[Minios-devel] [UNIKRAFT PATCHv5 40/46] plat/common: Implement CPU reset for arm64

[Wei Chen <wei.chen@xxxxxxx>]

From: Wei Chen <Wei.Chen@xxxxxxx>

Using PSCI despatch function to call PSCI_CPU_RESET
function to reset CPU.

Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
---
 plat/common/arm/cpu_native.c        | 7 +++++++
 plat/common/include/arm/arm64/cpu.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/plat/common/arm/cpu_native.c b/plat/common/arm/cpu_native.c
index 2d1a1aa..429b172 100644
--- a/plat/common/arm/cpu_native.c
+++ b/plat/common/arm/cpu_native.c
@@ -43,3 +43,10 @@ void halt(void)
 {
        __asm__ __volatile__("wfi");
 }
+
+/* Systems support PSCI >= 0.2 can do system reset from PSCI */
+void reset(void)
+{
+       UK_BUGON (!smcc_psci_call);
+       smcc_psci_call(PSCI_FNID_SYSTEM_RESET, 0, 0, 0);
+}
diff --git a/plat/common/include/arm/arm64/cpu.h 
b/plat/common/include/arm/arm64/cpu.h
index b231d32..c156fd3 100644
--- a/plat/common/include/arm/arm64/cpu.h
+++ b/plat/common/include/arm/arm64/cpu.h
@@ -102,3 +102,4 @@ int32_t smcc_psci_smc_call(uint32_t, uint64_t, uint64_t, 
uint64_t);
 
 /* CPU native APIs */
 void halt(void);
+void reset(void);
-- 
2.17.1


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