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PAE/NX ?

Nolan88 -  
 sausteen -
Hello,
I just wanted to know

What is PAE/NX?
And VT-x/AMD-V I can't find anything about it and it seems quite strange to me
Actually, I simply installed VirtualBox and installed Linux Opensuse11 and I need to enable PAE/NX? and VT-x/AMD-V but I really don’t know what it actually does and it’s just out of curiosity.

Thank you in advance and I wish you a good day and/or good evening
Configuration: Windows Vista Internet Explorer 7.0

3 answers

  1.
    galou00 Posted messages 662 Status Member 80
     
    I’m bringing up the subject again, but better late than never...

    Intel VT and AMD-V are virtualization technologies. They were developed by Intel and AMD to create a semblance of paravirtualization with unmodified (and unmodifiable) systems like Windows, for example.

    As a reminder, paravirtualization allows virtualized systems to communicate directly with the hypervisor without going through the driver layer that solutions like VMware Workstation or VirtualBox require.

    The most well-known paravirtualizers are KVM and Xen (from Citrix).

    For those in the know, Intel-VT and AMD-V simulate the installation of the hypervisor on a "ring -1" to make way for the guest OS on ring 0. Windows, which can only run on ring 0, sees nothing amiss.

    ...and the PAE/NX option allows for more than 4GB of RAM to be allocated to a 32-bit virtualized OS on a machine with more RAM.
    53
    1. Papy74
       
      Simple, clear, and precise.
      0
    2. mia
       
      Here it is, without beating around the bush, thank you ;)
      0
    3. sausteen
       
      Same here, thank you!
      0
  2. kiki
     
    Hello,

    Intel-VT and AMD-V are hardware features that support virtualization. They are essential for properly virtualizing a Windows operating system. This can be found on recent processors with 3 or 4 cores.

    Best regards,
    1
  3. Nolan88
     
    Thank you for replying to me.
    I thought it was something completely different but thank you, it helps me a bit ^^

    Have a good evening and goodbye!
    1