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446354122c
Arm Confidential Compute Architecture (Arm CCA) support, underpinned by Arm Realm Management Extension (RME) support, brings in a few important software and hardware architectural changes in TF-A, which warrants a new security analysis of the code base. Results of this analysis are captured in a new threat model document, provided in this patch. The main changes introduced in TF-A to support Arm CCA / RME are: - Presence of a new threat agent: realm world clients. - Availability of Arm CCA Hardware Enforced Security (HES) to support measured boot and trusted boot. - Configuration of the Granule Protection Tables (GPT) for inter-world memory protection. This is only an initial version of the threat model and we expect to enrich it in the future. Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Manish Pandey <manish.pandey2@arm.com> Change-Id: Iab84dc724df694511508f90dc76b6d469c4cccd5 |
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| _static/css | ||
| about | ||
| components | ||
| design | ||
| design_documents | ||
| getting_started | ||
| perf | ||
| plat | ||
| process | ||
| resources | ||
| security_advisories | ||
| threat_model | ||
| tools | ||
| change-log.md | ||
| conf.py | ||
| global_substitutions.txt | ||
| glossary.rst | ||
| index.rst | ||
| license.rst | ||
| Makefile | ||
| porting-guide.rst | ||