----------------------------
- What: xtime, wall_to_monotonic
- When: 2.6.36+
- Files: kernel/time/timekeeping.c include/linux/time.h
- Why: Cleaning up timekeeping internal values. Please use
- existing timekeeping accessor functions to access
- the equivalent functionality.
- Who: John Stultz <johnstul@us.ibm.com>
-What: KVM memory aliases support
-When: July 2010
-Why: Memory aliasing support is used for speeding up guest vga access
- through the vga windows.
-
- Modern userspace no longer uses this feature, so it's just bitrotted
- code and can be removed with no impact.
-Who: Avi Kivity <avi@redhat.com>
-
-----------------------------
-
-What: KVM kernel-allocated memory slots
-When: July 2010
-Why: Since 2.6.25, kvm supports user-allocated memory slots, which are
- much more flexible than kernel-allocated slots. All current userspace
- supports the newer interface and this code can be removed with no
- impact.
-Who: Avi Kivity <avi@redhat.com>
--
------------------------------
--
What: KVM paravirt mmu host support
When: January 2011
Why: The paravirt mmu host support is slower than non-paravirt mmu, both