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pci/pcie_port: Add pci_find_port_by_pn()

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Simple function to search a PCIBus to find a port by
it's port number.

CXL interleave decoding uses the port number as a target
so it is necessary to locate the port when doing interleave
decoding.

Signed-off-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220429144110.25167-31-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jonathan Cameron 2022-04-29 15:40:55 +01:00 • committed by Michael S. Tsirkin
parent fc1e01e009
commit aa970ed586
2 changed files with 27 additions and 0 deletions
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2
include/hw/pci/pcie_port.h
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@ -39,6 +39,8 @@ struct PCIEPort {
void pcie_port_init_reg(PCIDevice *d);
PCIDevice *pcie_find_port_by_pn(PCIBus *bus, uint8_t pn);
#define TYPE_PCIE_SLOT "pcie-slot"
OBJECT_DECLARE_SIMPLE_TYPE(PCIESlot, PCIE_SLOT)