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![]() 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 |
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.. | ||
build-options.rst | ||
docs-build.rst | ||
image-terminology.rst | ||
index.rst | ||
initial-build.rst | ||
porting-guide.rst | ||
prerequisites.rst | ||
psci-lib-integration-guide.rst | ||
rt-svc-writers-guide.rst | ||
tools-build.rst |