virtualbox.org

Dear VirtualBox team,

I have an Windows 64bit host system, and a Windows 32bit guest system. I would like to use my PCI card on my VM (Windows 32bit).
- I enabled the "Intel Virtualization Technology for Directed I/O" (VT-d) in boot settings
- I enable in VM/setting the Enable VT-x/AMD-V and Enabla Nested Paging
- I installed the drivers for PCI card
- I ran the cmd and i attached the device, which
cd c:\Program Files\Oracle\VirtualBox\
VBoxManage modifyvm Windows7-Enterprise-32bit –pciattach 03:00.0
After I start the VM and i got this message (attached jpeg):

Failed to open a session for the virtual machine Windows7-Enterprise-32Bit.

A virtual device is configured in the VM settings but the device implementation is missing.

A possible reason for this error is a missing extension pack. Note that as of VirtualBox 4.0, certain features (for example USB 2.0 support and remote desktop) are only available from an 'extension pack' which must be downloaded and installed separately (VERR_PDM_DEVICE_NOT_FOUND).

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

I arleady installed the 5.1.6 extension pack.
Can you help how can i start the VM?

Thanky you for your help!

Regards,
Bence

Were did you get the idea that PCI passthrough should be working with a Windows host?
https://www.virtualbox.org/manual/ch09. ... assthrough
"When running on Linux hosts, with a recent enough kernel (at least version 2.6.31) experimental host PCI devices passthrough is available."

Aha, i see, so it can't work anyway