Re: [PATCH] pci-assign: Fix transition MSI->INTx

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

On Tue, Jan 04, 2011 at 10:04:30PM +0100, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> Make sure to re-register the IRQ of an assigned device as INTx when the
> guest disables MSI[X] mode again.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

Acked-by: Michael S. Tsirkin <mst@redhat.com>

> ---
>  hw/device-assignment.c |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/hw/device-assignment.c b/hw/device-assignment.c
> index f6410f8..fce7567 100644
> --- a/hw/device-assignment.c
> +++ b/hw/device-assignment.c
> @@ -1192,7 +1192,10 @@ static void assigned_dev_update_msi(PCIDevice *pci_dev, unsigned int ctrl_pos)
>          if (kvm_assign_irq(kvm_context, &assigned_irq_data) < 0)
>              perror("assigned_dev_enable_msi: assign irq");
>  
> +        assigned_dev->girq = -1;
>          assigned_dev->irq_requested_type = assigned_irq_data.flags;
> +    } else {
> +        assign_irq(assigned_dev);
>      }
>  }
>  #endif
> @@ -1332,7 +1335,10 @@ static void assigned_dev_update_msix(PCIDevice *pci_dev, unsigned int ctrl_pos)
>              perror("assigned_dev_enable_msix: assign irq");
>              return;
>          }
> +        assigned_dev->girq = -1;
>          assigned_dev->irq_requested_type = assigned_irq_data.flags;
> +    } else {
> +        assign_irq(assigned_dev);
>      }
>  }
>  #endif
> -- 
> 1.7.1
> --
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