[Qemu-devel] [RFC PATCH 9/9] hw/acpi: implement madt_main to manipulate main madt table

[Wei Yang <richardw.yang@linux.intel.com>]

Different arch would handle the main madt table differently. Add a
helper function to achieve this goal.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
---
 hw/acpi/piix4.c                      |  1 +
 hw/i386/acpi-build.c                 | 13 +++++++++++--
 hw/isa/lpc_ich9.c                    |  1 +
 include/hw/acpi/acpi_dev_interface.h |  1 +
 include/hw/i386/pc.h                 |  1 +
 5 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index f4336b9238..d7d097daee 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -723,6 +723,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data)
     adevc->ospm_status = piix4_ospm_status;
     adevc->send_event = piix4_send_gpe;
     adevc->madt_sub = i386_madt_sub;
+    adevc->madt_main = i386_madt_main;
 }
 
 static const TypeInfo piix4_pm_info = {
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 74a34e297e..e73e9fddee 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -454,6 +454,14 @@ madt_operations i386_madt_sub = {
     [ACPI_APIC_LOCAL_NMI] = pc_madt_nmi_entry,
 };
 
+void i386_madt_main(GArray *entry, void *opaque)
+{
+    AcpiMultipleApicTable *madt = opaque;
+
+    madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS);
+    madt->flags = cpu_to_le32(1);
+}
+
 static void
 build_madt(GArray *table_data, BIOSLinker *linker, PCMachineState *pcms,
            struct madt_input *input)
@@ -466,8 +474,9 @@ build_madt(GArray *table_data, BIOSLinker *linker, PCMachineState *pcms,
     void *opaque;
 
     madt = acpi_data_push(table_data, sizeof *madt);
-    madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS);
-    madt->flags = cpu_to_le32(1);
+    if (adevc->madt_main) {
+        adevc->madt_main(table_data, madt);
+    }
 
     for (i = 0; ; i++) {
         sub_id = input[i].sub_id;
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index efb0fd8e94..21afd1a12d 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -812,6 +812,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data)
     adevc->ospm_status = ich9_pm_ospm_status;
     adevc->send_event = ich9_send_gpe;
     adevc->madt_sub = i386_madt_sub;
+    adevc->madt_main = i386_madt_main;
 }
 
 static const TypeInfo ich9_lpc_info = {
diff --git a/include/hw/acpi/acpi_dev_interface.h b/include/hw/acpi/acpi_dev_interface.h
index 3a3a12d543..d3b216544d 100644
--- a/include/hw/acpi/acpi_dev_interface.h
+++ b/include/hw/acpi/acpi_dev_interface.h
@@ -52,6 +52,7 @@ typedef struct AcpiDeviceIfClass {
     /* <public> */
     void (*ospm_status)(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
     void (*send_event)(AcpiDeviceIf *adev, AcpiEventStatusBits ev);
+    madt_operation madt_main;
     madt_operation *madt_sub;
 } AcpiDeviceIfClass;
 #endif
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index db4ec693d3..6b7dd060ac 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -282,6 +282,7 @@ void pc_system_firmware_init(PCMachineState *pcms, MemoryRegion *rom_memory);
 void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
                        const CPUArchIdList *apic_ids, GArray *entry);
 extern madt_operations i386_madt_sub;
+void i386_madt_main(GArray *entry, void *opaque);
 
 /* e820 types */
 #define E820_RAM        1
-- 
2.19.1