]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
arm64: add support for folded p4d page tables
authorMike Rapoport <rppt@linux.ibm.com>
Thu, 4 Jun 2020 23:46:23 +0000 (16:46 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 5 Jun 2020 02:06:21 +0000 (19:06 -0700)
commite9f6376858b9799148d07e58b72b681d4b8fa4c7
tree45235961d24c3fbfc71cd5bf0ca9b7b41c104df7
parent84e6ffb2c49c7901a9efb54b497d2eb84c3bef8c
arm64: add support for folded p4d page tables

Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.

[arnd@arndb.de: fix gcc-10 shift warning]
Link: http://lkml.kernel.org/r/20200429185657.4085975-1-arnd@arndb.de
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: James Morse <james.morse@arm.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Julien Thierry <julien.thierry.kdev@gmail.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200414153455.21744-4-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 files changed:
arch/arm64/include/asm/kvm_mmu.h
arch/arm64/include/asm/pgalloc.h
arch/arm64/include/asm/pgtable-types.h
arch/arm64/include/asm/pgtable.h
arch/arm64/include/asm/stage2_pgtable.h
arch/arm64/kernel/hibernate.c
arch/arm64/kvm/mmu.c
arch/arm64/mm/fault.c
arch/arm64/mm/hugetlbpage.c
arch/arm64/mm/kasan_init.c
arch/arm64/mm/mmu.c
arch/arm64/mm/pageattr.c