From 437891b12b76a6f835b0b657d300537c34f21aab Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Thu, 25 Oct 2007 09:27:00 +0100 Subject: [PATCH] vt-d: add a vt-d howto setup document docs/misc/vtd.txt is a vt-d how-to document that should answer questions about how to use vt-d with latest Xen. Signed-off-by: Allen Kay --- docs/misc/vtd.txt | 50 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 docs/misc/vtd.txt diff --git a/docs/misc/vtd.txt b/docs/misc/vtd.txt new file mode 100644 index 0000000000..c33074b84a --- /dev/null +++ b/docs/misc/vtd.txt @@ -0,0 +1,50 @@ +Title : How to do PCI Passthrough with VT-d +Authors : Allen Kay + Weidong Han +Created : October-24-2007 +Updated : October-24-2007 + +How to turn on VT-d in Xen +-------------------------- + +1 ) cd xen-unstable.hg +2 ) make install +3 ) make linux-2.6-xen-config CONFIGMODE=menuconfig +4 ) change XEN->"PCI-device backend driver" from "M" to "*". +5 ) make linux-2.6-xen-build +6 ) make linux-2.6-xen-install +7 ) depmod 2.6.18.8-xen +8 ) mkinitrd -v -f --with=ahci --with=aacraid --with=sd_mod --with=scsi_mod initrd-2.6.18-xen.img 2.6.18.8-xen +9 ) cp initrd-2.6.18-xen.img /boot +10) lspci - select the PCI BDF you want to assign to guest OS +11) "hide" pci device from dom0 as following sample grub entry: + +title Xen-Fedora Core (2.6.18-xen) + root (hd0,0) + kernel /boot/xen.gz com1=115200,8n1 console=com1 vtd=1 + module /boot/vmlinuz-2.6.18.8-xen root=LABEL=/ ro console=tty0 console=ttyS0,115200,8n1 pciback.hide=(01:00.0)(03:00.0) pciback.verbose_request=1 apic=debug maxcpus=1 + module /boot/initrd-2.6.18-xen.img + +12) reboot system +13) add "pci" line in /etc/xen/hvm.conf for to assigned devices + pci = [ '01:00.0', '03:00.0' ] +15) start hvm guest and use "lspci" to see the passthru device and + "ifconfig" to see if IP address has been assigned to NIC devices. + + +VT-d Enabled Systems +-------------------- + +1) For VT-d enabling work on Xen, we have been using development +systems using following Intel motherboards: + - DQ35MP + - DQ35JO + +2) As far as we know, following OEM systems also has vt-d enabled. +Feel free to add others as they become available. + +- Dell: Optiplex 755 +http://www.dell.com/content/products/category.aspx/optix?c=us&cs=555&l=en&s=biz + +- HP Compaq: DC7800 +http://h10010.www1.hp.com/wwpc/us/en/en/WF04a/12454-12454-64287-321860-3328898.html -- 2.30.2