diff options
| author | Marc Zyngier <[email protected]> | 2017-09-26 15:57:16 +0100 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2017-09-27 12:15:54 +0100 |
| commit | 5371513fb338fb9989c569dc071326d369d6ade8 (patch) | |
| tree | 2dd1cfbb2973f06740c382e6f7b13b7f38a952dc /lib/debugobjects.c | |
| parent | e19b205be43d11bff638cad4487008c48d21c103 (diff) | |
arm64: Make sure SPsel is always set
When the kernel is entered at EL2 on an ARMv8.0 system, we construct
the EL1 pstate and make sure this uses the the EL1 stack pointer
(we perform an exception return to EL1h).
But if the kernel is either entered at EL1 or stays at EL2 (because
we're on a VHE-capable system), we fail to set SPsel, and use whatever
stack selection the higher exception level has choosen for us.
Let's not take any chance, and make sure that SPsel is set to one
before we decide the mode we're going to run in.
Cc: <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions