Messages in this thread Patch in this message | | | From | Will Deacon <> | Subject | [PATCH v3 02/20] arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN | Date | Wed, 6 Dec 2017 12:35:21 +0000 |
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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> Signed-off-by: Will Deacon <will.deacon@arm.com> --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+)
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 -- 2.1.4
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