linux_dsm_epyc7002/arch/arm64
Catalin Marinas 3676f9ef54 arm64: Move PTE_PROT_NONE higher up
PTE_PROT_NONE means that a pte is present but does not have any
read/write attributes. However, setting the memory type like
pgprot_writecombine() is allowed and such bits overlap with
PTE_PROT_NONE. This causes mmap/munmap issues in drivers that change the
vma->vm_pg_prot on PROT_NONE mappings.

This patch reverts the PTE_FILE/PTE_PROT_NONE shift in commit
59911ca432 (ARM64: mm: Move PTE_PROT_NONE bit) and moves PTE_PROT_NONE
together with the other software bits.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Steve Capper <steve.capper@linaro.org>
Cc: <stable@vger.kernel.org> # 3.11+
2013-11-29 15:22:59 +00:00
..
boot arm64: dts: Reserve the memory used for secondary CPU release address 2013-11-25 16:44:04 +00:00
configs
include arm64: Move PTE_PROT_NONE higher up 2013-11-29 15:22:59 +00:00
kernel arm64: debug: make aarch32 bkpt checking endian clean 2013-11-28 18:01:29 +00:00
kvm
lib
mm
xen
Kconfig
Kconfig.debug
Makefile