diff options
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/iommufd.c | 58 | ||||
| -rw-r--r-- | backends/trace-events | 1 |
2 files changed, 59 insertions, 0 deletions
diff --git a/backends/iommufd.c b/backends/iommufd.c index b73f75c..c2c47ab 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -311,6 +311,62 @@ bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, return true; } +bool iommufd_backend_invalidate_cache(IOMMUFDBackend *be, uint32_t id, + uint32_t data_type, uint32_t entry_len, + uint32_t *entry_num, void *data, + Error **errp) +{ + int ret, fd = be->fd; + uint32_t total_entries = *entry_num; + struct iommu_hwpt_invalidate cache = { + .size = sizeof(cache), + .hwpt_id = id, + .data_type = data_type, + .entry_len = entry_len, + .entry_num = total_entries, + .data_uptr = (uintptr_t)data, + }; + + ret = ioctl(fd, IOMMU_HWPT_INVALIDATE, &cache); + trace_iommufd_backend_invalidate_cache(fd, id, data_type, entry_len, + total_entries, cache.entry_num, + (uintptr_t)data, ret ? errno : 0); + *entry_num = cache.entry_num; + + if (ret) { + error_setg_errno(errp, errno, "IOMMU_HWPT_INVALIDATE failed:" + " total %d entries, processed %d entries", + total_entries, cache.entry_num); + } else if (total_entries != cache.entry_num) { + error_setg(errp, "IOMMU_HWPT_INVALIDATE succeed but with unprocessed" + " entries: total %d entries, processed %d entries." + " Kernel BUG?!", total_entries, cache.entry_num); + return false; + } + + return !ret; +} + +bool host_iommu_device_iommufd_attach_hwpt(HostIOMMUDeviceIOMMUFD *idev, + uint32_t hwpt_id, Error **errp) +{ + HostIOMMUDeviceIOMMUFDClass *idevc = + HOST_IOMMU_DEVICE_IOMMUFD_GET_CLASS(idev); + + g_assert(idevc->attach_hwpt); + return idevc->attach_hwpt(idev, hwpt_id, errp); +} + +bool host_iommu_device_iommufd_detach_hwpt(HostIOMMUDeviceIOMMUFD *idev, + Error **errp) +{ + HostIOMMUDeviceIOMMUFDClass *idevc = + HOST_IOMMU_DEVICE_IOMMUFD_GET_CLASS(idev); + + g_assert(idevc->detach_hwpt); + return idevc->detach_hwpt(idev, errp); +} + static int hiod_iommufd_get_cap(HostIOMMUDevice *hiod, int cap, Error **errp) { HostIOMMUDeviceCaps *caps = &hiod->caps; @@ -349,6 +405,8 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD, .parent = TYPE_HOST_IOMMU_DEVICE, + .instance_size = sizeof(HostIOMMUDeviceIOMMUFD), + .class_size = sizeof(HostIOMMUDeviceIOMMUFDClass), .class_init = hiod_iommufd_class_init, .abstract = true, } diff --git a/backends/trace-events b/backends/trace-events index 40811a3..7278214 100644 --- a/backends/trace-events +++ b/backends/trace-events @@ -18,3 +18,4 @@ iommufd_backend_alloc_hwpt(int iommufd, uint32_t dev_id, uint32_t pt_id, uint32_ iommufd_backend_free_id(int iommufd, uint32_t id, int ret) " iommufd=%d id=%d (%d)" iommufd_backend_set_dirty(int iommufd, uint32_t hwpt_id, bool start, int ret) " iommufd=%d hwpt=%u enable=%d (%d)" iommufd_backend_get_dirty_bitmap(int iommufd, uint32_t hwpt_id, uint64_t iova, uint64_t size, uint64_t page_size, int ret) " iommufd=%d hwpt=%u iova=0x%"PRIx64" size=0x%"PRIx64" page_size=0x%"PRIx64" (%d)" +iommufd_backend_invalidate_cache(int iommufd, uint32_t id, uint32_t data_type, uint32_t entry_len, uint32_t entry_num, uint32_t done_num, uint64_t data_ptr, int ret) " iommufd=%d id=%u data_type=%u entry_len=%u entry_num=%u done_num=%u data_ptr=0x%"PRIx64" (%d)" |