x86/mm: Move the CR3 construction functions to tlbflush.h
authorDave Hansen <dave.hansen@linux.intel.com>
Mon, 4 Dec 2017 14:07:54 +0000 (15:07 +0100)
committerIngo Molnar <mingo@kernel.org>
Fri, 22 Dec 2017 19:13:03 +0000 (20:13 +0100)
commit50fb83a62cf472dc53ba23bd3f7bd6c1b2b3b53e
treea22a6fc2e7adf068e1795fe673a6f5b49d0d9435
parent3f67af51e56f291d7417d77c4f67cd774633c5e1
x86/mm: Move the CR3 construction functions to tlbflush.h

For flushing the TLB, the ASID which has been programmed into the hardware
must be known.  That differs from what is in 'cpu_tlbstate'.

Add functions to transform the 'cpu_tlbstate' values into to the one
programmed into the hardware (CR3).

It's not easy to include mmu_context.h into tlbflush.h, so just move the
CR3 building over to tlbflush.h.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Laight <David.Laight@aculab.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Eduardo Valentin <eduval@amazon.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: aliguori@amazon.com
Cc: daniel.gruss@iaik.tugraz.at
Cc: hughd@google.com
Cc: keescook@google.com
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/include/asm/mmu_context.h
arch/x86/include/asm/tlbflush.h
arch/x86/mm/tlb.c