Will Deacon d50240a5f6 arm64: mm: permit use of tagged pointers at EL0 ... TCR.TBI0 can be used to cause hardware address translation to ignore the top byte of userspace virtual addresses. Whilst not especially useful in standard C programs, this can be used by JITs to `tag' pointers with various pieces of metadata. This patch enables this bit for AArch64 Linux, and adds a new file to Documentation/arm64/ which describes some potential caveats when using tagged virtual addresses. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2013-09-03 10:18:02 +01:00
..
booting.txt	arm64: Expand arm64 image header	2013-08-22 11:45:04 +01:00
memory.txt	arm64: KVM: document kernel object mappings in HYP	2013-06-12 16:42:20 +01:00
tagged-pointers.txt	arm64: mm: permit use of tagged pointers at EL0	2013-09-03 10:18:02 +01:00