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ivshmem pci 驱动中的地址应为 64 位

您好，在使用您的 ivshmem 驱动时发生问题：

[  110.400099] ivpci 0000:00:04.0: [IVPCI] device 237:0, revision: 1
[  110.400102] ivpci 0000:00:04.0: [IVPCI] BAR0: 0xc1031000, 256
[  110.400105] ivpci 0000:00:04.0: [IVPCI] BAR1: 0x0, 0
[  110.400107] ivpci 0000:00:04.0: [IVPCI] BAR2: 0x0, 16777216
[  110.400134] ------------[ cut here ]------------
[  110.400136] ioremap on RAM at 0x0000000000000000 - 0x0000000000ffffff

可以注意到 ivpci_private 中如下成员只有 32 位

    unsigned int        bar0_addr;
    unsigned int        bar0_len;
    unsigned int        bar1_addr;
    unsigned int        bar1_len;
    unsigned int        bar2_addr;
    unsigned int        bar2_len;

在改成 unsigned long 与并修改相应 printk 格式后可以正常工作

[  171.841741] [IVPCI] module loading
[  171.841790] [IVPCI] major: 237, minor: 0
[  171.841832] ivpci 0000:00:04.0: [IVPCI] probing for device: 0000:00:04.0
[  171.841962] ivpci 0000:00:04.0: [IVPCI] device 237:0, revision: 1
[  171.841965] ivpci 0000:00:04.0: [IVPCI] BAR0: 0xc1031000, 256
[  171.841968] ivpci 0000:00:04.0: [IVPCI] BAR1: 0x0, 0
[  171.841970] ivpci 0000:00:04.0: [IVPCI] BAR2: 0x800000000, 16777216
[  171.841992] ivpci 0000:00:04.0: [IVPCI] BAR2 map: 0000000079ecba09
[  171.842202] ivpci 0000:00:04.0: [IVPCI] device ivposition: 0, MSI-X: no
[  171.842205] ivpci 0000:00:04.0: [IVPCI] device probed: 0000:00:04.0
[  171.842260] [IVPCI] module loaded

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