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 réponses

galou00 Posted messages 662 Status Membre 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
Papy74
 
Simple, clear, and precise.
0
mia
 
Here it is, without beating around the bush, thank you ;)
0
sausteen
 
Same here, thank you!
0
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
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