diff options
| author | Will Deacon <will.deacon@arm.com> | 2017-08-10 12:56:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2018-01-06 11:09:28 +0100 |
| commit | 44f905b3a22fd7030bd5dc9756ffa7e74a0cfb44 (patch) | |
| tree | 35b144044f4a824cda09323c3185849d01ad63ec /include/linux/debugobjects.h | |
| parent | 7f436e6b4ec682845d0842b7e1fb2546c40fe740 (diff) | |
FROMLIST: arm64: mm: Use non-global mappings for kernel space
In preparation for unmapping the kernel whilst running in userspace,
make the kernel mappings non-global so we can avoid expensive TLB
invalidation on kernel exit to userspace.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Tested-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
commit e046eb0c9bf26d94be9e4592c00c7a78b0fa9bfd)
Change-Id: If53d6db042f8fefff3ecf8a7658291e1f1ac659f
[ghackmann@google.com: apply pgtable-prot.h changes to pgtable.h instead]
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'include/linux/debugobjects.h')
0 files changed, 0 insertions, 0 deletions