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Message-Id: <1656033648-84181-1-git-send-email-liusong@linux.alibaba.com> Date: Fri, 24 Jun 2022 09:20:48 +0800 From: Liu Song <liusong@...ux.alibaba.com> To: corbet@....net, will@...nel.org Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] arm64: correct the effect of mitigations off on kpti From: Liu Song <liusong@...ux.alibaba.com> If KASLR is enabled, then kpti will be forced to be enabled even if mitigations off, so we need to adjust the description of this parameter. Signed-off-by: Liu Song <liusong@...ux.alibaba.com> --- Documentation/admin-guide/kernel-parameters.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 8090130..5b9e7f3 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3162,7 +3162,7 @@ improves system performance, but it may also expose users to several CPU vulnerabilities. Equivalent to: nopti [X86,PPC] - kpti=0 [ARM64] + if nokaslr then kpti=0 [ARM64] nospectre_v1 [X86,PPC] nobp=0 [S390] nospectre_v2 [X86,PPC,S390,ARM64] -- 1.8.3.1
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