Re: [Qemu-devel] [PATCH V2] hw/pci: disable pci-bridge's shpc by default

[Marcel Apfelbaum]

On 01/11/2017 01:46 PM, Marcel Apfelbaum wrote:
> The shpc component is optional while  ACPI hotplug is used
> for hot-plugging PCI devices into a PCI-PCI bridge.
> Disabling the shpc by default will make slot 0 usable at boot time
> and not only for hot-plug, without loosing any functionality.
> Older machines will have shpc enabled for compatibility reasons.
>
> Signed-off-by: Marcel Apfelbaum <address@hidden>
> ---
> v1 -> v2:
>  - Moved the compat property to HW_COMPAT_2_8

Hi Michael,
Can you please merge this?

Thanks,
Marcel

>  hw/pci-bridge/pci_bridge_dev.c | 2 +-
>  include/hw/compat.h            | 6 +++++-
>  2 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
> index 5dbd933..647ad80 100644
> --- a/hw/pci-bridge/pci_bridge_dev.c
> +++ b/hw/pci-bridge/pci_bridge_dev.c
> @@ -163,7 +163,7 @@ static Property pci_bridge_dev_properties[] = {
>      DEFINE_PROP_ON_OFF_AUTO(PCI_BRIDGE_DEV_PROP_MSI, PCIBridgeDev, msi,
>                              ON_OFF_AUTO_AUTO),
>      DEFINE_PROP_BIT(PCI_BRIDGE_DEV_PROP_SHPC, PCIBridgeDev, flags,
> -                    PCI_BRIDGE_DEV_F_SHPC_REQ, true),
> +                    PCI_BRIDGE_DEV_F_SHPC_REQ, false),
>      DEFINE_PROP_END_OF_LIST(),
>  };
>
> diff --git a/include/hw/compat.h b/include/hw/compat.h
> index 4fe44d1..428c127 100644
> --- a/include/hw/compat.h
> +++ b/include/hw/compat.h
> @@ -2,7 +2,11 @@
>  #define HW_COMPAT_H
>
>  #define HW_COMPAT_2_8 \
> -    /* empty */
> +    {\
> +        .driver   = "pci-bridge",\
> +        .property = "shpc",\
> +        .value    = "on",\
> +    },
>
>  #define HW_COMPAT_2_7 \
>      {\