pc: acpi: cpuhp: move CPMA() method into SSDT

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>
qemu · Jan 9, 2016 · 1d608d1 · 1d608d1
1 parent fbd7a6b
commit 1d608d1
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Showing 4 changed files with 28 additions and 15 deletions.
diff --git a/hw/acpi/cpu_hotplug_acpi_table.c b/hw/acpi/cpu_hotplug_acpi_table.c
@@ -19,6 +19,29 @@ void build_cpu_hotplug_aml(Aml *ctx)
 {
     Aml *method;
     Aml *sb_scope = aml_scope("_SB");
+    uint8_t madt_tmpl[8] = {0x00, 0x08, 0x00, 0x00, 0x00, 0, 0, 0};
+    Aml *cpu_id = aml_arg(0);
+    Aml *cpu_on = aml_local(0);
+    Aml *madt = aml_local(1);
+    Aml *cpus_map = aml_name(CPU_ON_BITMAP);
+
+    /*
+     * _MAT method - creates an madt apic buffer
+     * cpu_id = Arg0 = Processor ID = Local APIC ID
+     * cpu_on = Local0 = CPON flag for this cpu
+     * madt = Local1 = Buffer (in madt apic form) to return
+     */
+    method = aml_method(CPU_MAT_METHOD, 1, AML_NOTSERIALIZED);
+    aml_append(method,
+        aml_store(aml_derefof(aml_index(cpus_map, cpu_id)), cpu_on));
+    aml_append(method,
+        aml_store(aml_buffer(sizeof(madt_tmpl), madt_tmpl), madt));
+    /* Update the processor id, lapic id, and enable/disable status */
+    aml_append(method, aml_store(cpu_id, aml_index(madt, aml_int(2))));
+    aml_append(method, aml_store(cpu_id, aml_index(madt, aml_int(3))));
+    aml_append(method, aml_store(cpu_on, aml_index(madt, aml_int(4))));
+    aml_append(method, aml_return(madt));
+    aml_append(sb_scope, method);
 
     method = aml_method(CPU_EJECT_METHOD, 2, AML_NOTSERIALIZED);
     aml_append(method, aml_sleep(200));

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
@@ -1318,7 +1318,8 @@ build_ssdt(GArray *table_data, GArray *linker,
             dev = aml_processor(i, 0, 0, "CP%.02X", i);
 
             method = aml_method("_MAT", 0, AML_NOTSERIALIZED);
-            aml_append(method, aml_return(aml_call1("CPMA", aml_int(i))));
+            aml_append(method,
+                aml_return(aml_call1(CPU_MAT_METHOD, aml_int(i))));
             aml_append(dev, method);
 
             method = aml_method("_STA", 0, AML_NOTSERIALIZED);
@@ -1362,7 +1363,7 @@ build_ssdt(GArray *table_data, GArray *linker,
             uint8_t b = test_bit(i, cpu->found_cpus) ? 0x01 : 0x00;
             aml_append(pkg, aml_int(b));
         }
-        aml_append(sb_scope, aml_name_decl("CPON", pkg));
+        aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg));
 
         build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base,
                              pm->mem_hp_io_len);

diff --git a/hw/i386/acpi-dsdt-cpu-hotplug.dsl b/hw/i386/acpi-dsdt-cpu-hotplug.dsl
@@ -24,19 +24,6 @@ Scope(\_SB) {
     External(PRS, FieldUnitObj)
 
     /* Methods called by run-time generated SSDT Processor objects */
-    Method(CPMA, 1, NotSerialized) {
-        // _MAT method - create an madt apic buffer
-        // Arg0 = Processor ID = Local APIC ID
-        // Local0 = CPON flag for this cpu
-        Store(DerefOf(Index(CPON, Arg0)), Local0)
-        // Local1 = Buffer (in madt apic form) to return
-        Store(Buffer(8) {0x00, 0x08, 0x00, 0x00, 0x00, 0, 0, 0}, Local1)
-        // Update the processor id, lapic id, and enable/disable status
-        Store(Arg0, Index(Local1, 2))
-        Store(Arg0, Index(Local1, 3))
-        Store(Local0, Index(Local1, 4))
-        Return (Local1)
-    }
     Method(CPST, 1, NotSerialized) {
         // _STA method - return ON status of cpu
         // Arg0 = Processor ID = Local APIC ID

diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h
@@ -28,6 +28,8 @@ void acpi_cpu_hotplug_init(MemoryRegion *parent, Object *owner,
                            AcpiCpuHotplug *gpe_cpu, uint16_t base);
 
 #define CPU_EJECT_METHOD "CPEJ"
+#define CPU_MAT_METHOD "CPMA"
+#define CPU_ON_BITMAP "CPON"
 
 void build_cpu_hotplug_aml(Aml *ctx);
 #endif