[edk2-devel] [PATCH edk2-platforms v6 5/7] Platform/SbsaQemu: hang if there is no cpu information

[Marcin Juszkiewicz]

In case we do not have cpu information (SMC call fails,
our minimal DT lacks info) we shutdown system.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiew...@linaro.org>
---
 .../Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf        | 2 ++
 .../SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git 
a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
 
b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
index 5358dd339eb3..acf91225b4c7 100644
--- 
a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
+++ 
b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
@@ -21,6 +21,7 @@ [Packages]
   ArmPkg/ArmPkg.dec
   EmbeddedPkg/EmbeddedPkg.dec
   MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
   Silicon/Qemu/SbsaQemu/SbsaQemu.dec
 
 [LibraryClasses]
@@ -28,6 +29,7 @@ [LibraryClasses]
   BaseMemoryLib
   DebugLib
   FdtLib
+  ResetSystemLib
 
  [Pcd]
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdDeviceTreeBaseAddress
diff --git 
a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
 
b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
index 6315cce3fb7f..e1f1a9588b19 100644
--- 
a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
+++ 
b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
@@ -10,6 +10,7 @@
 #include <Library/ArmSmcLib.h>
 #include <Library/DebugLib.h>
 #include <Library/PcdLib.h>
+#include <Library/ResetSystemLib.h>
 #include <Library/SbsaQemuHardwareInfoLib.h>
 #include <libfdt.h>
 #include <IndustryStandard/SbsaQemuSmc.h>
@@ -95,7 +96,7 @@ FdtHelperCountCpus (
   Node = fdt_path_offset (DeviceTreeBase, "/cpus");
   if (Node <= 0) {
     DEBUG ((DEBUG_ERROR, "Unable to locate /cpus in DeviceTree\n"));
-    return 0;
+    ResetShutdown();
   }
 
   CpuCount = 0;

-- 
2.44.0



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