Merge tag 'mem-2023-07-12' of https://github.com/davidhildenbrand/qemu into staging

Merge tag 'mem-2023-07-12' of https://github.com/davidhildenbrand/qemu into staging

Hi,

"Host Memory Backends" and "Memory devices" queue ("mem"):
- Memory device cleanups (especially around machine initialization)
- "x-ignore-shared" migration support for virtio-mem
- Add an abstract virtio-md-pci device as a common parent for
  virtio-mem-pci and virtio-pmem-pci (virtio based memory devices)
- Device unplug support for virtio-mem-pci

# -----BEGIN PGP SIGNATURE-----
#
# iQJFBAABCAAvFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAmSuYAQRHGRhdmlkQHJl
# ZGhhdC5jb20ACgkQTd4Q9wD/g1od9A/9HXT8IqKGup9is7P/mpobPWXczRGZ5sEg
# /q21PzX6crr9aFa+fYRF/Dlm3G/cSMOVXFRKGz3royLjsvaEj/veEewfKF8KWbBf
# eIS9udQTOwoD2kAhcv3pm0SwSJoVizpw2z7IodGVKE6iZxTXsmDksqQuFbrvVLSh
# 2wtP4lizEXco/YsiCoAnStj2QtXBcHw7Ua7W2cDzxFmL+1pM5w3rjQ1ydCNz3bSG
# l4CXXs1i8OmOZbFN78F/E9SEkzQnAuHSO0Sc1aeAJkwVzOt2lj/YMgt0jHjAY0at
# pheWZ5pEE6hnQP740YXpt4Y6IIgO22pH23dLhq9A2reyRnwjt830uObHi3qAE8kB
# KR+ZQ+Z5bI6ZNB/EFiUsC1dFsr2fF20zQlO02MctyJ+lUG6p3gpvwsGScQxt+zdF
# QlkiSecGErYwC+nZ529SQB4gSEJTCjd/STDoidVYnZazdStaOaSyft02xRNzBPW/
# OnOY+6ZxZK6R11KfwGjnsftrovQIP3Pqi9TXGzW2xVlkWJHqlicy6G3ZfceTTlj9
# Gg2Ue694Wr1r4PDV2XlYcZ1IPLjSy5Msp5V2wERRrp3OItxnvegvTevQN7USEHC+
# BPGNMu11jriSY2pE5BSFN0hfGOvuvsk3GreLJiHFUXoje6gzAynuLjCN/CHdIVyK
# 5i0AwdZ+xcA=
# =ch6m
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 12 Jul 2023 09:10:44 AM BST
# gpg:                using RSA key 1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A
# gpg:                issuer "david@redhat.com"
# gpg: Good signature from "David Hildenbrand <david@redhat.com>" [unknown]
# gpg:                 aka "David Hildenbrand <davidhildenbrand@gmail.com>" [undefined]
# gpg:                 aka "David Hildenbrand <hildenbr@in.tum.de>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1BD9 CAAD 735C 4C3A 460D  FCCA 4DDE 10F7 00FF 835A

* tag 'mem-2023-07-12' of https://github.com/davidhildenbrand/qemu: (21 commits)
  virtio-mem-pci: Device unplug support
  virtio-mem: Prepare for device unplug support
  virtio-md-pci: Support unplug requests for compatible devices
  virtio-md-pci: Handle unplug of virtio based memory devices
  arm/virt: Use virtio-md-pci (un)plug functions
  pc: Factor out (un)plug handling of virtio-md-pci devices
  virtio-md-pci: New parent type for virtio-mem-pci and virtio-pmem-pci
  virtio-mem: Support "x-ignore-shared" migration
  migration/ram: Expose ramblock_is_ignored() as migrate_ram_is_ignored()
  virtio-mem: Skip most of virtio_mem_unplug_all() without plugged memory
  softmmu/physmem: Warn with ram_block_discard_range() on MAP_PRIVATE file mapping
  memory-device: Track used region size in DeviceMemoryState
  memory-device: Refactor memory_device_pre_plug()
  hw/i386/pc: Remove PC_MACHINE_DEVMEM_REGION_SIZE
  hw/i386/acpi-build: Rely on machine->device_memory when building SRAT
  hw/i386/pc: Use machine_memory_devices_init()
  hw/loongarch/virt: Use machine_memory_devices_init()
  hw/ppc/spapr: Use machine_memory_devices_init()
  hw/arm/virt: Use machine_memory_devices_init()
  memory-device: Introduce machine_memory_devices_init()
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>