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Old 12-30-2006, 02:18 PM   #1
toaster.waffle
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Registered: Feb 2005
Location: Ontario, Canada
Distribution: Gentoo
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What kernel-based virtual machine (KVM) means for gaming?


I'm excited to hear about virtual machine technology being integrated into kernel 2.6.20.

Does this mean that I can boot into a Windows image within linux to play my favourite Windows-based games? I assume that speed won't be as fast as native, but pretty close. Is this correct?

My experience with virtualization is limited, I've only played with QEmu which is not a virtual machine, but an emulator. QEmu didn't allow me to install any drivers, so I never tested if 3D stuff worked.

Any other helpful info would be also appreciated.

Thanks!
 
Old 12-30-2006, 10:38 PM   #2
FnordPerfect
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That sure would be amazing, but I doubt it.

I only heard of kvm a few days ago, but as far as I understand, kvm and qemu share a lot of code and functionality.

When talking about virtualization, it is mainly the cpu that is being virtualized, and everything cpu-related is executed with nearly-native speed inside the guest OS when being virtualized.
qemu, when run on x86 architecture with the kqemu kernel module, can also achieve near-native execution speed.
But this is only one part that is needed for running games.
I don't know how kvm virtualizes other hardware, but as far as qemu goes, it *emulates* a few pieces of hardware, e.g. a Sound Blaster 16 and a an old Cirrus graphic board and network interface cards.
I managed without problems to install Windows98 with qemu and play some very old Windows games; I am talking about DirectX 3 stuff here. I don't think accelerated 3D graphics will be possible.

However, I maybe wrong, and I would be glad to be corrected on this issue.

Bye
fabian
 
Old 12-30-2006, 10:51 PM   #3
toaster.waffle
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While waiting for a reply, I looked to see if my processor supported AMD-V. (I have a socket-939 Athlon 64 3700+)

From what I could find it has to be socket AM2 (according to Xen's site). If anyone could correct me if I'm wrong, that'd be great news.

Certainly I will try when this stuff gets more mature (ie, when Gentoo offers .20) I just wonder if that generic video card will run at the speeds that the driver for the hardware that the virtualization is running on will allow...

Nevertheless,
 
  


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