cpu: Add EPYC-IBPB CPU model

This is a variant of EPYC with indirect branch prediction protection.
The only difference between EPYC and EPYC-IBPB is the added "ibpb"
feature.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NPavel Hrdina <phrdina@redhat.com>

src/cpu/cpu_map.xml

@@ -2250,6 +2250,78 @@
       <feature name='xsavec'/>
       <feature name='xsaveopt'/>
     </model>
+
+    <model name='EPYC-IBPB'>
+      <signature family='23' model='1'/>
+      <vendor name='AMD'/>
+      <feature name='3dnowprefetch'/>
+      <feature name='abm'/>
+      <feature name='adx'/>
+      <feature name='aes'/>
+      <feature name='apic'/>
+      <feature name='arat'/>
+      <feature name='avx'/>
+      <feature name='avx2'/>
+      <feature name='bmi1'/>
+      <feature name='bmi2'/>
+      <feature name='clflush'/>
+      <feature name='clflushopt'/>
+      <feature name='cmov'/>
+      <feature name='cr8legacy'/>
+      <feature name='cx16'/>
+      <feature name='cx8'/>
+      <feature name='de'/>
+      <feature name='f16c'/>
+      <feature name='fma'/>
+      <feature name='fpu'/>
+      <feature name='fsgsbase'/>
+      <feature name='fxsr'/>
+      <feature name='fxsr_opt'/>
+      <feature name='ibpb'/>
+      <feature name='lahf_lm'/>
+      <feature name='lm'/>
+      <feature name='mca'/>
+      <feature name='mce'/>
+      <feature name='misalignsse'/>
+      <feature name='mmx'/>
+      <feature name='mmxext'/>
+      <feature name='monitor'/>
+      <feature name='movbe'/>
+      <feature name='msr'/>
+      <feature name='mtrr'/>
+      <feature name='nx'/>
+      <feature name='osvw'/>
+      <feature name='pae'/>
+      <feature name='pat'/>
+      <feature name='pclmuldq'/>
+      <feature name='pdpe1gb'/>
+      <feature name='pge'/>
+      <feature name='pni'/>
+      <feature name='popcnt'/>
+      <feature name='pse'/>
+      <feature name='pse36'/>
+      <feature name='rdrand'/>
+      <feature name='rdseed'/>
+      <feature name='rdtscp'/>
+      <feature name='sep'/>
+      <feature name='sha-ni'/>
+      <feature name='smap'/>
+      <feature name='smep'/>
+      <feature name='sse'/>
+      <feature name='sse2'/>
+      <feature name='sse4.1'/>
+      <feature name='sse4.2'/>
+      <feature name='sse4a'/>
+      <feature name='ssse3'/>
+      <feature name='svm'/>
+      <feature name='syscall'/>
+      <feature name='tsc'/>
+      <feature name='vme'/>
+      <feature name='xgetbv1'/>
+      <feature name='xsave'/>
+      <feature name='xsavec'/>
+      <feature name='xsaveopt'/>
+    </model>
   </arch>
 
   <arch name='ppc64'>

tests/cputestdata/x86_64-cpuid-EPYC-7601-32-Core-ibpb-guest.xml

 <cpu mode='custom' match='exact'>
-  <model fallback='forbid'>EPYC</model>
+  <model fallback='forbid'>EPYC-IBPB</model>
   <vendor>AMD</vendor>
   <feature policy='require' name='ht'/>
   <feature policy='require' name='osxsave'/>
@@ -13,6 +13,5 @@
   <feature policy='require' name='perfctr_core'/>
   <feature policy='require' name='perfctr_nb'/>
   <feature policy='require' name='invtsc'/>
-  <feature policy='require' name='ibpb'/>
   <feature policy='disable' name='rdtscp'/>
 </cpu>

tests/cputestdata/x86_64-cpuid-EPYC-7601-32-Core-ibpb-host.xml

 <cpu>
   <arch>x86_64</arch>
-  <model>EPYC</model>
+  <model>EPYC-IBPB</model>
   <vendor>AMD</vendor>
   <feature name='ht'/>
   <feature name='osxsave'/>
@@ -14,5 +14,4 @@
   <feature name='perfctr_core'/>
   <feature name='perfctr_nb'/>
   <feature name='invtsc'/>
-  <feature name='ibpb'/>
 </cpu>

tests/cputestdata/x86_64-cpuid-EPYC-7601-32-Core-ibpb-json.xml

 <cpu mode='custom' match='exact'>
-  <model fallback='forbid'>EPYC</model>
+  <model fallback='forbid'>EPYC-IBPB</model>
   <vendor>AMD</vendor>
   <feature policy='require' name='x2apic'/>
   <feature policy='require' name='tsc-deadline'/>
   <feature policy='require' name='hypervisor'/>
   <feature policy='require' name='tsc_adjust'/>
   <feature policy='require' name='cmp_legacy'/>
-  <feature policy='require' name='ibpb'/>
   <feature policy='disable' name='monitor'/>
   <feature policy='disable' name='rdtscp'/>
   <feature policy='disable' name='svm'/>