AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-30 14:36:46 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN

Browse Source 
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>
This commit is contained in:
Will Deacon 2017-08-10 13:04:48 +01:00
parent e046eb0c9b
commit 376133b7ed
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/Kconfig
View File

@ -910,6 +910,7 @@ endif
config ARM64_SW_TTBR0_PAN config ARM64_SW_TTBR0_PAN
bool "Emulate Privileged Access Never using TTBR0_EL1 switching" bool "Emulate Privileged Access Never using TTBR0_EL1 switching"
depends on BROKEN # Temporary while switch_mm is reworked
help help
Enabling this option prevents the kernel from accessing Enabling this option prevents the kernel from accessing
user-space memory directly by pointing TTBR0_EL1 to a reserved user-space memory directly by pointing TTBR0_EL1 to a reserved