[PATCH 4.9 35/39] x86/kaiser: Reenable PARAVIRT

From: Greg Kroah-Hartman
Date: Wed Jan 03 2018 - 15:15:25 EST


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.