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Re: [Xen-devel] Intel S3420GPLX VT-d VF question
On Thu, 09 Dec 2010 22:18:45 -0500, "Michael A. Collins" <mike@xxxxxxxxxxx> wrote:
On Wed, 8 Dec 2010 12:50:35 -0500, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:Take your time.Seems as the igb module was loaded in the initramfs and was not reloaded using the options specified in my igb.conf file under /etc/modprobe.d. I rmmod igb and did a modprobe igb max_vfs=7 andsuddenly all the Virtual Functions showed up. So that was the problemall along. Until I figure out how to edit the initramfs to load igb with max_vfs option, I'm putting the rmmod and modprobe in the rc.local file, that seems to work well and it gets executed before xend. I am build xen-4.0-testing to replace the rpms I used. Once all that is done and I test passing through one of the Virtual Functions to a vm, I'll report back. Mike
Ok, so I can pass one of the virtual functions through to a HVM. I think I'm still not out of the water though. It's acting very strangely and I have not successfully been able to very layer-2 connectivity with it. I am seeing the following in my HVM's qemu log:
register_real_device: Assigning real physical device 04:10.4 ... pt_dev_is_virtfn: 0000:04:10.4 is a SR-IOV Virtual Functionpt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x4:0x10.0x4 pt_register_regions: IO region registered (size=0x00004000 base_addr=0xb2448004) pt_register_regions: IO region registered (size=0x00004000 base_addr=0xb2468004)
pt_msix_init: get MSI-X table bar base b2468000 pt_msix_init: table_off = 0, total_entries = 3 pt_msix_init: errno = 2 pt_msix_init: mapping physical MSI-X table to 7fe3c4359000register_real_device: Real physical device 04:10.4 registered successfuly!
IRQ type = INTx generate a sci for PHP. deassert due to disable GPE bit.pt_pci_write_config: Warning: Guest attempt to set address to unused Base Address Register. [00:06.0][Offset:30h][Length:4] pt_iomem_map: e_phys=20000000 maddr=b2448000 type=0 len=16384 index=0 first_map=1 pt_iomem_map: e_phys=20004000 maddr=b2468000 type=0 len=16384 index=3 first_map=1
Now, I never see a pt_msi_setup: msi mapped with pirq XX line, which leads me to believe that the pass through isn't actually working. I am still using the mayoung built xen-4.0.1-6 rpms from koji, since I have not been able to successfully compile xen stubdom. I guess gcc 4.5 is just too new and untested for me to troubleshoot and get through. Hopefully, someone on here can point me in the right direction.
Mike _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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