KVM 虚拟机上内核配置问题

taohong

没配置的硬件（红色第一部分），自动支持了（红色第二部分），为什么？

内核硬件配置

    Processor type and features  --->

Paravirtualized guest support  --->PARAVIRT_GUEST 半虚拟化客户支持

   Xen guest support

   VMI Guest support (DEPRECATED)

   KVM paravirtualized clock KVM_CLOCK

   KVM Guest support KVM_GUEST

     Paravirtualization layer for spinlocks

    Bus options (PCI etc.)  --->
   

PCI support PCI

Networking support  --->NET
    Device Drivers  --->

   

Block devices  --->BLK_DEV
        <*>   Loopback device supportBLK_DEV_LOOP回送设备支持
        <*>   Xen virtual block device support
        <*>   Virtio block driver (EXPERIMENTAL)VIRTIO_BLK KVM虚拟块设备驱动

这部分没选！
    < > Serial ATA and Parallel ATA drivers  --->ATA
         [ ]   ATA SFF support ATA_SFF
         [ ]     ATA BMDMA support ATA_BMDMA
        < >       Intel ESB, ICH, PIIX3, PIIX4 PATA/SATA support ATA_PIIX  QEMU虚拟机PCI总线


     

Network device support  ---> NETDEVICES
        <*>   Virtio network driver (EXPERIMENTAL)  VIRTIO_NET  KVM虚拟网卡驱动

Virtualization  --->VIRTUALIZATION 基于内核的虚拟机(KVM )支持
    <*>   PCI driver for virtio devices (EXPERIMENTAL) VIRTIO_PCI  KVM虚拟设备的PCI 驱动
    <*>   Virtio balloon driver (EXPERIMENTAL) VIRTIO_BALLOON  KVM气泡驱动,这个驱动支持增加和减少KVM客户机的内存


运行时：
(i686:1) /usr # lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
在虚拟机里凭空增加这些PCI卡
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
00:04.0 SCSI storage controller: Red Hat, Inc Virtio block device


请参见我的日志：http://user.qzone.qq.com/378235903/blog/1289553749