diff --git a/hw/pci-host/Kconfig b/hw/pci-host/Kconfig
index 2b5f7d58cc..b02a9d1454 100644
--- a/hw/pci-host/Kconfig
+++ b/hw/pci-host/Kconfig
@@ -77,3 +77,7 @@ config MV64361
     bool
     select PCI
     select I8259
+
+config PCI_EXPRESS_7A
+    bool
+    select PCI_EXPRESS
diff --git a/hw/pci-host/ls7a.c b/hw/pci-host/ls7a.c
new file mode 100644
index 0000000000..90b9fe4830
--- /dev/null
+++ b/hw/pci-host/ls7a.c
@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * QEMU Loongson 7A1000 North Bridge Emulation
+ *
+ * Copyright (C) 2021 Loongson Technology Corporation Limited
+ */
+
+#include "qemu/osdep.h"
+
+#include "hw/pci/pci.h"
+#include "hw/pci/pcie_host.h"
+#include "qapi/error.h"
+#include "hw/irq.h"
+#include "hw/pci/pci_bridge.h"
+#include "hw/pci/pci_bus.h"
+#include "sysemu/reset.h"
+#include "hw/pci-host/ls7a.h"
+#include "migration/vmstate.h"
+
+static const VMStateDescription vmstate_ls7a_pcie = {
+    .name = "LS7A_PCIE",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_PCI_DEVICE(dev, LS7APCIState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void pci_ls7a_config_write(void *opaque, hwaddr addr,
+                                  uint64_t val, unsigned size)
+{
+    pci_data_write(opaque, addr, val, size);
+}
+
+static uint64_t pci_ls7a_config_read(void *opaque,
+                                     hwaddr addr, unsigned size)
+{
+    uint64_t val;
+
+    val = pci_data_read(opaque, addr, size);
+
+    return val;
+}
+
+static const MemoryRegionOps pci_ls7a_config_ops = {
+    .read = pci_ls7a_config_read,
+    .write = pci_ls7a_config_write,
+    .valid = {
+        .min_access_size = 1,
+        .max_access_size = 4,
+    },
+    .impl = {
+        .min_access_size = 1,
+        .max_access_size = 4,
+    },
+    .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void ls7a_pciehost_realize(DeviceState *dev, Error **errp)
+{
+    LS7APCIEHost *pciehost = LS7A_PCIE_HOST_BRIDGE(dev);
+    PCIExpressHost *e = PCIE_HOST_BRIDGE(dev);
+    PCIHostState *phb = PCI_HOST_BRIDGE(e);
+
+    phb->bus = pci_register_root_bus(dev, "pcie.0", NULL,
+                                     NULL, pciehost,
+                                     get_system_memory(), get_system_io(),
+                                     PCI_DEVFN(1, 0), 128, TYPE_PCIE_BUS);
+
+    memory_region_init_io(&pciehost->pci_conf, OBJECT(dev),
+                          &pci_ls7a_config_ops, phb->bus,
+                          "ls7a_pci_conf", HT1LO_PCICFG_SIZE);
+    memory_region_add_subregion(get_system_memory(), HT1LO_PCICFG_BASE,
+                                &pciehost->pci_conf);
+
+    /* Add ls7a pci-io */
+    memory_region_init_alias(&pciehost->pci_io, OBJECT(dev), "ls7a-pci-io",
+                             get_system_io(), 0, LS7A_PCI_IO_SIZE);
+    memory_region_add_subregion(get_system_memory(), LS7A_PCI_IO_BASE,
+                                &pciehost->pci_io);
+
+    pcie_host_mmcfg_update(e, true, LS_PCIECFG_BASE, LS_PCIECFG_SIZE);
+}
+
+PCIBus *ls7a_init(MachineState *machine, qemu_irq *pic)
+{
+    DeviceState *dev;
+    PCIHostState *phb;
+    LS7APCIState *pbs;
+    LS7APCIEHost *pciehost;
+    PCIDevice *pci_dev;
+    PCIExpressHost *e;
+
+    dev = qdev_new(TYPE_LS7A_PCIE_HOST_BRIDGE);
+    e = PCIE_HOST_BRIDGE(dev);
+    phb = PCI_HOST_BRIDGE(e);
+    pciehost = LS7A_PCIE_HOST_BRIDGE(dev);
+    pciehost->pic = pic;
+
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+
+    pci_dev = pci_new(PCI_DEVFN(0, 0), TYPE_LS7A_PCIE);
+    pbs = LS7A_PCIE(pci_dev);
+    pbs->pciehost = pciehost;
+    pbs->pciehost->pci_dev = pbs;
+
+    pci_realize_and_unref(pci_dev, phb->bus, &error_fatal);
+
+    return phb->bus;
+}
+
+static void ls7a_reset(DeviceState *qdev)
+{
+    uint64_t wmask;
+    wmask = ~(-1);
+    PCIDevice *dev = PCI_DEVICE(qdev);
+
+    pci_set_word(dev->config + PCI_STATUS, 0x0010);
+    pci_set_word(dev->wmask + PCI_STATUS, wmask & 0xffff);
+    pci_set_word(dev->cmask + PCI_STATUS, 0xffff);
+    pci_set_byte(dev->config + PCI_HEADER_TYPE, 0x1);
+    pci_set_byte(dev->wmask + PCI_HEADER_TYPE, wmask & 0xff);
+    pci_set_byte(dev->cmask + PCI_HEADER_TYPE, 0xff);
+    pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0014);
+    pci_set_word(dev->wmask + PCI_SUBSYSTEM_VENDOR_ID, wmask & 0xffff);
+    pci_set_word(dev->cmask + PCI_SUBSYSTEM_VENDOR_ID, 0xffff);
+    pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x7a00);
+    pci_set_word(dev->wmask + PCI_SUBSYSTEM_ID, wmask & 0xffff);
+    pci_set_word(dev->cmask + PCI_SUBSYSTEM_ID, 0xffff);
+    pci_set_byte(dev->config + PCI_CAPABILITY_LIST, 0x40);
+    pci_set_byte(dev->wmask + PCI_CAPABILITY_LIST, wmask & 0xff);
+    pci_set_byte(dev->cmask + PCI_CAPABILITY_LIST, 0xff);
+}
+
+static void ls7a_pcie_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+    k->vendor_id = 0x0014;
+    k->device_id = 0x7a00;
+    k->revision = 0x00;
+    k->class_id = PCI_CLASS_BRIDGE_HOST;
+    dc->reset = ls7a_reset;
+    dc->desc = "LS7A1000 PCIE Host bridge";
+    dc->vmsd = &vmstate_ls7a_pcie;
+    /*
+     * PCI-facing part of the host bridge, not usable without the
+     * host-facing part, which can't be device_add'ed, yet.
+     */
+    dc->user_creatable = false;
+}
+
+static const TypeInfo ls7a_pcie_device_info = {
+    .name          = TYPE_LS7A_PCIE,
+    .parent        = TYPE_PCI_DEVICE,
+    .instance_size = sizeof(LS7APCIState),
+    .class_init    = ls7a_pcie_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+        { },
+    },
+};
+
+static void ls7a_pciehost_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    dc->realize = ls7a_pciehost_realize;
+    dc->fw_name = "pci";
+    dc->user_creatable = false;
+}
+
+static const TypeInfo ls7a_pciehost_info = {
+    .name          = TYPE_LS7A_PCIE_HOST_BRIDGE,
+    .parent        = TYPE_PCIE_HOST_BRIDGE,
+    .instance_size = sizeof(LS7APCIEHost),
+    .class_init    = ls7a_pciehost_class_init,
+};
+
+static void ls7a_register_types(void)
+{
+    type_register_static(&ls7a_pciehost_info);
+    type_register_static(&ls7a_pcie_device_info);
+}
+
+type_init(ls7a_register_types)
diff --git a/hw/pci-host/meson.build b/hw/pci-host/meson.build
index 4c4f39c15c..c4955455fd 100644
--- a/hw/pci-host/meson.build
+++ b/hw/pci-host/meson.build
@@ -11,6 +11,7 @@ pci_ss.add(when: 'CONFIG_PCI_SABRE', if_true: files('sabre.c'))
 pci_ss.add(when: 'CONFIG_XEN_IGD_PASSTHROUGH', if_true: files('xen_igd_pt.c'))
 pci_ss.add(when: 'CONFIG_REMOTE_PCIHOST', if_true: files('remote.c'))
 pci_ss.add(when: 'CONFIG_SH_PCI', if_true: files('sh_pci.c'))
+pci_ss.add(when: 'CONFIG_PCI_EXPRESS_7A', if_true: files('ls7a.c'))
 
 # PPC devices
 pci_ss.add(when: 'CONFIG_RAVEN_PCI', if_true: files('raven.c'))
diff --git a/include/hw/pci-host/ls7a.h b/include/hw/pci-host/ls7a.h
new file mode 100644
index 0000000000..6b5ba3b442
--- /dev/null
+++ b/include/hw/pci-host/ls7a.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * QEMU LoongArch CPU
+ *
+ * Copyright (c) 2021 Loongson Technology Corporation Limited
+ */
+
+#ifndef HW_LS7A_H
+#define HW_LS7A_H
+
+#include "hw/pci/pci.h"
+#include "hw/pci/pcie_host.h"
+#include "hw/pci-host/pam.h"
+#include "qemu/units.h"
+#include "qemu/range.h"
+#include "qom/object.h"
+
+#define HT1LO_PCICFG_BASE        0x1a000000
+#define HT1LO_PCICFG_SIZE        0x02000000
+
+#define LS_PCIECFG_BASE          0x20000000
+#define LS_PCIECFG_SIZE          0x08000000
+
+#define LS7A_PCI_IO_BASE        0x18000000UL
+#define LS7A_PCI_IO_SIZE        0x00010000
+typedef struct LS7APCIState LS7APCIState;
+typedef struct LS7APCIEHost {
+    PCIExpressHost parent_obj;
+    LS7APCIState *pci_dev;
+    qemu_irq *pic;
+    MemoryRegion pci_conf;
+    MemoryRegion pci_io;
+} LS7APCIEHost;
+
+struct LS7APCIState {
+    PCIDevice dev;
+    LS7APCIEHost *pciehost;
+};
+
+#define TYPE_LS7A_PCIE_HOST_BRIDGE "ls7a1000-pciehost"
+OBJECT_DECLARE_SIMPLE_TYPE(LS7APCIEHost, LS7A_PCIE_HOST_BRIDGE)
+
+#define TYPE_LS7A_PCIE "ls7a1000_pcie"
+OBJECT_DECLARE_SIMPLE_TYPE(LS7APCIState, LS7A_PCIE)
+
+PCIBus *ls7a_init(MachineState *machine, qemu_irq *irq);
+#endif /* HW_LS7A_H */
