File 1dbca2ec-CVE-2018-3639.patch of Package libvirt.11695

commit 1dbca2eccad58d91a5fd33962854f1a653638182
Author: Daniel P. Berrangé <>
Date:   Mon May 21 23:05:07 2018 +0100

    cpu: define the 'ssbd' CPUID feature bit (CVE-2018-3639)
    New microcode introduces the "Speculative Store Bypass Disable"
    CPUID feature bit. This needs to be exposed to guest OS to allow
    them to protect against CVE-2018-3639.
    Signed-off-by: Daniel P. Berrangé <>
    Reviewed-by: Jiri Denemark <>

Index: libvirt-1.2.5/src/cpu/cpu_map.xml
--- libvirt-1.2.5.orig/src/cpu/cpu_map.xml
+++ libvirt-1.2.5/src/cpu/cpu_map.xml
@@ -330,6 +330,9 @@
     <feature name='spec-ctrl'>
       <cpuid function='0x07' edx='0x04000000'/>
+    <feature name='ssbd'>
+      <cpuid function='0x07' edx='0x80000000'/>
+    </feature>
     <!-- More AMD-specific features -->
     <feature name='ibpb'>