Bug 1025474 - Nvidia GPU device assignment - qemu-kvm - NoSnoop support
Summary: Nvidia GPU device assignment - qemu-kvm - NoSnoop support
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Alex Williamson
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1025470
Blocks: 987658 1032793 1032795 1291981
TreeView+ depends on / blocked
 
Reported: 2013-10-31 19:01 UTC by Alex Williamson
Modified: 2016-07-28 07:15 UTC (History)
7 users (show)

Fixed In Version: qemu-kvm-1.5.3-17.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 09:38:11 UTC
Target Upstream Version:

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Description Alex Williamson 2013-10-31 19:01:37 UTC 
Description of problem:
Nvidia graphics cards can make use of NoSnoop transactions which bypass processor cache.  KVM needs to emulate instructions like WBINVD when NoSnoop is possible.

Version-Release number of selected component (if applicable):


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Additional info:
Comment 2 Miroslav Rezanina 2013-11-07 15:56:55 UTC 
Fix included in qemu-kvm-1.5.3-17.el7
Comment 5 juzhang 2014-03-03 06:30:44 UTC 
Please notes:

1.QE does not test Telsa card since we do not get this card from Nvidia.
2. "NVIDIA GPU Device Assignment Red Hat Enterprise Linux 7.0 Beta supports device assignment of NVIDIA professional series graphics devices (GRID and 
Quadro) as a secondary graphics device to emulated VGA.",According to last comment in bz987658's Doc Text, Telsa is not mentioned. 
3. QE will consider test telas card as well if we get the card from nvidia timely(before snapshot10). Free to update your comment as well.
Comment 7 Ludek Smid 2014-06-13 09:38:11 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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