qemu emualtion of AmigaONE XE

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 19:26 #21

Quite a regular

@Maijestro
I get further than that with the U-Boot menu coming up and also loading and starting Linux so maybe check that the U-Boot image is correct. It's just the last 512KB of the update.image binary that can be cut as described in the comment in qemu/hw/ppc/amigaone.c.
You can just use -bios path/to/u-boot-amigaone.bin without -L the 0L is only needed if you need other rom images that come with QEMU but it does not find it. I never needed to use that as it finds that if you run from the build dir.

The correct u-boot-amigaone.bin should have MD5 sum: 36d9f14f05ff5d539cc56844ff1f5d25

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 19:35 #22

Just can't stay away

@balaton
Quote:

repeating this endlessly but I don't know what should be there.

Not sure, but it may be the nvram which AFAIK you don't emulate on Pegasos2 and AmigaOne yet.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 19:49 #23

Quite a regular

@joerg
The nvram should be at (by the way what's cfg reg 0x61?)


articia_reg_read: Unimplemented register read 0x61 1

articia_reg_write: Unimplemented register write 0x61 1 <- fd

articia_reg_read: Unimplemented register read 0x61 1

pci_cfg_write articia-pci-host 00:00.0 @0x56 <- 0xb

Invalid read at addr 0xFD0E0004, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0005, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0006, size 1, region '(null)', reason: rejected

...

Invalid read at addr 0xFD0E0FFE, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0FFF, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0000, size 4, region '(null)', reason: rejected

pci_cfg_write articia-pci-host 00:00.0 @0x56 <- 0x0





U-Boot 1.1.1 (Mar  3 2005 - 16:42:53), Build: 03/03/05

At least that's where U-boot looks for it at start. The reg 0x56 is clearly marked in a comment in the U-Boot source to enable nvram and it seems to be poked constantly when reading from CD due to accessing a delay stored in an envvar. But the addresses I see after Linux kernel starts are different so it should probably some peripheral mapped there. Between fd000000-fdffffff I think there should be PCI memory 0-ffffff where e.g. VGA legacy RAM or such would appear but that seems to be mapped at different address. Maybe real machine has something else there though. Memory map I have now:


0000000000000000-ffffffffffffffff (prio 0, i/o): system

    0000000000000000-000000000fffffff (prio 0, ram): ram

    0000000040000000-0000000040007fff (prio 0, ram): init-cache

    0000000080000000-00000000fcffffff (prio 0, i/o): alias pci-mem-high @pci-mem 80000000-fcffffff

    00000000fd000000-00000000fdffffff (prio 0, i/o): alias pci-mem-low @pci-mem 00000000-00ffffff

    00000000fe000000-00000000feffffff (prio 0, i/o): articia

      00000000fe000000-00000000febfffff (prio 1, i/o): pci-io

here a lot of ISA stuff mapped from VIA and io BARs of PCI cards

        00000000fe800100-00000000fe80011f (prio 1, i/o): uhci

        00000000fe800120-00000000fe80013f (prio 1, i/o): uhci

        00000000fe800200-00000000fe8002ff (prio 1, i/o): via-ac97.sgd

        00000000fe800300-00000000fe800303 (prio 1, i/o): via-ac97.fm

        00000000fe800304-00000000fe800307 (prio 1, i/o): via-ac97.midi

    00000000fff00000-00000000fff7ffff (prio 0, rom): rom

        

memory-region: pci-mem

  0000000000000000-ffffffffffffffff (prio 0, i/o): pci-mem

    00000000000a0000-00000000000bffff (prio 1, i/o): vga-lowmem

    0000000080000000-0000000080ffffff (prio 1, ram): vga.vram

    0000000081000000-0000000081003fff (prio 1, i/o): ati.mmregs

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 19:55 #24

Just can't stay away

@balatonQuote:

balaton wrote:@Maijestro
I get further than that with the U-Boot menu coming up and also loading and starting Linux so maybe check that the U-Boot image is correct. It's just the last 512KB of the update.image binary that can be cut as described in the comment in qemu/hw/ppc/amigaone.c.
You can just use -bios path/to/u-boot-amigaone.bin without -L the 0L is only needed if you need other rom images that come with QEMU but it does not find it. I never needed to use that as it finds that if you run from the build dir.

The correct u-boot-amigaone.bin should have MD5 sum: 36d9f14f05ff5d539cc56844ff1f5d25

Ok, you are right. The firmware or U-Boot Preferences menu is now displayed to me after the bus 0: has been scanned.


qemu/build/qemu-system-ppc -M amigaone -L /Users/reneengel/qemu/pc-bios -device VGA,romfile=/Users/reneengel/qemu/pc-bios/VGABIOS-lgpl-latest.bin -cdrom /Users/reneengel/Downloads/A1\ Linux\ Installer.iso -display cocoa -serial stdio -d unimp,guest_errors

via_superio_cfg: unimplemented register 0xe0

via_superio_cfg: unimplemented register 0xe2

via_superio_cfg: unimplemented register 0xe3

via_superio_cfg: unimplemented register 0xe6

via_superio_cfg: unimplemented register 0xe7

via_superio_cfg: unimplemented register 0xe8

articia_reg_write: Unimplemented register write 0x80 1 <- bb

via_superio_cfg: unimplemented register 0xe7

via_superio_cfg: unimplemented register 0xe8

via_superio_cfg: unimplemented register 0xe2

articia_reg_write: Unimplemented register write 0x80 1 <- 0

articia_reg_write: Unimplemented register write 0x80 1 <- 1

articia_reg_read: Unimplemented register read 0x61 1

articia_reg_write: Unimplemented register write 0x61 1 <- fd

articia_reg_read: Unimplemented register read 0x61 1

Invalid read at addr 0xFD0E0004, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0005, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0006, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0007, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0008, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0009, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E000F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0010, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0011, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0012, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0013, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0014, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0015, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0016, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0017, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0018, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0019, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E001F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0020, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0021, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0022, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0023, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0024, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0025, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0026, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0027, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0028, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0029, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E002F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0030, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0031, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0032, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0033, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0034, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0035, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0036, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0037, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0038, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0039, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E003F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0040, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0041, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0042, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0043, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0044, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0045, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0046, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0047, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0048, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0049, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E004F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0050, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0051, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0052, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0053, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0054, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0055, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0056, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0057, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0058, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0059, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E005F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0060, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0061, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0062, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0063, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0064, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0065, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0066, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0067, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0068, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0069, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E006F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0070, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0071, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0072, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0073, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0074, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0075, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0076, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0077, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0078, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0079, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E007F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0080, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0081, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0082, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0083, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0084, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0085, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0086, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0087, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0088, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0089, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E008F, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0090, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0091, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0092, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0093, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0094, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0095, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0096, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0097, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0098, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E0099, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009A, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009B, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009C, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009D, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009E, size 1, region '(null)', reason: rejected

Invalid read at addr 0xFD0E009F, siz



U-Boot 1.1.1 (Mar  3 2005 - 16:42:53), Build: 03/03/05



CPU:   MPC7457 v1.2 @ 1150 MHz

Board: AmigaOne

DRAM:  

Information for SIMM bank 0:

Number of banks: 2

Number of row addresses: 13

Number of coumns addresses: 10

SIMM is not registered

Supported burst lenghts: 8 4         

Supported CAS latencies: CAS 3            

RAS to CAS latency: 2

Precharge latency: 2

SDRAM highest CAS latency: 250

SDRAM 2nd highest CAS latency: 120

SDRAM data width: 8

Auto Refresh supported

Refresh time: 782 clocks

Bank 0 size: 256 MB

Bank 1 size: 256 MB



Slot 1: vacant

DIMM0_B0_SCR0 = 0x00e78f00

DIMM0_B1_SCR0 = 0x00e78f00

DIMM0_B2_SCR0 = 0x00678f00

DIMM0_B3_SCR0 = 0x00678f00

Using CAS 4 (slow)

DRAM_GCR0 = 0x00000000

Refresh set to 1561 clocks, auto refresh on

DRAM_REFRESH0 = 0x00019619

Mode bank 0: 0x00008042

Mode bank 1: 0x00008042

512 MB

FLASH:  0 kB

*** Warning - bad CRC, using default environment



VGA:   0 .. 

In:    serial

Out:   serial

Err:   serial

And don't worry about -L in the command line, I copied everything into the Qemu pc-bios folder that makes it easier for me to find everything quickly. Qemu also looks for files in these directories, so it's a good choice for me.

Edit: At the moment I can only test with Linux until my AmigaOne A1/XE version of AmigaOs4.1 has arrived, testing with Linux should also be good for now to understand things a little better.

Edited by Maijestro on 2023/7/29 20:33:28

MacStudio ARM M1 Max Qemu//Pegasos2 AmigaOs4.1 FE / AmigaOne x5000/40 AmigaOs4.1 FE

LiveForIt

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 20:11 #25

Home away from home

@Maijestro

Where can download the QEMU M2 mac?
That has the qemu-system-ppc file?

(NutsAboutAmiga)

Basilisk II for AmigaOS4
AmigaInputAnywhere
Excalibur
and other tools and apps.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/29 20:26 #26

Just can't stay away

@LiveForItQuote:

LiveForIt wrote:@Maijestro

Where can download the QEMU M2 mac?
That has the qemu-system-ppc file?

You have to build it yourself. Balaton provides everything for this on its project page. And yes I use Qemu under Mac M1 with qemu-system-ppc

Quote:

I've uploaded what I have at https://osdn.net/projects/qmiga/scm/git/qemu/summary in the amigaone branch, do git checkout amigaone after cloning that repo and build as usual. Also see comments in hw/ppc/amigaone.c about vgabios and how to get firmware. See also https://osdn.net/projects/qmiga/wiki/DeveloperTips

More information is available in the thread above.

MacStudio ARM M1 Max Qemu//Pegasos2 AmigaOs4.1 FE / AmigaOne x5000/40 AmigaOs4.1 FE

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 14:35 #27

Just can't stay away

@balaton
Quote:

Memory map I have now:
0000000080000000-00000000fcffffff (prio 0, i/o): alias pci-mem-high @pci-mem 80000000-fcffffff 00000000fd000000-00000000fdffffff (prio 0, i/o): alias pci-mem-low @pci-mem 00000000-00ffffff

According to https://lists.ozlabs.org/pipermail/lin ... 007-September/041845.html fd000000 01000000 is "PCI alias memory", which I think is ISA related.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 15:00 #28

Just can't stay away

@Maijestro
Quote:

You have to build it yourself. Balaton provides everything for this on its project page. And yes I use Qemu under Mac M1 with qemu-system-ppc

If possible you should upload your MacOS QEmu binaries somewhere. Would help MacOS users who don't have the required build system installed, no skills and/or the time to install it, get the sources and build QEmu themselves.

LiveForIt

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 15:23 #29

Home away from home

@joerg

My issue, don’t know what package system to use, don’t know what dependencies I need.

(NutsAboutAmiga)

Basilisk II for AmigaOS4
AmigaInputAnywhere
Excalibur
and other tools and apps.

smarkusg

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 15:42 #30

Not too shy to talk

@LiveForIt

Take an interest in brew :

https://brew.sh/

If you don't care for your own compiled version:

https://formulae.brew.sh/formula/qemu

If you want to compile, you need to add the missing packages only via package brew and this should be enough.

ps
I am not on my computer right now, but I can check what you need later. You can also search on google

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 15:43 #31

Just can't stay away

@LiveForIt
Quote:

My issue, don’t know what package system to use, don’t know what dependencies I need.

According to the QEmu homepage Homebrew is used for building QEmu on MacOS.
Don't know if that helps, and I don't know anything about current MacOS versions.

Edit: @smarkusg was faster.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 15:45 #32

Just can't stay away

@joergQuote:

joerg wrote:@Maijestro
If possible you should upload your MacOS QEmu binaries somewhere. Would help MacOS users who don't have the required build system installed, no skills and/or the time to install it, get the sources and build QEmu themselves.

If interested, I would provide the build for Mac M1/M2 with everything needed to test it.

At the moment I don't see much sense in it, because we can't boot Linux or AmigaOs4.1 in any way before the necessary patches are written to make it possible.

I think more important right now would be how things work on real hardware to move forward with this emulation.

MacStudio ARM M1 Max Qemu//Pegasos2 AmigaOs4.1 FE / AmigaOne x5000/40 AmigaOs4.1 FE

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 16:27 #33

Just can't stay away

@LiveForItQuote:

LiveForIt wrote:@joerg

My issue, don’t know what package system to use, don’t know what dependencies I need.

You can build it yourself very easily.

1. install the package manager Brew from https://brew.sh/ this will also install Xcode for MacOs. I'm not exactly sure which dependencies are needed for building directly, but if something is missing Brew will show it to you in the terminal.

2. on https://osdn.net/projects/qmiga/scm/git/qemu/summary clone the link in the upper right corner. With "git clone http://scm.osdn.net/gitroot/qmiga/qemu.git" via the terminal. If "git" or anything else is missing you can install packages with "brew install package name" via the terminal.

If the cloning was successful navigate to your user folder, there should be Qemu as SourceCode. Now you have to choose the right branch, you can do this via the terminal "cd /path/to/Qemu git checkout amigaone" you should now be on the right branch "Amigaone" and can then configure with:

"./configure --target-list=ppc-softmmu --disable-dbus-display --enable-slirp --enable-lto --disable-virglrenderer"

"make"

Also have a look in the folder Qemu/hw/ppc/ and read the file amigaone.c. There you will find an explanation how to configure the Uboot
bootloader and from where you can get the VGA,romfile. Similar it is done under Linux if all needed dependencies for compiling are fulfilled.

Everything else is also a little further up in the thread. I hope this will be helpful to them, otherwise let me know.

MacStudio ARM M1 Max Qemu//Pegasos2 AmigaOs4.1 FE / AmigaOne x5000/40 AmigaOs4.1 FE

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/30 22:51 #34

Quite a regular

@joerg
Quote:

fd000000 01000000 is "PCI alias memory", which I think is ISA related.

That's the device tree source from Linux that I've also used to implement these regions but what is ISA related mean? I understood it that it's the low part of pci-mem where e.g. the legacy ISA compatible VGA paged vram would show up and probably also used for BIOS emulation. I think this works so this region should be correct.

After quite some debuging I've found that Linux crashes on boot because it tries to access memory just below 1 GB while extracting the device tree even though it correctly listed memory to be 512MB before that. I have no idea why that happens but giving it -m 1g avoids this and actually boots with 1GB. But additionally to that the amigaone images from sourceforge use radeonfb so that needs to be emulated (also needs appropriate PC rom for that so I won't go into detail on that as it's unusable for graphics beyond console anyway) or change the command line on the CD to remove video option (but I could not find out how to change it from U-Boot becuse the setting there seems to be overridden by the CD).

So Linux now works apart from needing 1GB and not sure why it fails with less but maybe AmigaOS does not have this problem so I'm waiting for somebody with AmigaOne AOS version to try it. You need to make a boot disk like described on my pegasos2 page at http://zero.eik.bme.hu/~balaton/qemu/amiga/aos_pegasos2.html but for AmigaOne one needs to use slb_v2 instead of just copying files so you either need to do that on running AmigaOS or I think amitools can do that too but I don't know how so you need to figure out.

If somebody can confirm that the Linux images work with less than 1GB memory on real machine I'd be interested if somebody knows why it tries to access addresses above existing memory. What happens is a DSI is generated which is not handled that early when the device tree is read so it crashes but can't even print a crash log yet as it's too early in boot.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/31 6:38 #35

Just can't stay away

@balaton
Quote:

but what is ISA related mean?

ISA only supports 16 MB address space, with ISA you can only use this address space and not access the larger ~2GB PCI address space at 0x80000000-0xfcffffff.

Quote:

for AmigaOne one needs to use slb_v2 instead of just copying files so you either need to do that on running AmigaOS or I think amitools can do that too but I don't know how so you need to figure out.

IIRC amiga-fdisk supports installing a SLB into the RDB.

Quote:

If somebody can confirm that the Linux images work with less than 1GB memory on real machine I'd be interested if somebody knows why it tries to access addresses above existing memory.

Since there is a closed bug where it crashed with more than 700 MB RAM installed it has to work with less than 1 GB.
I had Linux installed on my AmigaOne XE, but that was a very long time ago and I don't remember how much RAM I had in the XE. Probably 256 or 512 MB.

The pictures on https://amigaone-linux.sourceforge.net/ for example
https://amigaone-linux.sourceforge.net/ppcboot4.php show a system with only 128 MB RAM running Linux.

Edited by joerg on 2023/7/31 7:01:21
Edited by joerg on 2023/7/31 7:07:32
Edited by joerg on 2023/7/31 7:07:57

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/31 16:19 #36

Quite a regular

@joerg
Actually I was wrong about correctly detecting memory, it seems to always detect 512MB even if there's less so for now if you test this use -m 512 or -m 1g. There are also errors about invalid i2c communication while reading the SPD eeproms whcih I'm not sure is a bug in U-Boot not sending an ACK when expected or an error in emulation breaking the i2c state somewhere but this may be related to wrong memory detection.

Other than that there's not much progress, I've split up the patch and fixed the via-ide so this could be submitted to QEMU eventually but we would still need the firmware sources for that. According to a thread on amigaworld.net this was explored before and the user BillT there or @m3x here might have that source somewhere but I could not find it on line.

Hypex

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/31 17:06 #37

Not too shy to talk

@balaton

The XE UBoot source was only partial. There were open parts for the main code and common shared routines. But other parts of UBoot core functions were binary only. This would include the "boota" code which remains hidden. Not that scanning a HDD for a boot block was anything real special.

On SF there is kernel source, at least for 3.10, which would include the A1 kernel patches.

https://sourceforge.net/projects/amigaone-linux/files/linux-image/

Have you got any further than UBoot menu? In the image I don't see the net installer booting at all but just a UBoot menu. Without nvram you will need to boot it from the menu. Or boota command on CLI. It's a normal auto boot CD.

Old kernels did have a limit on 750GB and IIRC that affected mainline x86 as well. The kernel on the installer is much newer. I had 2GB working in my A1 when I used it last.

As to radeonfb, that shouldn't take affect until the system is installed to HDD. I checked a net boot image just before and it wasn't set in cmdline. You can see this by mounting the iso image and checking the menu file at boot/menu.lst.

https://sourceforge.net/p/uboot-pa6t/c ... /AmigaOneG3SE/cmd_boota.c

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/31 17:12 #38

Just can't stay away

@Hypex
Quote:

But other parts of UBoot core functions were binary only. This would include the "boota" code which remains hidden.

Re: Pegasos2 with RadeonHD/RX via bridge

Posted on: 2023/7/31 19:40 #39

Quite a regular

@Hypex
I've tried the Linux isos from the same site but different dir here: https://sourceforge.net/projects/amiga ... x/files/debian-installer/ I can boot these but these do have video=radeonfb in their command line and it does take effect for the console as well.

There are two things you need: A vgabios that does not crash the BIOS emulator in the firmware and at least 512MB RAM given to virtual machine because it's not detecting memory size correctly if you have less. Then have to set Amiga boot options (despite booting Linux) to try CD first at the bottom within in the Boot options menu. Then escape to top level and choose use settings for this boot. Without also emulating a radeon card you'll probably only get some logs on serial though. I have some unmerged ati-vga patches and not sure those would be needed but it would not work for X or AmigaOS anyway so only good for testing Linux console. That's why I don't say how to run it as it likely would not work but I can confirm that Linux boots. It would be more interesting to test with AmigaOS which should be possible using SM502 driver the same way as with pegasos2 but I don't have that AmigaOS version so waiting for somebody to do this.