Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 15 Jul 2019 07:26:25 -0700 | Subject | Re: [PATCH] x86/paravirt: Drop {read,write}_cr8() hooks |
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On Mon, Jul 15, 2019 at 6:23 AM Juergen Gross <jgross@suse.com> wrote: > > On 15.07.19 15:00, 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 > > independently by lapic_{suspend,resume}(). > > Aren't those called only with CONFIG_PM set? >
Unless I'm missing something, we only build any of the restore code (including the write_cr8() call) if CONFIG_PM_SLEEP is set, and that selects CONFIG_PM, so we should be fine, I think.
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