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Re: [Xen-devel] problems with pciback on 2.6.27 with xenclient patches

To: Ben Garside <ben@xxxxxxxxxxxxxxxxxx>

From: Jean Guyader <jean.guyader@xxxxxxxxx>

Date: Wed, 17 Jun 2009 02:31:49 +0100

Delivery-date: Tue, 16 Jun 2009 18:32:15 -0700

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List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi Ben, The "I/O Virtualization Enable" log message is displayed by Xen and not by pciback in dom0. Could you give us the output of "xm info". Thanks, Jean 2009/6/16 Ben Garside <ben@xxxxxxxxxxxxxxxxxx>: > Hi, am not sure if this is the most appropriate place to post, so > excuse me if > it's not. I've been tearing my hair out (and there's not much left) > trying to > get pciback to work. I picked the xci based kernel (2.6.27 with the pq > patches > (using guilt) - summarised at http://xenbits.xensource.com/xenclient/) > as it > seems to have the best support for pciback (and ultimate goal of vga > passthrough) for a recent kernel. Compile was ok, XEN related kernel > parameters > are below. When I add the iommu=1 vtd=1 pciback.permissive > pciback.hide=(00:1b.0) to the boot args, it looks like the card is > "seized", > only later to be released again - no mention of I/O virtualization > which I have > seen in logs of a few other people. Doing an lspci in Dom0 shows the > card as > normal. Have tried with a few different cards (this particular pci > device is > onboard sound). > > I have tried it with xen 3.40 (release) and with unstable (currently > 3.5). My > machine is a Dell T5400 (xeon processor) and has all the vt-d options > enabled in > the bios. Oh one other thing I noticed is that if I put a spurious > (incorrect) > option as a boot arg, I don't get any warning that this is > unrecognised - have > also tried adding debug to the boot line, but it has no effect. > > Any help much appreciated - this is driving me crazy! > > > Grub entry: > title Xen 3.4 Kernel 2.6.27.19-5.1 > uuid 6724237b-5a56-4765-b3e0-21ce3d358ab3 > kernel /xen-3.4.gz > module /vmlinuz-2.6.27.19-5.1 debug > root=/dev/mapper/VolGroup0-dom0_root ro > iommu=1 vtd=1 dom0_mem=512M pciback.permissive pciback.hide=(00:1b.0) > console=tty0 > module /initrd-2.6.27.19-5.1.img > > > Dmesg Entries: > > [ 0.522373] pciback: adding device ID type: 1 for 0000:00:1b.0 > [ 0.522470] pciback 0000:00:00.0: probing... > [ 0.522554] pciback 0000:00:01.0: probing... > [ 0.522633] pciback 0000:00:05.0: probing... > [ 0.522713] pciback 0000:00:09.0: probing... > [ 0.522794] pciback 0000:00:10.0: probing... > [ 0.522875] pciback 0000:00:10.1: probing... > [ 0.522956] pciback 0000:00:10.2: probing... > [ 0.523037] pciback 0000:00:10.3: probing... > [ 0.523118] pciback 0000:00:10.4: probing... > [ 0.523199] pciback 0000:00:11.0: probing... > [ 0.523280] pciback 0000:00:15.0: probing... > [ 0.523361] pciback 0000:00:15.1: probing... > [ 0.523442] pciback 0000:00:16.0: probing... > [ 0.523523] pciback 0000:00:16.1: probing... > [ 0.523604] pciback 0000:00:1b.0: probing... > [ 0.523679] pciback 0000:00:1b.0: seizing device > [ 0.523755] pciback 0000:00:1b.0: pcistub_device_alloc > [ 0.523832] pciback 0000:00:1b.0: deferring initialization > [ 0.523915] pciback 0000:00:1c.0: probing... > [ 0.524067] pciback 0000:00:1d.0: probing... > [ 0.524149] pciback 0000:00:1d.1: probing... > > ... > [ 0.896278] pciback: pcistub_init_devices_late > [ 0.896356] pciback 0000:00:1b.0: initializing... > [ 0.896433] pciback 0000:00:1b.0: pcistub_dev_data_alloc > [ 0.896511] pciback 0000:00:1b.0: initializing config > [ 0.896586] pciback 0000:00:1b.0: initializing virtual > configuration space > [ 0.896666] pciback 0000:00:1b.0: added config field at offset 0x04 > [ 0.896741] pciback 0000:00:1b.0: added config field at offset 0x3c > [ 0.896817] pciback 0000:00:1b.0: added config field at offset 0x3d > [ 0.896893] pciback 0000:00:1b.0: added config field at offset 0x0c > [ 0.896969] pciback 0000:00:1b.0: added config field at offset 0x0d > [ 0.897044] pciback 0000:00:1b.0: added config field at offset 0x0f > [ 0.897134] pciback 0000:00:1b.0: added config field at offset 0x10 > [ 0.897222] pciback 0000:00:1b.0: added config field at offset 0x14 > [ 0.897306] pciback 0000:00:1b.0: added config field at offset 0x18 > [ 0.897389] pciback 0000:00:1b.0: added config field at offset 0x1c > [ 0.897472] pciback 0000:00:1b.0: added config field at offset 0x20 > [ 0.897556] pciback 0000:00:1b.0: added config field at offset 0x24 > [ 0.897639] pciback 0000:00:1b.0: added config field at offset 0x30 > [ 0.897736] pciback 0000:00:1b.0: Found capability 0x1 at 0x50 > [ 0.897812] pciback 0000:00:1b.0: added config field at offset 0x50 > [ 0.897888] pciback 0000:00:1b.0: added config field at offset 0x52 > [ 0.897966] pciback 0000:00:1b.0: added config field at offset 0x54 > [ 0.898052] pciback 0000:00:1b.0: added config field at offset 0x56 > [ 0.898128] pciback 0000:00:1b.0: added config field at offset 0x57 > [ 0.898204] pciback 0000:00:1b.0: enabling device > [ 0.898290] pciback 0000:00:1b.0: reset device > [ 0.932248] serio: i8042 KBD port at 0x60,0x64 irq 1 > [ 0.932353] serio: i8042 AUX port at 0x60,0x64 irq 12 > [ 0.948131] mice: PS/2 mouse device common for all mice > > > > > 2.6.27 with patches compile args: > # CONFIG_X86_XEN is not set > CONFIG_X86_64_XEN=y > CONFIG_X86_XEN_GENAPIC=y > CONFIG_XEN_PCIDEV_FRONTEND=y > CONFIG_XEN_PCIDEV_FE_DEBUG=y > # CONFIG_INPUT_XEN is not set > # CONFIG_TCG_XEN is not set > CONFIG_XEN=y > CONFIG_XEN_INTERFACE_VERSION=0x00030207 > # XEN > CONFIG_XEN_PRIVILEGED_GUEST=y > # CONFIG_XEN_UNPRIVILEGED_GUEST is not set > CONFIG_XEN_PRIVCMD=y > CONFIG_XEN_XENBUS_DEV=y > CONFIG_XEN_NETDEV_ACCEL_SFC_UTIL=m > CONFIG_XEN_BACKEND=y > CONFIG_XEN_BLKDEV_BACKEND=y > CONFIG_XEN_BLKDEV_TAP=y > CONFIG_XEN_NETDEV_BACKEND=y > # CONFIG_XEN_NETDEV_PIPELINED_TRANSMITTER is not set > CONFIG_XEN_NETDEV_LOOPBACK=m > CONFIG_XEN_PCIDEV_BACKEND=y > CONFIG_XEN_PCIDEV_BACKEND_VPCI=y > # CONFIG_XEN_PCIDEV_BACKEND_PASS is not set > # CONFIG_XEN_PCIDEV_BACKEND_SLOT is not set > # CONFIG_XEN_PCIDEV_BACKEND_CONTROLLER is not set > CONFIG_XEN_PCIDEV_BE_DEBUG=y > CONFIG_XEN_TPMDEV_BACKEND=y > CONFIG_XEN_SCSI_BACKEND=m > CONFIG_XEN_BLKDEV_FRONTEND=y > CONFIG_XEN_NETDEV_FRONTEND=y > CONFIG_XEN_NETDEV_ACCEL_SFC_FRONTEND=m > CONFIG_XEN_SCSI_FRONTEND=m > CONFIG_XEN_GRANT_DEV=y > CONFIG_XEN_FRAMEBUFFER=y > CONFIG_XEN_KEYBOARD=y > CONFIG_XEN_DISABLE_SERIAL=y > CONFIG_XEN_SYSFS=y > CONFIG_XEN_NR_GUEST_DEVICES=256 > # CONFIG_XEN_COMPAT_030002_AND_LATER is not set > # CONFIG_XEN_COMPAT_030004_AND_LATER is not set > # CONFIG_XEN_COMPAT_030100_AND_LATER is not set > # CONFIG_XEN_COMPAT_030200_AND_LATER is not set > CONFIG_XEN_COMPAT_LATEST_ONLY=y > CONFIG_XEN_COMPAT=0xffffff > CONFIG_XEN_SMPBOOT=y > CONFIG_XEN_DEVMEM=y > CONFIG_XEN_BALLOON=y > CONFIG_XEN_SCRUB_PAGES=y > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel

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