fix(fvp): update system suspend in OS-initiated mode
This patch fixes system suspend in OS-initiated mode by setting the
value of `last_at_pwrlvl` in the `psci_power_state_t` object to
`PLAT_MAX_PWR_LVL`, which otherwise would result in undefined behavior.
This is conditionally compiled into the build depending on the value of
the `PSCI_OS_INIT_MODE` build option.
Change-Id: Ia0fb1e68af9320370325642b17c4569e9580aa3a
Signed-off-by: Wing Li <wingers@google.com>
diff --git a/plat/arm/board/fvp/fvp_pm.c b/plat/arm/board/fvp/fvp_pm.c
index b8c97f8..534a175 100644
--- a/plat/arm/board/fvp/fvp_pm.c
+++ b/plat/arm/board/fvp/fvp_pm.c
@@ -393,6 +393,10 @@
for (i = ARM_PWR_LVL0; i <= PLAT_MAX_PWR_LVL; i++)
req_state->pwr_domain_state[i] = ARM_LOCAL_STATE_OFF;
+
+#if PSCI_OS_INIT_MODE
+ req_state->last_at_pwrlvl = PLAT_MAX_PWR_LVL;
+#endif
}
#endif