Rob Hoes <rob.h...@citrix.com> a écrit :
Is your VM a PV guest?
I'm not sure. I installed an ubuntu 12.04 from the iso
ubuntu-12.04.1-server-amd64.iso. I guess that the linux kernel in this
distribution has some Xen drivers and is a aware that it is running in
a virtualized environment. So I guess that it is a PV guest but I'm not
100% sure.
To do this, try the following command to see if your card was detected by XCP:
[root@xcp ~]# xe gpu-group-list uuid ( RO) :
cd98c84c-73c6-39aa-4ae2-4844f5718210
name-label ( RW): Group of Matrox Electronics Systems Ltd.
MGA G200eW WPCM450 GPUs
name-description ( RW): uuid ( RO) :
773b9dfb-4663-9b0a-1122-da80fcb08c2a
name-label ( RW): Group of NVIDIA Corporation GF100 [Tesla
M2070Q] GPUs
name-description ( RW): When I start my VM I get the following error:
----
The following table provides per-host reasons for why the VM could not
be started:
xcp : Cannot start here [Api_errors.Server_error("VM_REQUIRES_IOMMU", _)]
There were no hosts available to complete the specified operation.
----
So if I understand correctly, that means that my machine cannot do IOMMU?
I checked in XEN logs and I found:
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Extended Page Tables (EPT)
(XEN) - Virtual-Processor Identifiers (VPID)
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
I also checked on ark.intel for my xeon E5640 and it is said that VT-d
is supported. I suspect that my BIOS cannot enable it :(
Regards,
Guillaume
PS: Sorry Rob for the duplicated email, I forgot to send it to the ML
the first time.
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