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| author | Peter Hoyes <Peter.Hoyes@arm.com> | 2021-08-19 18:53:13 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-09-02 17:17:45 +0300 |
| commit | 30e5a449e8c7739965757879bb17efbd3a8f0ee2 (patch) | |
| tree | 7c25dabe79f3cde91ec222a33ac07fef007d3851 /doc | |
| parent | b53bbca63bf42fe6d5174122e29e371691fe6dad (diff) | |
| download | u-boot-30e5a449e8c7739965757879bb17efbd3a8f0ee2.tar.xz | |
arm: Use armv8_switch_to_el1 env to switch to EL1
Use the environment variable armv8_switch_to_el1 to determine whether
to switch to EL1 at runtime. This is an alternative to the
CONFIG_ARMV8_SWITCH_TO_EL1 compile-time option.
The environment variable will be ineffective if the ARMV8_MULTIENTRY
config is used.
This is required by the Armv8r64 architecture, which must be able to
boot at S-EL1 for Linux but may need to boot at other ELs for other
systems.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
Diffstat (limited to 'doc')
0 files changed, 0 insertions, 0 deletions