tree 4d53c573148b0b99bf2e4e6167fc6f92b3acecdf
parent 4d3579f7f904cddf55264c427b746e1ac1a83d7c
author Andi Kleen <ak@linux.intel.com> 1533679776 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1534347453 +0200

x86/speculation/l1tf: Invert all not present mappings

commit f22cc87f6c1f771b57c407555cfefd811cdd9507 upstream.

For kernel mappings PAGE_PROTNONE is not necessarily set for a non present
mapping, but the inversion logic explicitely checks for !PRESENT and
PROT_NONE.

Remove the PROT_NONE check and make the inversion unconditional for all not
present mappings.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>