On 06/27/2016 09:05 AM, Kevin Zhao wrote: > Hi Cole, > > On 24 June 2016 at 19:35, Cole Robinson <crobi...@redhat.com> wrote: > >> On 06/24/2016 12:58 AM, Kevin Zhao wrote: >>> Hi Peter, >>> Follow your advice, I have complied the Qemu v2.6. >>> stack@u202158:~$ kvm --version >>> QEMU emulator version 2.6.50 (v2.6.0-1280-g6f1d2d1-dirty), Copyright (c) >>> 2003-2008 Fabrice Bellard >>> With this newest version, I use virt-manager to create the guest , >> the >>> xml file is in the attachment. But the Qemu return error when creating: >>> *error: internal error: process exited while connecting to monitor: >>> qemu-system-aarch64: -device >>> pci-bridge,chassis_nr=2,id=pci,bus=pci,addr=0x1: Duplicate ID 'pci' for >>> device* >>> >> >> That's probably this libvirt issue fixed in 1.3.4 and later: >> >> https://www.redhat.com/archives/libvirt-users/2016-April/msg00030.html >> >> I suggest testing with libvirt.git as well, there's been aarch64 related >> patches trickling in regularly >> >> - Cole >> >> Thanks for your valuable advice. Follow your advice, I have build the > upstream vesion > of libvirt. The libvirt version is : > root@u202158:/opt/stack/kevin/libvirt/daemon# ./libvirtd > 2016-06-27 12:11:03.501+0000: 28044: info : libvirt version: 2.0.0 > I stopped the system libvirtd-bin and libvirt-guests , then using libvirtd > above. > > Also I have replace the system Qemu with the Qemu 2.6.50 which I have built > from upstream : > root@u202158:/opt/stack/kevin/libvirt# qemu-system-aarch64 --version > QEMU emulator version 2.6.50 (v2.6.0-1280-g6f1d2d1-dirty), > Copyright (c) 2003-2008 Fabrice Bellard > Using this XML in the attachment: > Then Run virsh command to create guest: > root@u202158:/opt/stack/kevin/libvirt/tools# ./virsh create > /opt/stack/f23.xml --console > error: Failed to create domain from /opt/stack/f23.xml > error: internal error: process exited while connecting to monitor: > 2016-06-27T12:45:23.807405Z qemu-system-aarch64: -drive > file=/var/lib/libvirt/qemu/nvram/f23_VARS.fd,if=pflash,format=raw,unit=1: > Could not open '/var/lib/libvirt/qemu/nvram/f23_VARS.fd': > Permission denied > > Here I met the permission problem and I'm not sure where is wrong. If I use > origin qemu-system-aarch64(installed by apt-get),I will not meet the > problem of permission..Kindly need your help, you will be really > appreciated,,, :D > $ls -l /usr/bin/qemu-system-aarch64 > -rwxr-xr-x 1 root root 26935520 Jun 27 10:56 /usr/bin/qemu-system-aarch64 > $ls -l /var/lib/libvirt/qemu/nvram/f23_VARS.fd > -rw------- 1 root root 67108864 Jun 20 07:27 > /var/lib/libvirt/qemu/nvram/f23_VARS.fd > > >
Depending on how you compiled libvirt, it may run qemu as the unprivileged qemu:qemu user. Perhaps that VM was created with the default compilation options to run qemu as root:root, and whatever you are trying to run it with now is using qemu:qemu - Cole
