[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] 3GB memory restriction for pv domU with NIC PCI Passthrough
On Wed, Apr 16, 2014 at 10:55:18AM +0800, topperxin wrote: > > > Hi > I met the same problem that you have already talked about. > I assigned 28 vCPUs , 4G memory, Intel 82599 VF to a PV domU VM. > I can not see the intel 82599 VF from lspci. > The xen version is 4.1.5 Right. This is fixed in Xen 4.3. Please try that. > please refer to the dmesg: > ========================================================= > [ 3.540273] pcifront pci-0: PCI host bridge to bus 0000:00 > [ 3.540280] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > [ 3.540285] pci_bus 0000:00: root bus resource [mem > 0x00000000-0x3fffffffffff] > [ 3.540291] pci_bus 0000:00: root bus resource [bus 00-ff] > [ 3.541343] pci 0000:00:00.3: [8086:10ed] type 00 class 0x020000 > [ 3.542147] pci 0000:00:00.3: reg 0x10: [mem 0xdf904000-0xdf907fff 64bit] > [ 3.542816] pci 0000:00:00.3: reg 0x1c: [mem 0xdfa04000-0xdfa07fff 64bit] > [ 3.545523] pcifront pci-0: New device on 0000:00:00.3 found. > [ 3.551644] pcifront pci-0: claiming resource 0000:00:00.3/0 > [ 3.551657] pci 0000:00:00.3: address space collision: [mem > 0xdf904000-0xdf907fff 64bit] conflicts with System RAM [mem > 0x00100000-0xffffffff] > [ 3.551662] pcifront pci-0: Could not claim resource 0000:00:00.3/0! > Device offline. Try using e820_host=1 in the guest config. > [ 3.551682] pcifront pci-0: claiming resource 0000:00:00.3/3 > [ 3.551688] pci 0000:00:00.3: address space collision: [mem > 0xdfa04000-0xdfa07fff 64bit] conflicts with System RAM [mem > 0x00100000-0xffffffff] > [ 3.551692] pcifront pci-0: Could not claim resource 0000:00:00.3/3! > Device offline. Try using e820_host=1 in the guest config. > [ 3.743814] microcode: CPU19 sig=0x206d7, pf=0x1, revision=0x70a > [ 3.750305] microcode: CPU20 sig=0x206d7, pf=0x1, revision=0x70a > [ 3.756410] microcode: CPU21 sig=0x206d7, pf=0x1, revision=0x70a > [ 3.761506] ixgbevf: Intel(R) 10 Gigabit PCI Express Virtual Function > Network Driver - version 2.7.12-k > [ 3.761513] ixgbevf: Copyright (c) 2009 - 2012 Intel Corporation. > [ 3.761650] ixgbevf 0000:00:00.3: device not available (can't reserve [mem > 0xdf904000-0xdf907fff 64bit]) > [ 3.761684] ixgbevf: probe of 0000:00:00.3 failed with error -22 > ========================================================= > > > At 2014-04-15 18:43:30,"Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx> wrote: > >On Tue, Apr 15, 2014 at 04:15:53PM +0800, topperxin wrote: > >> Hi list > >> These I'm checking PCI Passthrough to PV domU, and I found when the > >> memory larger than 3G, the PCI passthrough will not successfully. I got > >> some information from the google. Some guys said it's a bug, and has > >> already fixed, Why do I still meet this problem? What should I do? > > > >It should be fixed. Did you find any issues when doing PCI passthrough? > > > >> > >> > >> please refer to : > >> > >> > >> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1673 > >> Bug 1673 - 3GB memory restriction for pv domU with PCI > >> > >> > >> Thanks a lot. > > > >> _______________________________________________ > >> Xen-devel mailing list > >> Xen-devel@xxxxxxxxxxxxx > >> http://lists.xen.org/xen-devel > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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