Re: [PATCH v3] x86: use a read-only IDT alias on all CPUs

[H. Peter Anvin]

Kees posted that one too.

Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

>Ingo Molnar <mingo@xxxxxxxxxx> writes:
>>
>> This looks very nice to me now. Peter, any objections?
>
>it seems pointless without randomized main kernel text location,
>because
>the IDT will be still at a known per kernel fixed writable location in
>the direct mapping.
>
>As long as such randomization is not there it just wastes a TLB entry.
>
>-Andi

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