lkml.org 
[lkml]   [2018]   [Jan]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/7] x86/feature: Detect the x86 feature to control Speculation
On Fri, 5 Jan 2018, Andrea Arcangeli wrote:
> On Fri, Jan 05, 2018 at 02:09:43PM +0100, Thomas Gleixner wrote:
> Now about the late microcode my preference is not for static_cpu_has
> and forcing the early microcode, but my long term preference is to
> start with this/boot_cpu_has() and then turn static_cpu_has in a true
> static key so that setup_force_cpu_cap shall also flip the static key
> for all static_cpu_has(X86_FEATURE_IBPB_SUPPORT) also if run any time
> after boot and not only if run before the static_cpu_has alternative
> is patched in.

Fair enough. We can avoid the static_cpu_has() to begin with and fix it
later.

Thanks,

tglx

\
 
 \ /
  Last update: 2018-01-05 14:52    [W:0.086 / U:7.720 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site