4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lin Yujun <linyujun809@xxxxxxxxxx>
commit 06cb31cc761823ef444ba4e1df11347342a6e745 upstream.
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@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220830123614.23007-1-linyujun809@xxxxxxxxxx
Signed-off-by: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/hw-vuln/spectre.rst | 1 +
1 file changed, 1 insertion(+)
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -625,6 +625,7 @@ 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.
