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PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for PCIe device
commit3be9d243b2
upstream. Since all PCI Express device Functions are required to implement the PCI Express Capability structure, Capabilities List bit in PCI Status Register must be hardwired to 1b. Capabilities Pointer register (which is already set by pci-bride-emul.c driver) is valid only when Capabilities List is set to 1b. Link: https://lore.kernel.org/r/20211124155944.1290-7-pali@kernel.org Fixes:23a5fba4d9
("PCI: Introduce PCI bridge emulated config space common logic") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -287,6 +287,7 @@ int pci_bridge_emul_init(struct pci_bridge_emul *bridge,
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if (bridge->has_pcie) {
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bridge->conf.capabilities_pointer = PCI_CAP_PCIE_START;
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bridge->conf.status |= cpu_to_le16(PCI_STATUS_CAP_LIST);
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bridge->pcie_conf.cap_id = PCI_CAP_ID_EXP;
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bridge->pcie_conf.cap |= cpu_to_le16(PCI_EXP_TYPE_ROOT_PORT << 4);
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bridge->pcie_cap_regs_behavior =
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