pages, so the tags > > will actually be getting set on the corresponding physical memory. > > > > Signed-off-by: Andrey Konovalov <andreyknvl@google.com> > > Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> > > This is also missing Signed-off-by from Vincenzo.
Same here. Thanks!
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