Use a real Windows 7 partition in Virtualbox / KVM / VMware Player under Linux

Re:Use a real Windows 7 partition in Virtualbox / KVM / VMwa... by w1ntermute on Wednesday December 25, 2013 @07:31PM (#6964828)

The idea's that you can boot into "native" Windows when you need to do stuff with 3D graphics, but boot into virtualized Windows when you don't. This way, you can use the same install for both purposes, allowing you to save storage space and avoid having two different Windows installs that you have to setup and maintain.

[ Parent | on HN ]

Re:Use a real Windows 7 partition in Virtualbox / KVM / VMwa... by yareally on Wednesday December 25, 2013 @07:46PM (#6964857)

Xen has native GPU passthrough, though I've never tried it with a non-vm partition (it is possible to do so though).

[ Parent | on HN ]

Re:Use a real Windows 7 partition in Virtualbox / KVM / VMwa... by w1ntermute on Wednesday December 25, 2013 @08:36PM (#6964953)

Is the performance comparable?

[ Parent | on HN ]

Re:Use a real Windows 7 partition in Virtualbox / KVM / VMwa... by wtallis on Wednesday December 25, 2013 @10:28PM (#6965150)

Yes. It's implemented using a hardware IOMMU so that transfers between the PCI device and the VM can be properly mapped from the VM's address space to the host's physical address space. There's slight overhead on PCI transactions, but everything happening on the GPU is exactly the same, because the VM is running the same standard Windows drivers. The only real complication is that it removes the GPU from the host's control, so it's easiest to set up on systems with more than one GPU.

[ Parent | on HN ]