Merge tag 'hppa-fixes-8.2-pull-request' of https://github.com/hdeller/qemu-hppa into...

Merge tag 'hppa-fixes-8.2-pull-request' of https://github.com/hdeller/qemu-hppa into staging

target/hppa qemu v8.2 regression fixes

There were some regressions introduced with Qemu v8.2 on the hppa/hppa64
target, e.g.:

- 32-bit HP-UX crashes on B160L (32-bit) machine
- NetBSD boot failure due to power button in page zero
- NetBSD FPU detection failure
- OpenBSD 7.4 boot failure

This patch series fixes those known regressions and additionally:

- allows usage of the max. 3840MB of memory (instead of 3GB),
- adds support for the qemu --nodefaults option (to debug other devices)

This patch set will not fix those known (non-regression) bugs:
- HP-UX and NetBSD still fail to boot on the new 64-bit C3700 machine
- Linux kernel will still fail to boot on C3700 as long as kernel modules are used.

Changes v2->v3:
- Added comment about Figures H-10 and H-11 in the parisc2.0 spec
  in patch which calculate PDC address translation if PSW.W=0
- Introduce and use hppa_set_ior_and_isr()
- Use drive_get_max_bus(IF_SCSI), nd_table[] and serial_hd() to check
  if default devices should be created
- Added Tested-by and Reviewed-by tags

Changes v1->v2:
- fix OpenBSD boot with SeaBIOS v15 instead of v14
- commit message enhancements suggested by BALATON Zoltan
- use uint64_t for ram_max in patch #1

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# gpg: Signature made Sat 13 Jan 2024 05:57:17 GMT
# gpg:                using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg:                 aka "Helge Deller <deller@kernel.org>" [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: 4544 8228 2CD9 10DB EF3D  25F8 3E5F 3D04 A7A2 4603
#      Subkey fingerprint: BCE9 123E 1AD2 9F07 C049  BBDE F712 B510 A23A 0F5F

* tag 'hppa-fixes-8.2-pull-request' of https://github.com/hdeller/qemu-hppa:
  target/hppa: Update SeaBIOS-hppa to version 15
  target/hppa: Fix IOR and ISR on error in probe
  target/hppa: Fix IOR and ISR on unaligned access trap
  target/hppa: Export function hppa_set_ior_and_isr()
  target/hppa: Avoid accessing %gr0 when raising exception
  hw/hppa: Move software power button address back into PDC
  target/hppa: Fix PDC address translation on PA2.0 with PSW.W=0
  hw/pci-host/astro: Add missing astro & elroy registers for NetBSD
  hw/hppa/machine: Disable default devices with --nodefaults option
  hw/hppa/machine: Allow up to 3840 MB total memory

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