maybe that's why I could not find it, are you sure that is true of UniN versions that support 2 CPUs?
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SMP for Qemu-syetem-ppc64( WIP ).
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yeah its only the earliest PowerMac3,1's that cant take dual CPU cards, buts its only a Northbridge stepping revision thing rather then a whole major version difference, later PowerMac3,1's and all other Uninorth 1.0 machines can (PowerMac3,3 G4 GigE and PowerMac5,1 G4 Cube for example)
but they all use the same Core99PE platform expert in Tiger (and so do other Uninorth 1.0 machines IIRC)
So I built a new x86_64 system with a Core 7 Ultra 265k and it beats out the Quad G5 in Geekbench 2 except for FPU performance:
Even with my Hard Float patch to help use the host FPU when possible it's still about 1/5th the killer G5 FPU scores.
I'm hoping to use PCI Passthrough to pass a X1950XT out of my Quad G5 and get some Gaming and OpenGL benchmarks but it's proving to be a challenge.
Balaton Zoltan made some patches for Openbios for words needed for the ATI FCode ROMs, but they never made it to the masters. Also there is issues with the BARs, some reason Balaton assumed 16MB would be enough and we need 256MB just for the RAM BAR of this card.
So I'm going to have to patch Openbios and mac99 to fix these issues.
Even with my Hard Float patch to help use the host FPU when possible it's still about 1/5th the killer G5 FPU scores.
I'm hoping to use PCI Passthrough to pass a X1950XT out of my Quad G5 and get some Gaming and OpenGL benchmarks but it's proving to be a challenge.
Balaton Zoltan made some patches for Openbios for words needed for the ATI FCode ROMs, but they never made it to the masters. Also there is issues with the BARs, some reason Balaton assumed 16MB would be enough and we need 256MB just for the RAM BAR of this card.
So I'm going to have to patch Openbios and mac99 to fix these issues.
I just did some quick and dirty tests to checkout if I had PCI Passthrough setup correctly on the host, just because qemu PC virtual machines are really the easiest way to test PCI Passthrough.
I tried qemu-system-x86 with kvm enabled and then pure emulation of a Pentium III with passthrough of the X1950XT( you can load the VBIOS from file in Qemu so no need to flash the FCode ROM that is on the device ).
Once I installed the drivers in XP SP3 it was all seamless. Quake 3 did the max of 1000FPS with KVM enabled and CPU set to Pentuim III. Without KVM, just pure tcg emulation Quake III did 79FPS in the time demo.
Game play was smooth with pure emulation in single player and sat right at the cap of 90FPS, but the time demo is much heaver with lots of bots and battle action.
So I don't know, as far as playing the Doom3 based games emulating Quad G4's with PCI Passthrough of the X1950 XT how FPS is going to fair in PowerPC emulation on a much heavier game like Doom3 or Prey.
I'm testing Qemu-system-x86 in Geekbech 2 now on XP to see how the scores match up with what the emulated G4's do in integer/FPU/Memory matchups.
I tried qemu-system-x86 with kvm enabled and then pure emulation of a Pentium III with passthrough of the X1950XT( you can load the VBIOS from file in Qemu so no need to flash the FCode ROM that is on the device ).
Once I installed the drivers in XP SP3 it was all seamless. Quake 3 did the max of 1000FPS with KVM enabled and CPU set to Pentuim III. Without KVM, just pure tcg emulation Quake III did 79FPS in the time demo.
Game play was smooth with pure emulation in single player and sat right at the cap of 90FPS, but the time demo is much heaver with lots of bots and battle action.
So I don't know, as far as playing the Doom3 based games emulating Quad G4's with PCI Passthrough of the X1950 XT how FPS is going to fair in PowerPC emulation on a much heavier game like Doom3 or Prey.
I'm testing Qemu-system-x86 in Geekbech 2 now on XP to see how the scores match up with what the emulated G4's do in integer/FPU/Memory matchups.
