Merge tag 'pull-request-2022-07-07' of https://gitlab.com/thuth/qemu into staging

Merge tag 'pull-request-2022-07-07' of https://gitlab.com/thuth/qemu into staging

* Check validity of the address in the SET PREFIX instruction
* Fix booting from devices that use 4k sectors, but are not like DASDs
* Re-evaluate pending interrupts after EXECUTE of certain instructions

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# gpg: Signature made Thu 07 Jul 2022 12:37:49 PM +0530
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [undefined]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [undefined]
# 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: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-07-07' of https://gitlab.com/thuth/qemu:
  target/s390x: Exit tb after executing ex_value
  target/s390x: Remove DISAS_PC_STALE_NOCHAIN
  target/s390x: Remove DISAS_PC_STALE
  target/s390x: Remove DISAS_GOTO_TB
  pc-bios/s390-ccw: Update the s390-ccw bios binaries with the virtio-blk fixes
  pc-bios/s390-ccw/netboot.mak: Ignore Clang's warnings about GNU extensions
  pc-bios/s390-ccw/virtio: Remove "extern" keyword from prototypes
  pc-bios/s390-ccw/virtio-blkdev: Request the right feature bits
  pc-bios/s390-ccw: Split virtio-scsi code from virtio_blk_setup_device()
  pc-bios/s390-ccw/virtio: Beautify the code for reading virtqueue configuration
  pc-bios/s390-ccw/virtio: Read device config after feature negotiation
  pc-bios/s390-ccw/virtio: Set missing status bits while initializing
  pc-bios/s390-ccw/virtio-blkdev: Remove virtio_assume_scsi()
  pc-bios/s390-ccw/virtio-blkdev: Simplify/fix virtio_ipl_disk_is_valid()
  pc-bios/s390-ccw/bootmap: Improve the guessing logic in zipl_load_vblk()
  pc-bios/s390-ccw/virtio: Introduce a macro for the DASD block size
  pc-bios/s390-ccw: Add a proper prototype for main()
  target/s390x/tcg: SPX: check validity of new prefix

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