Re: [Qemu-devel] [PATCH for-2.0] acpi: Fixed incorrect ACPI generation for pci bridges

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

On Thu, Mar 27, 2014 at 05:35:36PM +0200, Marcel Apfelbaum wrote:
> Commit 8dcf525abc5dff785251a881f9764dd961065c0d appended
> description for all occupied non hotpluggable PCI slots.
> However the bridge devices are already added to SSDT,
> adding them again will create an incorrect SSDT table.
> 
> Fixed by skipping the pci bridge devices, marking them as 'system'.
> 
> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>

Applied.
I tweaked the commit log and comment a bit.

> ---
>  hw/i386/acpi-build.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 7ecfd70..60abb57 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -841,7 +841,8 @@ static void build_pci_bus_end(PCIBus *bus, void *bus_state)
>          pc = PCI_DEVICE_GET_CLASS(pdev);
>          dc = DEVICE_GET_CLASS(pdev);
>  
> -        if (pc->class_id == PCI_CLASS_BRIDGE_ISA) {
> +        if (pc->class_id == PCI_CLASS_BRIDGE_ISA ||
> +            pc->is_bridge) { /* DSDT or SSDT above */
>              set_bit(slot, slot_device_system);
>          }
>  
> -- 
> 1.8.3.1