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Documentation/hw-vuln: Update spectre doc
commit 7c693f54c8
("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>
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@ -613,6 +613,7 @@ kernel command line.
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eibrs enhanced IBRS
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eibrs enhanced IBRS
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eibrs,retpoline enhanced IBRS + Retpolines
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eibrs,retpoline enhanced IBRS + Retpolines
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eibrs,lfence enhanced IBRS + LFENCE
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eibrs,lfence enhanced IBRS + LFENCE
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ibrs use IBRS to protect kernel
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Not specifying this option is equivalent to
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Not specifying this option is equivalent to
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spectre_v2=auto.
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spectre_v2=auto.
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