| /* |
| * QEMU Common PCI Host bridge configuration data space access routines. |
| * |
| * Copyright (c) 2006 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| /* Worker routines for a PCI host controller that uses an {address,data} |
| register pair to access PCI configuration space. */ |
| |
| #ifndef PCI_HOST_H |
| #define PCI_HOST_H |
| |
| #include "hw/sysbus.h" |
| #include "qom/object.h" |
| |
| #define PCI_HOST_BYPASS_IOMMU "bypass-iommu" |
| |
| #define TYPE_PCI_HOST_BRIDGE "pci-host-bridge" |
| OBJECT_DECLARE_TYPE(PCIHostState, PCIHostBridgeClass, PCI_HOST_BRIDGE) |
| |
| struct PCIHostState { |
| SysBusDevice busdev; |
| |
| MemoryRegion conf_mem; |
| MemoryRegion data_mem; |
| MemoryRegion mmcfg; |
| uint32_t config_reg; |
| bool mig_enabled; |
| PCIBus *bus; |
| bool bypass_iommu; |
| |
| QLIST_ENTRY(PCIHostState) next; |
| }; |
| |
| struct PCIHostBridgeClass { |
| SysBusDeviceClass parent_class; |
| |
| const char *(*root_bus_path)(PCIHostState *, PCIBus *); |
| }; |
| |
| /* common internal helpers for PCI/PCIe hosts, cut off overflows */ |
| void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr, |
| uint32_t limit, uint32_t val, uint32_t len); |
| uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr, |
| uint32_t limit, uint32_t len); |
| |
| void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, unsigned len); |
| uint32_t pci_data_read(PCIBus *s, uint32_t addr, unsigned len); |
| |
| extern const MemoryRegionOps pci_host_conf_le_ops; |
| extern const MemoryRegionOps pci_host_conf_be_ops; |
| extern const MemoryRegionOps pci_host_data_le_ops; |
| extern const MemoryRegionOps pci_host_data_be_ops; |
| |
| #endif /* PCI_HOST_H */ |