QEMU includes some models of old Arm machine types which are a bit problematic for us because: * they're written in a very old way that uses numerous APIs that we would like to get away from (eg they don't use qdev, they use qemu_system_reset_request(), they use vmstate_register(), etc) * they've been that way for a decade plus and nobody particularly has stepped up to try to modernise the code (beyond some occasional work here and there) * we often don't have test cases for them, which means that if we do try to do the necessary refactoring work on them we have no idea if they even still work at all afterwards
All these machine types are also of hardware that has largely passed away into history and where I would not be surprised to find that e.g. the Linux kernel support was never tested on real hardware any more. So I would like to explore whether we can deprecate-and-drop some or all of them. This would let us delete the code entirely rather than spending a long time trying to bring it up to scratch for a probably very small to nonexistent userbase. The aim of this email is to see if anybody is still using any of these and would be upset if they went away. Reports of "I tried to use this machine type and it's just broken" are also interesting as they would strongly suggest that the machine has no real users and can be removed. The machines I have in mind are: PXA2xx machines: akita Sharp SL-C1000 (Akita) PDA (PXA270) borzoi Sharp SL-C3100 (Borzoi) PDA (PXA270) connex Gumstix Connex (PXA255) mainstone Mainstone II (PXA27x) spitz Sharp SL-C3000 (Spitz) PDA (PXA270) terrier Sharp SL-C3200 (Terrier) PDA (PXA270) tosa Sharp SL-6000 (Tosa) PDA (PXA255) verdex Gumstix Verdex Pro XL6P COMs (PXA270) z2 Zipit Z2 (PXA27x) OMAP1 machines: cheetah Palm Tungsten|E aka. Cheetah PDA (OMAP310) sx1 Siemens SX1 (OMAP310) V2 sx1-v1 Siemens SX1 (OMAP310) V1 OMAP2 machines: n800 Nokia N800 tablet aka. RX-34 (OMAP2420) n810 Nokia N810 tablet aka. RX-44 (OMAP2420) The one SA1110 machine: collie Sharp SL-5500 (Collie) PDA (SA-1110) Obviously if we can remove all the machines that used a given SoC, that's much more effective than if we just delete one or two. I don't have any test images for the SA1110 or OMAP1 machines, so those are the ones I am most keen to be able to drop. I do have test images for a few of the pxa2xx and the OMAP2 machines. thanks -- PMM
