diff options
| author | Will Deacon <will.deacon@arm.com> | 2017-08-10 13:04:48 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-12-11 13:40:22 +0000 |
| commit | 376133b7edc20f237a42e4c72415cc9e8c0a9704 (patch) | |
| tree | caf8c22702c3d7b935730e497b16ff288dd8afcb /arch/arm64 | |
| parent | e046eb0c9bf26d94be9e4592c00c7a78b0fa9bfd (diff) | |
arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
We're about to rework the way ASIDs are allocated, switch_mm is
implemented and low-level kernel entry/exit is handled, so keep the
ARM64_SW_TTBR0_PAN code out of the way whilst we do the heavy lifting.
It will be re-enabled in a subsequent patch.
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>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index a93339f5178f..7e7d7fd152c4 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -910,6 +910,7 @@ endif config ARM64_SW_TTBR0_PAN bool "Emulate Privileged Access Never using TTBR0_EL1 switching" + depends on BROKEN # Temporary while switch_mm is reworked help Enabling this option prevents the kernel from accessing user-space memory directly by pointing TTBR0_EL1 to a reserved |