(&self)
| 195 | } |
| 196 | |
| 197 | pub fn build_tables(&self) -> Result<Tables> { |
| 198 | let tpl = self.create_tables()?; |
| 199 | // Find all required ACPI tables |
| 200 | let (dsdt_offset, dsdt_csum, dsdt_len) = find_acpi_table(&tpl, "DSDT")?; |
| 201 | let (facp_offset, facp_csum, facp_len) = find_acpi_table(&tpl, "FACP")?; |
| 202 | let (apic_offset, apic_csum, apic_len) = find_acpi_table(&tpl, "APIC")?; |
| 203 | let (mcfg_offset, mcfg_csum, mcfg_len) = find_acpi_table(&tpl, "MCFG")?; |
| 204 | let (waet_offset, waet_csum, waet_len) = find_acpi_table(&tpl, "WAET")?; |
| 205 | let (rsdt_offset, rsdt_csum, rsdt_len) = find_acpi_table(&tpl, "RSDT")?; |
| 206 | |
| 207 | // Generate RSDP |
| 208 | let mut rsdp = Vec::with_capacity(20); |
| 209 | rsdp.extend_from_slice(b"RSD PTR "); // Signature |
| 210 | rsdp.push(0x00); // Checksum placeholder |
| 211 | rsdp.extend_from_slice(b"BOCHS "); // OEM ID |
| 212 | rsdp.push(0x00); // Revision |
| 213 | rsdp.extend_from_slice(&rsdt_offset.to_le_bytes()); // RSDT Address |
| 214 | |
| 215 | // Generate table loader commands |
| 216 | let mut ldr = TableLoader::new(); |
| 217 | ldr.append(LoaderCmd::Allocate { |
| 218 | file: "etc/acpi/rsdp", |
| 219 | alignment: 16, |
| 220 | zone: 2, |
| 221 | }); |
| 222 | ldr.append(LoaderCmd::Allocate { |
| 223 | file: "etc/acpi/tables", |
| 224 | alignment: 64, |
| 225 | zone: 1, |
| 226 | }); |
| 227 | ldr.append(LoaderCmd::AddChecksum { |
| 228 | file: "etc/acpi/tables", |
| 229 | result_offset: dsdt_csum, |
| 230 | start: dsdt_offset, |
| 231 | length: dsdt_len, |
| 232 | }); |
| 233 | ldr.append(LoaderCmd::AddPtr { |
| 234 | pointer_file: "etc/acpi/tables", |
| 235 | pointee_file: "etc/acpi/tables", |
| 236 | pointer_offset: facp_offset + 36, |
| 237 | pointer_size: 4, |
| 238 | }); |
| 239 | ldr.append(LoaderCmd::AddPtr { |
| 240 | pointer_file: "etc/acpi/tables", |
| 241 | pointee_file: "etc/acpi/tables", |
| 242 | pointer_offset: facp_offset + 40, |
| 243 | pointer_size: 4, |
| 244 | }); |
| 245 | ldr.append(LoaderCmd::AddPtr { |
| 246 | pointer_file: "etc/acpi/tables", |
| 247 | pointee_file: "etc/acpi/tables", |
| 248 | pointer_offset: facp_offset + 140, |
| 249 | pointer_size: 8, |
| 250 | }); |
| 251 | ldr.append(LoaderCmd::AddChecksum { |
| 252 | file: "etc/acpi/tables", |
| 253 | result_offset: facp_csum, |
| 254 | start: facp_offset, |
no test coverage detected