4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Borislav Petkov <bp@xxxxxxx> Now that the required bits have been addressed, reenable PARAVIRT. Signed-off-by: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- security/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/security/Kconfig +++ b/security/Kconfig @@ -34,7 +34,7 @@ config SECURITY config KAISER bool "Remove the kernel mapping in user mode" default y - depends on X86_64 && SMP && !PARAVIRT + depends on X86_64 && SMP help This enforces a strict kernel and user space isolation, in order to close hardware side channels on kernel address information.