| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Alex Williamson | 745 | 83.80% | 19 | 70.37% |
| Alexey Kardashevskiy | 103 | 11.59% | 3 | 11.11% |
| Yongji Xie | 25 | 2.81% | 1 | 3.70% |
| Feng Wu | 7 | 0.79% | 1 | 3.70% |
| Vijay Mohan Pandarathil | 5 | 0.56% | 1 | 3.70% |
| Denis Efremov | 2 | 0.22% | 1 | 3.70% |
| Thomas Gleixner | 2 | 0.22% | 1 | 3.70% |
| Total | 889 | 27 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 Red Hat, Inc. All rights reserved. * Author: Alex Williamson <alex.williamson@redhat.com> * * Derived from original vfio: * Copyright 2010 Cisco Systems, Inc. All rights reserved. * Author: Tom Lyon, pugs@cisco.com */ #include <linux/mutex.h> #include <linux/pci.h> #include <linux/irqbypass.h> #include <linux/types.h> #include <linux/uuid.h> #include <linux/notifier.h> #ifndef VFIO_PCI_PRIVATE_H #define VFIO_PCI_PRIVATE_H #define VFIO_PCI_OFFSET_SHIFT 40 #define VFIO_PCI_OFFSET_TO_INDEX(off) (off >> VFIO_PCI_OFFSET_SHIFT) #define VFIO_PCI_INDEX_TO_OFFSET(index) ((u64)(index) << VFIO_PCI_OFFSET_SHIFT) #define VFIO_PCI_OFFSET_MASK (((u64)(1) << VFIO_PCI_OFFSET_SHIFT) - 1) /* Special capability IDs predefined access */ #define PCI_CAP_ID_INVALID 0xFF /* default raw access */ #define PCI_CAP_ID_INVALID_VIRT 0xFE /* default virt access */ /* Cap maximum number of ioeventfds per device (arbitrary) */ #define VFIO_PCI_IOEVENTFD_MAX 1000 struct vfio_pci_ioeventfd { struct list_head next; struct vfio_pci_device *vdev; struct virqfd *virqfd; void __iomem *addr; uint64_t data; loff_t pos; int bar; int count; bool test_mem; }; struct vfio_pci_irq_ctx { struct eventfd_ctx *trigger; struct virqfd *unmask; struct virqfd *mask; char *name; bool masked; struct irq_bypass_producer producer; }; struct vfio_pci_device; struct vfio_pci_region; struct vfio_pci_regops { size_t (*rw)(struct vfio_pci_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); void (*release)(struct vfio_pci_device *vdev, struct vfio_pci_region *region); int (*mmap)(struct vfio_pci_device *vdev, struct vfio_pci_region *region, struct vm_area_struct *vma); int (*add_capability)(struct vfio_pci_device *vdev, struct vfio_pci_region *region, struct vfio_info_cap *caps); }; struct vfio_pci_region { u32 type; u32 subtype; const struct vfio_pci_regops *ops; void *data; size_t size; u32 flags; }; struct vfio_pci_dummy_resource { struct resource resource; int index; struct list_head res_next; }; struct vfio_pci_reflck { struct kref kref; struct mutex lock; }; struct vfio_pci_vf_token { struct mutex lock; uuid_t uuid; int users; }; struct vfio_pci_mmap_vma { struct vm_area_struct *vma; struct list_head vma_next; }; struct vfio_pci_device { struct pci_dev *pdev; void __iomem *barmap[PCI_STD_NUM_BARS]; bool bar_mmap_supported[PCI_STD_NUM_BARS]; u8 *pci_config_map; u8 *vconfig; struct perm_bits *msi_perm; spinlock_t irqlock; struct mutex igate; struct vfio_pci_irq_ctx *ctx; int num_ctx; int irq_type; int num_regions; struct vfio_pci_region *region; u8 msi_qmax; u8 msix_bar; u16 msix_size; u32 msix_offset; u32 rbar[7]; bool pci_2_3; bool virq_disabled; bool reset_works; bool extended_caps; bool bardirty; bool has_vga; bool needs_reset; bool nointx; bool needs_pm_restore; struct pci_saved_state *pci_saved_state; struct pci_saved_state *pm_save; struct vfio_pci_reflck *reflck; int refcnt; int ioeventfds_nr; struct eventfd_ctx *err_trigger; struct eventfd_ctx *req_trigger; struct list_head dummy_resources_list; struct mutex ioeventfds_lock; struct list_head ioeventfds_list; struct vfio_pci_vf_token *vf_token; struct notifier_block nb; struct mutex vma_lock; struct list_head vma_list; struct rw_semaphore memory_lock; }; #define is_intx(vdev) (vdev->irq_type == VFIO_PCI_INTX_IRQ_INDEX) #define is_msi(vdev) (vdev->irq_type == VFIO_PCI_MSI_IRQ_INDEX) #define is_msix(vdev) (vdev->irq_type == VFIO_PCI_MSIX_IRQ_INDEX) #define is_irq_none(vdev) (!(is_intx(vdev) || is_msi(vdev) || is_msix(vdev))) #define irq_is(vdev, type) (vdev->irq_type == type) extern void vfio_pci_intx_mask(struct vfio_pci_device *vdev); extern void vfio_pci_intx_unmask(struct vfio_pci_device *vdev); extern int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, unsigned index, unsigned start, unsigned count, void *data); extern ssize_t vfio_pci_config_rw(struct vfio_pci_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); extern ssize_t vfio_pci_bar_rw(struct vfio_pci_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); extern ssize_t vfio_pci_vga_rw(struct vfio_pci_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); extern long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, uint64_t data, int count, int fd); extern int vfio_pci_init_perm_bits(void); extern void vfio_pci_uninit_perm_bits(void); extern int vfio_config_init(struct vfio_pci_device *vdev); extern void vfio_config_free(struct vfio_pci_device *vdev); extern int vfio_pci_register_dev_region(struct vfio_pci_device *vdev, unsigned int type, unsigned int subtype, const struct vfio_pci_regops *ops, size_t size, u32 flags, void *data); extern int vfio_pci_set_power_state(struct vfio_pci_device *vdev, pci_power_t state); extern bool __vfio_pci_memory_enabled(struct vfio_pci_device *vdev); extern void vfio_pci_zap_and_down_write_memory_lock(struct vfio_pci_device *vdev); extern u16 vfio_pci_memory_lock_and_enable(struct vfio_pci_device *vdev); extern void vfio_pci_memory_unlock_and_restore(struct vfio_pci_device *vdev, u16 cmd); #ifdef CONFIG_VFIO_PCI_IGD extern int vfio_pci_igd_init(struct vfio_pci_device *vdev); #else static inline int vfio_pci_igd_init(struct vfio_pci_device *vdev) { return -ENODEV; } #endif #ifdef CONFIG_VFIO_PCI_NVLINK2 extern int vfio_pci_nvdia_v100_nvlink2_init(struct vfio_pci_device *vdev); extern int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev); #else static inline int vfio_pci_nvdia_v100_nvlink2_init(struct vfio_pci_device *vdev) { return -ENODEV; } static inline int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev) { return -ENODEV; } #endif #endif /* VFIO_PCI_PRIVATE_H */
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