[Devel] [PATCH hci-8.1 v6 2/5] x86/ve: enable CPUID faulting at once when the current task enters a VE

[Vasileios Almpanis]

> ve_setup_task() only sets TIF_CPUID_OVERRIDE. The MSR follows the flag
> in __switch_to_xtra(), so a task that enters a VE through unshare() or
> setns() keeps executing CPUID natively until it is scheduled out for the
> first time and sees the host values instead of the override table.
> 
> Add set_cpuid_override(), which sets the flag and, like disable_cpuid(),
> flips the CPU state synchronously when the task is the current one.
> Tasks set up through clone() are not running yet and are still handled
> at their first switch-in.
> 
> https://virtuozzo.atlassian.net/browse/VSTOR-148843
> 
> Feature: x86: cpu pools (cpuid override)
NIT: Fixes tag? Should be the same as patch 4 no?

-- 
Vasileios Almpanis <vasileios.almpanis at virtuozzo.com>