From: John G Johnson <john.g.john...@oracle.com>
Add an abstract base class both the kernel driver
and user socket implementations can use to share code.
Signed-off-by: John G Johnson <john.g.john...@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimts...@oracle.com>
Signed-off-by: Jagannathan Raman <jag.ra...@oracle.com>
---
hw/vfio/pci.h | 25 ++++++++++++++++++--
hw/vfio/pci.c | 63 ++++++++++++++++++++++++++++++++-------------------
2 files changed, 63 insertions(+), 25 deletions(-)
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 64777516d1..ba2f51d98f 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -114,8 +114,13 @@ typedef struct VFIOMSIXInfo {
unsigned long *pending;
} VFIOMSIXInfo;
-#define TYPE_VFIO_PCI "vfio-pci"
-OBJECT_DECLARE_SIMPLE_TYPE(VFIOPCIDevice, VFIO_PCI)
+/*
+ * TYPE_VFIO_PCI_BASE is an abstract type used to share code
+ * between VFIO implementations that use a kernel driver
+ * with those that use user sockers.
+ */
+#define TYPE_VFIO_PCI_BASE "vfio-pci-base"
+OBJECT_DECLARE_SIMPLE_TYPE(VFIOPCIDevice, VFIO_PCI_BASE)
struct VFIOPCIDevice {
PCIDevice pdev;
@@ -175,6 +180,22 @@ struct VFIOPCIDevice {
Notifier irqchip_change_notifier;
};
+#define TYPE_VFIO_PCI "vfio-pci"
+OBJECT_DECLARE_SIMPLE_TYPE(VFIOKernPCIDevice, VFIO_PCI)
+
+struct VFIOKernPCIDevice {
+ VFIOPCIDevice device;
+};
+
+#define TYPE_VFIO_USER_PCI "vfio-user-pci"
+OBJECT_DECLARE_SIMPLE_TYPE(VFIOUserPCIDevice, VFIO_USER_PCI)
+
+struct VFIOUserPCIDevice {
+ VFIOPCIDevice device;
+ char *sock_name;
+ bool secure;
+};
+
/* Use uin32_t for vendor & device so PCI_ANY_ID expands and cannot match hw */
static inline bool vfio_pci_is(VFIOPCIDevice *vdev, uint32_t vendor, uint32_t
device)
{
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index e1ea1d8a23..bea95efc33 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -231,7 +231,7 @@ static void vfio_intx_update(VFIOPCIDevice *vdev,
PCIINTxRoute *route)
static void vfio_intx_routing_notifier(PCIDevice *pdev)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
PCIINTxRoute route;
if (vdev->interrupt != VFIO_INT_INTx) {
@@ -457,7 +457,7 @@ static void vfio_update_kvm_msi_virq(VFIOMSIVector *vector,
MSIMessage msg,
static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr,
MSIMessage *msg, IOHandler *handler)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
VFIOMSIVector *vector;
int ret;
@@ -542,7 +542,7 @@ static int vfio_msix_vector_use(PCIDevice *pdev,
static void vfio_msix_vector_release(PCIDevice *pdev, unsigned int nr)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
VFIOMSIVector *vector = &vdev->msi_vectors[nr];
trace_vfio_msix_vector_release(vdev->vbasedev.name, nr);
@@ -1063,7 +1063,7 @@ static const MemoryRegionOps vfio_vga_ops = {
*/
static void vfio_sub_page_bar_update_mapping(PCIDevice *pdev, int bar)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
VFIORegion *region = &vdev->bars[bar].region;
MemoryRegion *mmap_mr, *region_mr, *base_mr;
PCIIORegion *r;
@@ -1109,7 +1109,7 @@ static void vfio_sub_page_bar_update_mapping(PCIDevice
*pdev, int bar)
*/
uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t addr, int len)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
uint32_t emu_bits = 0, emu_val = 0, phys_val = 0, val;
memcpy(&emu_bits, vdev->emulated_config_bits + addr, len);
@@ -1142,7 +1142,7 @@ uint32_t vfio_pci_read_config(PCIDevice *pdev, uint32_t
addr, int len)
void vfio_pci_write_config(PCIDevice *pdev,
uint32_t addr, uint32_t val, int len)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
uint32_t val_le = cpu_to_le32(val);
trace_vfio_pci_write_config(vdev->vbasedev.name, addr, val, len);
@@ -2782,7 +2782,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevice
*vdev)
static void vfio_realize(PCIDevice *pdev, Error **errp)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
VFIODevice *vbasedev_iter;
VFIOGroup *group;
char *tmp, *subsys, group_path[PATH_MAX], *group_name;
@@ -3105,7 +3105,7 @@ error:
static void vfio_instance_finalize(Object *obj)
{
- VFIOPCIDevice *vdev = VFIO_PCI(obj);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(obj);
VFIOGroup *group = vdev->vbasedev.group;
vfio_display_finalize(vdev);
@@ -3125,7 +3125,7 @@ static void vfio_instance_finalize(Object *obj)
static void vfio_exitfn(PCIDevice *pdev)
{
- VFIOPCIDevice *vdev = VFIO_PCI(pdev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(pdev);
vfio_unregister_req_notifier(vdev);
vfio_unregister_err_notifier(vdev);
@@ -3144,7 +3144,7 @@ static void vfio_exitfn(PCIDevice *pdev)
static void vfio_pci_reset(DeviceState *dev)
{
- VFIOPCIDevice *vdev = VFIO_PCI(dev);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(dev);
trace_vfio_pci_reset(vdev->vbasedev.name);
@@ -3184,7 +3184,7 @@ post_reset:
static void vfio_instance_init(Object *obj)
{
PCIDevice *pci_dev = PCI_DEVICE(obj);
- VFIOPCIDevice *vdev = VFIO_PCI(obj);
+ VFIOPCIDevice *vdev = VFIO_PCI_BASE(obj);
device_add_bootindex_property(obj, &vdev->bootindex,
"bootindex", NULL,
@@ -3253,28 +3253,24 @@ static Property vfio_pci_dev_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
-static void vfio_pci_dev_class_init(ObjectClass *klass, void *data)
+static void vfio_pci_base_dev_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *pdc = PCI_DEVICE_CLASS(klass);
- dc->reset = vfio_pci_reset;
- device_class_set_props(dc, vfio_pci_dev_properties);
- dc->desc = "VFIO-based PCI device assignment";
+ dc->desc = "VFIO PCI base device";
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
- pdc->realize = vfio_realize;
pdc->exit = vfio_exitfn;
pdc->config_read = vfio_pci_read_config;
pdc->config_write = vfio_pci_write_config;
}
-static const TypeInfo vfio_pci_dev_info = {
- .name = TYPE_VFIO_PCI,
+static const TypeInfo vfio_pci_base_dev_info = {
+ .name = TYPE_VFIO_PCI_BASE,
.parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(VFIOPCIDevice),
- .class_init = vfio_pci_dev_class_init,
- .instance_init = vfio_instance_init,
- .instance_finalize = vfio_instance_finalize,
+ .instance_size = 0,
+ .abstract = true,
+ .class_init = vfio_pci_base_dev_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_PCIE_DEVICE },
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
@@ -3282,6 +3278,26 @@ static const TypeInfo vfio_pci_dev_info = {
},
};
+static void vfio_pci_dev_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *pdc = PCI_DEVICE_CLASS(klass);
+
+ dc->reset = vfio_pci_reset;
+ device_class_set_props(dc, vfio_pci_dev_properties);
+ dc->desc = "VFIO-based PCI device assignment";
+ pdc->realize = vfio_realize;
+}
+
+static const TypeInfo vfio_pci_dev_info = {
+ .name = TYPE_VFIO_PCI,
+ .parent = TYPE_VFIO_PCI_BASE,
+ .instance_size = sizeof(VFIOKernPCIDevice),
+ .class_init = vfio_pci_dev_class_init,
+ .instance_init = vfio_instance_init,
+ .instance_finalize = vfio_instance_finalize,
+};
+
static Property vfio_pci_dev_nohotplug_properties[] = {
DEFINE_PROP_BOOL("ramfb", VFIOPCIDevice, enable_ramfb, false),
DEFINE_PROP_END_OF_LIST(),
@@ -3298,12 +3314,13 @@ static void
vfio_pci_nohotplug_dev_class_init(ObjectClass *klass, void *data)
static const TypeInfo vfio_pci_nohotplug_dev_info = {
.name = TYPE_VFIO_PCI_NOHOTPLUG,
.parent = TYPE_VFIO_PCI,
- .instance_size = sizeof(VFIOPCIDevice),
+ .instance_size = sizeof(VFIOKernPCIDevice),
.class_init = vfio_pci_nohotplug_dev_class_init,
};
static void register_vfio_pci_dev_type(void)
{
+ type_register_static(&vfio_pci_base_dev_info);
type_register_static(&vfio_pci_dev_info);
type_register_static(&vfio_pci_nohotplug_dev_info);
}
--
2.25.1
