diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gvt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.h | 128 |
1 files changed, 81 insertions, 47 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 0ebffc327528..03ecffc2ba56 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -34,11 +34,13 @@ #define _GVT_H_ #include <uapi/linux/pci_regs.h> +#include <linux/kvm_host.h> +#include <linux/vfio.h> #include "i915_drv.h" +#include "intel_gvt.h" #include "debug.h" -#include "hypercall.h" #include "mmio.h" #include "reg.h" #include "interrupt.h" @@ -56,15 +58,6 @@ #define GVT_MAX_VGPU 8 -struct intel_gvt_host { - struct device *dev; - bool initialized; - int hypervisor_type; - const struct intel_gvt_mpt *mpt; -}; - -extern struct intel_gvt_host intel_gvt_host; - /* Describe per-platform limitations. */ struct intel_gvt_device_info { u32 max_support_vgpus; @@ -176,12 +169,14 @@ struct intel_vgpu_submission { } last_ctx[I915_NUM_ENGINES]; }; +#define KVMGT_DEBUGFS_FILENAME "kvmgt_nr_cache_entries" + struct intel_vgpu { struct intel_gvt *gvt; struct mutex vgpu_lock; int id; - unsigned long handle; /* vGPU handle used by hypervisor MPT modules */ bool active; + bool attached; bool pv_notified; bool failsafe; unsigned int resetting_eng; @@ -209,21 +204,40 @@ struct intel_vgpu { struct dentry *debugfs; - /* Hypervisor-specific device state. */ - void *vdev; - struct list_head dmabuf_obj_list_head; struct mutex dmabuf_lock; struct idr object_idr; struct intel_vgpu_vblank_timer vblank_timer; u32 scan_nonprivbb; -}; -static inline void *intel_vgpu_vdev(struct intel_vgpu *vgpu) -{ - return vgpu->vdev; -} + struct vfio_device vfio_device; + struct vfio_region *region; + int num_regions; + struct eventfd_ctx *intx_trigger; + struct eventfd_ctx *msi_trigger; + + /* + * Two caches are used to avoid mapping duplicated pages (eg. + * scratch pages). This help to reduce dma setup overhead. + */ + struct rb_root gfn_cache; + struct rb_root dma_addr_cache; + unsigned long nr_cache_entries; + struct mutex cache_lock; + + struct notifier_block iommu_notifier; + struct notifier_block group_notifier; + struct kvm *kvm; + struct work_struct release_work; + atomic_t released; + struct vfio_group *vfio_group; + + struct kvm_page_track_notifier_node track_node; +#define NR_BKT (1 << 18) + struct hlist_head ptable[NR_BKT]; +#undef NR_BKT +}; /* validating GM healthy status*/ #define vgpu_is_vm_unhealthy(ret_val) \ @@ -272,7 +286,7 @@ struct intel_gvt_mmio { /* Value of command write of this reg needs to be patched */ #define F_CMD_WRITE_PATCH (1 << 8) - const struct gvt_mmio_block *mmio_block; + struct gvt_mmio_block *mmio_block; unsigned int num_mmio_block; DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS); @@ -428,7 +442,6 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt); #define RING_CTX_SIZE 320 struct intel_vgpu_creation_params { - __u64 handle; __u64 low_gm_sz; /* in MB */ __u64 high_gm_sz; /* in MB */ __u64 fence_sz; @@ -496,6 +509,9 @@ void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu); void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu); void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu); +int intel_gvt_set_opregion(struct intel_vgpu *vgpu); +int intel_gvt_set_edid(struct intel_vgpu *vgpu, int port_num); + /* validating GM functions */ #define vgpu_gmadr_is_aperture(vgpu, gmadr) \ ((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \ @@ -557,30 +573,7 @@ void populate_pvinfo_page(struct intel_vgpu *vgpu); int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload); void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason); - -struct intel_gvt_ops { - int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *, - unsigned int); - int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *, - unsigned int); - int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *, - unsigned int); - int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *, - unsigned int); - struct intel_vgpu *(*vgpu_create)(struct intel_gvt *, - struct intel_vgpu_type *); - void (*vgpu_destroy)(struct intel_vgpu *vgpu); - void (*vgpu_release)(struct intel_vgpu *vgpu); - void (*vgpu_reset)(struct intel_vgpu *); - void (*vgpu_activate)(struct intel_vgpu *); - void (*vgpu_deactivate)(struct intel_vgpu *); - int (*vgpu_query_plane)(struct intel_vgpu *vgpu, void *); - int (*vgpu_get_dmabuf)(struct intel_vgpu *vgpu, unsigned int); - int (*write_protect_handler)(struct intel_vgpu *, u64, void *, - unsigned int); - void (*emulate_hotplug)(struct intel_vgpu *vgpu, bool connected); -}; - +void intel_vgpu_detach_regions(struct intel_vgpu *vgpu); enum { GVT_FAILSAFE_UNSUPPORTED_GUEST, @@ -724,13 +717,54 @@ static inline bool intel_gvt_mmio_is_cmd_write_patch( return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_WRITE_PATCH; } +/** + * intel_gvt_read_gpa - copy data from GPA to host data buffer + * @vgpu: a vGPU + * @gpa: guest physical address + * @buf: host data buffer + * @len: data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +static inline int intel_gvt_read_gpa(struct intel_vgpu *vgpu, unsigned long gpa, + void *buf, unsigned long len) +{ + if (!vgpu->attached) + return -ESRCH; + return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, false); +} + +/** + * intel_gvt_write_gpa - copy data from host data buffer to GPA + * @vgpu: a vGPU + * @gpa: guest physical address + * @buf: host data buffer + * @len: data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +static inline int intel_gvt_write_gpa(struct intel_vgpu *vgpu, + unsigned long gpa, void *buf, unsigned long len) +{ + if (!vgpu->attached) + return -ESRCH; + return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, true); +} + void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu); void intel_gvt_debugfs_init(struct intel_gvt *gvt); void intel_gvt_debugfs_clean(struct intel_gvt *gvt); -int intel_gvt_pm_resume(struct intel_gvt *gvt); +int intel_gvt_page_track_add(struct intel_vgpu *info, u64 gfn); +int intel_gvt_page_track_remove(struct intel_vgpu *info, u64 gfn); +int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr); +int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, + unsigned long size, dma_addr_t *dma_addr); +void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu, + dma_addr_t dma_addr); #include "trace.h" -#include "mpt.h" #endif |