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SubjectRe: [PATCH v2] x86/mm/kaiser: Disable global pages by default with KAISER
On Mon, 27 Nov 2017, Ingo Molnar wrote:
> * Thomas Gleixner <tglx@linutronix.de> wrote:
> > On Sun, 26 Nov 2017, Ingo Molnar wrote:
> > > * Disable global pages for anything using the default
> > > * __PAGE_KERNEL* macros.
> > > *
> > > * PGE will still be enabled and _PAGE_GLOBAL may still be used carefully
> > > * for a few selected kernel mappings which must be visible to userspace,
> > > * when KAISER is enabled, like the entry/exit code and data.
> > > */
> > > #ifdef CONFIG_KAISER
> > > #define __PAGE_KERNEL_GLOBAL 0
> > > #else
> > > #define __PAGE_KERNEL_GLOBAL _PAGE_GLOBAL
> > > #endif
> > >
> > > ... and I've added your Reviewed-by tag which I assume now applies?
> >
> > Ideally we replace the whole patch with the __supported_pte_mask one which
> > I posted as a delta patch.
>
> Yeah, so I squashed these two patches:
>
> 09d76fc407e0: x86/mm/kaiser: Disable global pages by default with KAISER
> bac79112ee4a: x86/mm/kaiser: Simplify disabling of global pages
>
> into a single patch, which results in the single patch below, with an updated
> changelog that reflects the cleanups. I kept Dave's authorship and credited you
> for the simplification.
>
> Note that the squashed commit had some whitespace noise which I skipped, further
> simplifying the patch.
>
> Is it OK this way? If yes then I'll reshuffle the tree with this variant.

Yes.

Thanks,

tglx

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