Bug 1524824

Summary:	[RFE] Add support for AMD EPYC processors
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Michal Skrivanek <michal.skrivanek>
Component:	ovirt-engine	Assignee:	Michal Skrivanek <michal.skrivanek>
Status:	CLOSED ERRATA	QA Contact:	meital avital <mavital>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ailan, apinnick, chayang, ctatman, ehabkost, fweimer, jan.public, jinzhao, juzhang, knoel, lsurette, mavital, michen, mtessun, pbonzini, rbalakri, Rhev-m-bugs, rui.gouveia, srevivo, virt-maint, ykaul, zhguo
Target Milestone:	ovirt-4.2.2	Keywords:	FutureFeature
Target Release:	---	Flags:	mavital: testing_plan_complete+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:	Red Hat Virtualization now supports AMD EPYC processors for guest virtual machines.	Story Points:	---
Clone Of:	1445834	Environment:
Last Closed:	2018-05-15 17:46:12 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1445834
Bug Blocks:	1445836, 1450396, 1481252

Description Michal Skrivanek 2017-12-12 08:00:54 UTC

+++ This bug was initially created as a clone of Bug #1445834 +++

Based on LKML email, the processor has all the features in Opteron_G5 plus the following features:

cpu family	: 23
model		: 1
model name	: AMD Ryzen 7 1800X Eight-Core Processor
flags           :
mmxext fxsr_opt rdtscp movbe rdrand extapic cr8_legacy 3dnowprefetch fsgsbase 
bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1
xsaves clzero topoext

The "topoext" feature needs extra support in QEMU.

"bpext" and "mwaitx" may need KVM support too.

Comment 1 Michal Skrivanek 2017-12-12 08:06:04 UTC

comes in 7.5

Comment 5 RHV bug bot 2018-02-16 16:24:29 UTC

WARN: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2-ga': '?'}', ]

For more info please contact: rhv-devops: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2-ga': '?'}', ]

For more info please contact: rhv-devops

Comment 7 RHV bug bot 2018-03-16 15:01:57 UTC

WARN: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2-ga': '?'}', ]

For more info please contact: rhv-devops: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2-ga': '?'}', ]

For more info please contact: rhv-devops

Comment 9 meital avital 2018-04-08 10:26:23 UTC

Verified with:
Engine Version: 4.2.2.6-0.1.el7
Host:
OS Version: RHEL - 7.5 - 8.el7
VDSM Version: vdsm-4.20.23-1.el7ev
Kernel Version: 3.10.0 - 861.el7.x86_64
KVM Version: 2.10.0 - 21.el7_5.1
LIBVIRT Version: libvirt-3.9.0-14.el7_5.2


Host info:
# virsh -r capabilities | head
<capabilities>
  <host>
    <uuid>19cde1af-9927-4009-8ab6-b96310057acd</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>EPYC</model>
      <vendor>AMD</vendor>
      <microcode version='134222343'/>
      <topology sockets='1' cores='2' threads='2'/>

Verification steps:
1.Create AMD EPYC cluster
2.Add Host1 to this cluster
2.Run VM1 on Host1
3.VM1 up and running

Comment 14 errata-xmlrpc 2018-05-15 17:46:12 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2018:1488

Comment 15 Franta Kust 2019-05-16 13:08:49 UTC

BZ<2>Jira Resync