Today I return to use Ubuntu 18.04.1 LTS: root@test:~# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
root@test:~# uname -a Linux idv 4.15.0-33-generic #36-Ubuntu SMP Wed Aug 15 16:00:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux root@test:~# uname -r 4.15.0-33-generic root@test:~# qemu-system-x86_64 --version QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.4) Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers Prepare as what I did before ... then virsh create, black screen again, dmesg shows some exception in kernel: [ 482.998862] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/l1tf.html for details. [ 483.495986] pmd_set_huge: Cannot satisfy [mem 0xb7c00000-0xb7e00000] with a huge-page mapping due to MTRR override. [ 484.310469] general protection fault: 0000 [#1] SMP PTI [ 484.310502] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables devlink iptable_filter intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_cstate intel_rapl_perf snd_hda_codec_realtek snd_hda_codec_generic snd_seq_midi snd_seq_midi_event snd_hda_intel snd_hda_codec snd_rawmidi joydev snd_hda_core snd_hwdep snd_pcm input_leds snd_seq lpc_ich shpchp snd_seq_device snd_timer snd binfmt_misc soundcore kvm_intel kvm acpi_pad mac_hid sch_fq_codel vfio_pci [ 484.310661] vfio_virqfd irqbypass vfio_iommu_type1 vfio parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic i2c_algo_bit drm_kms_helper syscopyarea sysfillrect r8169 sysimgblt fb_sys_fops mii usbhid ahci drm libahci hid video [ 484.310732] CPU: 0 PID: 1272 Comm: CPU 0/KVM Not tainted 4.15.0-33-generic #36-Ubuntu [ 484.310764] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CRESCENTBAY, BIOS 5.011 09/02/2016 [ 484.310801] RIP: 0010:is_invalid_reserved_pfn+0x6e/0xa0 [vfio_iommu_type1] [ 484.310832] RSP: 0018:ffffa692c11d7c68 EFLAGS: 00010202 [ 484.310871] RAX: 5710738949085b89 RBX: ffff8950abb739c0 RCX: ffff8950b4fff000 [ 484.310910] RDX: 5710738949085b88 RSI: 0000000000000000 RDI: ffffd06582df0000 [ 484.310950] RBP: ffffa692c11d7cb0 R08: 0000000000000007 R09: ffffa692c11d7c70 [ 484.310989] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 484.311029] R13: ffffa692c11d7da8 R14: 00000000fffffff2 R15: ffff8950abb73a30 [ 484.311069] FS: 00007f7b23efe700(0000) GS:ffff8950b2e00000(0000) knlGS:0000000000000000 [ 484.311119] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 484.311157] CR2: 00007f7b1c0cf000 CR3: 00000000ac350004 CR4: 00000000001626f0 [ 484.311196] Call Trace: [ 484.311234] ? vaddr_get_pfn+0x185/0x200 [vfio_iommu_type1] [ 484.311275] vfio_pin_pages_remote+0x71/0x3b0 [vfio_iommu_type1] [ 484.311315] vfio_iommu_type1_ioctl+0x395/0x905 [vfio_iommu_type1] [ 484.311358] vfio_fops_unl_ioctl+0x6b/0x270 [vfio] [ 484.311398] do_vfs_ioctl+0xa8/0x630 [ 484.311436] ? handle_mm_fault+0xb1/0x1f0 [ 484.311475] ? __do_page_fault+0x270/0x4d0 [ 484.311512] SyS_ioctl+0x79/0x90 [ 484.311550] do_syscall_64+0x73/0x130 [ 484.311588] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 484.311626] RIP: 0033:0x7f7b322af5d7 [ 484.311661] RSP: 002b:00007f7b23efd298 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 484.311711] RAX: ffffffffffffffda RBX: 0000558737d5ae80 RCX: 00007f7b322af5d7 [ 484.311751] RDX: 00007f7b23efd2a0 RSI: 0000000000003b71 RDI: 0000000000000012 [ 484.311790] RBP: 00000000fe400000 R08: 0000000000000000 R09: 0000000000000000 [ 484.311830] R10: 00000000fe400000 R11: 0000000000000246 R12: 0000000000400000 [ 484.311869] R13: 00007f7b23efd2a0 R14: 0000000000000000 R15: 00000000fe7fffff [ 484.311909] Code: 02 02 75 01 c3 48 c1 e7 06 48 03 3d 35 ae 6a f4 48 8b 47 20 a8 01 75 0f 48 8b 07 48 8b 07 48 c1 e8 0b 83 e0 01 eb dd 48 8d 50 ff <48> 8b 40 ff 48 c1 e8 0b 83 e0 01 48 39 d7 74 e0 55 48 89 e5 48 [ 484.312024] RIP: is_invalid_reserved_pfn+0x6e/0xa0 [vfio_iommu_type1] RSP: ffffa692c11d7c68 [ 484.312090] ---[ end trace 00f76f6e80792f13 ]--- The vm is running and there's no other error in libvirt qemu log: root@test:~# ps -elf | grep qemu 6 S libvirt+ 1257 1 0 80 0 - 703903 futex_ 09:46 ? 00:00:01 qemu-system-x86_64 -enable-kvm -name guest=windows_7_ultimate_with_sp1_x64,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-windows_7_ultimate_w/master-key.aes -machine pc-i440fx-bionic,accel=kvm,usb=off,dump-guest-core=off -cpu Haswell-noTSX-IBRS,vme=on,f16c=on,rdrand=on,hypervisor=on,arat=on,xsaveopt=on,abm=on,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff -m 2048 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid 963d8c33-0b99-45a8-91de-16c22975a51a -display none -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-windows_7_ultimate_w/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x4.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x4 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x4.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x4.0x2 -drive file=/home/windows_7_ultimate_with_sp1_x64.qcow2,format=qcow2,if=none,id=drive-ide0-0-0 -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -netdev tap,fd=26,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:b8:20:01,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0,bus=usb.0,port=1 *-device vfio-pci,host=00:02.0,id=hostdev0,bus=pci.0,addr=0x2* -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -msg timestamp=on Alex Williamson <alex.william...@redhat.com> 于2018年8月24日周五 上午3:32写道： > On Thu, 23 Aug 2018 15:57:11 +0800 > acewind <acew...@gmail.com> wrote: > > > Yesterday I tried IGD with Ubuntu 18.04 but failed: > > https://www.redhat.com/archives/vfio-users/2018-August/msg00026.html > > > > Today I use the same hardware enviroment, reinstall OS to CentOS 7.3 > > without GUI, upgrade kernel and qemu version: > > > > CPU: i3-4010U, support vt-d. > > > > [root@test ~]# lspci | grep VGA > > 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT > Integrated > > Graphics Controller (rev 09) > > (Only one IGD with vga and hdmi interface) > > > > [root@test ~]# uname -r > > 4.18.3-1.el7.centos.x86_64 > > > > [root@test ~]# /usr/libexec/qemu-kvm --version > > QEMU emulator version 2.10.0(qemu-kvm-ev-2.10.0-21.el7_5.4.1) > > Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers > > You might be going further off track with this, the official RH > products do not support IGD assignment in any way other than kvmgt, ie. > GVT-g, ie. vGPU. In fact the RHEL kernel specifically disables some of > the IGD and VGA features necessary for legacy mode IGD assignment. I > don't know how much of this Centos carries to their product, but if > you're moving to Centos with the expectation that IGD assignment is > better supported there from the RH lineage, it's not. > > > Then I blacklist i915, forbid *fb: > > > > [root@test ~]# cat /etc/default/grub | grep GRUB_CMDLINE_LINUX > > GRUB_CMDLINE_LINUX="crashkernel=auto rhgb quiet intel_iommu=on iommu=pt > > video=vesafb:off vga=normal nofb nomodeset i915.modeset=0 > > nouveau.modeset=0 rd.driver.blacklist=nouveau,i915 plymouth.ignore-udev" > > > > [root@test ~]# cat /etc/modprobe.d/blacklist-i915.conf > > install i915 /bin/true > > > > After rebooted: > > [root@test ~]# cat /proc/cmdline > > BOOT_IMAGE=/vmlinuz-4.18.3-1.el7.centos.x86_64 > > root=UUID=78feccee-2f23-4ab6-b386-2b51d1664da7 ro crashkernel=auto rhgb > > quiet intel_iommu=on iommu=pt video=vesafb:off vga=normal nofb nomodeset > > i915.modeset=0 nouveau.modeset=0 rd.driver.blacklist=nouveau,i915 > > plymouth.ignore-udev > > > > [root@test ~]# cat /proc/iomem | grep fb > > 01c031d1-02463fbf : Kernel data > > f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f] > > f8000000-fbffffff : Reserved > > f8000000-fbffffff : pnp 00:05 > > > > [root@test ~]# lsmod | grep i915 > > ... nothing ... > > It's really not necessary to go to these sorts of lengths to disable > i915. You can simply 'virsh nodedev-detach pci_0000_00_02_0'. IME, > the place where i915 causes trouble is if you later attempt to re-bind > the device to i915. > > > Now I begin to load vfio modules. > > > > [root@test ~]# modprobe vfio > > [root@test ~]# modprobe vfio-pci > > > > [root@test ~]# echo "vfio-pci" > > > /sys/bus/pci/devices/0000:00:02.0/driver_override > > [root@test ~]# ./vfio-pci-bind.sh 0000:00:02.0 > > (script ref: > > > https://github.com/andre-richter/vfio-pci-bind/blob/master/vfio-pci-bind.sh > ) > > > > [root@test ~]# lspci -v -s 00:02.0 > > 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT > Integrated > > Graphics Controller (rev 09) (prog-if 00 [VGA controller]) > > Subsystem: Intel Corporation Haswell-ULT Integrated Graphics > Controller > > Flags: fast devsel, IRQ 16 > > Memory at a7c00000 (64-bit, non-prefetchable) [size=4M] > > Memory at b0000000 (64-bit, prefetchable) [size=256M] > > I/O ports at 4000 [size=64] > > [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] > > Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- > > Capabilities: [d0] Power Management version 2 > > Capabilities: [a4] PCI Advanced Features > > Kernel driver in use: vfio-pci > > Kernel modules: i915 > > > > Now virsh create a win7 vm, xml file is: > > > > <domain type='kvm' id='3' xmlns:qemu=' > > http://libvirt.org/schemas/domain/qemu/1.0'> > > <name>windows_7_ultimate_with_sp1_x64</name> > > <uuid>2fcccb90-f622-481a-8819-367c642c0a09</uuid> > > <memory unit='KiB'>2097152</memory> > > <currentMemory unit='KiB'>2097152</currentMemory> > > <vcpu placement='static'>2</vcpu> > > <resource> > > <partition>/machine</partition> > > </resource> > > <os> > > <type arch='x86_64' machine='pc-i440fx-rhel7.5.0'>hvm</type> > > <boot dev='hd'/> > > </os> > > <features> > > <acpi/> > > <apic/> > > <hyperv> > > <relaxed state='on'/> > > <vapic state='on'/> > > <spinlocks state='on' retries='8191'/> > > </hyperv> > > </features> > > <cpu mode='custom' match='exact' check='full'> > > <model fallback='forbid'>Haswell-noTSX</model> > > <feature policy='require' name='vme'/> > > <feature policy='require' name='f16c'/> > > <feature policy='require' name='rdrand'/> > > <feature policy='require' name='hypervisor'/> > > <feature policy='require' name='arat'/> > > <feature policy='require' name='xsaveopt'/> > > <feature policy='require' name='abm'/> > > </cpu> > > <clock offset='localtime'> > > <timer name='rtc' tickpolicy='catchup'/> > > <timer name='pit' tickpolicy='delay'/> > > <timer name='hpet' present='no'/> > > <timer name='hypervclock' present='yes'/> > > </clock> > > <on_poweroff>destroy</on_poweroff> > > <on_reboot>restart</on_reboot> > > <on_crash>destroy</on_crash> > > <pm> > > <suspend-to-mem enabled='no'/> > > <suspend-to-disk enabled='no'/> > > </pm> > > <devices> > > <emulator>/usr/libexec/qemu-kvm</emulator> > > <disk type='file' device='disk'> > > <driver name='qemu' type='qcow2'/> > > <source file='/home/windows_7_ultimate_with_sp1_x64.qcow2'/> > > <backingStore/> > > <target dev='hda' bus='ide'/> > > <alias name='ide0-0-0'/> > > <address type='drive' controller='0' bus='0' target='0' unit='0'/> > > </disk> > > > > <hostdev mode='subsystem' type='pci' managed='yes'> > > <driver name='vfio'/> > > <source> > > <address domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> > > </source> > > <alias name='hostdev0'/> > > <address type='pci' domain='0x0000' bus='0x00' slot='0x02' > > function='0x0'/> > > </hostdev> > > </devices> > > > > <qemu:commandline> > > <qemu:arg value='-bios'/> > > <qemu:arg value='/usr/share/seabios/bios.bin'/> > > <qemu:arg value='-chardev'/> > > <qemu:arg value='file,id=seabios,path=/tmp/bios.log'/> > > <qemu:arg value='-device'/> > > <qemu:arg value='isa-debugcon,iobase=0x402,chardev=seabios'/> > > </qemu:commandline> > > </domain> > > > > After created, the vm is running, monitor screen turn to black then no > > output. > > The end of seabios log is: > > > > ... > > Scan for VGA option rom > > Running option rom at c000:0003 > > > > Any problem with VGA rom? In the BIOS I have already enabled CSM and the > > option rom of video is set to legacy. > > > > Ref to > http://lists.gnu.org/archive/html/qemu-discuss/2018-04/msg00052.html > > and https://github.com/awilliam/rom-parser > > > > I dump the vga rom: > > > > [root@test rom]# echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom > > [root@test rom]# cat /sys/devices/pci0000:00/0000:00:02.0/rom > > vbios.dump > > [root@test rom]# echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom > > > > [root@test rom]# ./rom-parser/rom-parser vbios.dump > > Valid ROM signature found @0h, PCIR offset 40h > > PCIR: type 0 (x86 PC-AT), vendor: 8086, device: 0406, class: 030000 > > PCIR: revision 3, vendor revision: 0 > > Last image > > > > [root@test rom]# lspci -nns 00:02.0 > > 00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT > > Integrated Graphics Controller [8086:0a16] (rev 09) > > > > The device code in the rom is diffrent from vga device? So I modify it > with > > rom-fixer command: > > > > [root@test rom]# ./rom-parser/rom-fixer ./vbios.dump > > Valid ROM signature found @0h, PCIR offset 40h > > PCIR: type 0 (x86 PC-AT), vendor: 8086, device: 0406, class: 030000 > > PCIR: revision 3, vendor revision: 0 > > > > Modify vendor ID 8086? (y/n): y > > New vendor ID: 8086 > > Overwrite vendor ID with 8086? (y/n): y > > Modify device ID 0406? (y/n): y > > New device ID: 0a16 > > Overwrite device ID with 0a16? (y/n): y > > Last image > > ROM checksum is invalid, fix? (y/n): y > > The only reason this should be necessary is if you're already using an > externally provided rom via <rom>. QEMU will do the above for you > automatically when it's reading the rom directly from the device. So > there's no net effect of this change. > > > Then I edit the vm xml, and romfile args to hostdev: > > <rom file='/path/to/vbios.dump'/> > > > > Then destroy and create the vm again, still black screen ... > > > > Is there any more methods to debug？ > > I'd use upstream kernel and QEMU. Your previous post indicated DMAR > faults. A couple of those are normal, but you seem to have a fair > number of them and the address is incrementing as if our attempt to > trap and relocate stolen memory isn't working. It's possible this > particular GPU uses a different page table format that we don't know > how to handle yet. Thanks, > > Alex >
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