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| author | Andre Przywara <andre.przywara@arm.com> | 2023-01-27 14:09:20 +0000 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2023-03-22 13:33:22 +0000 |
| commit | d5384b69d1180a596a48014d99e46eb4341f3455 (patch) | |
| tree | b7d0038c4533bfe7f384edf934dad786ef4fafe9 /include/lib | |
| parent | 1223d2a020c12f80d764323b8a5bf3cd317d8d12 (diff) | |
| download | arm-trusted-firmware-d5384b69d1180a596a48014d99e46eb4341f3455.tar.gz | |
refactor(cpufeat): enable FEAT_NV2 for FEAT_STATE_CHECKED
At the moment we only support for FEAT_NV2 to be either unconditionally
compiled in, or to be not supported at all.
Add support for runtime detection (CTX_INCLUDE_NEVE_REGS=2), by
splitting get_armv8_4_feat_nv_support() into an ID register reading
function and a second function to report the support status. That
function considers both build time settings and runtime information
(if needed), and is used before we access the VNCR_EL2 system register.
Also move the context saving code from assembly to C, and use the new
is_feat_nv2_supported() function to guard its execution.
Change the FVP platform default to the now supported dynamic option (=2),
so the right decision can be made by the code at runtime.
Change-Id: I85b080641995fb72cfd4ac933f7a3f75770c2cb9
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Diffstat (limited to 'include/lib')
| -rw-r--r-- | include/lib/el3_runtime/aarch64/context.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/include/lib/el3_runtime/aarch64/context.h b/include/lib/el3_runtime/aarch64/context.h index e70ff99fa..e5e7e7422 100644 --- a/include/lib/el3_runtime/aarch64/context.h +++ b/include/lib/el3_runtime/aarch64/context.h @@ -521,10 +521,6 @@ void el2_sysregs_context_restore_mte(el2_sysregs_t *regs); void el2_sysregs_context_save_ras(el2_sysregs_t *regs); void el2_sysregs_context_restore_ras(el2_sysregs_t *regs); #endif /* RAS_EXTENSION */ -#if CTX_INCLUDE_NEVE_REGS -void el2_sysregs_context_save_nv2(el2_sysregs_t *regs); -void el2_sysregs_context_restore_nv2(el2_sysregs_t *regs); -#endif /* CTX_INCLUDE_NEVE_REGS */ #endif /* CTX_INCLUDE_EL2_REGS */ #if CTX_INCLUDE_FPREGS |