Merge tag 'pull-tcg-20221220' of https://gitlab.com/rth7680/qemu into staging

Use interval trees for user-only vma mappings.
Assorted cleanups to page locking.

# gpg: Signature made Wed 21 Dec 2022 05:00:30 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-tcg-20221220' of https://gitlab.com/rth7680/qemu:
  accel/tcg: Restrict page_collection structure to system TB maintainance
  accel/tcg: Factor tb_invalidate_phys_range_fast() out
  accel/tcg: Rename tb_invalidate_phys_page_fast{,__locked}()
  accel/tcg: Remove trace events from trace-root.h
  accel/tcg: Restrict cpu_io_recompile() to system emulation
  accel/tcg: Move remainder of page locking to tb-maint.c
  accel/tcg: Move PageDesc tree into tb-maint.c for system
  accel/tcg: Use interval tree for user-only page tracking
  accel/tcg: Move page_{get,set}_flags to user-exec.c
  accel/tcg: Drop PAGE_RESERVED for CONFIG_BSD
  accel/tcg: Use interval tree for TARGET_PAGE_DATA_SIZE
  accel/tcg: Use interval tree for TBs in user-only mode
  accel/tcg: Rename page_flush_tb
  util: Add interval-tree.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>