diff -Naur blivet-3.4.2.org/blivet/arch.py blivet-3.4.2.sw/blivet/arch.py
--- blivet-3.4.2.org/blivet/arch.py	2022-09-05 16:07:41.840000000 +0000
+++ blivet-3.4.2.sw/blivet/arch.py	2022-09-05 16:09:17.720000000 +0000
@@ -304,6 +304,15 @@
     return os.uname()[4] == 'ia64'
 
 
+def is_sw_64():
+    """
+    :return: True if the hardware supports Sw_64, False otherwise.
+    :rtype: boolean
+
+    """
+    return os.uname()[4].startswith('sw_64')
+
+
 def is_alpha():
     """
     :return: True if the hardware supports Alpha, False otherwise.
@@ -351,6 +360,8 @@
         return os.uname()[4]
     elif is_aarch64():
         return 'aarch64'
+    elif is_sw_64():
+        return 'sw_64'
     elif is_alpha():
         return 'alpha'
     elif is_arm():