diff options
Diffstat (limited to 'src/fw/pciinit.c')
| -rw-r--r-- | src/fw/pciinit.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c index 7b8aab7c..c31c2fa0 100644 --- a/src/fw/pciinit.c +++ b/src/fw/pciinit.c @@ -645,9 +645,8 @@ pci_region_create_entry(struct pci_bus *bus, struct pci_device *dev, return entry; } -static int pci_bus_hotplug_support(struct pci_bus *bus) +static int pci_bus_hotplug_support(struct pci_bus *bus, u8 pcie_cap) { - u8 pcie_cap = pci_find_capability(bus->bus_dev, PCI_CAP_ID_EXP, 0); u8 shpc_cap; if (pcie_cap) { @@ -727,7 +726,8 @@ static int pci_bios_check_devices(struct pci_bus *busses) */ parent = &busses[0]; int type; - int hotplug_support = pci_bus_hotplug_support(s); + u8 pcie_cap = pci_find_capability(s->bus_dev, PCI_CAP_ID_EXP, 0); + int hotplug_support = pci_bus_hotplug_support(s, pcie_cap); for (type = 0; type < PCI_REGION_TYPE_COUNT; type++) { u64 align = (type == PCI_REGION_TYPE_IO) ? PCI_BRIDGE_IO_MIN : PCI_BRIDGE_MEM_MIN; @@ -736,7 +736,8 @@ static int pci_bios_check_devices(struct pci_bus *busses) if (pci_region_align(&s->r[type]) > align) align = pci_region_align(&s->r[type]); u64 sum = pci_region_sum(&s->r[type]); - if (!sum && hotplug_support) + int resource_optional = pcie_cap && (type == PCI_REGION_TYPE_IO); + if (!sum && hotplug_support && !resource_optional) sum = align; /* reserve min size for hot-plug */ u64 size = ALIGN(sum, align); int is64 = pci_bios_bridge_region_is64(&s->r[type], |