[Xen-devel] [RFC for-4.5 3/5] xen/arm64: Implement lookup_processor_type as a dummy function

[Julien Grall <julien.grall@xxxxxxxxxx>]

ARM64 implementation doesn't yet have specific code per processor.
This function will be used in a later patch.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/arm64/head.S |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index c97c194..e1d3103 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -546,6 +546,13 @@ putn:   ret
 
 #endif /* !CONFIG_EARLY_PRINTK */
 
+/* This provides a C-API version of __lookup_processor_type
+ * TODO: For now, the implementation return NULL every time
+ */
+GLOBAL(lookup_processor_type)
+        mov  x0, #0
+        ret
+
 /*
  * Local variables:
  * mode: ASM
-- 
1.7.10.4


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