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authorIgor Mammedov <imammedo@redhat.com>2016-05-17 16:42:57 +0200
committerMichael S. Tsirkin <mst@redhat.com>2016-06-07 15:36:54 +0300
commit7c2991fa115eae8d54e544d6231ee81844d6c8e3 (patch)
treeeb9f5e334ce4f4ab428650804aacdc56351a4fd5 /hw/i386
parent86958d2dddd0c21a4a6602e418bc7818e5a4a964 (diff)
pc: acpi: consolidate CPU hotplug AML
move the former SSDT part of CPU hoplug close to DSDT part. AML is only moved but there isn't any functional change. 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>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/acpi-build.c112
1 files changed, 1 insertions, 111 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index ff98ad81de..822230f7a5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -943,114 +943,6 @@ static Aml *build_crs(PCIHostState *host,
return crs;
}
-static void build_processor_devices(Aml *sb_scope, MachineState *machine,
- AcpiPmInfo *pm)
-{
- int i, apic_idx;
- Aml *dev;
- Aml *crs;
- Aml *pkg;
- Aml *field;
- Aml *ifctx;
- Aml *method;
- MachineClass *mc = MACHINE_GET_CLASS(machine);
- CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(machine);
- PCMachineState *pcms = PC_MACHINE(machine);
-
- /* The current AML generator can cover the APIC ID range [0..255],
- * inclusive, for VCPU hotplug. */
- QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256);
- g_assert(pcms->apic_id_limit <= ACPI_CPU_HOTPLUG_ID_LIMIT);
-
- /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */
- dev = aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE));
- aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A06")));
- aml_append(dev,
- aml_name_decl("_UID", aml_string("CPU Hotplug resources"))
- );
- /* device present, functioning, decoding, not shown in UI */
- aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
- crs = aml_resource_template();
- aml_append(crs,
- aml_io(AML_DECODE16, pm->cpu_hp_io_base, pm->cpu_hp_io_base, 1,
- pm->cpu_hp_io_len)
- );
- aml_append(dev, aml_name_decl("_CRS", crs));
- aml_append(sb_scope, dev);
- /* declare CPU hotplug MMIO region and PRS field to access it */
- aml_append(sb_scope, aml_operation_region(
- "PRST", AML_SYSTEM_IO, aml_int(pm->cpu_hp_io_base), pm->cpu_hp_io_len));
- field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
- aml_append(field, aml_named_field("PRS", 256));
- aml_append(sb_scope, field);
-
- /* build Processor object for each processor */
- for (i = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- assert(apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT);
-
- dev = aml_processor(apic_id, 0, 0, "CP%.02X", apic_id);
-
- method = aml_method("_MAT", 0, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call1(CPU_MAT_METHOD, aml_int(apic_id))));
- aml_append(dev, method);
-
- method = aml_method("_STA", 0, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(apic_id))));
- aml_append(dev, method);
-
- method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
- aml_append(method,
- aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(apic_id),
- aml_arg(0)))
- );
- aml_append(dev, method);
-
- aml_append(sb_scope, dev);
- }
-
- /* build this code:
- * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
- */
- /* Arg0 = Processor ID = APIC ID */
- method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
- for (i = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- ifctx = aml_if(aml_equal(aml_arg(0), aml_int(apic_id)));
- aml_append(ifctx,
- aml_notify(aml_name("CP%.02X", apic_id), aml_arg(1))
- );
- aml_append(method, ifctx);
- }
- aml_append(sb_scope, method);
-
- /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })"
- *
- * Note: The ability to create variable-sized packages was first
- * introduced in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages
- * ith up to 255 elements. Windows guests up to win2k8 fail when
- * VarPackageOp is used.
- */
- pkg = pcms->apic_id_limit <= 255 ? aml_package(pcms->apic_id_limit) :
- aml_varpackage(pcms->apic_id_limit);
-
- for (i = 0, apic_idx = 0; i < apic_ids->len; i++) {
- int apic_id = apic_ids->cpus[i].arch_id;
-
- for (; apic_idx < apic_id; apic_idx++) {
- aml_append(pkg, aml_int(0));
- }
- aml_append(pkg, aml_int(apic_ids->cpus[i].cpu ? 1 : 0));
- apic_idx = apic_id + 1;
- }
- aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg));
- g_free(apic_ids);
-}
-
static void build_memory_devices(Aml *sb_scope, int nr_mem,
uint16_t io_base, uint16_t io_len)
{
@@ -2043,7 +1935,7 @@ build_dsdt(GArray *table_data, GArray *linker,
build_q35_pci0_int(dsdt);
}
- build_cpu_hotplug_aml(dsdt);
+ build_cpu_hotplug_aml(dsdt, machine, pm->cpu_hp_io_base, pm->cpu_hp_io_len);
build_memory_hotplug_aml(dsdt, nr_mem, pm->mem_hp_io_base,
pm->mem_hp_io_len);
@@ -2305,8 +2197,6 @@ build_dsdt(GArray *table_data, GArray *linker,
sb_scope = aml_scope("\\_SB");
{
- build_processor_devices(sb_scope, machine, pm);
-
build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,
pm->mem_hp_io_len);