Hervé Poussineau
54c86f5a48
hw/ppc: deprecate the machine type 'prep', replaced by '40p'
...
- prep machine is a fictional machine, so has no specifications. Which
devices can be changed/added/removed without impact? Are interrupts
correctly mapped?
- prep firmware (OHW) has support only for IDE drives (no SCSI).
Booting from IDE has been broken approximatively 3 years ago, and nobody complained.
- OHW is limited on IDE boot to a specific set of OS loaders.
These operating systems are of the 2004 time frame.
- OHW can use -kernel. Linux kernel freezes a long time after PS/2 mouse
detection, and then screen becomes garbage. This was already broken in
QEMU v2.7, 2 years ago, and nobody complained.
On the other side:
- 40p is a real machine, so emulation can be checked against
hardware specifications
- OpenBIOS has support for SCSI block devices, including 40p LSI adapter
- OpenBIOS can start mostly all Linux kernels (including recent ones)
and recent operating system (like NetBSD 7.1.2)
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
[dwg: Drop prep from boot-serial test to avoid deprecation warnings]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-08-21 14:28:45 +10:00
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