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| author | Catalin Marinas <catalin.marinas@arm.com> | 2016-07-01 14:58:21 +0100 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2016-10-12 17:34:22 +0530 |
| commit | 8ea0a504d9d79864ade6d7739f9e1b98a24b3f61 (patch) | |
| tree | 77b55f0bc5bdc691b76ff98e5060de477805a838 /arch/x86/kernel | |
| parent | f80392d0ae1dc602e4115a4d510abed889425b28 (diff) | |
FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
This patch moves the directly coded alternatives for turning PAN on/off
into separate uaccess_{enable,disable} macros or functions. The asm
macros take a few arguments which will be used in subsequent patches.
Note that any (unlikely) access that the compiler might generate between
uaccess_enable() and uaccess_disable(), other than those explicitly
specified by the user access code, will not be protected by PAN.
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Change-Id: Ic3fddd706400c8798f57456c56361d84d234f6ef
(cherry picked from commit a4820644c627b82cbc865f2425bb788c94743b16)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Diffstat (limited to 'arch/x86/kernel')
0 files changed, 0 insertions, 0 deletions