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(parent: 3645eb7) | patch
x86/cpu: Add comment clarifying CRn pinning
authorPeter Zijlstra <peterz@infradead.org>
Fri, 20 Mar 2026 09:25:21 +0000 (10:25 +0100)
committerBorislav Petkov (AMD) <bp@alien8.de>
Mon, 23 Mar 2026 13:25:53 +0000 (14:25 +0100)
commita3e93cac25316aad03bf561e3c205f4ca0b8f452
tree711a67cfa4c8d5aeddd45906a4682c0f91de56dbtree | snapshot
parent3645eb7e3915990a149460c151a00894cb586253commit | diff
x86/cpu: Add comment clarifying CRn pinning

To avoid future confusion on the purpose and design of the CRn pinning code.

Also note that if the attacker controls page-tables, the CRn bits lose much of
the attraction anyway.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260320092521.GG3739106@noisy.programming.kicks-ass.net
arch/x86/kernel/cpu/common.c diff | blob | blame | history
A mirror of Linus' kernel repository