Bug 734657

Summary: [Doc] New content for RHEL6 -- Trouble shooting Device Assignment
Product: Red Hat Enterprise Linux 6 Reporter: Don Dutile (Red Hat) <ddutile>
Component: doc-Virtualization_Administration_GuideAssignee: Platform Virt Docs <virt-docs>
Status: CLOSED EOL QA Contact: ecs-bugs
Severity: unspecified Docs Contact:
Priority: medium    
Version: 6.3CC: alex.williamson, chrisw, ddutile, knoel, lnovich, syeghiay, trichard
Target Milestone: rcKeywords: Documentation, Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-30 05:16:13 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:
Deadline: 2012-09-25   

Description Don Dutile (Red Hat) 2011-08-31 04:10:07 UTC
Description of problem:
Assigning a physical PCI device to a KVM guest has many subtle details which can easily go wrong for a user/admin.  Thus, adding a troubleshooting section to chapter 12 would be prudent.

So, here goes a recommended ToC:
  12.4 Troubleshooting Device Assignment
      .1 Multi-function devices (MFDs)
         .1 Security implications
         .2 hot-add versus static assignment
      .2 ACS Checking
      .3 PCI assignment (B:D.F) in guest
      .4 Potential driver issues
         .1 function-dependent addressing in MFDs
         .2 reset handling
      .5 How libvirt performs device assignment
         .1 PCI B:D.F assignment in guest
         .2 binding a device to pci-stub
         .3 reset-ing a PCI(e) device
         .4 binding device back to host 

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Comment 2 Don Dutile (Red Hat) 2011-08-31 04:18:17 UTC
To add to list:
Limitations of hot-add of PCI device(s)
  -- limit of 8

Comment 10 Ronen Hod 2012-10-10 12:38:31 UTC
Alex,

I believe that you are the best person to own the device assignment troubleshooting guide. It is mostly between you and ddd.

Thanks, Ronen.

Comment 19 Laura Bailey 2015-03-30 05:16:13 UTC
Closing EOL, since this bug was opened years ago. If anyone still wants this content, feel free to re-open the bug or create a new one.

Comment 20 Red Hat Bugzilla 2023-09-14 01:25:12 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days