Bug 1677209

Summary: [RFE] - add support for cascade lake cpu to rhel7
Product: Red Hat Enterprise Linux 7 Reporter: Jiri Denemark <jdenemar>
Component: libvirtAssignee: Jiri Denemark <jdenemar>
Status: CLOSED WONTFIX QA Contact: jiyan <jiyan>
Severity: unspecified Docs Contact: Parth Shah <pashah>
Priority: unspecified    
Version: 7.7CC: adevolder, ailan, egallen, ehabkost, fbaudin, jherrman, jiyan, jsuchane, kchamart, kkawana, lmen, lmiksik, michal.skrivanek, mjankula, mtessun, pashah, wangxinxin.wang, xujin, yalzhang, yuhuang
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 1678381 (view as bug list) Environment:
Last Closed: 2019-11-18 09:13:02 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1674411, 1760565, 1760612    
Bug Blocks: 1678381, 1693433, 1745045, 1749522    

Description Jiri Denemark 2019-02-14 09:47:18 UTC 
This bug was initially created as a copy of Bug #1674411

I am copying this bug because: 



Description of problem:
add support for cascade lake cpu to rhel7

Feature Description:
       Introduce new cpu model in qemu-kvm for Cascade platform.

       instructions detailed info, please ref https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf
Comment 1 Jiri Denemark 2019-02-14 09:49:46 UTC 
*** Bug 1674414 has been marked as a duplicate of this bug. ***
Comment 3 Wang Xin 2019-03-25 07:56:05 UTC 
Hi,

I found the patchset to support Cascadelake, and it seems to be ignored.
https://www.redhat.com/archives/libvir-list/2018-November/msg00967.html
Comment 4 Jiri Denemark 2019-04-08 08:50:11 UTC 
Patch series adding Cascadelake CPU model and support for MSR features was
sent upstream for review:

https://www.redhat.com/archives/libvir-list/2019-April/msg00529.html
Comment 7 Jaroslav Suchanek 2019-08-05 11:51:26 UTC 
This will be addressed in next major release of RHEL.
Comment 16 Eduardo Habkost 2019-10-04 13:32:08 UTC 
*** Bug 1758359 has been marked as a duplicate of this bug. ***
Comment 17 Eduardo Habkost 2019-10-09 14:00:46 UTC 
Adding Known Issue Doc Text, to make sure the consequences of not having arch-capabilities available are documented.
Comment 32 Jaroslav Suchanek 2019-11-18 09:13:02 UTC 
Based on latest consensus customers will have to use cpu host-passthrough if they require Cascade-Lake capabilities. Closing for RHEL-7.