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pc: acpi-build: use aml_scope() for \_SB scope

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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>
This commit is contained in:
Igor Mammedov 2015-02-18 19:14:16 +00:00 committed by Michael S. Tsirkin
parent 2ef7c27b78
commit 011bb7490b
1 changed files with 19 additions and 20 deletions
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39
hw/i386/acpi-build.c
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@ -923,17 +923,18 @@ build_ssdt(GArray *table_data, GArray *linker,
MachineState *machine = MACHINE(qdev_get_machine()); MachineState *machine = MACHINE(qdev_get_machine());
uint32_t nr_mem = machine->ram_slots; uint32_t nr_mem = machine->ram_slots;
unsigned acpi_cpus = guest_info->apic_id_limit; unsigned acpi_cpus = guest_info->apic_id_limit;
int ssdt_start = table_data->len;
uint8_t *ssdt_ptr; uint8_t *ssdt_ptr;
Aml *ssdt, *sb_scope;
int i; int i;
ssdt = init_aml_allocator();
/* The current AML generator can cover the APIC ID range [0..255], /* The current AML generator can cover the APIC ID range [0..255],
* inclusive, for VCPU hotplug. */ * inclusive, for VCPU hotplug. */
QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256); QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT); g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT);
/* Copy header and patch values in the S3_ / S4_ / S5_ packages */ /* Copy header and patch values in the S3_ / S4_ / S5_ packages */
ssdt_ptr = acpi_data_push(table_data, sizeof(ssdp_misc_aml)); ssdt_ptr = acpi_data_push(ssdt->buf, sizeof(ssdp_misc_aml));
memcpy(ssdt_ptr, ssdp_misc_aml, sizeof(ssdp_misc_aml)); memcpy(ssdt_ptr, ssdp_misc_aml, sizeof(ssdp_misc_aml));
if (pm->s3_disabled) { if (pm->s3_disabled) {
ssdt_ptr[acpi_s3_name[0]] = 'X'; ssdt_ptr[acpi_s3_name[0]] = 'X';
@ -953,15 +954,11 @@ build_ssdt(GArray *table_data, GArray *linker,
ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml), ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml),
ssdt_mctrl_nr_slots[0], 32, nr_mem); ssdt_mctrl_nr_slots[0], 32, nr_mem);
sb_scope = aml_scope("_SB");
{ {
GArray *sb_scope = build_alloc_array();
uint8_t op = 0x10; /* ScopeOp */
build_append_namestring(sb_scope, "_SB");
/* build Processor object for each processor */ /* build Processor object for each processor */
for (i = 0; i < acpi_cpus; i++) { for (i = 0; i < acpi_cpus; i++) {
uint8_t *proc = acpi_data_push(sb_scope, ACPI_PROC_SIZEOF); uint8_t *proc = acpi_data_push(sb_scope->buf, ACPI_PROC_SIZEOF);
memcpy(proc, ACPI_PROC_AML, ACPI_PROC_SIZEOF); memcpy(proc, ACPI_PROC_AML, ACPI_PROC_SIZEOF);
proc[ACPI_PROC_OFFSET_CPUHEX] = acpi_get_hex(i >> 4); proc[ACPI_PROC_OFFSET_CPUHEX] = acpi_get_hex(i >> 4);
proc[ACPI_PROC_OFFSET_CPUHEX+1] = acpi_get_hex(i); proc[ACPI_PROC_OFFSET_CPUHEX+1] = acpi_get_hex(i);
@ -973,11 +970,12 @@ build_ssdt(GArray *table_data, GArray *linker,
* Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...} * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
*/ */
/* Arg0 = Processor ID = APIC ID */ /* Arg0 = Processor ID = APIC ID */
build_append_notify_method(sb_scope, "NTFY", "CP%0.02X", acpi_cpus); build_append_notify_method(sb_scope->buf, "NTFY",
"CP%0.02X", acpi_cpus);
/* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */ /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */
build_append_byte(sb_scope, 0x08); /* NameOp */ build_append_byte(sb_scope->buf, 0x08); /* NameOp */
build_append_namestring(sb_scope, "CPON"); build_append_namestring(sb_scope->buf, "CPON");
{ {
GArray *package = build_alloc_array(); GArray *package = build_alloc_array();
@ -1002,7 +1000,7 @@ build_ssdt(GArray *table_data, GArray *linker,
} }
build_package(package, op); build_package(package, op);
build_append_array(sb_scope, package); build_append_array(sb_scope->buf, package);
build_free_array(package); build_free_array(package);
} }
@ -1011,7 +1009,7 @@ build_ssdt(GArray *table_data, GArray *linker,
/* build memory devices */ /* build memory devices */
for (i = 0; i < nr_mem; i++) { for (i = 0; i < nr_mem; i++) {
char id[3]; char id[3];
uint8_t *mem = acpi_data_push(sb_scope, ACPI_MEM_SIZEOF); uint8_t *mem = acpi_data_push(sb_scope->buf, ACPI_MEM_SIZEOF);
snprintf(id, sizeof(id), "%02X", i); snprintf(id, sizeof(id), "%02X", i);
memcpy(mem, ACPI_MEM_AML, ACPI_MEM_SIZEOF); memcpy(mem, ACPI_MEM_AML, ACPI_MEM_SIZEOF);
@ -1022,7 +1020,7 @@ build_ssdt(GArray *table_data, GArray *linker,
/* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) { /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
* If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ...
*/ */
build_append_notify_method(sb_scope, build_append_notify_method(sb_scope->buf,
stringify(MEMORY_SLOT_NOTIFY_METHOD), stringify(MEMORY_SLOT_NOTIFY_METHOD),
"MP%0.02X", nr_mem); "MP%0.02X", nr_mem);
} }
@ -1046,17 +1044,18 @@ build_ssdt(GArray *table_data, GArray *linker,
build_pci_bus_end, &hotplug_state); build_pci_bus_end, &hotplug_state);
} }
build_append_array(sb_scope, hotplug_state.device_table); build_append_array(sb_scope->buf, hotplug_state.device_table);
build_pci_bus_state_cleanup(&hotplug_state); build_pci_bus_state_cleanup(&hotplug_state);
} }
build_package(sb_scope, op); aml_append(ssdt, sb_scope);
build_append_array(table_data, sb_scope);
build_free_array(sb_scope);
} }
/* copy AML table into ACPI tables blob and patch header there */
g_array_append_vals(table_data, ssdt->buf->data, ssdt->buf->len);
build_header(linker, table_data, build_header(linker, table_data,
(void *)(table_data->data + ssdt_start), (void *)(table_data->data + table_data->len - ssdt->buf->len),
"SSDT", table_data->len - ssdt_start, 1); "SSDT", ssdt->buf->len, 1);
free_aml_allocator();
} }
static void static void