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| author | Will Deacon <will.deacon@arm.com> | 2017-08-10 13:58:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2018-01-06 11:09:28 +0100 |
| commit | d99c809e7f5d0e769d81a7648a664655c9b6d42d (patch) | |
| tree | beda0ab155a2d0a1af75f4bbb57d6d3d83dd16c6 /include/linux/debugobjects.h | |
| parent | 76546093d4300ed5ba9a0415731e23d13c01a0c8 (diff) | |
FROMLIST: arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN
With the ASID now installed in TTBR1, we can re-enable ARM64_SW_TTBR0_PAN
by ensuring that we switch to a reserved ASID of zero when disabling
user access and restore the active user ASID on the uaccess enable path.
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 27a921e75711d924617269e0ba4adb8bae9fd0d1)
Change-Id: I3b06e02766753c59fac975363a2ead5c5e45b8f3
[ghackmann@google.com: adjust context, applying asm-uaccess.h changes to
uaccess.h]
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