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qemu-kvm/kvm-virtio-Helper-for-registering-virtio-device-types.patch

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* Mon Jan 21 2019 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 3.1.0-5.el8 - kvm-virtio-Helper-for-registering-virtio-device-types.patch [bz#1648023] - kvm-virtio-Provide-version-specific-variants-of-virtio-P.patch [bz#1648023] - kvm-globals-Allow-global-properties-to-be-optional.patch [bz#1648023] - kvm-virtio-Make-disable-legacy-disable-modern-compat-pro.patch [bz#1648023] - kvm-aarch64-Add-virt-rhel8.0.0-machine-type-for-ARM.patch [bz#1656504] - kvm-aarch64-Set-virt-rhel8.0.0-max_cpus-to-512.patch [bz#1656504] - kvm-aarch64-Use-256MB-ECAM-region-by-default.patch [bz#1656504] - Resolves: bz#1648023 (Provide separate device types for transitional virtio PCI devices - Fast Train) - Resolves: bz#1656504 (Machine types for qemu-kvm based on rebase to qemu-3.1 (aarch64))
2019-01-21 21:16:33 +00:00
From 8a7371fb25d2072d60b029eb092a083cfa064afb Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Wed, 16 Jan 2019 23:18:16 +0000
Subject: [PATCH 1/7] virtio: Helper for registering virtio device types
RH-Author: Eduardo Habkost <ehabkost@redhat.com>
Message-id: <20190116231819.29310-2-ehabkost@redhat.com>
Patchwork-id: 84027
O-Subject: [RHEL-8.0/AV qemu-kvm PATCH 1/4] virtio: Helper for registering virtio device types
Bugzilla: 1648023
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
Introduce a helper for registering different flavours of virtio
devices. Convert code to use the helper, but keep only the
existing generic types. Transitional and non-transitional device
types will be added by another patch.
Backport conflicts:
hw/virtio/virtio-pci.c: because our downstream tree doesn't
have commit e6a74868d92f ("build-sys: add --disable-vhost-user")
Acked-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit a4ee4c8baa37154f42b4dc6a13fee79268d15238)
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/display/virtio-gpu-pci.c | 7 +-
hw/display/virtio-vga.c | 7 +-
hw/virtio/virtio-crypto-pci.c | 7 +-
hw/virtio/virtio-pci.c | 231 ++++++++++++++++++++++++++++++------------
hw/virtio/virtio-pci.h | 54 ++++++++++
5 files changed, 228 insertions(+), 78 deletions(-)
diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c
index cece4aa..faf76a8 100644
--- a/hw/display/virtio-gpu-pci.c
+++ b/hw/display/virtio-gpu-pci.c
@@ -69,9 +69,8 @@ static void virtio_gpu_initfn(Object *obj)
TYPE_VIRTIO_GPU);
}
-static const TypeInfo virtio_gpu_pci_info = {
- .name = TYPE_VIRTIO_GPU_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_gpu_pci_info = {
+ .generic_name = TYPE_VIRTIO_GPU_PCI,
.instance_size = sizeof(VirtIOGPUPCI),
.instance_init = virtio_gpu_initfn,
.class_init = virtio_gpu_pci_class_init,
@@ -79,6 +78,6 @@ static const TypeInfo virtio_gpu_pci_info = {
static void virtio_gpu_pci_register_types(void)
{
- type_register_static(&virtio_gpu_pci_info);
+ virtio_pci_types_register(&virtio_gpu_pci_info);
}
type_init(virtio_gpu_pci_register_types)
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index ab2e369..8db4d91 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -207,9 +207,8 @@ static void virtio_vga_inst_initfn(Object *obj)
TYPE_VIRTIO_GPU);
}
-static TypeInfo virtio_vga_info = {
- .name = TYPE_VIRTIO_VGA,
- .parent = TYPE_VIRTIO_PCI,
+static VirtioPCIDeviceTypeInfo virtio_vga_info = {
+ .generic_name = TYPE_VIRTIO_VGA,
.instance_size = sizeof(struct VirtIOVGA),
.instance_init = virtio_vga_inst_initfn,
.class_init = virtio_vga_class_init,
@@ -217,7 +216,7 @@ static TypeInfo virtio_vga_info = {
static void virtio_vga_register_types(void)
{
- type_register_static(&virtio_vga_info);
+ virtio_pci_types_register(&virtio_vga_info);
}
type_init(virtio_vga_register_types)
diff --git a/hw/virtio/virtio-crypto-pci.c b/hw/virtio/virtio-crypto-pci.c
index bf64996..8cc3fa3 100644
--- a/hw/virtio/virtio-crypto-pci.c
+++ b/hw/virtio/virtio-crypto-pci.c
@@ -64,9 +64,8 @@ static void virtio_crypto_initfn(Object *obj)
TYPE_VIRTIO_CRYPTO);
}
-static const TypeInfo virtio_crypto_pci_info = {
- .name = TYPE_VIRTIO_CRYPTO_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_crypto_pci_info = {
+ .generic_name = TYPE_VIRTIO_CRYPTO_PCI,
.instance_size = sizeof(VirtIOCryptoPCI),
.instance_init = virtio_crypto_initfn,
.class_init = virtio_crypto_pci_class_init,
@@ -74,6 +73,6 @@ static const TypeInfo virtio_crypto_pci_info = {
static void virtio_crypto_pci_register_types(void)
{
- type_register_static(&virtio_crypto_pci_info);
+ virtio_pci_types_register(&virtio_crypto_pci_info);
}
type_init(virtio_crypto_pci_register_types)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 9a987cb..bee3509 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1119,9 +1119,8 @@ static void virtio_9p_pci_instance_init(Object *obj)
TYPE_VIRTIO_9P);
}
-static const TypeInfo virtio_9p_pci_info = {
- .name = TYPE_VIRTIO_9P_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_9p_pci_info = {
+ .generic_name = TYPE_VIRTIO_9P_PCI,
.instance_size = sizeof(V9fsPCIState),
.instance_init = virtio_9p_pci_instance_init,
.class_init = virtio_9p_pci_class_init,
@@ -1877,9 +1876,6 @@ static void virtio_pci_reset(DeviceState *qdev)
static Property virtio_pci_properties[] = {
DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
- DEFINE_PROP_ON_OFF_AUTO("disable-legacy", VirtIOPCIProxy, disable_legacy,
- ON_OFF_AUTO_AUTO),
- DEFINE_PROP_BOOL("disable-modern", VirtIOPCIProxy, disable_modern, false),
DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT, true),
DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy, flags,
@@ -1939,13 +1935,123 @@ static const TypeInfo virtio_pci_info = {
.class_init = virtio_pci_class_init,
.class_size = sizeof(VirtioPCIClass),
.abstract = true,
- .interfaces = (InterfaceInfo[]) {
- { INTERFACE_PCIE_DEVICE },
- { INTERFACE_CONVENTIONAL_PCI_DEVICE },
- { }
- },
};
+static Property virtio_pci_generic_properties[] = {
+ DEFINE_PROP_ON_OFF_AUTO("disable-legacy", VirtIOPCIProxy, disable_legacy,
+ ON_OFF_AUTO_AUTO),
+ DEFINE_PROP_BOOL("disable-modern", VirtIOPCIProxy, disable_modern, false),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_pci_base_class_init(ObjectClass *klass, void *data)
+{
+ const VirtioPCIDeviceTypeInfo *t = data;
+ if (t->class_init) {
+ t->class_init(klass, NULL);
+ }
+}
+
+static void virtio_pci_generic_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->props = virtio_pci_generic_properties;
+}
+
+/* Used when the generic type and the base type is the same */
+static void virtio_pci_generic_base_class_init(ObjectClass *klass, void *data)
+{
+ virtio_pci_base_class_init(klass, data);
+ virtio_pci_generic_class_init(klass, NULL);
+}
+
+static void virtio_pci_transitional_instance_init(Object *obj)
+{
+ VirtIOPCIProxy *proxy = VIRTIO_PCI(obj);
+
+ proxy->disable_legacy = ON_OFF_AUTO_OFF;
+ proxy->disable_modern = false;
+}
+
+static void virtio_pci_non_transitional_instance_init(Object *obj)
+{
+ VirtIOPCIProxy *proxy = VIRTIO_PCI(obj);
+
+ proxy->disable_legacy = ON_OFF_AUTO_ON;
+ proxy->disable_modern = false;
+}
+
+void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t)
+{
+ TypeInfo base_type_info = {
+ .name = t->base_name,
+ .parent = t->parent ? t->parent : TYPE_VIRTIO_PCI,
+ .instance_size = t->instance_size,
+ .instance_init = t->instance_init,
+ .class_init = virtio_pci_base_class_init,
+ .class_data = (void *)t,
+ .abstract = true,
+ };
+ TypeInfo generic_type_info = {
+ .name = t->generic_name,
+ .parent = base_type_info.name,
+ .class_init = virtio_pci_generic_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_PCIE_DEVICE },
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { }
+ },
+ };
+
+ if (!base_type_info.name) {
+ /* No base type -> register a single generic device type */
+ base_type_info.name = t->generic_name;
+ base_type_info.class_init = virtio_pci_generic_base_class_init;
+ base_type_info.interfaces = generic_type_info.interfaces;
+ base_type_info.abstract = false;
+ generic_type_info.name = NULL;
+ assert(!t->non_transitional_name);
+ assert(!t->transitional_name);
+ }
+
+ type_register(&base_type_info);
+ if (generic_type_info.name) {
+ type_register(&generic_type_info);
+ }
+
+ if (t->non_transitional_name) {
+ const TypeInfo non_transitional_type_info = {
+ .name = t->non_transitional_name,
+ .parent = base_type_info.name,
+ .instance_init = virtio_pci_non_transitional_instance_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_PCIE_DEVICE },
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { }
+ },
+ };
+ type_register(&non_transitional_type_info);
+ }
+
+ if (t->transitional_name) {
+ const TypeInfo transitional_type_info = {
+ .name = t->transitional_name,
+ .parent = base_type_info.name,
+ .instance_init = virtio_pci_transitional_instance_init,
+ .interfaces = (InterfaceInfo[]) {
+ /*
+ * Transitional virtio devices work only as Conventional PCI
+ * devices because they require PIO ports.
+ */
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { }
+ },
+ };
+ type_register(&transitional_type_info);
+ }
+}
+
/* virtio-blk-pci */
static Property virtio_blk_pci_properties[] = {
@@ -1995,9 +2101,8 @@ static void virtio_blk_pci_instance_init(Object *obj)
"bootindex", &error_abort);
}
-static const TypeInfo virtio_blk_pci_info = {
- .name = TYPE_VIRTIO_BLK_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_blk_pci_info = {
+ .generic_name = TYPE_VIRTIO_BLK_PCI,
.instance_size = sizeof(VirtIOBlkPCI),
.instance_init = virtio_blk_pci_instance_init,
.class_init = virtio_blk_pci_class_init,
@@ -2051,9 +2156,8 @@ static void vhost_user_blk_pci_instance_init(Object *obj)
"bootindex", &error_abort);
}
-static const TypeInfo vhost_user_blk_pci_info = {
- .name = TYPE_VHOST_USER_BLK_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo vhost_user_blk_pci_info = {
+ .generic_name = TYPE_VHOST_USER_BLK_PCI,
.instance_size = sizeof(VHostUserBlkPCI),
.instance_init = vhost_user_blk_pci_instance_init,
.class_init = vhost_user_blk_pci_class_init,
@@ -2119,9 +2223,8 @@ static void virtio_scsi_pci_instance_init(Object *obj)
TYPE_VIRTIO_SCSI);
}
-static const TypeInfo virtio_scsi_pci_info = {
- .name = TYPE_VIRTIO_SCSI_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_scsi_pci_info = {
+ .generic_name = TYPE_VIRTIO_SCSI_PCI,
.instance_size = sizeof(VirtIOSCSIPCI),
.instance_init = virtio_scsi_pci_instance_init,
.class_init = virtio_scsi_pci_class_init,
@@ -2174,9 +2277,8 @@ static void vhost_scsi_pci_instance_init(Object *obj)
"bootindex", &error_abort);
}
-static const TypeInfo vhost_scsi_pci_info = {
- .name = TYPE_VHOST_SCSI_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info = {
+ .generic_name = TYPE_VHOST_SCSI_PCI,
.instance_size = sizeof(VHostSCSIPCI),
.instance_init = vhost_scsi_pci_instance_init,
.class_init = vhost_scsi_pci_class_init,
@@ -2229,9 +2331,8 @@ static void vhost_user_scsi_pci_instance_init(Object *obj)
"bootindex", &error_abort);
}
-static const TypeInfo vhost_user_scsi_pci_info = {
- .name = TYPE_VHOST_USER_SCSI_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo vhost_user_scsi_pci_info = {
+ .generic_name = TYPE_VHOST_USER_SCSI_PCI,
.instance_size = sizeof(VHostUserSCSIPCI),
.instance_init = vhost_user_scsi_pci_instance_init,
.class_init = vhost_user_scsi_pci_class_init,
@@ -2277,9 +2378,8 @@ static void vhost_vsock_pci_instance_init(Object *obj)
TYPE_VHOST_VSOCK);
}
-static const TypeInfo vhost_vsock_pci_info = {
- .name = TYPE_VHOST_VSOCK_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo vhost_vsock_pci_info = {
+ .generic_name = TYPE_VHOST_VSOCK_PCI,
.instance_size = sizeof(VHostVSockPCI),
.instance_init = vhost_vsock_pci_instance_init,
.class_init = vhost_vsock_pci_class_init,
@@ -2334,9 +2434,8 @@ static void virtio_balloon_pci_instance_init(Object *obj)
"guest-stats-polling-interval", &error_abort);
}
-static const TypeInfo virtio_balloon_pci_info = {
- .name = TYPE_VIRTIO_BALLOON_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_balloon_pci_info = {
+ .generic_name = TYPE_VIRTIO_BALLOON_PCI,
.instance_size = sizeof(VirtIOBalloonPCI),
.instance_init = virtio_balloon_pci_instance_init,
.class_init = virtio_balloon_pci_class_init,
@@ -2407,9 +2506,8 @@ static void virtio_serial_pci_instance_init(Object *obj)
TYPE_VIRTIO_SERIAL);
}
-static const TypeInfo virtio_serial_pci_info = {
- .name = TYPE_VIRTIO_SERIAL_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_serial_pci_info = {
+ .generic_name = TYPE_VIRTIO_SERIAL_PCI,
.instance_size = sizeof(VirtIOSerialPCI),
.instance_init = virtio_serial_pci_instance_init,
.class_init = virtio_serial_pci_class_init,
@@ -2462,9 +2560,8 @@ static void virtio_net_pci_instance_init(Object *obj)
"bootindex", &error_abort);
}
-static const TypeInfo virtio_net_pci_info = {
- .name = TYPE_VIRTIO_NET_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_net_pci_info = {
+ .generic_name = TYPE_VIRTIO_NET_PCI,
.instance_size = sizeof(VirtIONetPCI),
.instance_init = virtio_net_pci_instance_init,
.class_init = virtio_net_pci_class_init,
@@ -2513,9 +2610,8 @@ static void virtio_rng_initfn(Object *obj)
TYPE_VIRTIO_RNG);
}
-static const TypeInfo virtio_rng_pci_info = {
- .name = TYPE_VIRTIO_RNG_PCI,
- .parent = TYPE_VIRTIO_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_rng_pci_info = {
+ .generic_name = TYPE_VIRTIO_RNG_PCI,
.instance_size = sizeof(VirtIORngPCI),
.instance_init = virtio_rng_initfn,
.class_init = virtio_rng_pci_class_init,
@@ -2605,24 +2701,24 @@ static const TypeInfo virtio_input_hid_pci_info = {
.abstract = true,
};
-static const TypeInfo virtio_keyboard_pci_info = {
- .name = TYPE_VIRTIO_KEYBOARD_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_keyboard_pci_info = {
+ .generic_name = TYPE_VIRTIO_KEYBOARD_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.class_init = virtio_input_hid_kbd_pci_class_init,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_keyboard_initfn,
};
-static const TypeInfo virtio_mouse_pci_info = {
- .name = TYPE_VIRTIO_MOUSE_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_mouse_pci_info = {
+ .generic_name = TYPE_VIRTIO_MOUSE_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.class_init = virtio_input_hid_mouse_pci_class_init,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_mouse_initfn,
};
-static const TypeInfo virtio_tablet_pci_info = {
- .name = TYPE_VIRTIO_TABLET_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_tablet_pci_info = {
+ .generic_name = TYPE_VIRTIO_TABLET_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_tablet_initfn,
@@ -2637,8 +2733,8 @@ static void virtio_host_initfn(Object *obj)
TYPE_VIRTIO_INPUT_HOST);
}
-static const TypeInfo virtio_host_pci_info = {
- .name = TYPE_VIRTIO_INPUT_HOST_PCI,
+static const VirtioPCIDeviceTypeInfo virtio_host_pci_info = {
+ .generic_name = TYPE_VIRTIO_INPUT_HOST_PCI,
.parent = TYPE_VIRTIO_INPUT_PCI,
.instance_size = sizeof(VirtIOInputHostPCI),
.instance_init = virtio_host_initfn,
@@ -2692,36 +2788,39 @@ static const TypeInfo virtio_pci_bus_info = {
static void virtio_pci_register_types(void)
{
- type_register_static(&virtio_rng_pci_info);
+ /* Base types: */
+ type_register_static(&virtio_pci_bus_info);
+ type_register_static(&virtio_pci_info);
type_register_static(&virtio_input_pci_info);
type_register_static(&virtio_input_hid_pci_info);
- type_register_static(&virtio_keyboard_pci_info);
- type_register_static(&virtio_mouse_pci_info);
- type_register_static(&virtio_tablet_pci_info);
+
+ /* Implementations: */
+ virtio_pci_types_register(&virtio_rng_pci_info);
+ virtio_pci_types_register(&virtio_keyboard_pci_info);
+ virtio_pci_types_register(&virtio_mouse_pci_info);
+ virtio_pci_types_register(&virtio_tablet_pci_info);
#ifdef CONFIG_LINUX
- type_register_static(&virtio_host_pci_info);
+ virtio_pci_types_register(&virtio_host_pci_info);
#endif
- type_register_static(&virtio_pci_bus_info);
- type_register_static(&virtio_pci_info);
#ifdef CONFIG_VIRTFS
- type_register_static(&virtio_9p_pci_info);
+ virtio_pci_types_register(&virtio_9p_pci_info);
#endif
- type_register_static(&virtio_blk_pci_info);
+ virtio_pci_types_register(&virtio_blk_pci_info);
#if defined(CONFIG_VHOST_USER_BLK)
- type_register_static(&vhost_user_blk_pci_info);
+ virtio_pci_types_register(&vhost_user_blk_pci_info);
#endif
- type_register_static(&virtio_scsi_pci_info);
- type_register_static(&virtio_balloon_pci_info);
- type_register_static(&virtio_serial_pci_info);
- type_register_static(&virtio_net_pci_info);
+ virtio_pci_types_register(&virtio_scsi_pci_info);
+ virtio_pci_types_register(&virtio_balloon_pci_info);
+ virtio_pci_types_register(&virtio_serial_pci_info);
+ virtio_pci_types_register(&virtio_net_pci_info);
#ifdef CONFIG_VHOST_SCSI
- type_register_static(&vhost_scsi_pci_info);
+ virtio_pci_types_register(&vhost_scsi_pci_info);
#endif
#if defined(CONFIG_VHOST_USER_SCSI)
- type_register_static(&vhost_user_scsi_pci_info);
+ virtio_pci_types_register(&vhost_user_scsi_pci_info);
#endif
#ifdef CONFIG_VHOST_VSOCK
- type_register_static(&vhost_vsock_pci_info);
+ virtio_pci_types_register(&vhost_vsock_pci_info);
#endif
}
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index 813082b..8cd5466 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -417,4 +417,58 @@ struct VirtIOCryptoPCI {
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0
+/* Input for virtio_pci_types_register() */
+typedef struct VirtioPCIDeviceTypeInfo {
+ /*
+ * Common base class for the subclasses below.
+ *
+ * Required only if transitional_name or non_transitional_name is set.
+ *
+ * We need a separate base type instead of making all types
+ * inherit from generic_name for two reasons:
+ * 1) generic_name implements INTERFACE_PCIE_DEVICE, but
+ * transitional_name does not.
+ * 2) generic_name has the "disable-legacy" and "disable-modern"
+ * properties, transitional_name and non_transitional name don't.
+ */
+ const char *base_name;
+ /*
+ * Generic device type. Optional.
+ *
+ * Supports both transitional and non-transitional modes,
+ * using the disable-legacy and disable-modern properties.
+ * If disable-legacy=auto, (non-)transitional mode is selected
+ * depending on the bus where the device is plugged.
+ *
+ * Implements both INTERFACE_PCIE_DEVICE and INTERFACE_CONVENTIONAL_PCI_DEVICE,
+ * but PCI Express is supported only in non-transitional mode.
+ *
+ * The only type implemented by QEMU 3.1 and older.
+ */
+ const char *generic_name;
+ /*
+ * The transitional device type. Optional.
+ *
+ * Implements both INTERFACE_PCIE_DEVICE and INTERFACE_CONVENTIONAL_PCI_DEVICE.
+ */
+ const char *transitional_name;
+ /*
+ * The non-transitional device type. Optional.
+ *
+ * Implements INTERFACE_CONVENTIONAL_PCI_DEVICE only.
+ */
+ const char *non_transitional_name;
+
+ /* Parent type. If NULL, TYPE_VIRTIO_PCI is used */
+ const char *parent;
+
+ /* Same as TypeInfo fields: */
+ size_t instance_size;
+ void (*instance_init)(Object *obj);
+ void (*class_init)(ObjectClass *klass, void *data);
+} VirtioPCIDeviceTypeInfo;
+
+/* Register virtio-pci type(s). @t must be static. */
+void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t);
+
#endif
--
1.8.3.1
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