Re: [PATCH v2 12/13] hw/arm/raspi: Add the Raspberry Pi B+ machine

[Igor Mammedov <imammedo@redhat.com>]

On Tue, 18 Feb 2020 10:35:43 +0100
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

> Cc'ing Eduardo/Igor.
> 
> On 2/18/20 9:48 AM, Luc Michel wrote:
> > On 2/17/20 12:45 PM, Philippe Mathieu-Daudé wrote:  
> >>    $ qemu-system-arm -M raspi1b -serial stdio \
> >>        -kernel raspberrypi/firmware/boot/kernel.img \
> >>        -dtb raspberrypi/firmware/boot/bcm2708-rpi-b.dtb \
> >>        -append 'printk.time=0 earlycon=pl011,0x20201000 console=ttyAMA0'
> >>    [    0.000000] Booting Linux on physical CPU 0x0
> >>    [    0.000000] Linux version 4.19.69+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1261 Tue Sep 3 20:21:01 BST 2019
> >>    [    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
> >>    [    0.000000] CPU: VIPT aliasing data cache, unknown instruction cache
> >>    [    0.000000] OF: fdt: Machine model: Raspberry Pi Model B
> >>    [    0.000000] earlycon: pl11 at MMIO 0x20201000 (options '')
> >>    [    0.000000] bootconsole [pl11] enabled
> >>    [    0.000000] Memory policy: Data cache writeback
> >>    [    0.000000] cma: Reserved 8 MiB at 0x1b800000
> >>    [    0.000000] random: get_random_bytes called from start_kernel+0x8c/0x49c with crng_init=0
> >>    [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 113680
> >>    [    0.000000] Kernel command line: printk.time=0 earlycon=pl011,0x20201000 console=ttyAMA0
> >>    Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
> >>    Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
> >>    Memory: 434380K/458752K available (6971K kernel code, 635K rwdata, 2080K rodata, 464K init, 797K bss, 16180K reserved, 8192K cma-reserved)
> >>    ...
> >>
> >> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> >> ---
> >>   hw/arm/raspi.c | 13 +++++++++++++
> >>   1 file changed, 13 insertions(+)
> >>
> >> diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
> >> index 3537a329ac..2d9f4e3085 100644
> >> --- a/hw/arm/raspi.c
> >> +++ b/hw/arm/raspi.c
> >> @@ -324,6 +324,15 @@ static void raspi_machine_class_common_init(MachineClass *mc,
> >>       mc->default_ram_size = board_ram_size(board_rev);
> >>   };
> >>   
> >> +static void raspi1b_machine_class_init(ObjectClass *oc, void *data)
> >> +{
> >> +    MachineClass *mc = MACHINE_CLASS(oc);
> >> +    RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc);
> >> +
> >> +    rmc->board_rev = 0x900032;
> >> +    raspi_machine_class_common_init(mc, rmc->board_rev);
> >> +};
> >> +
> >>   static void raspi2b_machine_class_init(ObjectClass *oc, void *data)
> >>   {
> >>       MachineClass *mc = MACHINE_CLASS(oc);
> >> @@ -348,6 +357,10 @@ static void raspi3b_machine_class_init(ObjectClass *oc, void *data)
> >>   
> >>   static const TypeInfo raspi_machine_types[] = {
> >>       {
> >> +        .name           = MACHINE_TYPE_NAME("raspi1b"),  
> > If it's the B+ model, why not call it raspi1b+ ?  
> 
> I thought about it (and prefer it), but I'm not sure this can have some 
> side-effect.
> 
> Eduardo, Igor, is that OK to use a '+' in a machine name?
> 
> So far the names used match [a-zA-Z0-9-].
That was my impression as well.
How about "raspi1-plus"

 
> >   
> >> +        .parent         = TYPE_RASPI_MACHINE,
> >> +        .class_init     = raspi1b_machine_class_init,
> >> +    }, {
> >>           .name           = MACHINE_TYPE_NAME("raspi2b"),
> >>           .parent         = TYPE_RASPI_MACHINE,
> >>           .class_init     = raspi2b_machine_class_init,
> >>  
> >   
>