At 01/19/2011 09:54 AM, Eric Blake Write: > On 01/18/2011 06:22 PM, Wen Congyang wrote: >> At 01/18/2011 11:16 PM, Eric Blake Write: >>> On 01/17/2011 10:39 PM, Wen Congyang wrote: >>>>> + cmd = virCommandNewArgList(qemu, >>>>> + "-device", "pci-assign,?", >>>>> + NULL); >>>> >>>> The qemu that I used does not support '-device pci-assign,?'... >>>> So, I can not start the guest with this patch. >>>> >>>> The qemu is cloned from here: >>>> http://git.qemu.org/git/qemu.git >>> >>> What do the following commands produce (assuming that both qemu and >>> qemu-kvm on your PATH are the binaries that you are testing with)? >> >> After builing qemu, I only have the qemy-system-x86_64 command > > That explains it. git.qemu.org/git/qemu.git is the upstream qemu > repository, and lacks kvm integration. As such, it lacks -device > pci-assign. > > To build qemu-kvm, you also need to track > git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git (which is heavily > based on the former qemu.git). Without kvm support, qemu will still be > able to emulate x86_64 platforms, but it's noticeably slower. The qemu in git.qemu.org/git/qemu.git has supported kvm. > >> >> # qemu-system-x86_64 --version >> QEMU emulator version 0.13.50, Copyright (c) 2003-2008 Fabrice Bellard > > Good - my reproduction of your issue (and my patch) was correct. > >> # qemu-system-x86_64 -device ? -device pci-assign,? -device virtio-blk-pci,? >> name "virtio-9p-pci", bus PCI > ... >> name "isa-debugcon", bus ISA >> virtio-blk-pci.class=hex32 >> virtio-blk-pci.drive=drive >> virtio-blk-pci.logical_block_size=uint16 >> virtio-blk-pci.physical_block_size=uint16 >> virtio-blk-pci.min_io_size=uint16 >> virtio-blk-pci.opt_io_size=uint32 >> virtio-blk-pci.bootindex=int32 >> virtio-blk-pci.discard_granularity=uint32 >> virtio-blk-pci.vectors=uint32 >> virtio-blk-pci.indirect_desc=on/off >> virtio-blk-pci.scsi=on/off > > And this, as desired, is a successful feature probe even though it lacks > pci-assign.* information. > > Sorry for getting your name wrong in my commit message. It does not matter. > -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list