Re: [Xen-users] PCI passthrough w/o module in kernel

["H. Sieger" <powerhouse.linux@xxxxxxxxx>]

Using pciback as module in initramfs works just fine (using Debian/Ubuntu). I use the following to build the initramfs - with this there is no need to add anything to grub:

echo "xen-pciback passthrough=1 hide=(02:00.0)(02:00.1)" >> /etc/initramfs-tools/modules

On Thursday, May 15, 2014 11:16 PM, Paul Muster <paul@xxxxxxxxxx> wrote:

Hi there,

I have a question regarding PCI passthrough without xen-pciback in the
kernel.

Will it work to add the module to initrd

  # echo xen-pciback >> /etc/initramfs-tools/modules
  # update-initramfs -u -k all

with the well-known parameters in kernel command-line

  # grep pciback /boot/grub/grub.cfg
        module  /vmlinuz-3.2.0-4-686-pae placeholder root=/dev/<root>
ro  xen-pciback.hide=(02:00.0)

?

I'm not sure how to understand the second sentence on

http://wiki.xen.org/wiki/Assign_Hardware_to_DomU_with_PCIBack_as_module

| If the Dom0 XenLinux kernel is built with pciback as a module,
| attempting to use the kernel command-line parameter pciback.hide
| won't work. This includes loading pciback in an initrd.

If the above described way works, could it be added as a third option?

---

Option 3

Targeted at distributions using initrd like Debian Wheezy.

a) Add the module to initrd

  # echo xen-pciback >> /etc/initramfs-tools/modules
  # update-initramfs -u -k all

b) Use the well-known parameters in kernel command-line

  # grep pciback /boot/grub/grub.cfg
          module  /vmlinuz-3.2.0-4-686-pae placeholder root=/dev/<root>
ro  xen-pciback.hide=(02:00.0)

---

Thanks & kind regards

Paul

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users