[PATCH v3 6/6] arm64: hyperv: Implement hv_is_isolation_supported() for CCA Realms

Provide an arm64 implementation of hv_is_isolation_supported() that
overrides the __weak default in drivers/hv/hv_common.c.

The implementation deliberately does not depend on
hv_is_hyperv_initialized() because hv_common_init() consults
hv_is_isolation_supported() before hyperv_initialized is set.

Signed-off-by: Kameron Carr <[email protected]>
---
 arch/arm64/hyperv/mshyperv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/hyperv/mshyperv.c b/arch/arm64/hyperv/mshyperv.c
index 8519f694f2897..e28612255a970 100644
--- a/arch/arm64/hyperv/mshyperv.c
+++ b/arch/arm64/hyperv/mshyperv.c
@@ -163,3 +163,8 @@ bool hv_isolation_type_cca(void)
 {
 	return is_realm_world();
 }
+
+bool hv_is_isolation_supported(void)
+{
+	return is_realm_world();
+}
-- 
2.45.4