VFIO device registration fix + IOMMUFD callbacks + VFIO ioctl handlers

- Removed IOMMU group addition before vfio_register_emulated_iommu_dev() in nv_vgpu_mdev_create()
- Added IOMMUFD callbacks (bind_iommufd, unbind_iommufd, attach_ioas, detach_ioas) using kernel's vfio_iommufd_emulated_* functions
- Implemented VFIO ioctl handlers: GET_INFO, GET_REGION_INFO, GET_IRQ_INFO, SET_IRQS, MMAP
- Added config space read/write handlers at offset 0x70000000000
- Mmap handler for config space, BAR0 (emulation shadow), BAR1-5 (physical VRAM/registers)
- Interrupt handler for VFIO_DEVICE_SET_IRQS (DATA_EVENTFD, DATA_NONE, DATA_BOOL)
- Added udev rules for vfio group permissions
- Created stack_manager.sh unified tool
- Fixed mdev remove crash with deferred cleanup in vfio_device_release callback
- Kernel 6.8+ IOMMUFD compatibility
- QEMU launches successfully with vGPU passthrough

1 files changed, 1 insertions, 25 deletions

diff --git a/kernel/dynamic_rpc_dispatcher.c b/kernel/dynamic_rpc_dispatcher.c
index fb9ca6b..ca4268d 100644
--- a/kernel/dynamic_rpc_dispatcher.c
+++ b/kernel/dynamic_rpc_dispatcher.c
@@ -19,30 +19,6 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Open-IOV");
 MODULE_DESCRIPTION("Dynamic RPC Dispatcher");
 
-/* Version-specific interface */
-struct rpc_interface {
-    char version[32];
-    struct fw_addresses fw_addrs;
-    
-    /* Function pointers for native firmware handlers */
-    int (*alloc)(struct gsp_client *, u64, u64, u32, u32, u64, u32, u64 *, u64 *, u64 *);
-    int (*free)(struct gsp_client *, u64);
-    int (*map)(struct gsp_client *, u64, u64, u64, u32, u32, u64, u64 *);
-    int (*unmap)(struct gsp_client *, u64, u64, u64);
-    int (*pin)(struct gsp_client *, u64, u64, u64, u32, u64 *, u32 *);
-    int (*unpin)(struct gsp_client *, u64, u64, u64);
-    int (*schedule)(struct gsp_client *, u64, u64, u64, u32, u32);
-    int (*yield)(struct gsp_client *);
-    int (*bar_trap)(struct gsp_client *, u64, u32, u32, u64, u32, u64 *);
-    int (*migrate_save)(struct gsp_client *, u64, u64, u64, u64, u64 *);
-    int (*migrate_restore)(struct gsp_client *, u64, u64, u64, u64, u64);
-    int (*notify_register)(struct gsp_client *, u32, void (*)(struct gsp_client *, struct gsp_rpc_response *, void *), void *);
-    void (*notify_unregister)(struct gsp_client *, u32);
-    
-    /* Emulation fallbacks */
-    bool use_emulation[GSP_RPC_MAX_TYPE];
-};
-
 /* Dispatcher context */
 struct dynamic_dispatcher {
     struct rpc_interface *current_interface;
@@ -440,7 +416,7 @@ const struct fw_addresses *dynamic_dispatcher_get_fw_addresses(void)
 
 EXPORT_SYMBOL_GPL(dynamic_dispatcher_init);
 EXPORT_SYMBOL_GPL(dynamic_dispatcher_fini);
-EXPORT_SYMBOL_GPL(dynamic_dispatcher_get_interface);
+// EXPORT_SYMBOL_GPL(dynamic_dispatcher_get_interface); // Internal function, not exported
 EXPORT_SYMBOL_GPL(dynamic_dispatcher_use_emulation);
 EXPORT_SYMBOL_GPL(dynamic_dispatcher_alloc);
 EXPORT_SYMBOL_GPL(dynamic_dispatcher_free);