PSCI: Introduce PSCI Library argument structure
This patch introduces a `psci_lib_args_t` structure which must be
passed into `psci_setup()` which is then used to initialize the PSCI
library. The `psci_lib_args_t` is a versioned structure so as to enable
compatibility checks during library initialization. Both BL31 and SP_MIN
are modified to use the new structure.
SP_MIN is also modified to add version string and build message as part
of its cold boot log just like the other BLs in Trusted Firmware.
NOTE: Please be aware that this patch modifies the prototype of
`psci_setup()`, which breaks compatibility with EL3 Runtime Firmware
(excluding BL31 and SP_MIN) integrated with the PSCI Library.
Change-Id: Ic3761db0b790760a7ad664d8a437c72ea5edbcd6
diff --git a/lib/psci/psci_setup.c b/lib/psci/psci_setup.c
index 263ab68..cb8b77d 100644
--- a/lib/psci/psci_setup.c
+++ b/lib/psci/psci_setup.c
@@ -206,10 +206,12 @@
* | CPU 0 | CPU 1 | CPU 2 | CPU 3 |
* ------------------------------------------------
******************************************************************************/
-int psci_setup(uintptr_t mailbox_ep)
+int psci_setup(const psci_lib_args_t *lib_args)
{
const unsigned char *topology_tree;
+ assert(VERIFY_PSCI_LIB_ARGS_V1(lib_args));
+
/* Do the Architectural initialization */
psci_arch_setup();
@@ -234,8 +236,7 @@
*/
psci_set_pwr_domains_to_run(PLAT_MAX_PWR_LVL);
- assert(mailbox_ep);
- plat_setup_psci_ops(mailbox_ep, &psci_plat_pm_ops);
+ plat_setup_psci_ops((uintptr_t)lib_args->mailbox_ep, &psci_plat_pm_ops);
assert(psci_plat_pm_ops);
/*