hi,
    I had make virtio_console work OK on my environment(armv8),
    But I meet two question when I add virtio net with virtio_console meanwhile.

Question1:
    "add_io_port_range@io.c:111 Requested ioport range 0x6200-0x6600" for 
VIRTIO CON overlaps with existing range 0x6200-0x6600 for VIRTIO PCI NET

    According to the print above:
    common_make_virtio_con(virtio_emul_vm, vm->pci, vm->io_port, 
VIRTIO_IOPORT_START, VIRTIO_IOPORT_SIZE,
                                        VIRTIO_INTERRUPT_PIN, 
VIRTIO_CON_PLAT_INTERRUPT_LINE, backend);
    common_make_virtio_net(virtio_emul_vm, vm->pci, vm->io_port, 
VIRTIO_IOPORT_START + 0x1000, VIRTIO_IOPORT_SIZE,
                                        VIRTIO_INTERRUPT_PIN, 
VIRTIO_NET_PLAT_INTERRUPT_LINE, backend);
    a、above two function,I found they use the same VIRTIO_IOPORT_START, I 
modify VIRTIO_IOPORT_START  of common_make_virtio_net to (VIRTIO_IOPORT_START   
+ 0x1000), is it OK?
    b、I also found(VIRTIO_CON_PLAT_INTERRUPT_LINE  == 
VIRTIO_NET_PLAT_INTERRUPT_LINE),is that OK? Whether it should be make interrupt 
line different ?

Question2:
    "_utspace_split_alloc@split.c:272 Failed to find any untyped capable of 
creating an object at address 0xc0001000
    Failed to find device cap for 0xc0001000"

     According to the print above:
     a、my PCI region define as below:
      #define PCI_CFG_REGION_ADDR 0xC1000000
      #define PCI_IO_REGION_ADDR 0xC0000000
        #define PCI_CFG_REGION_SIZE 0x1000000
        #define PCI_IO_REGION_SIZE 0x1000
               #define PCI_CFG_BAR_MASK 0xFFFFFFFF
         I found 'virtio_net_init' and 'virtio_console_init' will call the same 
function 'install_virtio_vpci_device',
         net and console will have the same PCI_IO_REGION_ADDR ? is it OK?
    b、If I want to support two or muti virtio device, which should I add  a new 
macro define for virtio_net in a? for example add PCI_IO_REGION_ADDR for net or 
add PCI_CFG_REGION_ADDR ?
c、Can you give me some list file to change for support for support net and 
console meanwhile?
                                  Thank you very much.

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