diff --git a/BM/instruction-check/feature_list.py b/BM/instruction-check/feature_list.py
index a1bfaa4..dfdf771 100755
--- a/BM/instruction-check/feature_list.py
+++ b/BM/instruction-check/feature_list.py
@@ -141,6 +141,10 @@
         "cpuid": ['7', '0', '1', '0', 'a', '4'],
         "platforms": {"SPR", "EMR", "GNR", "SRF", "CWF"}
     },
+    "LASS": {
+        "cpuid": ['7', '0', '1', '0', 'a', '6'],
+        "platforms": {"SRF", "CWF"}
+    },
     "CMPCCXADD": {
         "cpuid": ['7', '0', '1', '0', 'a', '7'],
         "platforms": {"SRF", "CWF"}
@@ -161,6 +165,10 @@
         "cpuid": ['7', '0', '1', '0', 'a', '23'],
         "platforms": {"SRF", "CWF"}
     },
+    "LAM": {
+        "cpuid": ['7', '0', '1', '0', 'a', '26'],
+        "platforms": {"SRF", "CWF"}
+    },
     "AVX_VNNI_INT8": {
         "cpuid": ['7', '0', '1', '0', 'd', '4'],
         "platforms": {"SRF", "CWF"}
diff --git a/KVM/qemu/x86_cpu_flags.cfg b/KVM/qemu/x86_cpu_flags.cfg
index 24a17ca..f9bea10 100644
--- a/KVM/qemu/x86_cpu_flags.cfg
+++ b/KVM/qemu/x86_cpu_flags.cfg
@@ -7,6 +7,21 @@
     auto_cpu_model = "no"
     cpu_model = host
     variants:
+        # SRF
+        - lam:
+            flags = "lam"
+            variants:
+                - default:
+                - disable:
+                    cpu_model_flags = ",-lam"
+                    no_flags = "lam"
+        - lass:
+            flags = "lass"
+            variants:
+                - default:
+                - disable:
+                    cpu_model_flags = ",-lass"
+                    no_flags = "lass"
         # SPR
         - avx512_fp16:
             flags = "avx512_fp16"
diff --git a/KVM/qemu/x86_cpuid.cfg b/KVM/qemu/x86_cpuid.cfg
index 6782421..d8fb5de 100644
--- a/KVM/qemu/x86_cpuid.cfg
+++ b/KVM/qemu/x86_cpuid.cfg
@@ -19,6 +19,10 @@
             features = "AVX_NE_CONVERT"
         - cmpccxadd:
             features = "CMPCCXADD"
+        - lam:
+            features = "LAM"
+        - lass:
+            features = "LASS"
         # GNR
         - amx_fp16:
             features = "AMX_FP16"