On Fri, Aug 3, 2012 at 1:33 AM, Lukas Hejtmanek <xhejtman@xxxxxxxxxxx> wrote: > On Wed, Aug 01, 2012 at 04:36:14PM -0700, Yinghai Lu wrote: >> > so it seems, that pic=nocsr is a must now. >> >> yes. Or you have bios provide SRIOV support or 64 bit resource in _CRS. > > Well, I can use PCI passthrough in Xen now, however, it seems SR-IOV does not > work in case of Mellanox mlx4 driver. > > With 3.5 stock kernel, I got this message in virtual domain: > [ 2.666623] mlx4_core: Mellanox ConnectX core driver v1.1 (Dec, 2011) > [ 2.666635] mlx4_core: Initializing 0000:00:00.1 > [ 2.666717] mlx4_core 0000:00:00.1: enabling device (0000 -> 0002) > [ 2.666975] mlx4_core 0000:00:00.1: Xen PCI mapped GSI0 to IRQ168 > [ 2.667040] mlx4_core 0000:00:00.1: enabling bus mastering > [ 2.667184] mlx4_core 0000:00:00.1: Detected virtual function - running in slave mode > [ 2.667214] mlx4_core 0000:00:00.1: Sending reset > [ 2.667319] mlx4_core 0000:00:00.1: Sending vhcr0 > [ 2.667886] mlx4_core 0000:00:00.1: HCA minimum page size:1 > [ 2.668067] mlx4_core 0000:00:00.1: The host doesn't support eth interface > [ 2.668074] mlx4_core 0000:00:00.1: QUERY_FUNC_CAP command failed, aborting. > [ 2.668079] mlx4_core 0000:00:00.1: Failed to obtain slave caps > [ 2.668305] mlx4_core: probe of 0000:00:00.1 failed with error -93 > > not sure what does it mean. did you check if SRIOV bar for that card is assigned in DOM0 ? can you kvm with pci pass through? I only tried pci through with intel igb and ixgbe sriov device with kvm recently. please make sure you have intel_iommu=on ... Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
