Bug 1260837

Summary:	Q35 Machine type does not support S3 & S4
Product:	Red Hat Enterprise Linux 7	Reporter:	quxiaoya <xqu>
Component:	qemu-kvm-rhev	Assignee:	Marcel Apfelbaum <marcel>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.2	CC:	juzhang, knoel, marcel, mazhang, michen, qzhang, virt-maint, xfu
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-18 13:36:59 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:
Embargoed:

Description quxiaoya 2015-09-08 02:36:44 UTC

Description of problem:
when machine type is Q35, the S3 and S4 are not supported

Version-Release number of selected component (if applicable):
host info:
# uname -r
3.10.0-312.el7.x86_64
# rpm -qa | grep qemu
qemu-kvm-rhev-2.3.0-21.el7.x86_64

How reproducible:
100%

Steps to Reproduce:

1. boot command as follows: 
# /usr/libexec/qemu-kvm -M q35 -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1
2.
3.

Actual results:
VNC server running on `::1:5900'
qemu-kvm: Warning: global PIIX4_PM.disable_s3=1 not used
qemu-kvm: Warning: global PIIX4_PM.disable_s4=1 not used

Expected results:
Q35 support S3 & S4
Additional info:

Comment 3 Marcel Apfelbaum 2015-10-18 13:36:59 UTC

Hi,
This is not a bug.

Please use -global ICH9-LPC.disable_s3=0 -global ICH9-LPC.disable_s4=0 for Q35.
Also please use "0" to enable s3/s4 as the parameter is "disable" and a display device/driver that supports S3/S4.

If there are any specific issues, please open another BZ.
Thanks,
Marcel