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>
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