Re: [PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks

[Juergen Gross]

On 15.07.19 17:16, Andrew Cooper wrote:
> There is a lot of infrastructure for functionality which is used
> exclusively in __{save,restore}_processor_state() on the suspend/resume
> path.
>
> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
> lapic_{suspend,resume}().  Saving and restoring cr8 independently of the
> rest of the Local APIC state isn't a clever thing to be doing.
>
> Delete the suspend/resume cr8 handling, which shrinks the size of struct
> saved_context, and allows for the removal of both PVOPS.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Juergen Gross <jgross@xxxxxxxx>


Juergen