[PATCH v6 0/2] context tracker support for arm64

Implement and enable context tracking for arm64 (which is a prerequisite for FULL_NOHZ support). This patchset builds upon earlier work by Kevin Hilman and is based on Will Deacon's tree. Changes v5 to v6: * Don't save far_el1 in x26 in el0_dbg path (not needed) * TIF_NOHZ processes go through th

[PATCH v6 0/2] context tracker support for arm64

Implement and enable context tracking for arm64 (which is a prerequisite for FULL_NOHZ support). This patchset builds upon earlier work by Kevin Hilman and is based on Will Deacon's tree. Changes v5 to v6: * Don't save far_el1 in x26 in el0_dbg path (not needed) * TIF_NOHZ processes go through th