diff options
Diffstat (limited to 'hw/pci/pci-qmp-cmds.c')
| -rw-r--r-- | hw/pci/pci-qmp-cmds.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/hw/pci/pci-qmp-cmds.c b/hw/pci/pci-qmp-cmds.c new file mode 100644 index 0000000..5d9f481 --- /dev/null +++ b/hw/pci/pci-qmp-cmds.c @@ -0,0 +1,199 @@ +/* + * QMP commands related to PCI + * + * Copyright (c) 2004 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. + */ + +#include "qemu/osdep.h" +#include "hw/pci/pci.h" +#include "hw/pci/pci_bridge.h" +#include "pci-internal.h" +#include "qapi/qapi-commands-pci.h" + +static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num); + +static PciMemoryRegionList *qmp_query_pci_regions(const PCIDevice *dev) +{ + PciMemoryRegionList *head = NULL, **tail = &head; + int i; + + for (i = 0; i < PCI_NUM_REGIONS; i++) { + const PCIIORegion *r = &dev->io_regions[i]; + PciMemoryRegion *region; + + if (!r->size) { + continue; + } + + region = g_malloc0(sizeof(*region)); + + if (r->type & PCI_BASE_ADDRESS_SPACE_IO) { + region->type = g_strdup("io"); + } else { + region->type = g_strdup("memory"); + region->has_prefetch = true; + region->prefetch = !!(r->type & PCI_BASE_ADDRESS_MEM_PREFETCH); + region->has_mem_type_64 = true; + region->mem_type_64 = !!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64); + } + + region->bar = i; + region->address = r->addr; + region->size = r->size; + + QAPI_LIST_APPEND(tail, region); + } + + return head; +} + +static PciBridgeInfo *qmp_query_pci_bridge(PCIDevice *dev, PCIBus *bus, + int bus_num) +{ + PciBridgeInfo *info; + PciMemoryRange *range; + + info = g_new0(PciBridgeInfo, 1); + + info->bus = g_new0(PciBusInfo, 1); + info->bus->number = dev->config[PCI_PRIMARY_BUS]; + info->bus->secondary = dev->config[PCI_SECONDARY_BUS]; + info->bus->subordinate = dev->config[PCI_SUBORDINATE_BUS]; + + range = info->bus->io_range = g_new0(PciMemoryRange, 1); + range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_IO); + range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_IO); + + range = info->bus->memory_range = g_new0(PciMemoryRange, 1); + range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); + range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); + + range = info->bus->prefetchable_range = g_new0(PciMemoryRange, 1); + range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); + range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); + + if (dev->config[PCI_SECONDARY_BUS] != 0) { + PCIBus *child_bus = pci_find_bus_nr(bus, + dev->config[PCI_SECONDARY_BUS]); + if (child_bus) { + info->has_devices = true; + info->devices = qmp_query_pci_devices(child_bus, + dev->config[PCI_SECONDARY_BUS]); + } + } + + return info; +} + +static PciDeviceInfo *qmp_query_pci_device(PCIDevice *dev, PCIBus *bus, + int bus_num) +{ + const pci_class_desc *desc; + PciDeviceInfo *info; + uint8_t type; + int class; + + info = g_new0(PciDeviceInfo, 1); + info->bus = bus_num; + info->slot = PCI_SLOT(dev->devfn); + info->function = PCI_FUNC(dev->devfn); + + info->class_info = g_new0(PciDeviceClass, 1); + class = pci_get_word(dev->config + PCI_CLASS_DEVICE); + info->class_info->q_class = class; + desc = get_class_desc(class); + if (desc->desc) { + info->class_info->desc = g_strdup(desc->desc); + } + + info->id = g_new0(PciDeviceId, 1); + info->id->vendor = pci_get_word(dev->config + PCI_VENDOR_ID); + info->id->device = pci_get_word(dev->config + PCI_DEVICE_ID); + info->regions = qmp_query_pci_regions(dev); + info->qdev_id = g_strdup(dev->qdev.id ? dev->qdev.id : ""); + + info->irq_pin = dev->config[PCI_INTERRUPT_PIN]; + if (dev->config[PCI_INTERRUPT_PIN] != 0) { + info->has_irq = true; + info->irq = dev->config[PCI_INTERRUPT_LINE]; + } + + type = dev->config[PCI_HEADER_TYPE] & ~PCI_HEADER_TYPE_MULTI_FUNCTION; + if (type == PCI_HEADER_TYPE_BRIDGE) { + info->pci_bridge = qmp_query_pci_bridge(dev, bus, bus_num); + } else if (type == PCI_HEADER_TYPE_NORMAL) { + info->id->has_subsystem = info->id->has_subsystem_vendor = true; + info->id->subsystem = pci_get_word(dev->config + PCI_SUBSYSTEM_ID); + info->id->subsystem_vendor = + pci_get_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID); + } else if (type == PCI_HEADER_TYPE_CARDBUS) { + info->id->has_subsystem = info->id->has_subsystem_vendor = true; + info->id->subsystem = pci_get_word(dev->config + PCI_CB_SUBSYSTEM_ID); + info->id->subsystem_vendor = + pci_get_word(dev->config + PCI_CB_SUBSYSTEM_VENDOR_ID); + } + + return info; +} + +static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num) +{ + PciDeviceInfoList *head = NULL, **tail = &head; + PCIDevice *dev; + int devfn; + + for (devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { + dev = bus->devices[devfn]; + if (dev) { + QAPI_LIST_APPEND(tail, qmp_query_pci_device(dev, bus, bus_num)); + } + } + + return head; +} + +static PciInfo *qmp_query_pci_bus(PCIBus *bus, int bus_num) +{ + PciInfo *info = NULL; + + bus = pci_find_bus_nr(bus, bus_num); + if (bus) { + info = g_malloc0(sizeof(*info)); + info->bus = bus_num; + info->devices = qmp_query_pci_devices(bus, bus_num); + } + + return info; +} + +PciInfoList *qmp_query_pci(Error **errp) +{ + PciInfoList *head = NULL, **tail = &head; + PCIHostState *host_bridge; + + QLIST_FOREACH(host_bridge, &pci_host_bridges, next) { + QAPI_LIST_APPEND(tail, + qmp_query_pci_bus(host_bridge->bus, + pci_bus_num(host_bridge->bus))); + } + + return head; +} |