x86/kaiser: Reenable PARAVIRT

Now that the required bits have been addressed, reenable
PARAVIRT.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 750fb627d764eb66430c36961b94ab0002694c02)
Orabug: 27333760
CVE: CVE-2017-5754
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Signed-off-by: Kirtikar Kashyap <kirtikar.kashyap@oracle.com>

diff --git a/security/Kconfig b/security/Kconfig
index 3d36fd094439ffbe73065d80acb0b4cbc499d500..10711540b82244f1e2a4bf2018c65ae5076b31b6 100644 (file)
--- 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.