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| author | Will Deacon <will.deacon@arm.com> | 2017-08-10 15:04:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-16 22:22:46 +0300 |
| commit | 59f47f9dcdcde20e0a20c434f18bcc50c7c824e4 (patch) | |
| tree | 47f3fb041d36a0e00ec8186542c2a6536a91d706 /arch/arm64/Kconfig | |
| parent | 78299fafcd78bec4f4ce145decefff5b7f664d80 (diff) | |
| download | linux-59f47f9dcdcde20e0a20c434f18bcc50c7c824e4.tar.xz | |
arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
Commit 376133b7edc2 upstream.
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>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -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 8f73eaccf50a..63ff04fe03e1 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -882,6 +882,7 @@ 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 |