[Xen-devel] [PATCH v4 10/11] public: add XENFEAT_ARM_SMCCC_supported feature

[Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>]

This feature indicates that hypervisor is compatible with ARM
SMC calling convention. Hypervisor will not inject an undefined
instruction exception if an invalid SMC function were called and
will not crash a domain if an invlalid HVC functions were called.

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
---
 xen/include/public/features.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/include/public/features.h b/xen/include/public/features.h
index 2110b04..1a989b8 100644
--- a/xen/include/public/features.h
+++ b/xen/include/public/features.h
@@ -102,6 +102,9 @@
 /* Guest can use XENMEMF_vnode to specify virtual node for memory op. */
 #define XENFEAT_memory_op_vnode_supported 13
 
+/* arm: Hypervisor supports ARM SMC calling convention. */
+#define XENFEAT_ARM_SMCCC_supported       14
+
 #define XENFEAT_NR_SUBMAPS 1
 
 #endif /* __XEN_PUBLIC_FEATURES_H__ */
-- 
2.7.4


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