Re: [Qemu-devel] [PATCH v3] hw/i386: Deprecate the machines pc-0.10 to pc-1.2

[Michael S. Tsirkin]

On Wed, Jul 12, 2017 at 11:51:21AM -0300, Eduardo Habkost wrote:
> On Wed, Jul 12, 2017 at 10:22:33AM +0200, Thomas Huth wrote:
> > We don't want to carry along old machine types forever. If we are able to
> > remove the pc machines up to 0.13 one day for example, this would allow
> > us to eventually kill the code for rombar=0 (i.e. where QEMU copies ROM
> > BARs directly to low memory). Everything up to pc-1.2 is also known to
> > have issues with migration.  So let's start with a deprecation message
> > for the old machine types so that the (hopefully) few users of these old
> > systems start switching over to newer machine types instead.
> > 
> > Signed-off-by: Thomas Huth <address@hidden>
> 
> Reviewed-by: Eduardo Habkost <address@hidden>
> 
> I suggest changing "-machine help" too.  Today it looks like this:
> 
>   Supported machines are:
>   pc-i440fx-2.9        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.8        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.7        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.6        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.5        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.4        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.3        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.2        Standard PC (i440FX + PIIX, 1996)
>   pc                   Standard PC (i440FX + PIIX, 1996) (alias of 
> pc-i440fx-2.10)
>   pc-i440fx-2.10       Standard PC (i440FX + PIIX, 1996) (default)
>   pc-i440fx-2.1        Standard PC (i440FX + PIIX, 1996)
>   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)
>   pc-q35-2.9           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.8           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.7           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.6           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.5           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.4           Standard PC (Q35 + ICH9, 2009)
>   q35                  Standard PC (Q35 + ICH9, 2009) (alias of pc-q35-2.10)
>   pc-q35-2.10          Standard PC (Q35 + ICH9, 2009)
>   isapc                ISA-only PC
>   none                 empty machine

Any chance we can sort them reasonably too?

> 
> It could be changed to something like this:
> 
>   Supported machines are:
>   pc-i440fx-2.9        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.8        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.7        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.6        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.5        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.4        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.3        Standard PC (i440FX + PIIX, 1996)
>   pc-i440fx-2.2        Standard PC (i440FX + PIIX, 1996)
>   pc                   Standard PC (i440FX + PIIX, 1996) (alias of 
> pc-i440fx-2.10)
>   pc-i440fx-2.10       Standard PC (i440FX + PIIX, 1996) (default)
>   pc-i440fx-2.1        Standard PC (i440FX + PIIX, 1996)
>   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-q35-2.9           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.8           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.7           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.6           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.5           Standard PC (Q35 + ICH9, 2009)
>   pc-q35-2.4           Standard PC (Q35 + ICH9, 2009)
>   q35                  Standard PC (Q35 + ICH9, 2009) (alias of pc-q35-2.10)
>   pc-q35-2.10          Standard PC (Q35 + ICH9, 2009)
>   isapc                ISA-only PC
>   none                 empty machine
> 
>   Deprecated machines: pc-1.2, pc-1.1, pc-1.0, pc-0.15, pc-0.14, pc-0.13,
>                        pc-0.12, pc-0.11, pc-0.10.
> 
> -- 
> Eduardo