[edk2-devel] [PATCH v5 5/7] Platform/SbsaQemu: hang if there is no cpu information

["Xiong Yining" <xiongyining1480@phytium.com.cn>]

From: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>

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

TODO: shutdown instead

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
 .../Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c  | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
index 6315cce3fb7f..923997edb2f1 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
@@ -95,6 +95,9 @@ FdtHelperCountCpus (
   Node = fdt_path_offset (DeviceTreeBase, "/cpus");
   if (Node <= 0) {
     DEBUG ((DEBUG_ERROR, "Unable to locate /cpus in DeviceTree\n"));
+    // as we do not have information about cpu count we panic here
+    // TODO: shutdown rather than hang
+    CpuDeadLoop();
     return 0;
   }
 
-- 
2.34.1



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