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Revert "FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN"

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This reverts commit 67cd3bda54.

Bug: 31432001
Change-Id: I1e5836ce0b41b2262d95c5c4c49ace3b96ae0b1f
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Sami Tolvanen 2016-12-14 12:31:55 -08:00
parent ee2bcbd8ed
commit 9ce0ba91ce
1 changed files with 0 additions and 8 deletions
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8
arch/arm64/Kconfig
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@ -706,14 +706,6 @@ config SETEND_EMULATION
If unsure, say Y If unsure, say Y
endif endif
config ARM64_SW_TTBR0_PAN
bool "Emulate Priviledged Access Never using TTBR0_EL1 switching"
help
Enabling this option prevents the kernel from accessing
user-space memory directly by pointing TTBR0_EL1 to a reserved
zeroed area and reserved ASID. The user access routines
restore the valid TTBR0_EL1 temporarily.
menu "ARMv8.1 architectural features" menu "ARMv8.1 architectural features"
config ARM64_HW_AFDBM config ARM64_HW_AFDBM