tree 001872a240c443c98f7e3a7832e6bf9f8969b8d2
parent c504b9fce7ba7a2ff96f857d609c69e291553ef0
author Andi Kleen <ak@linux.intel.com> 1533679776 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1534349693 +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: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>