On 2016/7/26 16:07, Ard Biesheuvel wrote: > On 26 July 2016 at 09:34, Shannon Zhao <zhaoshenglong@xxxxxxxxxx> wrote: >> > Hi， >> > >> > Recently I'm trying to use usb keyboard and mouse with QEMU on ARM64. Below is my QEMU command line, >> > host and guest kernel both are 4.7.0-rc7+, and I ran it on Hikey board. >> > >> > qemu-system-aarch64 \ >> > -smp 1 -cpu host -enable-kvm \ >> > -m 256 -M virt \ >> > -k en-us \ >> > -nographic \ >> > -device usb-ehci -device usb-kbd -device usb-mouse -usb\ >> > -kernel Image \ >> > -initrd guestfs.cpio.gz \ >> > -append "rdinit=/sbin/init console=ttyAMA0 root=/dev/ram earlycon=pl011,0x9000000 rw" >> > >> > The following guest log shows that usb controller can be probed but the keyboard and mouse can't be >> > found. >> > >> > [ 1.597433] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver >> > [ 1.599562] ehci-pci: EHCI PCI platform driver >> > [ 1.608082] ehci-pci 0000:00:03.0: EHCI Host Controller >> > [ 1.609485] ehci-pci 0000:00:03.0: new USB bus registered, assigned bus number 1 >> > [ 1.611833] ehci-pci 0000:00:03.0: irq 49, io mem 0x10041000 >> > [ 1.623599] ehci-pci 0000:00:03.0: USB 2.0 started, EHCI 1.00 >> > [ 1.625867] hub 1-0:1.0: USB hub found >> > [ 1.626906] hub 1-0:1.0: 6 ports detected >> > [ 1.628685] ehci-platform: EHCI generic platform driver >> > [ 1.630263] ehci-msm: Qualcomm On-Chip EHCI Host Controller >> > [ 1.631947] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver >> > [ 1.633547] ohci-pci: OHCI PCI platform driver >> > [ 1.634807] ohci-platform: OHCI generic platform driver >> > [...] >> > [ 1.939001] usb 1-1: new high-speed USB device number 2 using ehci-pci >> > [ 17.467040] usb 1-1: device not accepting address 2, error -110 >> > [ 17.579165] usb 1-1: new high-speed USB device number 3 using ehci-pci >> > [ 32.287242] random: dd urandom read with 7 bits of entropy available >> > [ 33.110970] usb 1-1: device not accepting address 3, error -110 >> > [ 33.223030] usb 1-1: new high-speed USB device number 4 using ehci-pci >> > [ 43.635185] usb 1-1: device not accepting address 4, error -110 >> > [ 43.747033] usb 1-1: new high-speed USB device number 5 using ehci-pci >> > [ 54.159043] usb 1-1: device not accepting address 5, error -110 >> > [ 54.160752] usb usb1-port1: unable to enumerate USB device >> > [ 54.307290] usb 1-2: new high-speed USB device number 6 using ehci-pci >> > [ 69.839052] usb 1-2: device not accepting address 6, error -110 >> > [ 69.951249] usb 1-2: new high-speed USB device number 7 using ehci-pci >> > [ 85.483171] usb 1-2: device not accepting address 7, error -110 >> > [ 85.595035] usb 1-2: new high-speed USB device number 8 using ehci-pci >> > [ 90.619247] usb 1-2: device descriptor read/8, error -110 >> > [ 95.743482] usb 1-2: device descriptor read/8, error -110 >> > [ 95.959165] usb 1-2: new high-speed USB device number 9 using ehci-pci >> > [ 106.371177] usb 1-2: device not accepting address 9, error -110 >> > [ 106.372894] usb usb1-port2: unable to enumerate USB device >> > >> > lsusb shows: >> > root@genericarmv8:~# lsusb >> > Bus 001 Device 001: ID 1d6b:0002 >> > >> > Besides, I have also tried QEMU TCG without KVM. The guest can successfully probe usb controller, >> > keyboard and mouse. >> > lsusb shows: >> > root@genericarmv8:~# lsusb >> > Bus 001 Device 002: ID 0627:0001 >> > Bus 001 Device 003: ID 0627:0001 >> > Bus 001 Device 001: ID 1d6b:0002 >> > >> > So it looks like that usb keyboard and mouse don't work with KVM on QEMU ARM64 while they can work >> > with TCG. IIUC, all the usb devices are emulated by QEMU, it has nothing with KVM. So it really >> > confused me and I'm not familiar with usb devices. Also I have seen someone else reports this issue >> > before[1]. >> > >> > [1]https://lists.gnu.org/archive/html/qemu-arm/2016-06/msg00110.html >> > >> > Any comments and help are welcome. Thanks in advance. >> > > Does your QEMU have this patch? > http://git.qemu.org/?p=qemu.git;a=commitdiff;h=5d636e21c44ecf982a22a7bc4ca89186079ac283 Great! I applied this patch and the keyboard and mouse can work with KVM now. Thanks a lot, Ard. Thanks, -- Shannon _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
