2  * Block driver for Hyper-V VHDX Images
11  *      https://www.microsoft.com/en-us/download/details.aspx?id=34750
14  * See the COPYING.LIB file in the top-level directory.
24  * All the VHDX formats on disk are little endian - the following
37     h->signature = le32_to_cpu(h->signature);  in vhdx_header_le_import()
38     h->checksum = le32_to_cpu(h->checksum);  in vhdx_header_le_import()
39     h->sequence_number = le64_to_cpu(h->sequence_number);  in vhdx_header_le_import()
41     leguid_to_cpus(&h->file_write_guid);  in vhdx_header_le_import()
42     leguid_to_cpus(&h->data_write_guid);  in vhdx_header_le_import()
43     leguid_to_cpus(&h->log_guid);  in vhdx_header_le_import()
45     h->log_version = le16_to_cpu(h->log_version);  in vhdx_header_le_import()
46     h->version = le16_to_cpu(h->version);  in vhdx_header_le_import()
47     h->log_length = le32_to_cpu(h->log_length);  in vhdx_header_le_import()
48     h->log_offset = le64_to_cpu(h->log_offset);  in vhdx_header_le_import()
56     new_h->signature       = cpu_to_le32(orig_h->signature);  in vhdx_header_le_export()
57     new_h->checksum        = cpu_to_le32(orig_h->checksum);  in vhdx_header_le_export()
58     new_h->sequence_number = cpu_to_le64(orig_h->sequence_number);  in vhdx_header_le_export()
60     new_h->file_write_guid = orig_h->file_write_guid;  in vhdx_header_le_export()
61     new_h->data_write_guid = orig_h->data_write_guid;  in vhdx_header_le_export()
62     new_h->log_guid        = orig_h->log_guid;  in vhdx_header_le_export()
64     cpu_to_leguids(&new_h->file_write_guid);  in vhdx_header_le_export()
65     cpu_to_leguids(&new_h->data_write_guid);  in vhdx_header_le_export()
66     cpu_to_leguids(&new_h->log_guid);  in vhdx_header_le_export()
68     new_h->log_version     = cpu_to_le16(orig_h->log_version);  in vhdx_header_le_export()
69     new_h->version         = cpu_to_le16(orig_h->version);  in vhdx_header_le_export()
70     new_h->log_length      = cpu_to_le32(orig_h->log_length);  in vhdx_header_le_export()
71     new_h->log_offset      = cpu_to_le64(orig_h->log_offset);  in vhdx_header_le_export()
82     d->signature = le32_to_cpu(d->signature);  in vhdx_log_desc_le_import()
83     d->file_offset = le64_to_cpu(d->file_offset);  in vhdx_log_desc_le_import()
84     d->sequence_number = le64_to_cpu(d->sequence_number);  in vhdx_log_desc_le_import()
91     d->signature = cpu_to_le32(d->signature);  in vhdx_log_desc_le_export()
92     d->trailing_bytes = cpu_to_le32(d->trailing_bytes);  in vhdx_log_desc_le_export()
93     d->leading_bytes = cpu_to_le64(d->leading_bytes);  in vhdx_log_desc_le_export()
94     d->file_offset = cpu_to_le64(d->file_offset);  in vhdx_log_desc_le_export()
95     d->sequence_number = cpu_to_le64(d->sequence_number);  in vhdx_log_desc_le_export()
102     d->data_signature = le32_to_cpu(d->data_signature);  in vhdx_log_data_le_import()
103     d->sequence_high = le32_to_cpu(d->sequence_high);  in vhdx_log_data_le_import()
104     d->sequence_low = le32_to_cpu(d->sequence_low);  in vhdx_log_data_le_import()
111     d->data_signature = cpu_to_le32(d->data_signature);  in vhdx_log_data_le_export()
112     d->sequence_high = cpu_to_le32(d->sequence_high);  in vhdx_log_data_le_export()
113     d->sequence_low = cpu_to_le32(d->sequence_low);  in vhdx_log_data_le_export()
120     hdr->signature = le32_to_cpu(hdr->signature);  in vhdx_log_entry_hdr_le_import()
121     hdr->checksum = le32_to_cpu(hdr->checksum);  in vhdx_log_entry_hdr_le_import()
122     hdr->entry_length = le32_to_cpu(hdr->entry_length);  in vhdx_log_entry_hdr_le_import()
123     hdr->tail = le32_to_cpu(hdr->tail);  in vhdx_log_entry_hdr_le_import()
124     hdr->sequence_number = le64_to_cpu(hdr->sequence_number);  in vhdx_log_entry_hdr_le_import()
125     hdr->descriptor_count = le32_to_cpu(hdr->descriptor_count);  in vhdx_log_entry_hdr_le_import()
126     leguid_to_cpus(&hdr->log_guid);  in vhdx_log_entry_hdr_le_import()
127     hdr->flushed_file_offset = le64_to_cpu(hdr->flushed_file_offset);  in vhdx_log_entry_hdr_le_import()
128     hdr->last_file_offset = le64_to_cpu(hdr->last_file_offset);  in vhdx_log_entry_hdr_le_import()
135     hdr->signature = cpu_to_le32(hdr->signature);  in vhdx_log_entry_hdr_le_export()
136     hdr->checksum = cpu_to_le32(hdr->checksum);  in vhdx_log_entry_hdr_le_export()
137     hdr->entry_length = cpu_to_le32(hdr->entry_length);  in vhdx_log_entry_hdr_le_export()
138     hdr->tail = cpu_to_le32(hdr->tail);  in vhdx_log_entry_hdr_le_export()
139     hdr->sequence_number = cpu_to_le64(hdr->sequence_number);  in vhdx_log_entry_hdr_le_export()
140     hdr->descriptor_count = cpu_to_le32(hdr->descriptor_count);  in vhdx_log_entry_hdr_le_export()
141     cpu_to_leguids(&hdr->log_guid);  in vhdx_log_entry_hdr_le_export()
142     hdr->flushed_file_offset = cpu_to_le64(hdr->flushed_file_offset);  in vhdx_log_entry_hdr_le_export()
143     hdr->last_file_offset = cpu_to_le64(hdr->last_file_offset);  in vhdx_log_entry_hdr_le_export()
152     hdr->signature = le32_to_cpu(hdr->signature);  in vhdx_region_header_le_import()
153     hdr->checksum = le32_to_cpu(hdr->checksum);  in vhdx_region_header_le_import()
154     hdr->entry_count = le32_to_cpu(hdr->entry_count);  in vhdx_region_header_le_import()
161     hdr->signature = cpu_to_le32(hdr->signature);  in vhdx_region_header_le_export()
162     hdr->checksum = cpu_to_le32(hdr->checksum);  in vhdx_region_header_le_export()
163     hdr->entry_count = cpu_to_le32(hdr->entry_count);  in vhdx_region_header_le_export()
166 void vhdx_region_entry_le_import(VHDXRegionTableEntry *e)  in vhdx_region_entry_le_import()  argument
168     assert(e != NULL);  in vhdx_region_entry_le_import()
170     leguid_to_cpus(&e->guid);  in vhdx_region_entry_le_import()
171     e->file_offset = le64_to_cpu(e->file_offset);  in vhdx_region_entry_le_import()
172     e->length = le32_to_cpu(e->length);  in vhdx_region_entry_le_import()
173     e->data_bits = le32_to_cpu(e->data_bits);  in vhdx_region_entry_le_import()
176 void vhdx_region_entry_le_export(VHDXRegionTableEntry *e)  in vhdx_region_entry_le_export()  argument
178     assert(e != NULL);  in vhdx_region_entry_le_export()
180     cpu_to_leguids(&e->guid);  in vhdx_region_entry_le_export()
181     e->file_offset = cpu_to_le64(e->file_offset);  in vhdx_region_entry_le_export()
182     e->length = cpu_to_le32(e->length);  in vhdx_region_entry_le_export()
183     e->data_bits = cpu_to_le32(e->data_bits);  in vhdx_region_entry_le_export()
192     hdr->signature = le64_to_cpu(hdr->signature);  in vhdx_metadata_header_le_import()
193     hdr->entry_count = le16_to_cpu(hdr->entry_count);  in vhdx_metadata_header_le_import()
200     hdr->signature = cpu_to_le64(hdr->signature);  in vhdx_metadata_header_le_export()
201     hdr->entry_count = cpu_to_le16(hdr->entry_count);  in vhdx_metadata_header_le_export()
204 void vhdx_metadata_entry_le_import(VHDXMetadataTableEntry *e)  in vhdx_metadata_entry_le_import()  argument
206     assert(e != NULL);  in vhdx_metadata_entry_le_import()
208     leguid_to_cpus(&e->item_id);  in vhdx_metadata_entry_le_import()
209     e->offset = le32_to_cpu(e->offset);  in vhdx_metadata_entry_le_import()
210     e->length = le32_to_cpu(e->length);  in vhdx_metadata_entry_le_import()
211     e->data_bits = le32_to_cpu(e->data_bits);  in vhdx_metadata_entry_le_import()
213 void vhdx_metadata_entry_le_export(VHDXMetadataTableEntry *e)  in vhdx_metadata_entry_le_export()  argument
215     assert(e != NULL);  in vhdx_metadata_entry_le_export()
217     cpu_to_leguids(&e->item_id);  in vhdx_metadata_entry_le_export()
218     e->offset = cpu_to_le32(e->offset);  in vhdx_metadata_entry_le_export()
219     e->length = cpu_to_le32(e->length);  in vhdx_metadata_entry_le_export()
220     e->data_bits = cpu_to_le32(e->data_bits);  in vhdx_metadata_entry_le_export()