Re: [Xen-devel] [PATCH 2/2] Move hardcoded initialization of xen-platform device.

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Tue, 18 Jun 2013, Paul Durrant wrote:
> Creation of the xen-platform device is currently hardcoded into machine
> type pc's initialization code, guarded by a test for the whether the xen
> accelerator is enabled. This patch moves the creation of xen-platform into
> the initialization code of the xenfv machine type. This maintains backwards
> compatibility for that machine type but allows more flexibility if another
> machine type is used with Xen HVM domains.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>


>  hw/i386/pc_piix.c |   10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index f96e0c2..c294138 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -179,9 +179,6 @@ static void pc_init1(MemoryRegion *system_memory,
>      pc_register_ferr_irq(gsi[13]);
>  
>      pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
> -    if (xen_enabled()) {
> -        pci_create_simple(pci_bus, -1, "xen-platform");
> -    }
>  
>      /* init basic PC hardware */
>      pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled());
> @@ -325,7 +322,14 @@ static void pc_init_isa(QEMUMachineInitArgs *args)
>  #ifdef CONFIG_XEN
>  static void pc_xen_hvm_init(QEMUMachineInitArgs *args)
>  {
> +    PCIBus *bus;
> +
>      pc_init_pci(args);
> +
> +    bus = pci_find_root_bus(0);
> +    if (bus != NULL) {
> +        pci_create_simple(bus, -1, "xen-platform");
> +    }
>  }
>  #endif



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