diff options
| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2014-02-06 10:36:15 +0000 |
|---|---|---|
| committer | Dan Handley <dan.handley@arm.com> | 2014-02-17 18:51:44 +0000 |
| commit | caa84939a4d8b1189dea8619ccc57bdb3026b125 (patch) | |
| tree | a7eb5e977cc9971c051ef469877fc3d00cba24ad /common/psci/psci_setup.c | |
| parent | 07f4e078b6871e5c74f6cb38f2726a2cfcb2b746 (diff) | |
Add support for handling runtime service requests
This patch uses the reworked exception handling support to handle
runtime service requests through SMCs following the SMC calling
convention. This is a giant commit since all the changes are
inter-related. It does the following:
1. Replace the old exception handling mechanism with the new one
2. Enforce that SP_EL0 is used C runtime stacks.
3. Ensures that the cold and warm boot paths use the 'cpu_context'
structure to program an ERET into the next lower EL.
4. Ensures that SP_EL3 always points to the next 'cpu_context'
structure prior to an ERET into the next lower EL
5. Introduces a PSCI SMC handler which completes the use of PSCI as a
runtime service
Change-Id: I661797f834c0803d2c674d20f504df1b04c2b852
Co-authored-by: Achin Gupta <achin.gupta@arm.com>
Diffstat (limited to 'common/psci/psci_setup.c')
| -rw-r--r-- | common/psci/psci_setup.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/common/psci/psci_setup.c b/common/psci/psci_setup.c index c471d1f5..8d7903c1 100644 --- a/common/psci/psci_setup.c +++ b/common/psci/psci_setup.c @@ -195,6 +195,9 @@ static void psci_init_aff_map_node(unsigned long mpidr, cm_set_context(mpidr, (void *) &psci_ns_context[linear_id], NON_SECURE); + + /* Initialize exception stack in the context */ + cm_init_exception_stack(mpidr, NON_SECURE); } return; @@ -348,5 +351,5 @@ DECLARE_RT_SVC( OEN_STD_END, SMC_TYPE_FAST, psci_setup, - NULL + psci_smc_handler ); |