ia64/xen-unstable

changeset 18277:384f819f3ac0

vtd: Update vtd.txt

Add "iommu=1" option in grub, due to VT-d is not enabled by default.

In addition, describes how to enable MSI/MSI-x for assigned devices.

Signed-off-by: Weidong Han <weidong.han@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Aug 06 10:56:58 2008 +0100 (2008-08-06)
parents 11aaad01c5e5
children bd81792b24b2
files docs/misc/vtd.txt
line diff
     1.1 --- a/docs/misc/vtd.txt	Wed Aug 06 10:54:55 2008 +0100
     1.2 +++ b/docs/misc/vtd.txt	Wed Aug 06 10:56:58 2008 +0100
     1.3 @@ -2,7 +2,7 @@ Title   : How to do PCI Passthrough with
     1.4  Authors : Allen Kay    <allen.m.kay@intel.com>
     1.5            Weidong Han  <weidong.han@intel.com>
     1.6  Created : October-24-2007
     1.7 -Updated : May-07-2008
     1.8 +Updated : August-06-2008
     1.9  
    1.10  How to turn on VT-d in Xen
    1.11  --------------------------
    1.12 @@ -21,7 +21,7 @@ 11) "hide" pci device from dom0 as follo
    1.13  
    1.14  title Xen-Fedora Core (2.6.18-xen)
    1.15          root (hd0,0)
    1.16 -        kernel /boot/xen.gz com1=115200,8n1 console=com1
    1.17 +        kernel /boot/xen.gz com1=115200,8n1 console=com1 iommu=1
    1.18          module /boot/vmlinuz-2.6.18.8-xen root=LABEL=/ ro xencons=ttyS console=tty0 console=ttyS0, pciback.hide=(01:00.0)(03:00.0)
    1.19          module /boot/initrd-2.6.18-xen.img
    1.20  
    1.21 @@ -32,6 +32,11 @@ 15) start hvm guest and use "lspci" to s
    1.22      "ifconfig" to see if IP address has been assigned to NIC devices.
    1.23  
    1.24  
    1.25 +Enable MSI/MSI-x for assigned devices
    1.26 +-------------------------------------
    1.27 +Add "msi=1" option in kernel line of host grub.
    1.28 +
    1.29 +
    1.30  Caveat on Conventional PCI Device Passthrough
    1.31  ---------------------------------------------
    1.32