Messages in this thread | | | From | Jann Horn <> | Date | Tue, 3 Nov 2020 23:17:26 +0100 | Subject | Re: [PATCH v7 3/9] arm64, kfence: enable KFENCE for ARM64 |
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On Tue, Nov 3, 2020 at 6:59 PM Marco Elver <elver@google.com> wrote: > Add architecture specific implementation details for KFENCE and enable > KFENCE for the arm64 architecture. In particular, this implements the > required interface in <asm/kfence.h>. > > KFENCE requires that attributes for pages from its memory pool can > individually be set. Therefore, force the entire linear map to be mapped > at page granularity. Doing so may result in extra memory allocated for > page tables in case rodata=full is not set; however, currently > CONFIG_RODATA_FULL_DEFAULT_ENABLED=y is the default, and the common case > is therefore not affected by this change. > > Reviewed-by: Dmitry Vyukov <dvyukov@google.com> > Co-developed-by: Alexander Potapenko <glider@google.com> > Signed-off-by: Alexander Potapenko <glider@google.com> > Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Jann Horn <jannh@google.com>
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