Re: [Qemu-devel] [PATCH] initialize unit id of IDE bus

[Gleb Natapov <gleb@redhat.com>]

On Mon, Oct 25, 2010 at 04:29:35PM +0200, Markus Armbruster wrote:
> Gleb Natapov <gleb@redhat.com> writes:
> 
> > Without this patch both buses on PIIX3_IDE device have the same unit id.
> 
> Are you sure that's wrong?
> 
So how do I know which bus is it on PIIX3_IDE?

> As far as I can see, IDEBus member unit is the currently active unit,
> set by write to port 6 (in ide_ioport_write()) and cleared on reset (in
> ide_bus_reset()).
> 
> > Signed-off-by: Gleb Natapov <gleb@redhat.com>
> > diff --git a/hw/ide/cmd646.c b/hw/ide/cmd646.c
> > index ff80dd5..b2cbdbc 100644
> > --- a/hw/ide/cmd646.c
> > +++ b/hw/ide/cmd646.c
> > @@ -257,8 +257,8 @@ static int pci_cmd646_ide_initfn(PCIDevice *dev)
> >      pci_conf[PCI_INTERRUPT_PIN] = 0x01; // interrupt on pin 1
> >  
> >      irq = qemu_allocate_irqs(cmd646_set_irq, d, 2);
> > -    ide_bus_new(&d->bus[0], &d->dev.qdev);
> > -    ide_bus_new(&d->bus[1], &d->dev.qdev);
> > +    ide_bus_new(&d->bus[0], &d->dev.qdev, 0);
> > +    ide_bus_new(&d->bus[1], &d->dev.qdev, 1);
> >      ide_init2(&d->bus[0], irq[0]);
> >      ide_init2(&d->bus[1], irq[1]);
> >  
> > diff --git a/hw/ide/internal.h b/hw/ide/internal.h
> > index 4165543..3da93df 100644
> > --- a/hw/ide/internal.h
> > +++ b/hw/ide/internal.h
> > @@ -564,7 +564,7 @@ void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
> >  void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
> >  
> >  /* hw/ide/qdev.c */
> > -void ide_bus_new(IDEBus *idebus, DeviceState *dev);
> > +void ide_bus_new(IDEBus *idebus, DeviceState *dev, uint8_t unit);
> >  IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
> >  
> >  #endif /* HW_IDE_INTERNAL_H */
> > diff --git a/hw/ide/isa.c b/hw/ide/isa.c
> > index 163ffba..907d862 100644
> > --- a/hw/ide/isa.c
> > +++ b/hw/ide/isa.c
> > @@ -67,7 +67,7 @@ static int isa_ide_initfn(ISADevice *dev)
> >  {
> >      ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
> >  
> > -    ide_bus_new(&s->bus, &s->dev.qdev);
> > +    ide_bus_new(&s->bus, &s->dev.qdev, 0);
> >      ide_init_ioport(&s->bus, s->iobase, s->iobase2);
> >      isa_init_irq(dev, &s->irq, s->isairq);
> >      isa_init_ioport_range(dev, s->iobase, 8);
> > diff --git a/hw/ide/piix.c b/hw/ide/piix.c
> > index 07483e8..d0b04a3 100644
> > --- a/hw/ide/piix.c
> > +++ b/hw/ide/piix.c
> > @@ -129,8 +129,8 @@ static int pci_piix_ide_initfn(PCIIDEState *d)
> >  
> >      vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
> >  
> > -    ide_bus_new(&d->bus[0], &d->dev.qdev);
> > -    ide_bus_new(&d->bus[1], &d->dev.qdev);
> > +    ide_bus_new(&d->bus[0], &d->dev.qdev, 0);
> > +    ide_bus_new(&d->bus[1], &d->dev.qdev, 1);
> >      ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
> >      ide_init_ioport(&d->bus[1], 0x170, 0x376);
> >  
> > diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
> > index 0808760..1705a12 100644
> > --- a/hw/ide/qdev.c
> > +++ b/hw/ide/qdev.c
> > @@ -29,9 +29,10 @@ static struct BusInfo ide_bus_info = {
> >      .size  = sizeof(IDEBus),
> >  };
> >  
> > -void ide_bus_new(IDEBus *idebus, DeviceState *dev)
> > +void ide_bus_new(IDEBus *idebus, DeviceState *dev, uint8_t unit)
> >  {
> >      qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
> > +    idebus->unit = unit;
> >  }
> >  
> >  static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base)
> > diff --git a/hw/ide/via.c b/hw/ide/via.c
> > index b2c7cad..cc48b2b 100644
> > --- a/hw/ide/via.c
> > +++ b/hw/ide/via.c
> > @@ -158,8 +158,8 @@ static int vt82c686b_ide_initfn(PCIDevice *dev)
> >  
> >      vmstate_register(&dev->qdev, 0, &vmstate_ide_pci, d);
> >  
> > -    ide_bus_new(&d->bus[0], &d->dev.qdev);
> > -    ide_bus_new(&d->bus[1], &d->dev.qdev);
> > +    ide_bus_new(&d->bus[0], &d->dev.qdev, 0);
> > +    ide_bus_new(&d->bus[1], &d->dev.qdev, 1);
> >      ide_init2(&d->bus[0], isa_reserve_irq(14));
> >      ide_init2(&d->bus[1], isa_reserve_irq(15));
> >      ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
> > --
> > 			Gleb.

--
			Gleb.