Clarify documentation regarding Intel chipset for VT-d

[egberts]

How to file a helpful issue

Qubes OS release (if applicable)

website: https://github.com/QubesOS/qubes-doc/blob/master/user/hardware/system-requirements.md

I have ascertained that my Dell 790 has VT-d (via i7-2450), but its corresponding Intel Q65 LPC chipset does NOT support VT-d.

Interestingly enough, 4.0 works fine (but slugglishly).

The last line of the document says:

"You can check whether an Intel processor has VT-x and VT-d on ark.intel.com."

I suggest adding "... and Intel chipset for VT-d ..."

Brief summary

[andrewdavidwong]

In case you (or any others reading this) are not already aware, the documentation is a community effort, and everyone is welcome to contribute. (That's how things like this get updated!) So, if you'd like to get involved with the project, this is a great way to do it. You can read more about how to submit documentation changes here:

https://www.qubes-os.org/doc/doc-guidelines/