diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 281e584cfe39..d61313f5c5b9 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1967,7 +1967,7 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)
 	/*
 	 * Before changing the encryption attribute, we need to flush caches.
 	 */
-	cpa_flush(&cpa, 1);
+	cpa_flush(&cpa, !this_cpu_has(X86_FEATURE_SME_COHERENT));
 
 	ret = __change_page_attr_set_clr(&cpa, 1);