disk partitioning for multiOS machine

Daniel P. Berrange berrange at redhat.com
Tue Aug 19 10:16:02 UTC 2008


On Tue, Aug 19, 2008 at 12:09:29PM +0200, Ralf Ertzinger wrote:
> Hi.
> 
> On Tue, 19 Aug 2008 10:59:57 +0100, Daniel P. Berrange wrote:
> 
> > NB, there are paravirtualized drivers for Windows on KVM available
> > that will make I/O fast. Any OS is slow without paravirt drivers, no
> > matter what virt technology you use.
> 
> Paravirtualized means: KVM without processor support or with?

KVM requires hardware virt support for CPU virtualization.

For I/O drivers (ie disk, net) it uses emulated hardware from QEMU by
default, but also supports VirtIO which is the generic Linux driver
framework for paravirtualization. This provides a paravirtualized
network & disk driver.

> I.e., is the plan to make KVM not suck on machines that do not have
> Vanderpool/Pacifica, or are those simply out of luck with xen gone?

Unlikely to happen.

Daniel
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