On Sat, 2015-05-23 at 20:12 +0200, Joachim Schiele wrote: > just wanted to report that i got the external graphics card to work with > native windows 7 and setup 1.x + pci compaction! > > see: > http://blog.lastlog.de/posts/setup-1.x/ > > i hope to get it also working in linux host using kvm+win7 as guest soon. I just setup something similar, using the EXP GDC "Beast" rather than the PE4H. My Lenovo T530 only leaves 390MB for MMIO space and doesn't provide any 64bit space via ACPI. I also need to fiddle with the switches to delay the card so the laptop doesn't hang during BIOS boot. I pass pci=nocrs,realloc on the kernel commandline in order to get the GPU programmed. I've only actually tested it with KVM/VFIO GPU assignment and it seems to work well, or at least as well as can be expected over a x1 5GT/s link. Thanks, Alex > On 18.03.2015 21:48, Joachim Schiele wrote: > > hi, > > > > i've run with pci=realloc two tests, the results are here (also the > > dmesg) outputs: > > > > https://lastlog.de/wiki/index.php/T530%2BNvida_GTX_660_TI_eGPU_via_PE4H#debugging_using_pci.3Drealloc > > > > thanks in advance, > > joachim schiele > > > > > > On 18.03.2015 18:06, Bjorn Helgaas wrote: > >> [+cc Alex] > >> > >> Hi Joachim, > >> > >> Thanks a lot for the bug report. > >> > >> On Wed, Mar 18, 2015 at 8:32 AM, Joachim Schiele <js@xxxxxxxxxx> wrote: > >>> hi, > >>> > >>> === question === > >>> with the setup described below, i can't pass the graphics adapter into a > >>> KVM guest as described below. > >>> > >>> is the BAR stuff in the listing an error i wuld have to fix in order to > >>> get my eGPU running? if so, what could i do about it > >> > >> Yes. If we can't assign resources to the BARs, we can't enable the > >> device. If you boot with "pci=realloc", Linux will try harder to > >> assign space (including moving other devices to make space if > >> necessary). > >> > >>> i've seen that the > >>> laptop will hang on boot if the eGPU is powered on system startup. > >> > >> It's possible the BIOS is hanging because it tried to assign space for > >> the eGPU but failed. > >> > >>> i can > >>> see the adapter after hotplugging it using lspci and i never see an > >>> image on the external display. > >> > >> The device will appear in lspci even if we can't assign space for it. > >> In that case the device would not work, even though it appears in > >> lspci. > >> > >> So please try "pci=realloc". Also, please collect a complete dmesg > >> log and "lspci -vv" output (with eGPU attached). That will contain > >> the information needed to see whether it's possible even in principle > >> to make this work. > >> > >>> my config is this: > >>> sudo qemu-system-x86_64 -enable-kvm \ > >>> -m 8192 \ > >>> -M q35 \ > >>> -cpu host,kvm=off \ > >>> -smp 4,sockets=1,cores=4,threads=1 \ > >>> -vga none \ > >>> -vnc none \ > >>> -device > >>> ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \ > >>> -device > >>> vfio-pci,host=04:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \ > >>> -device vfio-pci,host=04:00.1,bus=root.1,addr=00.1 \ > >>> -drive > >>> file=/home/joachim/en_windows_7_professional_x64_dvd_X15-65805.iso,id=isocd > >>> -device ide-cd,bus=ide.1,drive=isocd \ > >>> -drive file=/var/lib/libvirt/images/win7.qcow2,format=qcow2,id=hdd > >>> -device ide-hd,bus=ide.0,drive=hdd \ > >>> -bios /usr/share/seabios/bios.bin \ > >>> -soundhw ac97 > >>> > >>> === when hotplugging the eGPU === > >>> i want to use a Nvidia GTX 660 TI as an eGPU using PE4H and when i > >>> hotplug the ePCI adapter i get this log on a 3.18 ubuntu kernel: > >>> > >>> [ 960.145002] vgaarb: device changed decodes: > >>> PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=none > >>> [ 966.574858] pci 0000:04:00.0: [10de:1183] type 00 class 0x030000 > >>> [ 966.574892] pci 0000:04:00.0: reg 0x10: [mem 0x00000000-0x00ffffff] > >>> [ 966.574921] pci 0000:04:00.0: reg 0x14: [mem 0x00000000-0x07ffffff > >>> 64bit pref] > >>> [ 966.574950] pci 0000:04:00.0: reg 0x1c: [mem 0x00000000-0x01ffffff > >>> 64bit pref] > >>> [ 966.574963] pci 0000:04:00.0: reg 0x24: [io 0x0000-0x007f] > >>> [ 966.574974] pci 0000:04:00.0: reg 0x30: [mem 0x00000000-0x0007ffff pref] > >>> [ 966.575224] vgaarb: device added: > >>> PCI:0000:04:00.0,decodes=io+mem,owns=none,locks=none > >>> [ 966.575227] vgaarb: device changed decodes: > >>> PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=none > >>> [ 966.575327] pci 0000:04:00.1: [10de:0e0a] type 00 class 0x040300 > >>> [ 966.575356] pci 0000:04:00.1: reg 0x10: [mem 0x00000000-0x00003fff] > >>> [ 966.998345] pci 0000:04:00.0: BAR 1: no space for [mem size > >>> 0x08000000 64bit pref] > >>> [ 966.998350] pci 0000:04:00.0: BAR 1: failed to assign [mem size > >>> 0x08000000 64bit pref] > >>> [ 966.998353] pci 0000:04:00.0: BAR 3: no space for [mem size > >>> 0x02000000 64bit pref] > >>> [ 966.998355] pci 0000:04:00.0: BAR 3: failed to assign [mem size > >>> 0x02000000 64bit pref] > >>> [ 966.998357] pci 0000:04:00.0: BAR 0: no space for [mem size 0x01000000] > >>> [ 966.998358] pci 0000:04:00.0: BAR 0: failed to assign [mem size > >>> 0x01000000] > >>> [ 966.998360] pci 0000:04:00.0: BAR 6: assigned [mem > >>> 0xf1400000-0xf147ffff pref] > >>> [ 966.998363] pci 0000:04:00.1: BAR 0: assigned [mem 0xf1480000-0xf1483fff] > >>> [ 966.998369] pci 0000:04:00.1: BAR 0: error updating (0xf1480000 != > >>> 0xffffffff) > >>> [ 966.998373] pci 0000:04:00.0: BAR 5: assigned [io 0x3000-0x307f] > >>> [ 966.998379] pci 0000:04:00.0: BAR 5: error updating (0x003001 != > >>> 0xffffffff) > >>> [ 966.998392] pcieport 0000:00:1c.2: Max Payload Size set to 128/ 128 > >>> (was 128), Max Read Rq 128 > >>> [ 966.998403] pci 0000:04:00.0: Max Payload Size set to 16384/ 256 (was > >>> 16384), Max Read Rq 16384 > >>> [ 966.998414] pci 0000:04:00.1: Max Payload Size set to 16384/ 256 (was > >>> 16384), Max Read Rq 16384 > >>> [ 966.998472] pci-stub 0000:04:00.0: claimed by stub > >>> [ 966.998495] pci-stub 0000:04:00.1: claimed by stub > >>> [ 967.099040] pcieport 0000:00:1c.2: Max Payload Size set to 128/ 128 > >>> (was 128), Max Read Rq 128 > >>> [ 967.099059] pci-stub 0000:04:00.0: Max Payload Size set to 128/ 256 > >>> (was 128), Max Read Rq 512 > >>> [ 967.099075] pci-stub 0000:04:00.1: Max Payload Size set to 128/ 256 > >>> (was 128), Max Read Rq 512 > >>> [ 7735.938854] vgaarb: device changed decodes: > >>> PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=none > >>> > >>> > >>> > >>> > >>> more at: > >>> > >>> https://lastlog.de/wiki/index.php/T530%2BNvida_GTX_660_TI_eGPU_via_PE4H > >>> > >>> i derived the scripts i'm using from this guide: > >>> http://www.pugetsystems.com/labs/articles/Multiheaded-NVIDIA-Gaming-using-Ubuntu-14-04-KVM-585/ > >>> > >>> -- > >>> 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 > > > > > > > -- > 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 -- 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
