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SubjectRe: [patch V2 07/29] x86/exceptions: Make IST index zero based
On Fri, Apr 05, 2019 at 05:07:05PM +0200, Thomas Gleixner wrote:
> The defines for the exception stack (IST) array in the TSS are using the
> SDM convention IST1 - IST7. That causes all sorts of code to subtract 1 for
> array indices related to IST. That's confusing at best and does not provide
> any value.
> Make the indices zero based and fixup the usage sites. The only code which
> needs to adjust the 0 based index is the interrupt descriptor setup which
> needs to add 1 now.
> Signed-off-by: Thomas Gleixner <>
> ---

Reviewed-by: Sean Christopherson <>

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