[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] Re: vtd / pci passthru broken in 3.3?
On Thu, Dec 11, 2008 at 11:59 PM, Rui-Tao Dong <ruitao.dong@xxxxxxxxx> wrote: > > Hi Andy, > > Thanks for the reply and sorry about the messed up email address. > > I installed the same version of the BIOS and enabled VT-d & VT and > powered it off for a few minutes. After restarting, I checked to make > sure that VT-d & VT are still enabled. > > I did > > root (hd0,6) > kernel /boot/xen.gz-3.3.0 > module /boot/vmlinuz-2.6.18-92.1.10.el5xen ro vtd=1 iommu=1 Thats wrong, you need to pass iommu=1 to xen, not the linux kernel: kernel /boot/xen.gz-3.3.0 vtd=1 iommu=1 Andy > root=LABEL=/CentOS > module /boot/initrd-2.6.18-92.1.10.el5xen.img > > but xm dmesg still tells me > > (XEN) I/O virtualisation disabled. > > -- > Rui-Tao > > > andrew.lyon> I have never updated the BIOS, it came with 1.1b: > > andrew.lyon> # dmidecode 2.9 > > andrew.lyon> SMBIOS 2.5 present. > andrew.lyon> 57 structures occupying 2109 bytes. > andrew.lyon> Table at 0xBFF66000. > > andrew.lyon> Handle 0x0000, DMI type 0, 24 bytes > andrew.lyon> BIOS Information > andrew.lyon> Vendor: Phoenix Technologies LTD > andrew.lyon> Version: 1.1b > andrew.lyon> Release Date: 08/04/2008 > andrew.lyon> Address: 0xE3740 > andrew.lyon> Runtime Size: 116928 bytes > andrew.lyon> ROM Size: 2048 kB > andrew.lyon> Characteristics: > > > andrew.lyon> Make sure you have enabled vt-d in the BIOS, if it was > disabled you > andrew.lyon> will need to power off the system (shutdown then remove > power cord for > andrew.lyon> a few seconds) and then power up for it to be enabled. > > andrew.lyon> If you are using Xen 3.3 you need iommu=1, older > versions used vtd=1. > > andrew.lyon> Andy > _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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