On Fri, 5 Apr 2019, Josh Poimboeuf wrote:
> On Fri, Apr 05, 2019 at 05:07:15PM +0200, Thomas Gleixner wrote:
> > +/*
> > + * The exception stack ordering in [cea_]exception_stacks
> > + */
> > +enum exception_stack_ordering {
> > + ISTACK_DF,
> > + ISTACK_NMI,
> > + ISTACK_DB,
> > + ISTACK
On Fri, Apr 05, 2019 at 05:07:15PM +0200, Thomas Gleixner wrote:
> +/*
> + * The exception stack ordering in [cea_]exception_stacks
> + */
> +enum exception_stack_ordering {
> + ISTACK_DF,
> + ISTACK_NMI,
> + ISTACK_DB,
> + ISTACK_MCE,
> + N_EXCEPTION_STACKS
> +};
While clever,
The entry order of the TSS.IST array and the order of the stack
storage/mapping are not required to be the same.
With the upcoming split of the debug stack this is going to fall apart as
the number of TSS.IST array entries stays the same while the actual stacks
are increasing.
Make them separate
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