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pci: Add generic PCIe host bridge

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With simple exposure of MMFG, ioport window, mmio window and an IRQ line we
can successfully create a workable PCIe host bridge that can be mapped anywhere
and only needs to get described to the OS using whatever means it likes.

This patch implements such a "generic" host bridge. It handles 4 legacy IRQ
lines. MSIs need to be handled external to the host bridge.

This device is particularly useful for the "pci-host-ecam-generic" driver in
Linux.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Tested-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alexander Graf 2015-02-13 05:46:07 +00:00 • committed by Peter Maydell
parent bf439db499
commit 4d8fde1126
3 changed files with 211 additions and 0 deletions
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1
hw/pci-host/Makefile.objs
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@ -15,3 +15,4 @@ common-obj-$(CONFIG_PCI_APB) += apb.o
common-obj-$(CONFIG_FULONG) += bonito.o
common-obj-$(CONFIG_PCI_PIIX) += piix.o
common-obj-$(CONFIG_PCI_Q35) += q35.o
common-obj-$(CONFIG_PCI_GENERIC) += gpex.o