x86: Add a comment about the "magic" behind shadow sti before mwait

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Add a note to make sure we never miss and break the requirements behind
it.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lkml.kernel.org/r/20231115151325.6262-2-frederic@kernel.org

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Frederic Weisbecker 2023-11-15 10:13:22 -05:00 • committed by Peter Zijlstra

parent 2cc14f52ae

commit 7d09a052a3

1 changed files with 9 additions and 0 deletions

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arch/x86/include/asm/mwait.h

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