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feat(sve): enable SVE for the secure world

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Enables SVE support for the secure world via ENABLE_SVE_FOR_SWD.
ENABLE_SVE_FOR_SWD defaults to 0 and has to be explicitly set by the
platform. SVE is configured during initial setup and then uses EL3
context save/restore routine to switch between SVE configurations for
different contexts.
Reset value of CPTR_EL3 changed to be most restrictive by default.

Signed-off-by: Max Shvetsov <maksims.svecovs@arm.com>
Change-Id: I889fbbc2e435435d66779b73a2d90d1188bf4116
This commit is contained in:
Max Shvetsov 2021-03-22 11:59:37 +00:00 • committed by Maksims Svecovs
parent a5394205e9
commit 0c5e7d1ce3
10 changed files with 82 additions and 120 deletions
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4
include/lib/el3_runtime/aarch64/context.h
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@ -61,7 +61,9 @@
#define CTX_ELR_EL3 U(0x20)
#define CTX_PMCR_EL0 U(0x28)
#define CTX_IS_IN_EL3 U(0x30)
#define CTX_EL3STATE_END U(0x40) /* Align to the next 16 byte boundary */
#define CTX_CPTR_EL3 U(0x38)
#define CTX_ZCR_EL3 U(0x40)
#define CTX_EL3STATE_END U(0x50) /* Align to the next 16 byte boundary */
/*******************************************************************************
* Constants that allow assembler code to access members of and the