[Xen-devel] [PATCH v4 11/11] arm: enable XENFEAT_ARM_SMCCC_supported feature

[Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>]

As Xen now supports SMCCC, we can enable this feature to tell
guests that it is safe to call generic SMCs and HVCs.

Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
---
 xen/common/kernel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/common/kernel.c b/xen/common/kernel.c
index ce7cb8a..18c4d51 100644
--- a/xen/common/kernel.c
+++ b/xen/common/kernel.c
@@ -332,6 +332,9 @@ DO(xen_version)(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
                     (1U << XENFEAT_auto_translated_physmap);
             if ( is_hardware_domain(d) )
                 fi.submap |= 1U << XENFEAT_dom0;
+#ifdef CONFIG_ARM
+            fi.submap |= (1U << XENFEAT_ARM_SMCCC_supported);
+#endif
 #ifdef CONFIG_X86
             switch ( d->guest_type )
             {
-- 
2.7.4


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