From: Stefan Agner <stefan.ag...@toradex.com>
Implement MIGRATE_INFO_TYPE. This informs Linux that no migration
for the trusted operating system is necessary:
[ 0.000000] psci: Trusted OS migration not required
Signed-off-by: Stefan Agner <stefan.ag...@toradex.com>
---
arch/arm/mach-imx/mx7/psci-mx7.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/mach-imx/mx7/psci-mx7.c b/arch/arm/mach-imx/mx7/psci-mx7.c
index cd72449d9b..aae96c553f 100644
--- a/arch/arm/mach-imx/mx7/psci-mx7.c
+++ b/arch/arm/mach-imx/mx7/psci-mx7.c
@@ -201,6 +201,12 @@ __secure s32 psci_affinity_info(u32 __always_unused
function_id,
return psci_state[cpu];
}
+__secure s32 psci_migrate_info_type(u32 function_id)
+{
+ /* Trusted OS is either not present or does not require migration */
+ return 2;
+}
+
__secure s32 psci_features(u32 __always_unused function_id, u32 psci_fid)
{
switch (psci_fid) {
@@ -208,6 +214,7 @@ __secure s32 psci_features(u32 __always_unused function_id,
u32 psci_fid)
case ARM_PSCI_0_2_FN_CPU_OFF:
case ARM_PSCI_0_2_FN_CPU_ON:
case ARM_PSCI_0_2_FN_AFFINITY_INFO:
+ case ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE:
case ARM_PSCI_0_2_FN_SYSTEM_OFF:
case ARM_PSCI_0_2_FN_SYSTEM_RESET:
case ARM_PSCI_1_0_FN_PSCI_FEATURES:
--
2.17.1
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