12 files changed, 111 insertions, 19 deletions
diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
index 7ca92843c6..d41866a229 100644
--- a/include/hw/acpi/ich9.h
+++ b/include/hw/acpi/ich9.h
@@ -27,7 +27,7 @@
 #include "hw/acpi/pcihp.h"
 #include "hw/acpi/memory_hotplug.h"
 #include "hw/acpi/acpi_dev_interface.h"
-#include "hw/acpi/tco.h"
+#include "hw/acpi/ich9_tco.h"
 
 #define ACPI_PCIHP_ADDR_ICH9 0x0cc0
 
diff --git a/include/hw/acpi/tco.h b/include/hw/acpi/ich9_tco.h
index a1e0da8213..c4393caee0 100644
--- a/include/hw/acpi/tco.h
+++ b/include/hw/acpi/ich9_tco.h
@@ -1,5 +1,5 @@
 /*
- * QEMU ICH9 TCO emulation
+ * QEMU ICH9 TCO emulation (total cost of ownership)
  *
  * Copyright (c) 2015 Paulo Alcantara <pcacjr@zytor.com>
  *
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 90f1dd3aeb..d18d6d0073 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -379,6 +379,9 @@ struct MachineState {
     } \
     type_init(machine_initfn##_register_types)
 
+extern GlobalProperty hw_compat_7_2[];
+extern const size_t hw_compat_7_2_len;
+
 extern GlobalProperty hw_compat_7_1[];
 extern const size_t hw_compat_7_1_len;
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index c95333514e..991f905f5d 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -200,6 +200,9 @@ void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
 /* sgx.c */
 void pc_machine_init_sgx_epc(PCMachineState *pcms);
 
+extern GlobalProperty pc_compat_7_2[];
+extern const size_t pc_compat_7_2_len;
+
 extern GlobalProperty pc_compat_7_1[];
 extern const size_t pc_compat_7_1_len;
 
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 06e2d5f889..954f260f84 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -251,15 +251,7 @@ struct PCIDeviceClass {
     uint16_t subsystem_vendor_id;       /* only for header type = 0 */
     uint16_t subsystem_id;              /* only for header type = 0 */
 
-    /*
-     * pci-to-pci bridge or normal device.
-     * This doesn't mean pci host switch.
-     * When card bus bridge is supported, this would be enhanced.
-     */
-    bool is_bridge;
-
-    /* rom bar */
-    const char *romfile;
+    const char *romfile;                /* rom bar */
 };
 
 typedef void (*PCIINTxRoutingNotifier)(PCIDevice *dev);
diff --git a/include/hw/pci/pci_bridge.h b/include/hw/pci/pci_bridge.h
index ba4bafac7c..ca6caf487e 100644
--- a/include/hw/pci/pci_bridge.h
+++ b/include/hw/pci/pci_bridge.h
@@ -53,6 +53,7 @@ struct PCIBridgeWindows {
 
 #define TYPE_PCI_BRIDGE "base-pci-bridge"
 OBJECT_DECLARE_SIMPLE_TYPE(PCIBridge, PCI_BRIDGE)
+#define IS_PCI_BRIDGE(dev) object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)
 
 struct PCIBridge {
     /*< private >*/
diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h
index bc9f834fd1..e4386ebb20 100644
--- a/include/hw/pci/pci_ids.h
+++ b/include/hw/pci/pci_ids.h
@@ -169,7 +169,6 @@
 
 #define PCI_VENDOR_ID_DEC                0x1011
 #define PCI_DEVICE_ID_DEC_21143          0x0019
-#define PCI_DEVICE_ID_DEC_21154          0x0026
 
 #define PCI_VENDOR_ID_CIRRUS             0x1013
 
diff --git a/include/hw/virtio/vdpa-dev.h b/include/hw/virtio/vdpa-dev.h
new file mode 100644
index 0000000000..4dbf98195c
--- /dev/null
+++ b/include/hw/virtio/vdpa-dev.h
@@ -0,0 +1,43 @@
+/*
+ * Vhost Vdpa Device
+ *
+ * Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved.
+ *
+ * Authors:
+ *   Longpeng <longpeng2@huawei.com>
+ *
+ * Largely based on the "vhost-user-blk.h" implemented by:
+ *   Changpeng Liu <changpeng.liu@intel.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+#ifndef _VHOST_VDPA_DEVICE_H
+#define _VHOST_VDPA_DEVICE_H
+
+#include "hw/virtio/vhost.h"
+#include "hw/virtio/vhost-vdpa.h"
+#include "qom/object.h"
+
+
+#define TYPE_VHOST_VDPA_DEVICE "vhost-vdpa-device"
+OBJECT_DECLARE_SIMPLE_TYPE(VhostVdpaDevice, VHOST_VDPA_DEVICE)
+
+struct VhostVdpaDevice {
+    VirtIODevice parent_obj;
+    char *vhostdev;
+    int vhostfd;
+    int32_t bootindex;
+    uint32_t vdev_id;
+    uint32_t num_queues;
+    struct vhost_dev dev;
+    struct vhost_vdpa vdpa;
+    VirtQueue **virtqs;
+    uint8_t *config;
+    int config_size;
+    uint16_t queue_size;
+    bool started;
+    int (*post_init)(VhostVdpaDevice *v, Error **errp);
+};
+
+#endif
diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h
index 1111d85643..45b969a311 100644
--- a/include/hw/virtio/vhost-vdpa.h
+++ b/include/hw/virtio/vhost-vdpa.h
@@ -19,6 +19,12 @@
 #include "hw/virtio/virtio.h"
 #include "standard-headers/linux/vhost_types.h"
 
+/*
+ * ASID dedicated to map guest's addresses.  If SVQ is disabled it maps GPA to
+ * qemu's IOVA.  If SVQ is enabled it maps also the SVQ vring here
+ */
+#define VHOST_VDPA_GUEST_PA_ASID 0
+
 typedef struct VhostVDPAHostNotifier {
     MemoryRegion mr;
     void *addr;
@@ -29,10 +35,13 @@ typedef struct vhost_vdpa {
     int index;
     uint32_t msg_type;
     bool iotlb_batch_begin_sent;
+    uint32_t address_space_id;
     MemoryListener listener;
     struct vhost_vdpa_iova_range iova_range;
     uint64_t acked_features;
     bool shadow_vqs_enabled;
+    /* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */
+    bool shadow_data;
     /* IOVA mapping used by the Shadow Virtqueue */
     VhostIOVATree *iova_tree;
     GPtrArray *shadow_vqs;
@@ -42,8 +51,9 @@ typedef struct vhost_vdpa {
     VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
 } VhostVDPA;
 
-int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
-                       void *vaddr, bool readonly);
-int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, hwaddr size);
+int vhost_vdpa_dma_map(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
+                       hwaddr size, void *vaddr, bool readonly);
+int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
+                         hwaddr size);
 
 #endif
diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h
index 67a6807fac..1cafa0d776 100644
--- a/include/hw/virtio/vhost.h
+++ b/include/hw/virtio/vhost.h
@@ -88,13 +88,32 @@ struct vhost_dev {
     int vq_index_end;
     /* if non-zero, minimum required value for max_queues */
     int num_queues;
+    /**
+     * vhost feature handling requires matching the feature set
+     * offered by a backend which may be a subset of the total
+     * features eventually offered to the guest.
+     *
+     * @features: available features provided by the backend
+     * @acked_features: final negotiated features with front-end driver
+     *
+     * @backend_features: this is used in a couple of places to either
+     * store VHOST_USER_F_PROTOCOL_FEATURES to apply to
+     * VHOST_USER_SET_FEATURES or VHOST_NET_F_VIRTIO_NET_HDR. Its
+     * future use should be discouraged and the variable retired as
+     * its easy to confuse with the VirtIO backend_features.
+     */
     uint64_t features;
-    /** @acked_features: final set of negotiated features */
     uint64_t acked_features;
-    /** @backend_features: backend specific feature bits */
     uint64_t backend_features;
-    /** @protocol_features: final negotiated protocol features */
+
+    /**
+     * @protocol_features: is the vhost-user only feature set by
+     * VHOST_USER_SET_PROTOCOL_FEATURES. Protocol features are only
+     * negotiated if VHOST_USER_F_PROTOCOL_FEATURES has been offered
+     * by the backend (see @features).
+     */
     uint64_t protocol_features;
+
     uint64_t max_queues;
     uint64_t backend_cap;
     /* @started: is the vhost device started? */
diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/virtio-pci.h
index 938799e8f6..24fba1604b 100644
--- a/include/hw/virtio/virtio-pci.h
+++ b/include/hw/virtio/virtio-pci.h
@@ -151,6 +151,8 @@ struct VirtIOPCIProxy {
     bool disable_modern;
     bool ignore_backend_features;
     OnOffAuto disable_legacy;
+    /* Transitional device id */
+    uint16_t trans_devid;
     uint32_t class_code;
     uint32_t nvectors;
     uint32_t dfselect;
@@ -184,6 +186,9 @@ static inline void virtio_pci_disable_modern(VirtIOPCIProxy *proxy)
     proxy->disable_modern = true;
 }
 
+uint16_t virtio_pci_get_trans_devid(uint16_t device_id);
+uint16_t virtio_pci_get_class_id(uint16_t device_id);
+
 /*
  * virtio-input-pci: This extends VirtioPCIProxy.
  */
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index acfd4df125..24561e933a 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -93,6 +93,12 @@ enum virtio_device_endian {
     VIRTIO_DEVICE_ENDIAN_BIG,
 };
 
+/**
+ * struct VirtIODevice - common VirtIO structure
+ * @name: name of the device
+ * @status: VirtIO Device Status field
+ *
+ */
 struct VirtIODevice
 {
     DeviceState parent_obj;
@@ -100,9 +106,20 @@ struct VirtIODevice
     uint8_t status;
     uint8_t isr;
     uint16_t queue_sel;
-    uint64_t guest_features;
+    /**
+     * These fields represent a set of VirtIO features at various
+     * levels of the stack. @host_features indicates the complete
+     * feature set the VirtIO device can offer to the driver.
+     * @guest_features indicates which features the VirtIO driver has
+     * selected by writing to the feature register. Finally
+     * @backend_features represents everything supported by the
+     * backend (e.g. vhost) and could potentially be a subset of the
+     * total feature set offered by QEMU.
+     */
     uint64_t host_features;
+    uint64_t guest_features;
     uint64_t backend_features;
+
     size_t config_len;
     void *config;
     uint16_t config_vector;