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Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KV
From: |
Bandan Das |
Subject: |
Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM) |
Date: |
Thu, 12 Mar 2015 20:02:50 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) |
jacob jacob <address@hidden> writes:
> On Thu, Mar 12, 2015 at 3:07 PM, Bandan Das <address@hidden> wrote:
>> jacob jacob <address@hidden> writes:
>>
>>> Hi,
>>>
>>> Seeing failures when trying to do PCI passthrough of Intel XL710 40G
>>> interface to KVM vm.
>>> 0a:00.1 Ethernet controller: Intel Corporation Ethernet
>>> Controller XL710 for 40GbE QSFP+ (rev 01)
>>
>> You are assigning the PF right ? Does assigning VFs work or it's
>> the same behavior ?
>
> Yes.Assigning VFs worked ok.But this had other issues while bringing down VMs.
> Interested in finding out if PCI passthrough of 40G intel XL710
> interface is qualified in some specific kernel/kvm release.
So, it could be the i40e driver then ? Because IIUC, VFs use a separate
driver. Just to rule out the possibility that there might be some driver fixes
that
could help with this, it might be a good idea to try a 3.19 or later upstream
kernel.
>>> From dmesg on host:
>>>
>>>> [80326.559674] kvm: zapping shadow pages for mmio generation wraparound
>>>> [80327.271191] kvm [175994]: vcpu0 unhandled rdmsr: 0x1c9
>>>> [80327.271689] kvm [175994]: vcpu0 unhandled rdmsr: 0x1a6
>>>> [80327.272201] kvm [175994]: vcpu0 unhandled rdmsr: 0x1a7
>>>> [80327.272681] kvm [175994]: vcpu0 unhandled rdmsr: 0x3f6
>>>> [80327.376186] kvm [175994]: vcpu0 unhandled rdmsr: 0x606
>>
>> These are harmless and are related to unimplemented PMU msrs,
>> not VFIO.
>>
>> Bandan
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- [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/12
- [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/12
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Alex Williamson, 2015/03/12
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Bandan Das, 2015/03/12
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/12
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM),
Bandan Das <=
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/13
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/16
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Bandan Das, 2015/03/16
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/16
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Bandan Das, 2015/03/16
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/16
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Bandan Das, 2015/03/18
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), jacob jacob, 2015/03/18
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Shannon Nelson, 2015/03/18
- Re: [Qemu-devel] PCI passthrough of 40G ethernet interface (Openstack/KVM), Shannon Nelson, 2015/03/18