Re: [Xen-devel] [PATCH] xen: Fix xenpv machine initialisation

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 7 Nov 2016, Anthony PERARD wrote:
> When using QEMU for Xen PV guest, QEMU abort with:
> xen-common.c:118:xen_init: Object 0x7f2b8325dcb0 is not an instance of type 
> generic-pc-machine
> 
> This is because the machine 'xenpv' also use accel=xen.
> 
> This fix 021746c131cdfeab9d82ff918795a9f18d20d7ae
> 
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

What about moving the acpi_build_enabled initialization to
xen_hvm_init?


> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> CC: Eduardo Habkost <ehabkost@xxxxxxxxxx>
> ---
>  xen-common.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/xen-common.c b/xen-common.c
> index bacf962..22683b0 100644
> --- a/xen-common.c
> +++ b/xen-common.c
> @@ -115,10 +115,12 @@ static void xen_change_state_handler(void *opaque, int 
> running,
>  
>  static int xen_init(MachineState *ms)
>  {
> -    PCMachineState *pcms = PC_MACHINE(ms);
> +    if (object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE)) {
> +        PCMachineState *pcms = PC_MACHINE(ms);
>  
> -    /* Disable ACPI build because Xen handles it */
> -    pcms->acpi_build_enabled = false;
> +        /* Disable ACPI build because Xen handles it */
> +        pcms->acpi_build_enabled = false;
> +    }
>  
>      xen_xc = xc_interface_open(0, 0, 0);
>      if (xen_xc == NULL) {
> -- 
> Anthony PERARD
> 

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