> Hi
>
> I'm interested in PCI passthrough support.
>
> I downloaded Linux Kernel 2.6.28-rc7 and build and ran KVM (which
> is KVM-79) on this kernel.
> I started KVM with the following command-lines:
> $ qemu-system-x86_64 -boot c -m 512 -hda test.qcow -localtime -k
> en-us -pcidevice host=00:19.0
> (00:19.0 is Intel(R) PRO/1000 Network Connection Device)
>
> However, KVM caused the following errors:
> Could not notify kernel about assigned device "00:19.0"
> register_real_device: Device or resource busy
> Segmantation_fault
>
> dmesg messages were as follows:
> $ dmesg
> [ 151.483167] [drm] Initialized drm 1.1.0 20060810
> [ 151.525100] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low)
> -> IRQ 16
> [ 151.525105] pci 0000:00:02.0: setting latency timer to 64
> [ 151.525193] pci 0000:00:02.0: irq 505 for MSI/MSI-X
> [ 151.525309] [drm] Initialized i915 1.6.0 20080730 on minor 0
> [ 187.854117] set status page addr 0x00033000
> [ 823.246792] kvm: guest NX capability removed
> [ 823.311659] kvm: guest NX capability removed
> [ 823.487849] qemu-system-x86[5940]: segfault at 1dc ip 0807c446
> sp 96420110 error 4 in qemu-system-x86_64[8048000+194000]
> [ 837.010304] kvm: guest NX capability removed
> [ 837.019163] e1000e 0000:00:19.0: BAR 0: can't reserve mem
> region [0xe0400000-0xe041ffff]
> [ 837.019163] kvm_vm_ioctl_assign_device: Could not get access to
> device regions
> [ 837.019194] kvm: guest NX capability removed
> [ 837.219560] qemu-system-x86[5944]: segfault at 1dc ip 0807c446
> sp 9636b110 error 4 in qemu-system-x86_64[8048000+194000]
>
> I think that my cpu and my chipset maybe support VT-x and VT-d.
>
http://www.intel.co.jp/products/desktop/motherboards/dq35jo/dq35jo-overview.htm
> CPU: Intel(R) Core(TM) 2 Duo CPU E6
> chipset: Intel(R) Q35 Express Chipset
>
> Any advive or tips will help ?
>
> Thanks,
> Kazushi
