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hw/pci: Add pci_bus_add_fw_cfg_extra_pci_roots() helper

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pci_bus_add_fw_cfg_extra_pci_roots() calls the fw_cfg
API with PCI bus specific arguments.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20241206181352.6836-5-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2024-12-06 17:50:47 +01:00
parent 59c5eea5c7
commit 14f1f86d51
2 changed files with 19 additions and 0 deletions
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16
hw/pci/pci.c
View file

@ -217,6 +217,22 @@ static uint16_t pcibus_numa_node(PCIBus *bus)
return NUMA_NODE_UNASSIGNED;
}
bool pci_bus_add_fw_cfg_extra_pci_roots(FWCfgState *fw_cfg,
PCIBus *bus,
Error **errp)
{
Object *obj;
if (!bus) {
return true;
}
obj = OBJECT(bus);
return fw_cfg_add_file_from_generator(fw_cfg, obj->parent,
object_get_canonical_path_component(obj),
"etc/extra-pci-roots", errp);
}
static GByteArray *pci_bus_fw_cfg_gen_data(Object *obj, Error **errp)
{
PCIBus *bus = PCI_BUS(obj);

3
include/hw/pci/pci.h
View file

@ -297,6 +297,9 @@ int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
uint32_t pci_bus_get_slot_reserved_mask(PCIBus *bus);
void pci_bus_set_slot_reserved_mask(PCIBus *bus, uint32_t mask);
void pci_bus_clear_slot_reserved_mask(PCIBus *bus, uint32_t mask);
bool pci_bus_add_fw_cfg_extra_pci_roots(FWCfgState *fw_cfg,
PCIBus *bus,
Error **errp);
/* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
static inline int pci_swizzle(int slot, int pin)
{