Re: [Qemu-devel] [PATCH 1/6] i82378/i82374: do not create DMA controller twice

["Andreas Färber" <afaerber@suse.de>]

Am 17.03.2012 15:39, schrieb Hervé Poussineau:
> This fixes a crash in PReP emulation when using DMA controller to access floppy drive.
> 
> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>

Reviewed-by: Andreas Färber <afaerber@suse.de>

Andreas

> ---
>  hw/i82374.c |    5 ++++-
>  hw/i82378.c |    5 +++--
>  2 files changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/i82374.c b/hw/i82374.c
> index 67298a3..4a922c3 100644
> --- a/hw/i82374.c
> +++ b/hw/i82374.c
> @@ -38,6 +38,7 @@ do { fprintf(stderr, "i82374 ERROR: " fmt , ## __VA_ARGS__); } while (0)
>  
>  typedef struct I82374State {
>      uint8_t commands[8];
> +    qemu_irq out;
>  } I82374State;
>  
>  static const VMStateDescription vmstate_i82374 = {
> @@ -99,7 +100,7 @@ static uint32_t i82374_read_descriptor(void *opaque, uint32_t nport)
>  
>  static void i82374_init(I82374State *s)
>  {
> -    DMA_init(1, NULL);
> +    DMA_init(1, &s->out);
>      memset(s->commands, 0, sizeof(s->commands));
>  }
>  
> @@ -132,6 +133,8 @@ static int i82374_isa_init(ISADevice *dev)
>  
>      i82374_init(s);
>  
> +    qdev_init_gpio_out(&dev->qdev, &s->out, 1);
> +
>      return 0;
>  }
>  
> diff --git a/hw/i82378.c b/hw/i82378.c
> index faad1a3..9b11d90 100644
> --- a/hw/i82378.c
> +++ b/hw/i82378.c
> @@ -170,6 +170,7 @@ static void i82378_init(DeviceState *dev, I82378State *s)
>  {
>      ISABus *isabus = DO_UPCAST(ISABus, qbus, qdev_get_child_bus(dev, "isa.0"));
>      ISADevice *pit;
> +    ISADevice *isa;
>      qemu_irq *out0_irq;
>  
>      /* This device has:
> @@ -199,8 +200,8 @@ static void i82378_init(DeviceState *dev, I82378State *s)
>      pcspk_init(isabus, pit);
>  
>      /* 2 82C37 (dma) */
> -    DMA_init(1, &s->out[1]);
> -    isa_create_simple(isabus, "i82374");
> +    isa = isa_create_simple(isabus, "i82374");
> +    qdev_connect_gpio_out(&isa->qdev, 0, s->out[1]);
>  
>      /* timer */
>      isa_create_simple(isabus, "mc146818rtc");

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