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Subject[PATCH 02/18] arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN
Date
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.

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 0df64a6a56d4..582bbd77c390 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -872,6 +872,7 @@ 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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