I run a win10 guest in ubuntu 18.10 with intel igd vfio passed through into the guest: CPU: Intel(R) Core(TM) i3-7100U CPU @ 2.40GHz VGA: Intel Corporation HD Graphics 620 (rev 02)
Host boot in legacy mode: root@localhost:/home# efibootmgr EFI variables are not supported on this system. root@localhost:/home# ps -elf | grep qemu 6 S libvirt+ 1941 1 99 80 0 - 1205084 poll_s 21:54 ? 00:04:32 qemu-system-x86_64 -enable-kvm -name guest=win10,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-3-win10/master-key.aes -machine pc-i440fx-cosmic,accel=kvm,usb=off,dump-guest-core=off -cpu Broadwell-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 3584 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid d4e06db6-08e3-407c-8788-8896a17965c0 -display none -no-user-config -nodefaults -chardev socket,id=charmonitor,fd=24,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/win10.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=52:54:00:0f:34:ec,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,rombar=1,romfile=/home/vbios.dump -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 -bios /usr/share/seabios/bios.bin -chardev file,id=seabios,path=/tmp/bios.log -device isa-debugcon,iobase=0x402,chardev=seabios -set device.hostdev0.x-igd-opregion=on -set device.hostdev0.x-igd-gms=32 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny -msg timestamp=on In SeaBIOS log file, it shows guest already booted, but no signal on the screen. SeaBIOS (version 1.11.1-1ubuntu1) BUILD: gcc: (Ubuntu 8.2.0-7ubuntu1) 8.2.0 binutils: (GNU Binutils for Ubuntu) 2.31.1 RamSize: 0xc0000000 [cmos] Relocating init from 0x000e3220 to 0xbffb2180 (size 56800) Found QEMU fw_cfg QEMU fw_cfg DMA interface supported RamBlock: addr 0x0000000000000000 len 0x00000000c0000000 [e820] RamBlock: addr 0x0000000100000000 len 0x0000000020000000 [e820] Moving pm_base to 0x600 boot order: 1: /pci@i0cf8/ide@1,1/drive@0/disk@0 2: HALT === PCI bus & bridge init === PCI: pci_bios_init_bus_rec bus = 0x0 === PCI device probing === Found 12 PCI devices (max PCI bus is 00) === PCI new allocation pass #1 === PCI: check devices === PCI new allocation pass #2 === PCI: IO: c000 - c1cf PCI: 32: 00000000c0000000 - 00000000fec00000 PCI: map device bdf=00:03.0 bar 0, addr 0000c000, size 00000100 [io] PCI: map device bdf=00:02.0 bar 4, addr 0000c100, size 00000040 [io] PCI: map device bdf=00:04.0 bar 4, addr 0000c140, size 00000020 [io] PCI: map device bdf=00:04.1 bar 4, addr 0000c160, size 00000020 [io] PCI: map device bdf=00:04.2 bar 4, addr 0000c180, size 00000020 [io] PCI: map device bdf=00:05.0 bar 0, addr 0000c1a0, size 00000020 [io] PCI: map device bdf=00:01.1 bar 4, addr 0000c1c0, size 00000010 [io] PCI: map device bdf=00:02.0 bar 0, addr fd000000, size 01000000 [mem] PCI: map device bdf=00:03.0 bar 6, addr fe000000, size 00080000 [mem] PCI: map device bdf=00:02.0 bar 6, addr fe080000, size 00010000 [mem] PCI: map device bdf=00:03.0 bar 1, addr fe090000, size 00001000 [mem] PCI: map device bdf=00:04.7 bar 0, addr fe091000, size 00001000 [mem] PCI: map device bdf=00:02.0 bar 2, addr e0000000, size 10000000 [prefmem] PCI: map device bdf=00:05.0 bar 4, addr f0000000, size 00004000 [prefmem] PCI: init bdf=00:00.0 id=8086:1237 PCI: init bdf=00:01.0 id=8086:7000 PIIX3/PIIX4 init: elcr=00 0c PCI: init bdf=00:01.1 id=8086:7010 PCI: init bdf=00:01.3 id=8086:7113 Using pmtimer, ioport 0x608 PCI: init bdf=00:02.0 id=8086:5916 Intel IGD OpRegion enabled at 0xbfffe000, size 8KB, dev 00:02.0 Intel IGD BDSM enabled at 0xbf700000, size 8MB, dev 00:02.0 PCI: init bdf=00:03.0 id=10ec:8139 PCI: init bdf=00:04.0 id=8086:2934 PCI: init bdf=00:04.1 id=8086:2935 PCI: init bdf=00:04.2 id=8086:2936 PCI: init bdf=00:04.7 id=8086:293a PCI: init bdf=00:05.0 id=1af4:1002 PCI: init bdf=00:1f.0 id=8086:9d4e PCI: Using 00:02.0 for primary VGA handle_smp: apic_id=0x1 handle_smp: apic_id=0x2 handle_smp: apic_id=0x3 Found 4 cpu(s) max supported 4 cpu(s) Copying PIR from 0xbffbfca0 to 0x000f0f80 Copying MPTABLE from 0x00006e9c/bffa8cd0 to 0x000f0e30 Copying SMBIOS entry point from 0x00006e9c to 0x000f0e10 Scan for VGA option rom Running option rom at c000:0003 Turning on vga text mode console SeaBIOS (version 1.11.1-1ubuntu1) Machine UUID d4e06db6-08e3-407c-8788-8896a17965c0 EHCI init on dev 00:04.7 (regs=0xfe091020) UHCI init on dev 00:04.0 (io=c140) UHCI init on dev 00:04.1 (io=c160) UHCI init on dev 00:04.2 (io=c180) ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9) ATA controller 2 at 170/374/0 (irq 15 dev 9) Found 0 lpt ports Found 1 serial ports PS2 keyboard initialized ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (40960 MiBytes) Searching bootorder for: /pci@i0cf8/*@1,1/drive@0/disk@0 All threads complete. Scan for option roms Running option rom at d000:0003 pmm call arg1=1 pmm call arg1=0 pmm call arg1=1 pmm call arg1=0 Searching bootorder for: /pci@i0cf8/*@3 Searching bootorder for: /rom@genroms/kvmvapic.bin Searching bootorder for: HALT drive 0x000f0d70: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=83886080 Running option rom at d100:0003 Space available for UMB: d3800-ef000, f0000-f0d70 Returned 118784 bytes of ZoneHigh e820 map has 10 items: 0: 0000000000000000 - 000000000009fc00 = 1 RAM 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED 3: 0000000000100000 - 00000000bf700000 = 1 RAM 4: 00000000bf700000 - 00000000bff00000 = 2 RESERVED 5: 00000000bff00000 - 00000000bffdd000 = 1 RAM 6: 00000000bffdd000 - 00000000c0000000 = 2 RESERVED 7: 00000000feffc000 - 00000000ff000000 = 2 RESERVED 8: 00000000fffc0000 - 0000000100000000 = 2 RESERVED 9: 0000000100000000 - 0000000120000000 = 1 RAM enter handle_19: NULL Booting from Hard Disk... Booting from 0000:7c00 No errors found in dmesg or libvirt log. Before virsh create, there's fail error in dmesg: [drm] failed to retrieve link info, disabling eDP
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