summaryrefslogtreecommitdiff
path: root/Documentation/admin-guide/hw-vuln
diff options
context:
space:
mode:
authorLin Yujun <linyujun809@huawei.com>2022-08-30 15:36:14 +0300
committerJonathan Corbet <corbet@lwn.net>2022-09-27 22:21:44 +0300
commit06cb31cc761823ef444ba4e1df11347342a6e745 (patch)
tree0874e9f44fd03ea52f9d361d4b03f5ce5a6fb568 /Documentation/admin-guide/hw-vuln
parent622d6f198737c26a47d892f29d054bf20df5a460 (diff)
downloadlinux-06cb31cc761823ef444ba4e1df11347342a6e745.tar.xz
Documentation/hw-vuln: Update spectre doc
commit 7c693f54c873691 ("x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS") adds the "ibrs " option in Documentation/admin-guide/kernel-parameters.txt but omits it to Documentation/admin-guide/hw-vuln/spectre.rst, add it. Signed-off-by: Lin Yujun <linyujun809@huawei.com> Link: https://lore.kernel.org/r/20220830123614.23007-1-linyujun809@huawei.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/admin-guide/hw-vuln')
-rw-r--r--Documentation/admin-guide/hw-vuln/spectre.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index 2ce2a38cdd55..c4dcdb3d0d45 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -613,6 +613,7 @@ kernel command line.
eibrs enhanced IBRS
eibrs,retpoline enhanced IBRS + Retpolines
eibrs,lfence enhanced IBRS + LFENCE
+ ibrs use IBRS to protect kernel
Not specifying this option is equivalent to
spectre_v2=auto.