diff options
Diffstat (limited to 'include/hw/vfio/vfio-container-base.h')
| -rw-r--r-- | include/hw/vfio/vfio-container-base.h | 121 |
1 files changed, 109 insertions, 12 deletions
diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h index 4cff994..3cd86ec 100644 --- a/include/hw/vfio/vfio-container-base.h +++ b/include/hw/vfio/vfio-container-base.h @@ -13,7 +13,7 @@ #ifndef HW_VFIO_VFIO_CONTAINER_BASE_H #define HW_VFIO_VFIO_CONTAINER_BASE_H -#include "exec/memory.h" +#include "system/memory.h" typedef struct VFIODevice VFIODevice; typedef struct VFIOIOMMUClass VFIOIOMMUClass; @@ -71,12 +71,17 @@ typedef struct VFIORamDiscardListener { QLIST_ENTRY(VFIORamDiscardListener) next; } VFIORamDiscardListener; +VFIOAddressSpace *vfio_address_space_get(AddressSpace *as); +void vfio_address_space_put(VFIOAddressSpace *space); +void vfio_address_space_insert(VFIOAddressSpace *space, + VFIOContainerBase *bcontainer); + int vfio_container_dma_map(VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - void *vaddr, bool readonly); + void *vaddr, bool readonly, MemoryRegion *mr); int vfio_container_dma_unmap(VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - IOMMUTLBEntry *iotlb); + IOMMUTLBEntry *iotlb, bool unmap_all); bool vfio_container_add_section_window(VFIOContainerBase *bcontainer, MemoryRegionSection *section, Error **errp); @@ -84,8 +89,12 @@ void vfio_container_del_section_window(VFIOContainerBase *bcontainer, MemoryRegionSection *section); int vfio_container_set_dirty_page_tracking(VFIOContainerBase *bcontainer, bool start, Error **errp); +bool vfio_container_dirty_tracking_is_started( + const VFIOContainerBase *bcontainer); +bool vfio_container_devices_dirty_tracking_is_supported( + const VFIOContainerBase *bcontainer); int vfio_container_query_dirty_bitmap(const VFIOContainerBase *bcontainer, - VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp); + uint64_t iova, uint64_t size, ram_addr_t ram_addr, Error **errp); GList *vfio_container_get_iova_ranges(const VFIOContainerBase *bcontainer); @@ -100,25 +109,106 @@ vfio_container_get_page_size_mask(const VFIOContainerBase *bcontainer) #define TYPE_VFIO_IOMMU_LEGACY TYPE_VFIO_IOMMU "-legacy" #define TYPE_VFIO_IOMMU_SPAPR TYPE_VFIO_IOMMU "-spapr" #define TYPE_VFIO_IOMMU_IOMMUFD TYPE_VFIO_IOMMU "-iommufd" +#define TYPE_VFIO_IOMMU_USER TYPE_VFIO_IOMMU "-user" OBJECT_DECLARE_TYPE(VFIOContainerBase, VFIOIOMMUClass, VFIO_IOMMU) struct VFIOIOMMUClass { ObjectClass parent_class; - /* Properties */ - const char *hiod_typename; - - /* basic feature */ + /** + * @setup + * + * Perform basic setup of the container, including configuring IOMMU + * capabilities, IOVA ranges, supported page sizes, etc. + * + * @bcontainer: #VFIOContainerBase + * @errp: pointer to Error*, to store an error if it happens. + * + * Returns true to indicate success and false for error. + */ bool (*setup)(VFIOContainerBase *bcontainer, Error **errp); + + /** + * @listener_begin + * + * Called at the beginning of an address space update transaction. + * See #MemoryListener. + * + * @bcontainer: #VFIOContainerBase + */ + void (*listener_begin)(VFIOContainerBase *bcontainer); + + /** + * @listener_commit + * + * Called at the end of an address space update transaction, + * See #MemoryListener. + * + * @bcontainer: #VFIOContainerBase + */ + void (*listener_commit)(VFIOContainerBase *bcontainer); + + /** + * @dma_map + * + * Map an address range into the container. Note that the memory region is + * referenced within an RCU read lock region across this call. + * + * @bcontainer: #VFIOContainerBase to use + * @iova: start address to map + * @size: size of the range to map + * @vaddr: process virtual address of mapping + * @readonly: true if mapping should be readonly + * @mr: the memory region for this mapping + * + * Returns 0 to indicate success and -errno otherwise. + */ int (*dma_map)(const VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - void *vaddr, bool readonly); + void *vaddr, bool readonly, MemoryRegion *mr); + /** + * @dma_unmap + * + * Unmap an address range from the container. + * + * @bcontainer: #VFIOContainerBase to use for unmap + * @iova: start address to unmap + * @size: size of the range to unmap + * @iotlb: The IOMMU TLB mapping entry (or NULL) + * @unmap_all: if set, unmap the entire address space + * + * Returns 0 to indicate success and -errno otherwise. + */ int (*dma_unmap)(const VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, - IOMMUTLBEntry *iotlb); + IOMMUTLBEntry *iotlb, bool unmap_all); + + + /** + * @attach_device + * + * Associate the given device with a container and do some related + * initialization of the device context. + * + * @name: name of the device + * @vbasedev: the device + * @as: address space to use + * @errp: pointer to Error*, to store an error if it happens. + * + * Returns true to indicate success and false for error. + */ bool (*attach_device)(const char *name, VFIODevice *vbasedev, AddressSpace *as, Error **errp); + + /* + * @detach_device + * + * Detach the given device from its container and clean up any necessary + * state. + * + * @vbasedev: the device to disassociate + */ void (*detach_device)(VFIODevice *vbasedev); /* migration feature */ @@ -133,7 +223,7 @@ struct VFIOIOMMUClass { * @start: indicates whether to start or stop dirty pages tracking * @errp: pointer to Error*, to store an error if it happens. * - * Returns zero to indicate success and negative for error + * Returns zero to indicate success and negative for error. */ int (*set_dirty_page_tracking)(const VFIOContainerBase *bcontainer, bool start, Error **errp); @@ -148,7 +238,7 @@ struct VFIOIOMMUClass { * @size: size of iova range * @errp: pointer to Error*, to store an error if it happens. * - * Returns zero to indicate success and negative for error + * Returns zero to indicate success and negative for error. */ int (*query_dirty_bitmap)(const VFIOContainerBase *bcontainer, VFIOBitmap *vbmap, hwaddr iova, hwaddr size, Error **errp); @@ -163,4 +253,11 @@ struct VFIOIOMMUClass { MemoryRegionSection *section); void (*release)(VFIOContainerBase *bcontainer); }; + +VFIORamDiscardListener *vfio_find_ram_discard_listener( + VFIOContainerBase *bcontainer, MemoryRegionSection *section); + +void vfio_container_region_add(VFIOContainerBase *bcontainer, + MemoryRegionSection *section, bool cpr_remap); + #endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */ |