i'm using a really lightweight gentoo as a host, and I load multiple VM at the same times

if you need info about that, search for KVM VGA passthrough with VT-d

or Xen, whatever you like

oh, forgot to mention that, it's also really useful to tweak your drivers since you can access your PCI device directly too

without direct I/O (VT-d or AMD I/O VT), you can only use software acceleration and the perfomances are pretty poor, whatever your hardware

alright proffesseur, je ne suis pas comprehends

too much info

it's like teaching a 9 year old about quantum physics

and I fucked up that french

I just remembered

to keep it simple, without direct I/O technology, your VM software emulate a graphic card and the perfomances are shitty. Don't even expect to run something 15y old at decent FPS

with direct I/O, your VM software can access and use your hardware directly inside the guest. That makes you able to use you super uber graphic card in your VM

it's not that you have to dumb it down for me, it's just that I'm only about 1/2 awake rn

I appreciate it tho

lol

well, I don't know your computer system knowledge

and it might help some other people to understand a bit anyway, so I had to try 😄

reading that back, the only thing I don't know what it is is VT

I assume it's a kind of VM

but as I said, if you're actual knowledge for VM use is simply use VirtualBox or VMware GUI, don't even bother buying stuff that support this technology, you won't be able to use it

VT-d is a techology, it has to be supported directly by your CPU and your motherboard

it makes you able to assignate your devices to a VM

VT-d is intel proprietary, AMD has its counterpart called I/O Virtualisation Technology

I have a bunch of games that only run on Windows XP, I tried running them on MS's official XP VM and they didn't work. Do you think you would know why? would I need any of these technologies?

probably yes

your VM support only software acceleration, so shitty 3D at 3FPS at most

it's not that they didn't run fast enough, they didn't even boot up

I just got error messages

yup, no directx, opengl, etc

oh, that makes sense

since it's just a software "graphic card"

what did you use ? Virtualbox or something like that ?

like I said, ms's offical VM

I don't know if they still have it up, it was quite hard to find on their website

yeah, on which software tho ? VMware, Virtualbox, Parallels, Virtual PC, etc ?

oh, it was something made by microsoft directly ?

yes

not just a virtual disc with windows on it

okay okay

They made it available during the vista/7 period

well, you should be able to play them on linux with WINE though