From: Ramakrishna Saripalli <rsaripal@amd.com>
To: <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>,
Jonathan Corbet <corbet@lwn.net>
Cc: <bsd@redhat.com>, <rsaripal@amd.com>
Subject: [PATCH 4/4] x86/speculation: Add PSF mitigation kernel parameters
Date: Wed, 21 Apr 2021 04:01:17 -0500 [thread overview]
Message-ID: <20210421090117.22315-5-rsaripal@amd.com> (raw)
In-Reply-To: <20210421090117.22315-1-rsaripal@amd.com>
From: Ramakrishna Saripalli <rk.saripalli@amd.com>
PSF mitigation introduces a new kernel parameter called
predict_store_fwd.
Signed-off-by: Ramakrishna Saripalli<rk.saripalli@amd.com>
---
Documentation/admin-guide/kernel-parameters.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 04545725f187..58f6bd02385b 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3940,6 +3940,11 @@
Format: {"off"}
Disable Hardware Transactional Memory
+ predict_store_fwd [X86] This option controls PSF mitigation
+ off - Turns on PSF mitigation.
+ on - Turns off PSF mitigation.
+ default : on.
+
preempt= [KNL]
Select preemption mode if you have CONFIG_PREEMPT_DYNAMIC
none - Limited to cond_resched() calls
--
2.25.1
next prev parent reply other threads:[~2021-04-21 9:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 9:01 [PATCH 0/4] Introduce support for PSF mitigation Ramakrishna Saripalli
2021-04-21 9:01 ` [PATCH 1/4] x86/cpufeatures: Define feature bits to support mitigation of PSF Ramakrishna Saripalli
2021-04-21 9:01 ` [PATCH 2/4] x86/speculation: Introduce SPEC_CTRL_MSR bit for PSFD Ramakrishna Saripalli
2021-04-21 9:01 ` [PATCH 3/4] x86/speculation: Implement PSF mitigation support Ramakrishna Saripalli
2021-04-21 9:01 ` Ramakrishna Saripalli [this message]
2021-04-21 16:04 ` [PATCH 4/4] x86/speculation: Add PSF mitigation kernel parameters Randy Dunlap
2021-04-21 18:32 ` Bandan Das
2021-04-21 18:36 ` Saripalli, RK
2021-04-21 18:48 ` Borislav Petkov
2021-04-21 18:55 ` Saripalli, RK
2021-04-21 18:57 ` Borislav Petkov
2021-04-21 19:05 ` Saripalli, RK
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