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Bug 1511990

Summary: Provide a s390x specific /etc/modprobe.d/kvm.conf
Product: Red Hat Enterprise Linux 7 Reporter: David Hildenbrand <dhildenb>
Component: qemu-kvm-maAssignee: David Hildenbrand <dhildenb>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: low Docs Contact:
Priority: low    
Version: 7.5-AltCC: knoel, lmiksik, michen, qzhang
Target Milestone: rc   
Target Release: ---   
Hardware: s390x   
OS: Linux   
Whiteboard:
Fixed In Version: qemu-kvm-ma-2.10.0-7.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1517144 (view as bug list) Environment:
Last Closed: 2018-04-10 14:55:48 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1517144    

Description David Hildenbrand 2017-11-10 15:22:08 UTC
Description of problem:
kvm.conf is currently x86 specific

Steps to Reproduce:
1. cat kvm.conf

Actual results:

# Setting modprobe kvm_intel/kvm_amd nested = 1
# only enables Nested Virtualization until the next reboot or
# module reload. Uncomment the option applicable
# to your system below to enable the feature permanently.
#
# User changes in this file are preserved across upgrades.
#
# For Intel
#options kvm_intel nested=1
#
# For AMD
#options kvm_amd nested=1

Expected results:

# Setting modprobe kvm nested = 1
# only enables Nested Virtualization until the next reboot or
# module reload. Uncomment the option applicable
# to your system below to enable the feature permanently.
#
# User changes in this file are preserved across upgrades.
#
#options kvm nested=1

Comment 3 Miroslav Rezanina 2017-11-22 15:21:42 UTC
Fix included in qemu-kvm-ma-2.10.0-7.el7

Comment 5 Qunfang Zhang 2017-11-24 10:01:40 UTC
Reproduced on qemu-kvm-ma-2.10.0-6.el7.s390x: 

# cat /etc/modprobe.d/kvm.conf 
# Setting modprobe kvm_intel/kvm_amd nested = 1
# only enables Nested Virtualization until the next reboot or
# module reload. Uncomment the option applicable
# to your system below to enable the feature permanently.
#
# User changes in this file are preserved across upgrades.
#
# For Intel
#options kvm_intel nested=1
#
# For AMD
#options kvm_amd nested=1

Verified pass on qemu-kvm-ma-2.10.0-7.el7.s390x:

# cat /etc/modprobe.d/kvm.conf 
# Setting "modprobe kvm nested=1" only enables Nested Virtualization until
# the next reboot or module reload. Uncomment the option below to enable
# the feature permanently.
#
# User changes in this file are preserved across upgrades.
#
#options kvm nested=1

Setting to VERIFIED.

Comment 9 errata-xmlrpc 2018-04-10 14:55:48 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/RHBA-2018:0831