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

* Some Meson test conversions
* KVM dirty page ring buffer fix
* KVM TSC scaling support
* Fixes for SG_IO with /dev/sdX devices
* (Non)support for host devices on iOS
* -smp cleanups

# gpg: Signature made Fri 25 Jun 2021 15:16:18 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# 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-gitlab/tags/for-upstream: (28 commits)
  machine: reject -smp dies!=1 for non-PC machines
  machine: pass QAPI struct to mc->smp_parse
  machine: add error propagation to mc->smp_parse
  machine: move common smp_parse code to caller
  machine: move dies from X86MachineState to CpuTopology
  file-posix: handle EINTR during ioctl
  block: detect DKIOCGETBLOCKCOUNT/SIZE before use
  block: try BSD disk size ioctls one after another
  block: check for sys/disk.h
  block: feature detection for host block support
  file-posix: try BLKSECTGET on block devices too, do not round to power of 2
  block: add max_hw_transfer to BlockLimits
  block-backend: align max_transfer to request alignment
  osdep: provide ROUND_DOWN macro
  scsi-generic: pass max_segments via max_iov field in BlockLimits
  file-posix: fix max_iov for /dev/sg devices
  KVM: Fix dirty ring mmap incorrect size due to renaming accident
  configure, meson: convert libusbredir detection to meson
  configure, meson: convert libcacard detection to meson
  configure, meson: convert libusb detection to meson
  ...

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