pc: acpi-build: use aml_scope() for \_SB scope
prepares for incremental conversion of SSDT content to AML API Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -923,17 +923,18 @@ build_ssdt(GArray *table_data, GArray *linker,
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MachineState *machine = MACHINE(qdev_get_machine());
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uint32_t nr_mem = machine->ram_slots;
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unsigned acpi_cpus = guest_info->apic_id_limit;
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int ssdt_start = table_data->len;
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uint8_t *ssdt_ptr;
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Aml *ssdt, *sb_scope;
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int i;
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ssdt = init_aml_allocator();
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/* The current AML generator can cover the APIC ID range [0..255],
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* inclusive, for VCPU hotplug. */
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QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
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g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT);
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/* Copy header and patch values in the S3_ / S4_ / S5_ packages */
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ssdt_ptr = acpi_data_push(table_data, sizeof(ssdp_misc_aml));
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ssdt_ptr = acpi_data_push(ssdt->buf, sizeof(ssdp_misc_aml));
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memcpy(ssdt_ptr, ssdp_misc_aml, sizeof(ssdp_misc_aml));
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if (pm->s3_disabled) {
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ssdt_ptr[acpi_s3_name[0]] = 'X';
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@ -953,15 +954,11 @@ build_ssdt(GArray *table_data, GArray *linker,
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ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml),
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ssdt_mctrl_nr_slots[0], 32, nr_mem);
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sb_scope = aml_scope("_SB");
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{
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GArray *sb_scope = build_alloc_array();
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uint8_t op = 0x10; /* ScopeOp */
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build_append_namestring(sb_scope, "_SB");
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/* build Processor object for each processor */
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for (i = 0; i < acpi_cpus; i++) {
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uint8_t *proc = acpi_data_push(sb_scope, ACPI_PROC_SIZEOF);
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uint8_t *proc = acpi_data_push(sb_scope->buf, ACPI_PROC_SIZEOF);
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memcpy(proc, ACPI_PROC_AML, ACPI_PROC_SIZEOF);
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proc[ACPI_PROC_OFFSET_CPUHEX] = acpi_get_hex(i >> 4);
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proc[ACPI_PROC_OFFSET_CPUHEX+1] = acpi_get_hex(i);
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@ -973,11 +970,12 @@ build_ssdt(GArray *table_data, GArray *linker,
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* Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
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*/
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/* Arg0 = Processor ID = APIC ID */
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build_append_notify_method(sb_scope, "NTFY", "CP%0.02X", acpi_cpus);
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build_append_notify_method(sb_scope->buf, "NTFY",
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"CP%0.02X", acpi_cpus);
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/* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */
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build_append_byte(sb_scope, 0x08); /* NameOp */
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build_append_namestring(sb_scope, "CPON");
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build_append_byte(sb_scope->buf, 0x08); /* NameOp */
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build_append_namestring(sb_scope->buf, "CPON");
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{
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GArray *package = build_alloc_array();
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@ -1002,7 +1000,7 @@ build_ssdt(GArray *table_data, GArray *linker,
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}
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build_package(package, op);
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build_append_array(sb_scope, package);
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build_append_array(sb_scope->buf, package);
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build_free_array(package);
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}
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@ -1011,7 +1009,7 @@ build_ssdt(GArray *table_data, GArray *linker,
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/* build memory devices */
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for (i = 0; i < nr_mem; i++) {
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char id[3];
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uint8_t *mem = acpi_data_push(sb_scope, ACPI_MEM_SIZEOF);
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uint8_t *mem = acpi_data_push(sb_scope->buf, ACPI_MEM_SIZEOF);
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snprintf(id, sizeof(id), "%02X", i);
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memcpy(mem, ACPI_MEM_AML, ACPI_MEM_SIZEOF);
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@ -1022,7 +1020,7 @@ build_ssdt(GArray *table_data, GArray *linker,
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/* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
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* If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ...
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*/
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build_append_notify_method(sb_scope,
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build_append_notify_method(sb_scope->buf,
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stringify(MEMORY_SLOT_NOTIFY_METHOD),
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"MP%0.02X", nr_mem);
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}
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@ -1046,17 +1044,18 @@ build_ssdt(GArray *table_data, GArray *linker,
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build_pci_bus_end, &hotplug_state);
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}
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build_append_array(sb_scope, hotplug_state.device_table);
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build_append_array(sb_scope->buf, hotplug_state.device_table);
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build_pci_bus_state_cleanup(&hotplug_state);
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}
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build_package(sb_scope, op);
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build_append_array(table_data, sb_scope);
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build_free_array(sb_scope);
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aml_append(ssdt, sb_scope);
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}
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/* copy AML table into ACPI tables blob and patch header there */
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g_array_append_vals(table_data, ssdt->buf->data, ssdt->buf->len);
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build_header(linker, table_data,
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(void *)(table_data->data + ssdt_start),
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"SSDT", table_data->len - ssdt_start, 1);
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(void *)(table_data->data + table_data->len - ssdt->buf->len),
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"SSDT", ssdt->buf->len, 1);
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free_aml_allocator();
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}
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static void
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