not to pester anyone but it's back.
moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -version QEMU emulator version 4.0.91 Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom 'nvram1': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # strace qemu-system-sparc64 -machine niagara ... ... ... access("nvram1", R_OK) = -1 ENOENT (No such file or directory) access("/usr/local/share/qemu-firmware/nvram1", R_OK) = -1 ENOENT (No such file or directory) access("/usr/local/share/qemu/nvram1", R_OK) = -1 ENOENT (No such file or directory) open("nvram1", O_RDONLY) = -1 ENOENT (No such file or directory) fstat(2, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0 write(2, "Could not open option rom 'nvram"..., 62Could not open option rom 'nvram1': No such file or directory ) = 62 write(2, "qemu-system-sparc64: Unable to l"..., 62qemu-system-sparc64: Unable to load a firmware for -M niagara ) = 62 exit_group(1) = ? +++ exited with 1 +++ nvram1 isnt on my system, but i can do this to see what else isnt there: moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/nvram1 moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom '1up-md.bin': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/1up-md.bin moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom '1up-hv.bin': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/1up-hv.bin moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom 'reset.bin': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/reset.bin moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom 'q.bin': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/q.bin moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara Could not open option rom 'openboot.bin': No such file or directory qemu-system-sparc64: Unable to load a firmware for -M niagara moo-PowerEdge-R710 Downloads # touch /usr/local/share/qemu/openboot.bin moo-PowerEdge-R710 Downloads # qemu-system-sparc64 -machine niagara qemu: fatal: Trap 0x0010 while trap level (6) >= MAXTL (6), Error state pc: 000000fff0000020 npc: 000000fff0000024 %g0-3: 0000000000000000 0000000000000000 0000000008000000 0000000000000000 %g4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %o0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %o4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %l0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %l4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %i0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %i4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f32: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f48: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f56: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 pstate: 00000034 ccr: 00 (icc: ---- xcc: ----) asi: 00 tl: 6 pil: 0 gl: 2 tbr: 0000000000000000 hpstate: 0000000000000004 htba: 0000000000000000 cansave: 0 canrestore: 0 otherwin: 0 wstate: 0 cleanwin: 0 cwp: 7 fsr: 0000000000000000 y: 0000000000000000 fprs: 0000000000000000 Aborted moo-PowerEdge-R710 Downloads # -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1670170 Title: `qemu-system-sparc64 -M Niagara` Aborted (core dumped) Status in QEMU: Fix Released Bug description: > qemu-system-sparc64 -M Niagara qemu: fatal: Trap 0x0064 while trap level (6) >= MAXTL (6), Error state pc: 0000000000004c80 npc: 0000000000004c84 %g0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %g4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %o0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %o4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %l0-3: 0000000007f00000 000001ff00000000 000001fff0080000 0000000000000000 %l4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %i0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %i4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f32: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f48: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 %f56: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 pstate: 00000414 ccr: 44 (icc: -Z-- xcc: -Z--) asi: 00 tl: 6 pil: 0 cansave: 6 canrestore: 0 otherwin: 0 wstate: 0 cleanwin: 6 cwp: 7 fsr: 0000000000000000 y: 0000000000000000 fprs: 0000000000000000 Aborted (core dumped) > qemu-system-sparc64 -M help Supported machines are: Niagara Sun4v platform, Niagara none empty machine sun4u Sun4u platform (default) sun4v Sun4v platform > qemu-system-sparc64 -version QEMU emulator version 2.8.0(Virtualization:Staging / SLE_12_SP2) from https://build.opensuse.org/package/show/Virtualization:Staging/qemu on openSUSE Leap 42.2. 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