diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
index a5a987deba..4836595a8c 100644
--- a/src/cpu_map/x86_features.xml
+++ b/src/cpu_map/x86_features.xml
@@ -581,4 +581,9 @@
   <feature name='taa-no'>
     <msr index='0x10a' edx='0x00000000' eax='0x00000100'/>
   </feature>
+
+  <!-- IA32_CORE_CAPABILITIES features -->
+  <feature name='split-lock-detect'>
+    <msr index='0xcf' edx='0x00000000' eax='0x00000020'/>
+  </feature>
 </cpus>
diff --git a/tests/cputestdata/x86_64-cpuid-Atom-P5362-disabled.xml b/tests/cputestdata/x86_64-cpuid-Atom-P5362-disabled.xml
index 50e8084140..81ffa7bfd3 100644
--- a/tests/cputestdata/x86_64-cpuid-Atom-P5362-disabled.xml
+++ b/tests/cputestdata/x86_64-cpuid-Atom-P5362-disabled.xml
@@ -4,5 +4,6 @@
   <cpuid eax_in='0x00000007' ecx_in='0x00' eax='0x00000000' ebx='0x02001000' ecx='0x00000020' edx='0x40000000'/>
   <cpuid eax_in='0x0000000f' ecx_in='0x01' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000006'/>
   <cpuid eax_in='0x80000007' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000100'/>
+  <msr index='0xcf' edx='0x00000000' eax='0x00000020'/>
   <msr index='0x10a' edx='0x00000000' eax='0x00000100'/>
 </cpudata>
diff --git a/tests/cputestdata/x86_64-cpuid-Atom-P5362-guest.xml b/tests/cputestdata/x86_64-cpuid-Atom-P5362-guest.xml
index 4ad95f06b4..2eeff136c4 100644
--- a/tests/cputestdata/x86_64-cpuid-Atom-P5362-guest.xml
+++ b/tests/cputestdata/x86_64-cpuid-Atom-P5362-guest.xml
@@ -53,6 +53,7 @@
   <feature policy='require' name='mds-no'/>
   <feature policy='require' name='pschange-mc-no'/>
   <feature policy='require' name='taa-no'/>
+  <feature policy='require' name='split-lock-detect'/>
   <feature policy='disable' name='avx'/>
   <feature policy='disable' name='f16c'/>
 </cpu>
diff --git a/tests/cputestdata/x86_64-cpuid-Atom-P5362-host.xml b/tests/cputestdata/x86_64-cpuid-Atom-P5362-host.xml
index cc2b208e6a..b3e9d5c1ff 100644
--- a/tests/cputestdata/x86_64-cpuid-Atom-P5362-host.xml
+++ b/tests/cputestdata/x86_64-cpuid-Atom-P5362-host.xml
@@ -64,4 +64,5 @@
   <feature name='mds-no'/>
   <feature name='pschange-mc-no'/>
   <feature name='taa-no'/>
+  <feature name='split-lock-detect'/>
 </cpu>