arm-trusted-firmware/docs
johpow01 6cac724d52 Enable v8.6 WFE trap delays
This patch enables the v8.6 extension to add a delay before WFE traps
are taken. A weak hook plat_arm_set_twedel_scr_el3 has been added in
plat/common/aarch64/plat_common.c that disables this feature by default
but platform-specific code can override it when needed.

The only hook provided sets the TWED fields in SCR_EL3, there are similar
fields in HCR_EL2, SCTLR_EL2, and SCTLR_EL1 to control WFE trap delays in
lower ELs but these should be configured by code running at EL2 and/or EL1
depending on the platform configuration and is outside the scope of TF-A.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I0a9bb814205efeab693a3d0a0623e62144abba2d
2020-05-19 21:49:52 +00:00
..
about doc: Reorganize maintainers.rst file 2020-05-13 09:05:06 +02:00
components doc: Add binding document for fconf. 2020-04-30 09:40:23 +01:00
design doc: Fixup some SMCCC links 2020-04-17 14:06:54 +02:00
design_documents CMake buildsystem design document 2020-03-11 15:06:09 +01:00
getting_started Enable v8.6 WFE trap delays 2020-05-19 21:49:52 +00:00
perf Update docs with PMU security information 2020-02-12 13:08:20 +00:00
plat docs: Fixes and updates for the v2.3 release 2020-04-15 17:50:43 -05:00
process doc: Update various process documents 2020-05-13 09:05:05 +02:00
resources doc: Update fconf uml diagrams 2020-04-01 16:40:16 +02:00
security_advisories docs: Update SMCCC doc, other changes for release 2020-04-16 10:03:39 -05:00
Makefile doc: Treat Sphinx warnings as errors 2020-04-21 09:37:47 +00:00
change-log-upcoming.rst docs: Updating Change log for v2.3 Release 2020-04-16 10:23:21 -05:00
change-log.rst docs: Updating Change log for v2.3 Release 2020-04-16 10:23:21 -05:00
conf.py doc: Remove version and release variables from conf.py 2019-10-17 13:46:38 +00:00
global_substitutions.txt fconf: Add documentation 2020-02-07 13:51:32 +00:00
glossary.rst fconf: Add documentation 2020-02-07 13:51:32 +00:00
index.rst docs: Update SMCCC doc, other changes for release 2020-04-16 10:03:39 -05:00
license.rst doc: Convert internal links to RST format 2019-10-08 15:58:03 +00:00
requirements.txt doc: Generate PlantUML diagrams automatically 2019-07-12 14:15:25 +01:00