I have not tried kvm on Centos 5.4 yet...does anyone know if it has support for virtio?
regards,
Christopher
On Wed, 2010-01-06 at 10:48 +0800, Christopher Chan wrote:
I have not tried kvm on Centos 5.4 yet...does anyone know if it has support for virtio?
Yes, it does.
From two guests hosted on centos 5.4/kvm:
# uname -rpmi 2.6.9-89.0.18.ELsmp i686 athlon i386
# lspci|grep -i virtio 00:04.0 SCSI storage controller: Qumranet, Inc. Virtio block device 00:08.0 RAM memory: Qumranet, Inc. Virtio memory balloon
# uname -rpmi 2.6.18-164.9.1.el5 i686 athlon i386
# lspci|grep -i virtio 00:03.0 Ethernet controller: Qumranet, Inc. Virtio network device 00:04.0 SCSI storage controller: Qumranet, Inc. Virtio block device 00:06.0 RAM memory: Qumranet, Inc. Virtio memory balloon
Steve
Hello Steve,
S.Tindall wrote:
On Wed, 2010-01-06 at 10:48 +0800, Christopher Chan wrote:
I have not tried kvm on Centos 5.4 yet...does anyone know if it has support for virtio?
Yes, it does.
Thanks for the confirmation. Now I can feel free to stick a Windows 2008 server on a Centos 5.4 box.
I cannot wait for samba to be able to handle AD domain logons and group policy and to make Windows server boxes a member in such a setup.
cheers,
Christopher
--- On Tue, 1/5/10, Christopher Chan christopher.chan@bradbury.edu.hk wrote:
From: Christopher Chan christopher.chan@bradbury.edu.hk Subject: Re: [CentOS] kvm and virto on Centos 5.4 To: centos@centos.org Date: Tuesday, January 5, 2010, 10:03 PM Hello Steve,
S.Tindall wrote:
On Wed, 2010-01-06 at 10:48 +0800, Christopher Chan
wrote:
I have not tried kvm on Centos 5.4 yet...does
anyone know if it has
support for virtio?
Yes, it does.
Thanks for the confirmation. Now I can feel free to stick a Windows 2008 server on a Centos 5.4 box.
Ideally you want bridged networking for KVM, especially with a guest like Win2k8.
KVM by itself will not install a supporting br0 device. However Xen will. Unless you want to spend anywhere from 20min-2hours cooking up a DIY br0 install, install Xen no matter if you never intend to use it.
KVM is meant to be used with Virt-manager although you can run qemu-kvm in its own console.
Your success with KVM has a lot to do with your hardware. Intel (vmx) far and away has more bugs than AMD (svx) for some new guests like Win7 and Win2k8. Google around for kvm or Xen crashes (in Win2k8) for your intended CPU if it is an Intel vmx type.
KVM is faster than qemu with kqemu-kernel and I've only come across one bug : the -usbdevice feature will not work in KVM but it works with qemu/kqemu.
Mr. X wrote:
--- On Tue, 1/5/10, Christopher Chan christopher.chan@bradbury.edu.hk wrote:
From: Christopher Chan christopher.chan@bradbury.edu.hk Subject: Re: [CentOS] kvm and virto on Centos 5.4 To: centos@centos.org Date: Tuesday, January 5, 2010, 10:03 PM Hello Steve,
S.Tindall wrote:
On Wed, 2010-01-06 at 10:48 +0800, Christopher Chan
wrote:
I have not tried kvm on Centos 5.4 yet...does
anyone know if it has
support for virtio?
Yes, it does.
Thanks for the confirmation. Now I can feel free to stick a Windows 2008 server on a Centos 5.4 box.
Ideally you want bridged networking for KVM, especially with a guest like Win2k8.
Already doing bridged networking for Windows XP guests.
KVM by itself will not install a supporting br0 device. However Xen will. Unless you want to spend anywhere from 20min-2hours cooking up a DIY br0 install, install Xen no matter if you never intend to use it.
Huh? Where did you get that from? I used bridged networking with KVM on Ubuntu.
KVM is meant to be used with Virt-manager although you can run qemu-kvm in its own console.
Your success with KVM has a lot to do with your hardware. Intel (vmx) far and away has more bugs than AMD (svx) for some new guests like Win7 and Win2k8. Google around for kvm or Xen crashes (in Win2k8) for your intended CPU if it is an Intel vmx type.
Glad I always root for AMD. I will be getting an Opteron box for this. I guess things have not changed much when it comes to Intel buggy chips.
KVM is faster than qemu with kqemu-kernel and I've only come across one bug : the -usbdevice feature will not work in KVM but it works with qemu/kqemu.
I have not tried USB passthrough (I think that is what you are talking about...) so no comment.
-
Christopher Chan -
Mr. X -
S.Tindall