Re: Updated version of RD/WR FS/GS BASE patchkit

From: Andi Kleen
Date: Mon Mar 21 2016 - 19:02:56 EST


> Maybe. Are there better options? Could we, for example, actually try
> to preserve the state if this happens?

We probably could, at the cost of making the context switch a bit
more expensive.

> Would it be worth it?

I doubt it.

I expect once WR*BASE is widely used noone will bother with selectors
for 64bit programs anymore.

-Andi