On Fri, 14 May 2021 00:07:59 +1000, Michael Ellerman wrote:
> The entry flush mitigation can be enabled/disabled at runtime. When this
> happens it results in the kernel patching its own instructions to
> enable/disable the mitigation sequence.
>
> With strict kernel RWX enabled instruction
The entry flush mitigation can be enabled/disabled at runtime. When this
happens it results in the kernel patching its own instructions to
enable/disable the mitigation sequence.
With strict kernel RWX enabled instruction patching happens via a
secondary mapping of the kernel text, so that we
