Re: [Qemu-devel] [PATCH 2/2] machine_parse(): list supported machine types in their registration order

["Michael S. Tsirkin" <mst@redhat.com>]

On Mon, Sep 22, 2014 at 02:04:44PM +0200, Andreas Färber wrote:
> Am 22.09.2014 um 13:26 schrieb Laszlo Ersek:
> > Based on the registration order captured in the previous patch, we sort
> > the ad-hoc list printed for
> > 
> >   qemu-system-XXXX -M \?
> 
> Agree that the order is worth sanitizing. I would however argue that
> registration order is not entirely stable either if you think of non-PC
> cases where there's dozens of source files registering one machine each.
> I would therefore propose alphabetical order as we do for QOM'ified CPUs.

Did you try?

Indeed for x86 sort -r on the list looks kind of ok:
q35                  Standard PC (Q35 + ICH9, 2009) (alias of pc-q35-2.1)
pc                   Standard PC (i440FX + PIIX, 1996) (alias of pc-i440fx-2.1)
pc-q35-2.1           Standard PC (Q35 + ICH9, 2009)
pc-q35-2.0           Standard PC (Q35 + ICH9, 2009)
pc-q35-1.7           Standard PC (Q35 + ICH9, 2009)
pc-q35-1.6           Standard PC (Q35 + ICH9, 2009)
pc-q35-1.5           Standard PC (Q35 + ICH9, 2009)
pc-q35-1.4           Standard PC (Q35 + ICH9, 2009)
pc-i440fx-2.1        Standard PC (i440FX + PIIX, 1996) (default)
pc-i440fx-2.0        Standard PC (i440FX + PIIX, 1996)
pc-i440fx-1.7        Standard PC (i440FX + PIIX, 1996)
pc-i440fx-1.6        Standard PC (i440FX + PIIX, 1996)
pc-i440fx-1.5        Standard PC (i440FX + PIIX, 1996)
pc-i440fx-1.4        Standard PC (i440FX + PIIX, 1996)
pc-1.3               Standard PC (i440FX + PIIX, 1996)
pc-1.2               Standard PC (i440FX + PIIX, 1996)
pc-1.1               Standard PC (i440FX + PIIX, 1996)
pc-1.0               Standard PC (i440FX + PIIX, 1996)
pc-0.15              Standard PC (i440FX + PIIX, 1996)
pc-0.14              Standard PC (i440FX + PIIX, 1996)
pc-0.13              Standard PC (i440FX + PIIX, 1996)
pc-0.12              Standard PC (i440FX + PIIX, 1996)
pc-0.11              Standard PC (i440FX + PIIX, 1996)
pc-0.10              Standard PC (i440FX + PIIX, 1996)
none                 empty machine
isapc                ISA-only PC

But this is just luck.
Not so on other targets. Laszlo mentions aarch:

z2                   Zipit Z2 (PXA27x)
xilinx-zynq-a9       Xilinx Zynq Platform Baseboard for Cortex-A9
virt                 ARM Virtual Machine
vexpress-a9          ARM Versatile Express for Cortex-A9
vexpress-a15         ARM Versatile Express for Cortex-A15
versatilepb          ARM Versatile/PB (ARM926EJ-S)
versatileab          ARM Versatile/AB (ARM926EJ-S)
verdex               Gumstix Verdex (PXA270)
tosa                 Tosa PDA (PXA255)
terrier              Terrier PDA (PXA270)
sx1-v1               Siemens SX1 (OMAP310) V1
sx1                  Siemens SX1 (OMAP310) V2
spitz                Spitz PDA (PXA270)
smdkc210             Samsung SMDKC210 board (Exynos4210)
realview-pbx-a9      ARM RealView Platform Baseboard Explore for Cortex-A9
realview-pb-a8       ARM RealView Platform Baseboard for Cortex-A8
realview-eb-mpcore   ARM RealView Emulation Baseboard (ARM11MPCore)
realview-eb          ARM RealView Emulation Baseboard (ARM926EJ-S)
nuri                 Samsung NURI board (Exynos4210)
none                 empty machine
n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)
n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
musicpal             Marvell 88w8618 / MusicPal (ARM926EJ-S)
midway               Calxeda Midway (ECX-2000)
mainstone            Mainstone II (PXA27x)
lm3s811evb           Stellaris LM3S811EVB
lm3s6965evb          Stellaris LM3S6965EVB
kzm                  ARM KZM Emulation Baseboard (ARM1136)
integratorcp         ARM Integrator/CP (ARM926EJ-S)
highbank             Calxeda Highbank (ECX-1000)
cubieboard           cubietech cubieboard
connex               Gumstix Connex (PXA255)
collie               Collie PDA (SA-1110)
cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
canon-a1100          Canon PowerShot A1100 IS
borzoi               Borzoi PDA (PXA270)
akita                Akita PDA (PXA270)


I guess it's almost reasonable if we special-case the empty
machine somehow, but we also need to sort numbers properly
a15 should be before a9?


-- 
MST