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[Minios-devel] [UNIKRAFT PATCHv4 36/43] plat/common: Implement CPU reset for arm64


  • To: <minios-devel@xxxxxxxxxxxxxxxxxxxx>, <simon.kuenzer@xxxxxxxxx>
  • From: Wei Chen <Wei.Chen@xxxxxxx>
  • Date: Fri, 6 Jul 2018 09:03:49 +0000
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  • Cc: Kaly.Xin@xxxxxxx, nd@xxxxxxx, wei.chen@xxxxxxx
  • Delivery-date: Fri, 06 Jul 2018 09:06:01 +0000
  • List-id: Mini-os development list <minios-devel.lists.xenproject.org>
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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        | 8 ++++++++
 plat/common/include/arm/arm64/cpu.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/plat/common/arm/cpu_native.c b/plat/common/arm/cpu_native.c
index 07548bf..177cbd8 100644
--- a/plat/common/arm/cpu_native.c
+++ b/plat/common/arm/cpu_native.c
@@ -42,3 +42,11 @@ void halt(void)
        else if (psci_method == PSCI_METHOD_SMC)
                psci_smc_call(PSCI_FNID_CPU_SUSPEND);
 }
+
+void reset(void)
+{
+       if (psci_method == PSCI_METHOD_HVC)
+               psci_hvc_call(PSCI_FNID_SYSTEM_RESET);
+       else if (psci_method == PSCI_METHOD_SMC)
+               psci_smc_call(PSCI_FNID_SYSTEM_RESET);
+}
diff --git a/plat/common/include/arm/arm64/cpu.h 
b/plat/common/include/arm/arm64/cpu.h
index 1fd5c72..c744ed6 100644
--- a/plat/common/include/arm/arm64/cpu.h
+++ b/plat/common/include/arm/arm64/cpu.h
@@ -73,6 +73,7 @@
 
 /* CPU native APIs */
 void halt(void);
+void reset(void);
 
 /* PSCI conduit method to call functions */
 extern int psci_method;
-- 
2.17.1


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