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  3. Why Intel Virtualization sucks today

Why Intel Virtualization sucks today

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  • 0 0x3c0

    I know the OS disagrees with it because the BIOS tells me that virtualization is enabled, while every program I know of tells me that virtualization isn't present

    OSDev :)

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    L Offline
    Lost User
    wrote on last edited by
    #9

    Normally a program would use CPUID for that, the OS would have nothing to do with it

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      harold aptroot wrote:

      Attempt at proof: Intel-VT is much newer than XP, so XP can not have explicit support for it, but it works anyway.

      But can't the OS have new drivers? I've run Windows Update, and it's not picked up anything.

      harold aptroot wrote:

      So I blame your BIOS (have you updated it?)

      No, but the option is in there, and it's switched on. The OS just disagrees with it.

      OSDev :)

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #10

      VT-x does not require any drivers, nor do they exist, and I don't run Windows Update but VirtualBox can use VT-x anyway

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        I decided to go out and buy a new processor a few days ago, and went for the Core 2 Duo E7600. I was assured, and continue to be assured by the official processor specifications and my BIOS that I've got a processor capable of virtualization. It seems that somehow, I've managed to buy a processor which has my BIOS and OS disagreeing. According to the MS tool, Intel tool, Everest and CPU-Z, I haven't got virtualization. So far, I'm getting a little irritated. I paid about £100 for the processor, and the virtualization features were a major feature when I bought it. Does anybody know how I can make the OS agree with me?

        OSDev :)

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #11

        Flash your BIOS if there's a newer version available and update your motherboard drivers. Just 'cause the BIOS says it's there and on doesn't mean it adheres to up-to-date standards. Cheers, Drew.

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        • L Lost User

          Normally a program would use CPUID for that, the OS would have nothing to do with it

          0 Offline
          0 Offline
          0x3c0
          wrote on last edited by
          #12

          That's what confuses me. I'm assuming that it's a BIOS glitch, but I'm not sure.

          OSDev :)

          R 1 Reply Last reply
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          • L Lost User

            Flash your BIOS if there's a newer version available and update your motherboard drivers. Just 'cause the BIOS says it's there and on doesn't mean it adheres to up-to-date standards. Cheers, Drew.

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            0 Offline
            0x3c0
            wrote on last edited by
            #13

            Thanks, I'm about to try that. I think I've got an interesting few days ahead of me.

            OSDev :)

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            • 0 0x3c0

              That's what confuses me. I'm assuming that it's a BIOS glitch, but I'm not sure.

              OSDev :)

              R Offline
              R Offline
              Rob Graham
              wrote on last edited by
              #14

              Have you gone into device manager and had it scan for new hardware (expand the computer node and see if it is even the correct class of device, and see if it needs it's driver sw updated)? I don't think XP will automatically detect the chip change...

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              • R Rob Graham

                Have you gone into device manager and had it scan for new hardware (expand the computer node and see if it is even the correct class of device, and see if it needs it's driver sw updated)? I don't think XP will automatically detect the chip change...

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                0 Offline
                0x3c0
                wrote on last edited by
                #15

                I have. Windows 7 automatically detected the new processor, and everything's matching up to the real hardware, apart from the absence of virtualization.

                OSDev :)

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                • 0 0x3c0

                  I decided to go out and buy a new processor a few days ago, and went for the Core 2 Duo E7600. I was assured, and continue to be assured by the official processor specifications and my BIOS that I've got a processor capable of virtualization. It seems that somehow, I've managed to buy a processor which has my BIOS and OS disagreeing. According to the MS tool, Intel tool, Everest and CPU-Z, I haven't got virtualization. So far, I'm getting a little irritated. I paid about £100 for the processor, and the virtualization features were a major feature when I bought it. Does anybody know how I can make the OS agree with me?

                  OSDev :)

                  T Offline
                  T Offline
                  TW Burger
                  wrote on last edited by
                  #16

                  The CPU, chipset (motherboard), and BIOS all have to support VT. The OS does not matter as long as the VMM will run in the host OS. According to: Intel® Core™2 Duo Processor E7600 "Intel® Virtualization Technology requires a computer system with a processor, chipset, BIOS, virtual machine monitor (VMM) and for some uses, certain platform software, enabled for it. Functionality, performance or other benefit will vary depending on hardware and software configurations." I have written several articles on the subject but the current marketing and specific technical information seems a little thin. I have had queries from readers about this too and I am trying to get some more information from Intel.

                  TW Burger

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                  • 0 0x3c0

                    Thanks, I'm about to try that. I think I've got an interesting few days ahead of me.

                    OSDev :)

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                    P Offline
                    peterchen
                    wrote on last edited by
                    #17

                    what Drew said.

                    Personally, I love the idea that Raymond spends his nights posting bad regexs to mailing lists under the pseudonym of Jane Smith. He'd be like a super hero, only more nerdy and less useful. [Trevel]
                    | FoldWithUs! | sighist | µLaunch - program launcher for server core and hyper-v server

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                    • L Lost User

                      Flash your BIOS if there's a newer version available and update your motherboard drivers. Just 'cause the BIOS says it's there and on doesn't mean it adheres to up-to-date standards. Cheers, Drew.

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                      0 Offline
                      0x3c0
                      wrote on last edited by
                      #18

                      Thanks for the tip. It's working now; I can run Virtual PC. :)

                      OSDev :)

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