Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* New KVM PV features (Marcelo, Wanpeng)
* valgrind fixes (Andrey)
* Remove clock reset notifiers (David)
* KConfig and Makefile cleanups (Paolo)
* Replay and icount improvements (Pavel)
* x86 FP fixes (Peter M.)
* TCG locking assertions (Roman)
* x86 support for mmap-ed -kernel/-initrd (Stefano)
* Other cleanups (Wei Yang, Yan Zhao, Tony)
* LSI fix for infinite loop (Prasad)
* ARM migration fix (Catherine)
* AVX512_BF16 feature (Jing)

# gpg: Signature made Tue 20 Aug 2019 19:00:54 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (33 commits)
  x86: Intel AVX512_BF16 feature enabling
  scsi: lsi: exit infinite loop while executing script (CVE-2019-12068)
  test-bitmap: test set 1 bit case for bitmap_set
  migration: do not rom_reset() during incoming migration
  HACKING: Document 'struct' keyword usage
  kvm: vmxcap: Enhance with latest features
  cpus-common: nuke finish_safe_work
  icount: remove unnecessary gen_io_end calls
  icount: clean up cpu_can_io at the entry to the block
  replay: rename step-related variables and functions
  replay: refine replay-time module
  replay: fix replay shutdown
  util/qemu-timer: refactor deadline calculation for external timers
  replay: document development rules
  replay: add missing fix for internal function
  timer: last, remove last bits of last
  replay: Remove host_clock_last
  timer: Remove reset notifiers
  mc146818rtc: Remove reset notifiers
  memory: fix race between TCG and accesses to dirty bitmap
  ...

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