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Date: Wed, 23 Jan 2019 09:23:49 -0500
From: "Michael S. Tsirkin" <mst@redhat.com>
Message-ID: <20190123092224-mutt-send-email-mst@kernel.org>
References: <20190123065618.3520-1-yang.zhong@intel.com>
	<20190123065618.3520-30-yang.zhong@intel.com>
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Subject: Re: [Qemu-devel] [RFC PATCH v4 29/44] hw/pci/Makefile.objs: make
 pcie configurable
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To: Yang Zhong <yang.zhong@intel.com>
Cc: qemu-devel@nongnu.org, pbonzini@redhat.com, thuth@redhat.com, peter.maydell@linaro.org, ehabkost@redhat.com, sameo@linux.intel.com

On Wed, Jan 23, 2019 at 02:56:03PM +0800, Yang Zhong wrote:
> Make pcie splited from pci and make it configurable.
> 
> Signed-off-by: Yang Zhong <yang.zhong@intel.com>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> ---
>  default-configs/pci.mak | 1 +
>  hw/pci/Kconfig          | 3 +++
>  hw/pci/Makefile.objs    | 5 +++--
>  3 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/default-configs/pci.mak b/default-configs/pci.mak
> index f7b3690bbd..b17b456b1e 100644
> --- a/default-configs/pci.mak
> +++ b/default-configs/pci.mak
> @@ -1,4 +1,5 @@
>  CONFIG_PCI=y
> +CONFIG_PCI_EXPRESS=y
>  # For now, CONFIG_IDE_CORE requires ISA, so we enable it here
>  CONFIG_ISA_BUS=y
>  CONFIG_VIRTIO_PCI=y
> diff --git a/hw/pci/Kconfig b/hw/pci/Kconfig
> index d3d2205577..81533b9dc0 100644
> --- a/hw/pci/Kconfig
> +++ b/hw/pci/Kconfig
> @@ -1,2 +1,5 @@
>  config PCI
>      bool
> +
> +config PCI_EXPRESS
> +    bool

Hmm this allows PCIE without PCI.
Should PCI_EXPRESS select PCI?

It's selected itself so can't depend on PCI.


> diff --git a/hw/pci/Makefile.objs b/hw/pci/Makefile.objs
> index 9f905e6344..d30eb32cbb 100644
> --- a/hw/pci/Makefile.objs
> +++ b/hw/pci/Makefile.objs
> @@ -2,8 +2,9 @@ common-obj-$(CONFIG_PCI) += pci.o pci_bridge.o
>  common-obj-$(CONFIG_PCI) += msix.o msi.o
>  common-obj-$(CONFIG_PCI) += shpc.o
>  common-obj-$(CONFIG_PCI) += slotid_cap.o
> -common-obj-$(CONFIG_PCI) += pci_host.o pcie_host.o
> -common-obj-$(CONFIG_PCI) += pcie.o pcie_aer.o pcie_port.o
> +common-obj-$(CONFIG_PCI) += pci_host.o
> +common-obj-$(CONFIG_PCI_EXPRESS) += pcie.o pcie_aer.o
> +common-obj-$(CONFIG_PCI_EXPRESS) += pcie_port.o pcie_host.o
>  
>  common-obj-$(call lnot,$(CONFIG_PCI)) += pci-stub.o
>  common-obj-$(CONFIG_ALL) += pci-stub.o
> -- 
> 2.17.1