A few late fixes for target-hppa:

* Fix the SeaBIOS-hppa firmware build with gcc-10 on Debian

* Fix the SeaBIOS-hppa firmware to boot NetBSD again

* Fix many artist framebuffer out-of-bounds accesses as found by Alexander Bulekov

* Fix artist memory access bugs due to commit 5d971f9e6725 ("memory: Revert
  "memory: accept mismatching sizes in memory_region_access_valid")

* Fix various artist screen updates when running dtwm on HP-UX

In addition the SeaBIOS-hppa firmware now includes a version check to prevent
starting when it's incompatible to the emulated qemu hardware.

The patchset can be pulled from
https://github.com/hdeller/qemu-hppa.git target-hppa

Helge

----------------------------------------------------------------
Changes to v3:
* Fix memory fallouts due to commit 5d971f9e6725
* Fix graphic rendering bugs and screen refreshes with dtwm on HP-UX

Changes to v2:
* added more Acks by Richard Henderson
* added more artist framebuffer out-of-bounds fixes by
  Philippe Mathieu-Daudé which were reported by Alexander Bulekov
* fix NetBSD boot

Changes to v1:
* added Ack by Richard Henderson for the first patch
* revised out of bounds check based on Richards feedback

Helge Deller (7):
  hw/hppa: Sync hppa_hardware.h file with SeaBIOS sources
  seabios-hppa: Update to SeaBIOS hppa version 1
  hw/hppa: Implement proper SeaBIOS version check
  hw/hppa/lasi: Don't abort on invalid IMR value
  Revert "hw/display/artist: Avoid drawing line when nothing to display"
  hw/display/artist: Prevent out of VRAM buffer accesses
  hw/display/artist: Unbreak size mismatch memory accesses

Philippe Mathieu-Daudé (2):
  hw/display/artist: Check offset in draw_line to avoid buffer over-run
  hw/display/artist: Refactor artist_rop8() to avoid buffer over-run

Sven Schnelle (3):
  hw/display/artist.c: fix out of bounds check
  hw/display/artist: Fix invalidation of lines in artist_draw_line()
  hw/display/artist: Fix invalidation of lines near screen border

 hw/display/artist.c       | 179 +++++++++++++++++++++++---------------
 hw/hppa/hppa_hardware.h   |   6 ++
 hw/hppa/lasi.c            |   9 +-
 hw/hppa/machine.c         |  22 +++++
 pc-bios/hppa-firmware.img | Bin 766136 -> 783192 bytes
 roms/seabios-hppa         |   2 +-
 6 files changed, 143 insertions(+), 75 deletions(-)

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2.21.3