Re: [PATCH v4 0/10] x86/xsaves: Fix XSAVES known issues

[Andy Lutomirski]

On Fri, Apr 29, 2016 at 1:07 PM, Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx> wrote:
> On Fri, Apr 29, 2016 at 01:03:43PM -0700, Dave Hansen wrote:
>> That's not feasible.  Think of dynamic libraries or just-in-time
>> compilers.  What instruction set does /usr/bin/java use, for instance? :)
>
> The java argument is true. In that case or when the bitmask is missing, we can allocate for all supported features.
>

I actually want to see us moving in the direction of unconditionally
allocating everything on process startup.  If we can stop using CR0.TS
entirely, I think everything will be better.

--Andy