From 5dd8165f1754e156a0f9fb16c7a6bfa90e99ed60 Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Mon, 14 Sep 2026 06:43:11 -0400 Subject: 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 --- kernel/gsp_emulation.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/gsp_emulation.h') diff --git a/kernel/gsp_emulation.h b/kernel/gsp_emulation.h index f703ae6..12bce63 100644 --- a/kernel/gsp_emulation.h +++ b/kernel/gsp_emulation.h @@ -41,6 +41,7 @@ struct gsp_emu_context { struct nv_vgpu_device *vgpu; struct task_struct *thread; + struct completion thread_stopped; void __iomem *bar0_vaddr; void __iomem *doorbell_reg; void __iomem *shared_mem; @@ -48,6 +49,7 @@ struct gsp_emu_context { spinlock_t lock; bool running; bool initialized; + bool stopping; /* Shared memory for RPC communication (4KB at BAR0+0x1000) */ void *shared_mem_virt; -- cgit v1.2.3