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Diffstat (limited to 'include/hw/vfio/vfio-common.h')
| -rw-r--r-- | include/hw/vfio/vfio-common.h | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h deleted file mode 100644 index 04b123a..0000000 --- a/include/hw/vfio/vfio-common.h +++ /dev/null @@ -1,346 +0,0 @@ -/* - * common header for vfio based device assignment support - * - * Copyright Red Hat, Inc. 2012 - * - * Authors: - * Alex Williamson <alex.williamson@redhat.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - * Based on qemu-kvm device-assignment: - * Adapted for KVM by Qumranet. - * Copyright (c) 2007, Neocleus, Alex Novik (alex@neocleus.com) - * Copyright (c) 2007, Neocleus, Guy Zana (guy@neocleus.com) - * Copyright (C) 2008, Qumranet, Amit Shah (amit.shah@qumranet.com) - * Copyright (C) 2008, Red Hat, Amit Shah (amit.shah@redhat.com) - * Copyright (C) 2008, IBM, Muli Ben-Yehuda (muli@il.ibm.com) - */ - -#ifndef HW_VFIO_VFIO_COMMON_H -#define HW_VFIO_VFIO_COMMON_H - -#include "exec/memory.h" -#include "qemu/queue.h" -#include "qemu/notify.h" -#include "ui/console.h" -#include "hw/display/ramfb.h" -#ifdef CONFIG_LINUX -#include <linux/vfio.h> -#endif -#include "system/system.h" -#include "hw/vfio/vfio-container-base.h" -#include "system/host_iommu_device.h" -#include "system/iommufd.h" - -#define VFIO_MSG_PREFIX "vfio %s: " - -/* - * Flags to be used as unique delimiters for VFIO devices in the migration - * stream. These flags are composed as: - * 0xffffffff => MSB 32-bit all 1s - * 0xef10 => Magic ID, represents emulated (virtual) function IO - * 0x0000 => 16-bits reserved for flags - * - * The beginning of state information is marked by _DEV_CONFIG_STATE, - * _DEV_SETUP_STATE, or _DEV_DATA_STATE, respectively. The end of a - * certain state information is marked by _END_OF_STATE. - */ -#define VFIO_MIG_FLAG_END_OF_STATE (0xffffffffef100001ULL) -#define VFIO_MIG_FLAG_DEV_CONFIG_STATE (0xffffffffef100002ULL) -#define VFIO_MIG_FLAG_DEV_SETUP_STATE (0xffffffffef100003ULL) -#define VFIO_MIG_FLAG_DEV_DATA_STATE (0xffffffffef100004ULL) -#define VFIO_MIG_FLAG_DEV_INIT_DATA_SENT (0xffffffffef100005ULL) - -enum { - VFIO_DEVICE_TYPE_PCI = 0, - VFIO_DEVICE_TYPE_PLATFORM = 1, - VFIO_DEVICE_TYPE_CCW = 2, - VFIO_DEVICE_TYPE_AP = 3, -}; - -typedef struct VFIOMmap { - MemoryRegion mem; - void *mmap; - off_t offset; - size_t size; -} VFIOMmap; - -typedef struct VFIORegion { - struct VFIODevice *vbasedev; - off_t fd_offset; /* offset of region within device fd */ - MemoryRegion *mem; /* slow, read/write access */ - size_t size; - uint32_t flags; /* VFIO region flags (rd/wr/mmap) */ - uint32_t nr_mmaps; - VFIOMmap *mmaps; - uint8_t nr; /* cache the region number for debug */ -} VFIORegion; - -typedef struct VFIOMultifd VFIOMultifd; - -typedef struct VFIOMigration { - struct VFIODevice *vbasedev; - VMChangeStateEntry *vm_state; - NotifierWithReturn migration_state; - uint32_t device_state; - int data_fd; - void *data_buffer; - size_t data_buffer_size; - uint64_t mig_flags; - uint64_t precopy_init_size; - uint64_t precopy_dirty_size; - bool multifd_transfer; - VFIOMultifd *multifd; - bool initial_data_sent; - - bool event_save_iterate_started; - bool event_precopy_empty_hit; -} VFIOMigration; - -struct VFIOGroup; - -typedef struct VFIOContainer { - VFIOContainerBase bcontainer; - int fd; /* /dev/vfio/vfio, empowered by the attached groups */ - unsigned iommu_type; - QLIST_HEAD(, VFIOGroup) group_list; -} VFIOContainer; - -OBJECT_DECLARE_SIMPLE_TYPE(VFIOContainer, VFIO_IOMMU_LEGACY); - -typedef struct VFIOHostDMAWindow { - hwaddr min_iova; - hwaddr max_iova; - uint64_t iova_pgsizes; - QLIST_ENTRY(VFIOHostDMAWindow) hostwin_next; -} VFIOHostDMAWindow; - -typedef struct IOMMUFDBackend IOMMUFDBackend; - -typedef struct VFIOIOASHwpt { - uint32_t hwpt_id; - uint32_t hwpt_flags; - QLIST_HEAD(, VFIODevice) device_list; - QLIST_ENTRY(VFIOIOASHwpt) next; -} VFIOIOASHwpt; - -typedef struct VFIOIOMMUFDContainer { - VFIOContainerBase bcontainer; - IOMMUFDBackend *be; - uint32_t ioas_id; - QLIST_HEAD(, VFIOIOASHwpt) hwpt_list; -} VFIOIOMMUFDContainer; - -OBJECT_DECLARE_SIMPLE_TYPE(VFIOIOMMUFDContainer, VFIO_IOMMU_IOMMUFD); - -typedef struct VFIODeviceOps VFIODeviceOps; - -typedef struct VFIODevice { - QLIST_ENTRY(VFIODevice) next; - QLIST_ENTRY(VFIODevice) container_next; - QLIST_ENTRY(VFIODevice) global_next; - struct VFIOGroup *group; - VFIOContainerBase *bcontainer; - char *sysfsdev; - char *name; - DeviceState *dev; - int fd; - int type; - bool mdev; - bool reset_works; - bool needs_reset; - bool no_mmap; - bool ram_block_discard_allowed; - OnOffAuto enable_migration; - OnOffAuto migration_multifd_transfer; - bool migration_events; - VFIODeviceOps *ops; - unsigned int num_irqs; - unsigned int num_regions; - unsigned int flags; - VFIOMigration *migration; - Error *migration_blocker; - OnOffAuto pre_copy_dirty_page_tracking; - OnOffAuto device_dirty_page_tracking; - bool dirty_pages_supported; - bool dirty_tracking; /* Protected by BQL */ - bool iommu_dirty_tracking; - HostIOMMUDevice *hiod; - int devid; - IOMMUFDBackend *iommufd; - VFIOIOASHwpt *hwpt; - QLIST_ENTRY(VFIODevice) hwpt_next; -} VFIODevice; - -struct VFIODeviceOps { - void (*vfio_compute_needs_reset)(VFIODevice *vdev); - int (*vfio_hot_reset_multi)(VFIODevice *vdev); - void (*vfio_eoi)(VFIODevice *vdev); - Object *(*vfio_get_object)(VFIODevice *vdev); - - /** - * @vfio_save_config - * - * Save device config state - * - * @vdev: #VFIODevice for which to save the config - * @f: #QEMUFile where to send the data - * @errp: pointer to Error*, to store an error if it happens. - * - * Returns zero to indicate success and negative for error - */ - int (*vfio_save_config)(VFIODevice *vdev, QEMUFile *f, Error **errp); - - /** - * @vfio_load_config - * - * Load device config state - * - * @vdev: #VFIODevice for which to load the config - * @f: #QEMUFile where to get the data - * - * Returns zero to indicate success and negative for error - */ - int (*vfio_load_config)(VFIODevice *vdev, QEMUFile *f); -}; - -typedef struct VFIOGroup { - int fd; - int groupid; - VFIOContainer *container; - QLIST_HEAD(, VFIODevice) device_list; - QLIST_ENTRY(VFIOGroup) next; - QLIST_ENTRY(VFIOGroup) container_next; - bool ram_block_discard_allowed; -} VFIOGroup; - -#define TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO TYPE_HOST_IOMMU_DEVICE "-legacy-vfio" -#define TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO \ - TYPE_HOST_IOMMU_DEVICE_IOMMUFD "-vfio" - -typedef struct VFIODMABuf { - QemuDmaBuf *buf; - uint32_t pos_x, pos_y, pos_updates; - uint32_t hot_x, hot_y, hot_updates; - int dmabuf_id; - QTAILQ_ENTRY(VFIODMABuf) next; -} VFIODMABuf; - -typedef struct VFIODisplay { - QemuConsole *con; - RAMFBState *ramfb; - struct vfio_region_info *edid_info; - struct vfio_region_gfx_edid *edid_regs; - uint8_t *edid_blob; - QEMUTimer *edid_link_timer; - struct { - VFIORegion buffer; - DisplaySurface *surface; - } region; - struct { - QTAILQ_HEAD(, VFIODMABuf) bufs; - VFIODMABuf *primary; - VFIODMABuf *cursor; - } dmabuf; -} VFIODisplay; - -VFIOAddressSpace *vfio_get_address_space(AddressSpace *as); -void vfio_put_address_space(VFIOAddressSpace *space); -void vfio_address_space_insert(VFIOAddressSpace *space, - VFIOContainerBase *bcontainer); - -void vfio_disable_irqindex(VFIODevice *vbasedev, int index); -void vfio_unmask_single_irqindex(VFIODevice *vbasedev, int index); -void vfio_mask_single_irqindex(VFIODevice *vbasedev, int index); -bool vfio_set_irq_signaling(VFIODevice *vbasedev, int index, int subindex, - int action, int fd, Error **errp); -void vfio_region_write(void *opaque, hwaddr addr, - uint64_t data, unsigned size); -uint64_t vfio_region_read(void *opaque, - hwaddr addr, unsigned size); -int vfio_region_setup(Object *obj, VFIODevice *vbasedev, VFIORegion *region, - int index, const char *name); -int vfio_region_mmap(VFIORegion *region); -void vfio_region_mmaps_set_enabled(VFIORegion *region, bool enabled); -void vfio_region_unmap(VFIORegion *region); -void vfio_region_exit(VFIORegion *region); -void vfio_region_finalize(VFIORegion *region); -void vfio_reset_handler(void *opaque); -struct vfio_device_info *vfio_get_device_info(int fd); -bool vfio_device_is_mdev(VFIODevice *vbasedev); -bool vfio_device_hiod_realize(VFIODevice *vbasedev, Error **errp); -bool vfio_attach_device(char *name, VFIODevice *vbasedev, - AddressSpace *as, Error **errp); -void vfio_detach_device(VFIODevice *vbasedev); -VFIODevice *vfio_get_vfio_device(Object *obj); - -int vfio_kvm_device_add_fd(int fd, Error **errp); -int vfio_kvm_device_del_fd(int fd, Error **errp); - -bool vfio_cpr_register_container(VFIOContainerBase *bcontainer, Error **errp); -void vfio_cpr_unregister_container(VFIOContainerBase *bcontainer); - -extern const MemoryRegionOps vfio_region_ops; -typedef QLIST_HEAD(VFIOGroupList, VFIOGroup) VFIOGroupList; -typedef QLIST_HEAD(VFIODeviceList, VFIODevice) VFIODeviceList; -extern VFIOGroupList vfio_group_list; -extern VFIODeviceList vfio_device_list; -extern const MemoryListener vfio_memory_listener; -extern int vfio_kvm_device_fd; - -bool vfio_mig_active(void); -int vfio_block_multiple_devices_migration(VFIODevice *vbasedev, Error **errp); -void vfio_unblock_multiple_devices_migration(void); -bool vfio_viommu_preset(VFIODevice *vbasedev); -int64_t vfio_mig_bytes_transferred(void); -void vfio_reset_bytes_transferred(void); -void vfio_mig_add_bytes_transferred(unsigned long val); -bool vfio_device_state_is_running(VFIODevice *vbasedev); -bool vfio_device_state_is_precopy(VFIODevice *vbasedev); - -int vfio_save_device_config_state(QEMUFile *f, void *opaque, Error **errp); -int vfio_load_device_config_state(QEMUFile *f, void *opaque); - -#ifdef CONFIG_LINUX -int vfio_get_region_info(VFIODevice *vbasedev, int index, - struct vfio_region_info **info); -int vfio_get_dev_region_info(VFIODevice *vbasedev, uint32_t type, - uint32_t subtype, struct vfio_region_info **info); -bool vfio_has_region_cap(VFIODevice *vbasedev, int region, uint16_t cap_type); -struct vfio_info_cap_header * -vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id); -bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info, - unsigned int *avail); -struct vfio_info_cap_header * -vfio_get_device_info_cap(struct vfio_device_info *info, uint16_t id); -struct vfio_info_cap_header * -vfio_get_cap(void *ptr, uint32_t cap_offset, uint16_t id); - -int vfio_migration_set_state(VFIODevice *vbasedev, - enum vfio_device_mig_state new_state, - enum vfio_device_mig_state recover_state, - Error **errp); -#endif - -bool vfio_migration_realize(VFIODevice *vbasedev, Error **errp); -void vfio_migration_exit(VFIODevice *vbasedev); - -int vfio_bitmap_alloc(VFIOBitmap *vbmap, hwaddr size); -bool vfio_devices_all_dirty_tracking_started( - const VFIOContainerBase *bcontainer); -bool -vfio_devices_all_device_dirty_tracking(const VFIOContainerBase *bcontainer); -int vfio_devices_query_dirty_bitmap(const VFIOContainerBase *bcontainer, - VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp); -int vfio_get_dirty_bitmap(const VFIOContainerBase *bcontainer, uint64_t iova, - uint64_t size, ram_addr_t ram_addr, Error **errp); - -/* Returns 0 on success, or a negative errno. */ -bool vfio_device_get_name(VFIODevice *vbasedev, Error **errp); -void vfio_device_set_fd(VFIODevice *vbasedev, const char *str, Error **errp); -void vfio_device_init(VFIODevice *vbasedev, int type, VFIODeviceOps *ops, - DeviceState *dev, bool ram_discard); -int vfio_device_get_aw_bits(VFIODevice *vdev); -#endif /* HW_VFIO_VFIO_COMMON_H */ |