pci: Move QMP commands to new hw/pci/pci-qmp-cmds.c

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]

4 files changed, 224 insertions, 182 deletions

diff --git a/hw/pci/meson.build b/hw/pci/meson.build
index 5aff7ed..40721f1 100644
--- a/hw/pci/meson.build
+++ b/hw/pci/meson.build
@@ -5,6 +5,7 @@ pci_ss.add(files(
   'pci.c',
   'pci_bridge.c',
   'pci_host.c',
+  'pci-qmp-cmds.c',
   'pcie_sriov.c',
   'shpc.c',
   'slotid_cap.c'
diff --git a/hw/pci/pci-internal.h b/hw/pci/pci-internal.h
new file mode 100644
index 0000000..4903a26
--- /dev/null
+++ b/hw/pci/pci-internal.h
@@ -0,0 +1,20 @@
+#ifndef HW_PCI_PCI_INTERNAL_H
+#define HW_PCI_PCI_INTERNAL_H
+
+#include "qemu/queue.h"
+
+typedef struct {
+    uint16_t class;
+    const char *desc;
+    const char *fw_name;
+    uint16_t fw_ign_bits;
+} pci_class_desc;
+
+typedef QLIST_HEAD(, PCIHostState) PCIHostStateList;
+
+extern PCIHostStateList pci_host_bridges;
+
+const pci_class_desc *get_class_desc(int class);
+PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num);
+
+#endif
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;
+}
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index d70a567..7310a82 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -47,8 +47,8 @@
 #include "hw/hotplug.h"
 #include "hw/boards.h"
 #include "qapi/error.h"
-#include "qapi/qapi-commands-pci.h"
 #include "qemu/cutils.h"
+#include "pci-internal.h"
 
 //#define DEBUG_PCI
 #ifdef DEBUG_PCI
@@ -234,7 +234,6 @@ static const TypeInfo cxl_bus_info = {
     .class_init = pcie_bus_class_init,
 };
 
-static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num);
 static void pci_update_mappings(PCIDevice *d);
 static void pci_irq_handler(void *opaque, int irq_num, int level);
 static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom, Error **);
@@ -243,7 +242,7 @@ static void pci_del_option_rom(PCIDevice *pdev);
 static uint16_t pci_default_sub_vendor_id = PCI_SUBVENDOR_ID_REDHAT_QUMRANET;
 static uint16_t pci_default_sub_device_id = PCI_SUBDEVICE_ID_QEMU;
 
-static QLIST_HEAD(, PCIHostState) pci_host_bridges;
+PCIHostStateList pci_host_bridges;
 
 int pci_bar(PCIDevice *d, int reg)
 {
@@ -1662,13 +1661,6 @@ int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin)
 /***********************************************************/
 /* monitor info on PCI */
 
-typedef struct {
-    uint16_t class;
-    const char *desc;
-    const char *fw_name;
-    uint16_t fw_ign_bits;
-} pci_class_desc;
-
 static const pci_class_desc pci_class_descriptions[] =
 {
     { 0x0001, "VGA controller", "display"},
@@ -1776,7 +1768,7 @@ void pci_for_each_device(PCIBus *bus, int bus_num,
     }
 }
 
-static const pci_class_desc *get_class_desc(int class)
+const pci_class_desc *get_class_desc(int class)
 {
     const pci_class_desc *desc;
 
@@ -1788,176 +1780,6 @@ static const pci_class_desc *get_class_desc(int class)
     return desc;
 }
 
-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;
-}
-
 /* Initialize a PCI NIC.  */
 PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus,
                                const char *default_model,
@@ -2106,7 +1928,7 @@ static bool pci_root_bus_in_range(PCIBus *bus, int bus_num)
     return false;
 }
 
-static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num)
+PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num)
 {
     PCIBus *sec;