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This moves these commands from MAINTAINERS section "QMP" to "PCI". Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20221201121133.3813857-3-armbru@redhat.com> [Commit message improved]pull/229/head
Markus Armbruster
4 years ago
4 changed files with 224 additions and 182 deletions
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#ifndef HW_PCI_PCI_INTERNAL_H |
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#define HW_PCI_PCI_INTERNAL_H |
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#include "qemu/queue.h" |
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typedef struct { |
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uint16_t class; |
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const char *desc; |
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const char *fw_name; |
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uint16_t fw_ign_bits; |
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} pci_class_desc; |
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typedef QLIST_HEAD(, PCIHostState) PCIHostStateList; |
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extern PCIHostStateList pci_host_bridges; |
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const pci_class_desc *get_class_desc(int class); |
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PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num); |
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#endif |
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@ -0,0 +1,199 @@ |
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/*
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* QMP commands related to PCI |
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* |
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* Copyright (c) 2004 Fabrice Bellard |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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#include "qemu/osdep.h" |
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#include "hw/pci/pci.h" |
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#include "hw/pci/pci_bridge.h" |
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#include "pci-internal.h" |
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#include "qapi/qapi-commands-pci.h" |
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static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num); |
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static PciMemoryRegionList *qmp_query_pci_regions(const PCIDevice *dev) |
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{ |
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PciMemoryRegionList *head = NULL, **tail = &head; |
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int i; |
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for (i = 0; i < PCI_NUM_REGIONS; i++) { |
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const PCIIORegion *r = &dev->io_regions[i]; |
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PciMemoryRegion *region; |
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if (!r->size) { |
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continue; |
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} |
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region = g_malloc0(sizeof(*region)); |
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if (r->type & PCI_BASE_ADDRESS_SPACE_IO) { |
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region->type = g_strdup("io"); |
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} else { |
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region->type = g_strdup("memory"); |
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region->has_prefetch = true; |
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region->prefetch = !!(r->type & PCI_BASE_ADDRESS_MEM_PREFETCH); |
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region->has_mem_type_64 = true; |
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region->mem_type_64 = !!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64); |
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} |
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region->bar = i; |
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region->address = r->addr; |
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region->size = r->size; |
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QAPI_LIST_APPEND(tail, region); |
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} |
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return head; |
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} |
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static PciBridgeInfo *qmp_query_pci_bridge(PCIDevice *dev, PCIBus *bus, |
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int bus_num) |
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{ |
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PciBridgeInfo *info; |
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PciMemoryRange *range; |
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info = g_new0(PciBridgeInfo, 1); |
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info->bus = g_new0(PciBusInfo, 1); |
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info->bus->number = dev->config[PCI_PRIMARY_BUS]; |
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info->bus->secondary = dev->config[PCI_SECONDARY_BUS]; |
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info->bus->subordinate = dev->config[PCI_SUBORDINATE_BUS]; |
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range = info->bus->io_range = g_new0(PciMemoryRange, 1); |
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range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_IO); |
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range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_IO); |
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range = info->bus->memory_range = g_new0(PciMemoryRange, 1); |
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range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); |
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range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); |
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range = info->bus->prefetchable_range = g_new0(PciMemoryRange, 1); |
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range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); |
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range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); |
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if (dev->config[PCI_SECONDARY_BUS] != 0) { |
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PCIBus *child_bus = pci_find_bus_nr(bus, |
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dev->config[PCI_SECONDARY_BUS]); |
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if (child_bus) { |
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info->has_devices = true; |
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info->devices = qmp_query_pci_devices(child_bus, |
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dev->config[PCI_SECONDARY_BUS]); |
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} |
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} |
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return info; |
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} |
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static PciDeviceInfo *qmp_query_pci_device(PCIDevice *dev, PCIBus *bus, |
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int bus_num) |
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{ |
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const pci_class_desc *desc; |
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PciDeviceInfo *info; |
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uint8_t type; |
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int class; |
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info = g_new0(PciDeviceInfo, 1); |
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info->bus = bus_num; |
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info->slot = PCI_SLOT(dev->devfn); |
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info->function = PCI_FUNC(dev->devfn); |
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info->class_info = g_new0(PciDeviceClass, 1); |
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class = pci_get_word(dev->config + PCI_CLASS_DEVICE); |
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info->class_info->q_class = class; |
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desc = get_class_desc(class); |
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if (desc->desc) { |
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info->class_info->desc = g_strdup(desc->desc); |
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} |
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info->id = g_new0(PciDeviceId, 1); |
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info->id->vendor = pci_get_word(dev->config + PCI_VENDOR_ID); |
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info->id->device = pci_get_word(dev->config + PCI_DEVICE_ID); |
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info->regions = qmp_query_pci_regions(dev); |
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info->qdev_id = g_strdup(dev->qdev.id ? dev->qdev.id : ""); |
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info->irq_pin = dev->config[PCI_INTERRUPT_PIN]; |
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if (dev->config[PCI_INTERRUPT_PIN] != 0) { |
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info->has_irq = true; |
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info->irq = dev->config[PCI_INTERRUPT_LINE]; |
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} |
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type = dev->config[PCI_HEADER_TYPE] & ~PCI_HEADER_TYPE_MULTI_FUNCTION; |
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if (type == PCI_HEADER_TYPE_BRIDGE) { |
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info->pci_bridge = qmp_query_pci_bridge(dev, bus, bus_num); |
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} else if (type == PCI_HEADER_TYPE_NORMAL) { |
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info->id->has_subsystem = info->id->has_subsystem_vendor = true; |
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info->id->subsystem = pci_get_word(dev->config + PCI_SUBSYSTEM_ID); |
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info->id->subsystem_vendor = |
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pci_get_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID); |
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} else if (type == PCI_HEADER_TYPE_CARDBUS) { |
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info->id->has_subsystem = info->id->has_subsystem_vendor = true; |
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info->id->subsystem = pci_get_word(dev->config + PCI_CB_SUBSYSTEM_ID); |
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info->id->subsystem_vendor = |
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pci_get_word(dev->config + PCI_CB_SUBSYSTEM_VENDOR_ID); |
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} |
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return info; |
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} |
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static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num) |
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{ |
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PciDeviceInfoList *head = NULL, **tail = &head; |
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PCIDevice *dev; |
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int devfn; |
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for (devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { |
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dev = bus->devices[devfn]; |
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if (dev) { |
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QAPI_LIST_APPEND(tail, qmp_query_pci_device(dev, bus, bus_num)); |
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} |
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} |
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return head; |
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} |
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static PciInfo *qmp_query_pci_bus(PCIBus *bus, int bus_num) |
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{ |
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PciInfo *info = NULL; |
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bus = pci_find_bus_nr(bus, bus_num); |
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if (bus) { |
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info = g_malloc0(sizeof(*info)); |
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info->bus = bus_num; |
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info->devices = qmp_query_pci_devices(bus, bus_num); |
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} |
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return info; |
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} |
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PciInfoList *qmp_query_pci(Error **errp) |
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{ |
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PciInfoList *head = NULL, **tail = &head; |
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PCIHostState *host_bridge; |
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QLIST_FOREACH(host_bridge, &pci_host_bridges, next) { |
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QAPI_LIST_APPEND(tail, |
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qmp_query_pci_bus(host_bridge->bus, |
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pci_bus_num(host_bridge->bus))); |
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} |
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return head; |
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} |
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