qemu-system-sparc64 can boot FreeBSD 10.3!

Hi all,

So while I've been working on this, it seems that Artyom has beaten me
to it:
http://tyom.blogspot.co.uk/2016/04/freebsd-103sparc64-under-qemu.html.

A copy of QEMU git master along with
https://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02284.html
and
https://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg02285.html
can boot the FreeBSD 10.3 release:

$ ./qemu-system-sparc64 -cdrom FreeBSD-10.3-RELEASE-sparc64-bootonly.iso
-boot d -m 512 -nographic
OpenBIOS for Sparc64
Configuration device id QEMU version 1 machine id 0
kernel cmdline
CPUs: 1 x SUNW,UltraSPARC-IIi
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.1 built on Feb 26 2016 10:39
  Type 'help' for detailed information
Trying cdrom:f...
Not a bootable ELF image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000

Jumping to entry point 0000000000004000 for type 0000000000000005...
switching to new context: entry point 0x4000 stack 0x00000000ffe84a09

>> FreeBSD/sparc64 boot block
   Boot path:   /pci@1fe,0/pci-ata@5/ide1@8200/cdrom@0:f
   Boot loader: /boot/loader
Consoles: Open Firmware console

FreeBSD/sparc64 bootstrap loader, Revision 1.0
([email protected], Fri Mar 25 06:23:20 UTC 2016)
bootpath="/pci@1fe,0/pci-ata@5/ide1@8200/cdrom@0:a"
Loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0xbc4540+0xe62a0 syms=[0x8+0xcc060+0x8+0xbe0ae]

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
jumping to kernel entry at 0xc00a8000.
Copyright (c) 1992-2016 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 10.3-RELEASE #0 r297264: Fri Mar 25 06:26:08 UTC 2016

[email protected]:/usr/obj/sparc64.sparc64/usr/src/sys/GENERIC sparc64
gcc version 4.2.1 20070831 patched [FreeBSD]
real memory  = 536870912 (512 MB)
avail memory = 501080064 (477 MB)
cpu0: Sun Microsystems UltraSparc-IIi Processor (100.00 MHz CPU)
random: <Software, Yarrow> initialized
kbd0 at kbdmux0
nexus0: <Open Firmware Nexus device>
nexus0: <builtin>: incomplete
pcib0: <U2P UPA-PCI bridge> mem 0x1fe00000000-0x1fe01ffffff irq
2032,2030,2031,2021 on nexus0
pcib0: Sabre, impl 0, version 0, IGN 0x1f, bus A, 33MHz
pcib0: DVMA map: 0xc0000000 to 0xc3ffffff 8192 entries
pcib0: [GIANT-LOCKED]
pci0: <OFW PCI bus> on pcib0
pcib1: <APB PCI-PCI bridge> at device 1.0 on pci0
pci1: <OFW PCI bus> on pcib1
pcib2: <APB PCI-PCI bridge> at device 1.1 on pci0
pci2: <OFW PCI bus> on pcib2
ebus0: <PCI-EBus2 bridge> port 0x4000-0x7fff mem 0x3000000-0x3ffffff at
device 3.0 on pci0
vgapci0: <VGA-compatible display> mem
0x1000000-0x1ffffff,0x2000000-0x2000fff at device 2.0 on pci0
vgapci0: Boot video device
eeprom0: <EEPROM/clock> addr 0x1400002000-0x1400003fff on ebus0
eeprom0: model mk48t59
ebus0: <fdthree> addr 0 (no driver attached)
uart0: <16550 or compatible> addr 0x14000003f8-0x14000003ff irq 43 on ebus0
uart0: console (9600,n,8,1)
ebus0: <kb_ps2> addr 0x1400000060-0x1400000067 (no driver attached)
pci0: <network, ethernet> at device 4.0 (no driver attached)
atapci0: <SiI (CMD) 646U2 UDMA33 controller> port
0x8100-0x8107,0x8180-0x8183,0x8200-0x8207,0x8280-0x8283,0x8300-0x830f at
device 5.0 on pci0
ata2: <ATA channel> at channel 0 on atapci0
ata3: <ATA channel> at channel 1 on atapci0
nexus0: <syscons> type unknown (no driver attached)
Timecounter "tick" frequency 100000000 Hz quality 1000
Event timer "tick" frequency 100000000 Hz quality 1000
Timecounters tick every 1.000 msec
cd0 at ata3 bus 0 scbus1 target 0 lun 0
cd0: <QEMU QEMU DVD-ROM 2.5+> Removable CD-ROM SCSI device
cd0: Serial Number QM00003
cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes)
cd0: 193MB (99200 2048 byte sectors)
random: unblocking device.
Trying to mount root from cd9660:/dev/iso9660/10_3_RELEASE_SPARC64_BO
[ro]...
Entropy harvesting: interrupts ethernet point_to_point swi.
Starting file system checks:
Mounting local file systems:.
Writing entropy file:.
/etc/rc: WARNING: $hostname is not set -- see rc.conf(5).
Starting Network: lo0.
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
Starting devd.
add net fe80::: gateway ::1
add net ff02::: gateway ::1
add net ::ffff:0.0.0.0: gateway ::1
add net ::0.0.0.0: gateway ::1
Generating host.conf.
eval: cannot create /etc/host.conf: Read-only file system
eval: cannot create /etc/host.conf: Read-only file system
eval: cannot create /etc/host.conf: Read-only file system
Creating and/or trimming log files.
Starting syslogd.
ELF ldconfig path: /lib /usr/lib /usr/lib/compat
Clearing /tmp (X related).
Starting local daemons:
Welcome to FreeBSD!

Please choose the appropriate terminal type for your system.
Common console types are:
   ansi     Standard ANSI terminal
   vt100    VT100 or compatible terminal
   xterm    xterm terminal emulator (or compatible)
   cons25w  cons25w terminal

Console type [vt100]:


Sadly though it seems the latest 11.0-CURRENT-sparc64-20160408-r297692
doesn't boot because https://reviews.freebsd.org/D2791 hasn't yet been
applied to the 11.0 tree:


$ ./qemu-system-sparc64 -cdrom
FreeBSD-11.0-CURRENT-sparc64-20160408-r297692-disc1.iso -boot d -m 512
-nographic
OpenBIOS for Sparc64
Configuration device id QEMU version 1 machine id 0
kernel cmdline
CPUs: 1 x SUNW,UltraSPARC-IIi
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.1 built on Feb 26 2016 10:39
  Type 'help' for detailed information
Trying cdrom:f...
Not a bootable ELF image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000

Jumping to entry point 0000000000004000 for type 0000000000000005...
switching to new context: entry point 0x4000 stack 0x00000000ffe84a09

>> FreeBSD/sparc64 boot block
   Boot path:   /pci@1fe,0/pci-ata@5/ide1@8200/cdrom@0:f
   Boot loader: /boot/loader
Consoles: Open Firmware console

FreeBSD/sparc64 bootstrap loader, Revision 1.0
([email protected], Fri Apr  8 06:07:07 UTC 2016)
bootpath="/pci@1fe,0/pci-ata@5/ide1@8200/cdrom@0:a"
Loading /boot/defaults/loader.conf
/boot/kernel/kernel data=0xd1cc40+0x2137d8 syms=[0x8+0xdf260+0x8+0xcddb9]
\
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
jumping to kernel entry at 0xc00b0000.
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2016 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 11.0-CURRENT #0 r297692: Fri Apr  8 06:10:15 UTC 2016

[email protected]:/usr/obj/sparc64.sparc64/usr/src/sys/GENERIC sparc64
gcc version 4.2.1 20070831 patched [FreeBSD]
WARNING: WITNESS option enabled, expect reduced performance.
VT: init without driver.
real memory  = 536870912 (512 MB)
avail memory = 493920256 (471 MB)
cpu0: Sun Microsystems UltraSparc-IIi Processor (100.00 MHz CPU)
random: entropy device external interface
kbd0 at kbdmux0
nexus0: <Open Firmware Nexus device>
nexus0: <builtin>: incomplete
pcib0: <U2P UPA-PCI bridge> mem 0x1fe00000000-0x1fe01ffffff irq
2032,2030,2031,2021 on nexus0
panic: psycho_attach: could not allocate registers
cpuid = 0
KDB: stack backtrace:
vpanic() at vpanic+0x1b4
panic() at panic+0x20
psycho_attach() at psycho_attach+0x1a0
device_attach() at device_attach+0x5a8
device_probe_and_attach() at device_probe_and_attach+0x64
bus_generic_attach() at bus_generic_attach+0x10
nexus_attach() at nexus_attach+0x590
device_attach() at device_attach+0x5a8
device_probe_and_attach() at device_probe_and_attach+0x64
bus_generic_new_pass() at bus_generic_new_pass+0x11c
bus_set_pass() at bus_set_pass+0xf8
root_bus_configure() at root_bus_configure+0x8
configure() at configure+0x4
mi_startup() at mi_startup+0x1d0
btext() at btext+0x28
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      kdb_enter+0x80: ta              %xcc, 1
db>


ATB,

Mark.
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