# qemu-system-x86_64 -cpu ? | grep EPYC
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
# qemu-system-x86_64 -cpu ? | grep EPYC
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Milan (alias configured by machine type)
x86 EPYC-Milan-v1 AMD EPYC-Milan Processor
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-Rome-v2 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
focal: qemu 1:4.2-3ubuntu6.15, libvirt 6.0.0-0ubuntu8.8
# qemu-system-x86_64 -cpu ? | grep EPYC
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
# virsh domcapabilities 'forbid' >EPYC-Rome< /model> vendor> AMD</vendor> deadline' /> capabilities' /> l1dfl-vmentry' /> mc-no'/ >
<mode name='host-model' supported='yes'>
<model fallback=
<
<feature policy='require' name='pcid'/>
<feature policy='require' name='x2apic'/>
<feature policy='require' name='tsc-
<feature policy='require' name='hypervisor'/>
<feature policy='require' name='tsc_adjust'/>
<feature policy='require' name='erms'/>
<feature policy='require' name='vaes'/>
<feature policy='require' name='vpclmulqdq'/>
<feature policy='require' name='spec-ctrl'/>
<feature policy='require' name='stibp'/>
<feature policy='require' name='arch-
<feature policy='require' name='ssbd'/>
<feature policy='require' name='xsaves'/>
<feature policy='require' name='cmp_legacy'/>
<feature policy='require' name='invtsc'/>
<feature policy='require' name='amd-ssbd'/>
<feature policy='require' name='virt-ssbd'/>
<feature policy='require' name='rdctl-no'/>
<feature policy='require' name='skip-
<feature policy='require' name='mds-no'/>
<feature policy='require' name='pschange-
</mode>
After:
# qemu-system-x86_64 -cpu ? | grep EPYC
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Milan (alias configured by machine type)
x86 EPYC-Milan-v1 AMD EPYC-Milan Processor
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-Rome-v2 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
<mode name='host-model' supported='yes'> 'forbid' >EPYC-Milan< /model> vendor> AMD</vendor> deadline' /> capabilities' /> l1dfl-vmentry' /> mc-no'/ > addr-chk' />
<model fallback=
<
<feature policy='require' name='x2apic'/>
<feature policy='require' name='tsc-
<feature policy='require' name='hypervisor'/>
<feature policy='require' name='tsc_adjust'/>
<feature policy='require' name='vaes'/>
<feature policy='require' name='vpclmulqdq'/>
<feature policy='require' name='spec-ctrl'/>
<feature policy='require' name='stibp'/>
<feature policy='require' name='arch-
<feature policy='require' name='ssbd'/>
<feature policy='require' name='cmp_legacy'/>
<feature policy='require' name='invtsc'/>
<feature policy='require' name='virt-ssbd'/>
<feature policy='require' name='rdctl-no'/>
<feature policy='require' name='skip-
<feature policy='require' name='mds-no'/>
<feature policy='require' name='pschange-
<feature policy='disable' name='invpcid'/>
<feature policy='disable' name='pku'/>
<feature policy='disable' name='fsrm'/>
<feature policy='disable' name='svme-
</mode>
Still working as expected