| #
a1032beb |
| 20-Aug-2025 |
John Powell <john.powell@arm.com> |
feat(cpufeat): enable FEAT_CPA2 for EL3
FEAT_CPA2 enables checked pointer arithmetic, which in the event
of an arithmetic overflow in pointer generation will result in a
non-canonical pointer being
feat(cpufeat): enable FEAT_CPA2 for EL3
FEAT_CPA2 enables checked pointer arithmetic, which in the event
of an arithmetic overflow in pointer generation will result in a
non-canonical pointer being generated and subsequent address fault.
Note that FEAT_CPA is a trivial implementation that exists in
some hardware purely so it can run CPA2-enabled instructions
without crashing but they don't actually have checked arithmetic,
so FEAT_CPA is not explicitly enabled in TF-A.
Change-Id: I6d2ca7a7e4b986bb9e917aa8baf8091a271c168b
Signed-off-by: John Powell <john.powell@arm.com>
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