arm-trusted-firmware/docs/design
Ryan Everett db7eb68817 fix(cpus): workaround for Cortex-X4 erratum 3076789
Cortex-X4 erratum 3076789 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.

The workaround is to set chicken bits CPUACTLR3_EL1[14:13]=0b11
and CPUACTLR_EL1[52] = 1.
Expected performance degradation is < 0.5%, but isolated
benchmark components might see higher impact.

SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest

Change-Id: Ib100bfab91efdb6330fdcdac127bcc5732d59196
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
2024-09-30 13:49:13 +01:00
..
alt-boot-flows.rst doc: Split the User Guide into multiple files 2019-11-27 10:45:54 +00:00
auth-framework.rst docs(auth): add missing AUTH_PARAM_NV_CTR value 2024-02-02 15:32:34 +01:00
cpu-specific-build-macros.rst fix(cpus): workaround for Cortex-X4 erratum 3076789 2024-09-30 13:49:13 +01:00
firmware-design.rst refactor(mte): remove mte, mte_perm 2024-03-26 14:30:58 -05:00
index.rst docs: add top level section numbering 2022-11-16 14:06:48 +00:00
interrupt-framework-design.rst Fix broken links to various sections across docs 2020-08-03 09:55:04 -05:00
psci-pd-tree.rst doc: Set correct syntax highlighting style 2019-05-22 11:28:17 +01:00
reset-design.rst docs: update RESET_TO_BL31 documentation 2023-03-09 14:42:49 +00:00
trusted-board-boot-build.rst docs(arm): add ARM_ROTPK_LOCATION variant full key 2022-12-09 14:55:39 -06:00
trusted-board-boot.rst docs(auth): align TBBR CoT names to match the code 2024-02-26 12:39:06 +00:00