Bug 1735374

Summary: Support virtio-pmem - persistent memory (qemu)
Product: Red Hat Enterprise Linux Advanced Virtualization Reporter: Luiz Capitulino <lcapitulino>
Component: qemu-kvmAssignee: Luiz Capitulino <lcapitulino>
qemu-kvm sub component: Devices QA Contact: Yumei Huang <yuhuang>
Status: CLOSED WONTFIX Docs Contact:
Severity: low    
Priority: unspecified CC: chayang, ddepaula, dhildenb, jinzhao, juzhang, knoel, rbalakri, virt-maint, yuhuang
Version: ---Keywords: FutureFeature, TestOnly
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: qemu-kvm-4.2.0-1.module+el8.2.0+4793+b09dd2fb Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-01-18 13:53:59 UTC Type: Feature Request
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: 1735366    
Bug Blocks: 1735375    

Description Luiz Capitulino 2019-07-31 20:43:21 UTC 
Backport qemu virtio-pmem support merged upstream (git log 7b9829bc6c7d84056c3a1c60737f71db4d2871e4..207efa18ac9eb7085a44cad24489d0da54bc5f65).
Comment 8 Ademar Reis 2020-02-05 23:01:46 UTC 
QEMU has been recently split into sub-components and as a one-time operation to avoid breakage of tools, we are setting the QEMU sub-component of this BZ to "General". Please review and change the sub-component if necessary the next time you review this BZ. Thanks
Comment 11 David Hildenbrand 2021-01-18 13:53:59 UTC 
virtio-pmem still has a known preflush issue in the upstream kernel, which has to be sorted out upstream first.

As the author of virtio-pmem is no longer working at Red Hat, we won't be supporting virtio-pmem in RHEL8 and will disable it in RHEL9 until we have an upstream fix.

Until then, we really can't test and support this in QEMU.