VM和VPC是大家熟知的虛擬機軟件了。有人喜歡VM，有人喜歡VPC，蘿卜白菜，各有所愛。 VM優點：支持USB設備；虛擬網卡眾多，可以模擬多子網環境；顯卡驅動要比VPC好，VPC只支持1280*800分辨率以下，我的1366*768無法全屏；VM自帶錄像功能，可以做視頻教學；VM自帶snapshot功能，誤操作時還可以回滾。 VM缺點：跑Windows系統確實不如VPC占資源小，速度快。 VPC優點：跑Windows系統確占資源小，速度快，這恐怕是唯一的亮點了。 VPC缺點：顯卡驅動在1366*768的分辨率下無法完整的全屏，尤其是對linux的圖形化支持更是花屏嚴重；網卡僅僅包含宿主機的物理網卡和虛擬網卡，有時候做多子網環境還得利用loopback網卡，藍牙網絡，無線網卡等。 所以我一般都是VM和VPC結合使用，做cluster實驗時偶爾還用到VS2005。在較早的機器上做實驗時，因為機器硬件不支持虛擬化，所以不存在VM和VPC沖突的問題，當我新買了一臺I5的本本后，發現VM總是和VPC沖突，并且如果同時打開多個VPC機器，還可能導致物理機藍屏。

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在網上搜索過相關的問題，大部分的矛頭都指向VPC中的一個選項：

但是我將虛擬化功能Disable之后打開VPC還是會讓正在運行的VM出現中斷。

??????? 后來，無意中用UltraEdit（記事本也可）打開vmc文件時，仔細看了下里面的代碼，代碼并不復雜。

<?xml?version="1.0"?encoding="UTF-16"?> ?

<!--?Microsoft?Virtual?Machine?Options?and?Settings?--> ?

<preferences> ?

????<version?type="string">2.0</version> ?

????<alerts> ?

????????<notifications> ?

????????????<no_boot_disk?type="boolean">true</no_boot_disk> ?

????????</notifications> ?

????</alerts> ?

????<hardware> ?

????????<memory> ?

????????????<ram_size?type="integer">512</ram_size> ?

????????</memory> ?

????????<pci_bus> ?

????????????<ethernet_adapter> ?

????????????????<controller_count?type="integer">1</controller_count> ?

????????????????<ethernet_controller?id="0"> ?

????????????????????<virtual_network> ?

????????????????????????<id?type="bytes">0EB745BD4AB811E081C895FBFEB63705</id> ?

????????????????????????<name?type="string">Intel(R)?WiFi?Link?1000?BGN</name> ?

????????????????????</virtual_network> ?

????????????????????<ethernet_card_address?type="bytes">0003FF40EB61</ethernet_card_address> ?

????????????????</ethernet_controller> ?

????????????</ethernet_adapter> ?

????????????<video_adapter> ?

????????????????<vram_size?type="integer">8</vram_size> ?

????????????</video_adapter> ?

????????????<ide_adapter> ?

????????????????<ide_controller?id="1"> ?

????????????????????<location?id="0"> ?

????????????????????????<drive_type?type="integer">2</drive_type> ?

????????????????????????<pathname> ?

????????????????????????????<absolute?type="string"?/> ?

????????????????????????????<relative?type="string"?/> ?

????????????????????????</pathname> ?

????????????????????</location> ?

????????????????</ide_controller> ?

????????????????<ide_controller?id="0"> ?

????????????????????<location?id="0"> ?

????????????????????????<drive_type?type="integer">1</drive_type> ?

????????????????????????<pathname> ?

????????????????????????????<absolute?type="string">G:\VPC2007\Lab-CHS\WINXP-PRO-SP3\WINXP-PRO-CHS-SP3.vhd</absolute> ?

????????????????????????????<relative?type="string">.\WINXP-PRO-CHS-SP3.vhd</relative> ?

????????????????????????</pathname> ?

????????????????????????<undo_pathname> ?

????????????????????????????<absolute?type="string">G:\VPC2007\Lab-CHS\WINXP-PRO-SP3\VirtualPCUndo_WINXP-PRO-CHS-SP3_0_0_0_10013408212011.vud</absolute> ?

????????????????????????????<relative?type="string">.\VirtualPCUndo_WINXP-PRO-CHS-SP3_0_0_0_10013408212011.vud</relative> ?

????????????????????????</undo_pathname> ?

????????????????????</location> ?

????????????????</ide_controller> ?

????????????</ide_adapter> ?

????????</pci_bus> ?

????????<standard> ?

????????????<name?type="string">Virtual?PC?2007</name> ?

????????????<version?type="string">0001.0000.0000</version> ?

????????</standard> ?

????????<super_io> ?

????????????<floppy?id="0"> ?

????????????????<pathname> ?

????????????????????<absolute?type="string"?/> ?

????????????????????<relative?type="string"?/> ?

????????????????</pathname> ?

????????????</floppy> ?

????????????<floppy> ?

????????????????<auto_detect?type="boolean">true</auto_detect> ?

????????????</floppy> ?

????????????<parallel_port> ?

????????????????<port_shared?type="boolean">false</port_shared> ?

????????????????<port_type?type="integer">0</port_type> ?

????????????</parallel_port> ?

????????????<serial_port> ?

????????????????<connect_immediately?type="boolean">false</connect_immediately> ?

????????????</serial_port> ?

????????</super_io> ?

????????<bios> ?

????????????<base_board> ?

????????????????<serial_number?type="string">5284-0211-5760-6543-5348-2456-30</serial_number> ?

????????????</base_board> ?

????????????<bios_guid?type="string">{D30B7F05-B995-44E6-A333-64507F56B2AB}</bios_guid> ?

????????????<bios_serial_number?type="string">5284-0211-5760-6543-5348-2456-30</bios_serial_number> ?

????????????<chassis> ?

????????????????<asset_tag?type="string">5284-0211-5760-6543-5348-2456-30</asset_tag> ?

????????????????<serial_number?type="string">5284-0211-5760-6543-5348-2456-30</serial_number> ?

????????????</chassis> ?

????????????<cmos?type="bytes">00004000F020378002FFFF2F00FF3F1000003FFF3F1000003F31004C0707070707E9FFFF208580FF01000000200C01800CFC00000000000000000000000000901A32E252580050E999E62401002784004A2080240000000000085AACFE1032547698BAE400000000000003000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000</cmos> ?

????????????<time_bytes?type="bytes">11003900170000210811</time_bytes> ?

????????</bios> ?

????</hardware> ?

????<integration> ?

????????<microsoft> ?

????????????<mouse> ?

????????????????<allow?type="boolean">true</allow> ?

????????????</mouse> ?

????????????<video> ?

????????????????<user_selected> ?

????????????????????<depth?type="integer">16</depth> ?

????????????????????<height?type="integer">480</height> ?

????????????????????<width?type="integer">640</width> ?

????????????????</user_selected> ?

????????????</video> ?

????????</microsoft> ?

????</integration> ?

????<properties> ?

????????<creator> ?

????????????<build?type="string">6.0.156.0</build> ?

????????????<name?type="string">Microsoft?Virtual?PC?2007</name> ?

????????</creator> ?

????????<modifier> ?

????????????<build?type="string">6.0.192.0</build> ?

????????????<name?type="string">Microsoft?Virtual?PC?2007</name> ?

????????</modifier> ?

????</properties> ?

????<settings> ?

????????<shutdown> ?

????????????<prompt?type="boolean">true</prompt> ?

????????????<quit> ?

????????????????<action?type="integer">4</action> ?

????????????????<was_running?type="boolean">true</was_running> ?

????????????</quit> ?

????????????<save> ?

????????????????<enable?type="boolean">true</enable> ?

????????????</save> ?

????????????<shutdown> ?

????????????????<enable?type="boolean">true</enable> ?

????????????</shutdown> ?

????????????<turn_off> ?

????????????????<enable?type="boolean">true</enable> ?

????????????</turn_off> ?

????????????<last_shutdown> ?

????????????????<choice?type="integer">3</choice> ?

????????????????<commit?type="boolean">false</commit> ?

????????????</last_shutdown> ?

????????</shutdown> ?

????????<sound> ?

????????????<sound_adapter> ?

????????????????<enable?type="boolean">true</enable> ?

????????????</sound_adapter> ?

????????</sound> ?

????????<startup> ?

????????????<automatic> ?

????????????????<type?type="integer">2</type> ?

????????????</automatic> ?

????????</startup> ?

????????<undo_drives> ?

????????????<enabled?type="boolean">true</enabled> ?

????????????<purposely_kept?type="boolean">false</purposely_kept> ?

????????????<use_default?type="boolean">true</use_default> ?

????????</undo_drives> ?

????????<video> ?

????????????<disable_resize?type="boolean">false</disable_resize> ?

????????????<full_screen?type="boolean">false</full_screen> ?

????????????<mode> ?

????????????????<full_screen> ?

????????????????????<startup?type="boolean">false</startup> ?

????????????????</full_screen> ?

????????????</mode> ?

????????????<resolutions> ?

????????????????<standard_only?type="boolean">false</standard_only> ?

????????????</resolutions> ?

????????????<height?type="integer">600</height> ?

????????????<left_position?type="integer">151</left_position> ?

????????????<max_height?type="integer">600</max_height> ?

????????????<max_width?type="integer">800</max_width> ?

????????????<top_position?type="integer">62</top_position> ?

????????????<width?type="integer">800</width> ?

????????</video> ?

????????<guest_os?type="integer">3</guest_os> ?

????</settings> ?

????<virtual_machines> ?

????????<hw_assist> ?

????????????<enable_hw_assist?type="boolean">true</enable_hw_assist> ?

????????</hw_assist> ?

????????<allow_packet_filtering?type="boolean">false</allow_packet_filtering> ?

????????<allow_promiscuous_mode?type="boolean">false</allow_promiscuous_mode> ?

????</virtual_machines> ?

</preferences>?

171.? <enable_hw_assist type="boolean">true</enable_hw_assist>

大家看上面170-172行代碼，原來這臺虛擬機一啟動就默認打開虛擬化開關，即使關閉了控制臺的虛擬化開關也是沒用的。將此項設置為false后，VPC再也沒有和VM沖突了。 <enable_hw_assist type="boolean">false</enable_hw_assist> 根本原因是宿主機（物理機）不像WIN2008安裝有hypervisor去調控虛擬化的硬件資源，所以如果虛擬機打開虛擬化開關會造成硬件資源爭奪的情況，嚴重時造成物理機藍屏。

至此VM與VPC沖突問題從根本上得到解決。

轉載于:https://blog.51cto.com/yangye/645652

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