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| H A D | tee_pager.c | da033e69c2ce073850c57f5f9ec175e2f40c6f0a Tue May 23 16:26:01 UTC 2017 Etienne Carriere <etienne.carriere@linaro.org> core: make pager aliased paged not always writable
This change lower the attack surface of executable memory in
the pager by allowing write access to aliased virtual pages
related to read-only content (including executable content)
only when pager needs to update page content.
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (qemu_virt)
Tested-by: Etienne Carriere <etienne.carriere@st.com> (b2260)
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