[Qemu-devel] [PATCH 11/19] pc: acpi: memhp: move MHPD.MRST method into MHPT table

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/acpi/memory_hotplug_acpi_table.c | 25 +++++++++++++++++++++++--
 hw/i386/acpi-dsdt-mem-hotplug.dsl   | 15 ---------------
 include/hw/acpi/pc-hotplug.h        |  2 --
 3 files changed, 23 insertions(+), 19 deletions(-)

diff --git a/hw/acpi/memory_hotplug_acpi_table.c b/hw/acpi/memory_hotplug_acpi_table.c
index 3eb1780..7ca3c7d 100644
--- a/hw/acpi/memory_hotplug_acpi_table.c
+++ b/hw/acpi/memory_hotplug_acpi_table.c
@@ -7,6 +7,8 @@
 #define MEMORY_SLOT_INSERT_EVENT     "MINS"
 #define MEMORY_SLOT_REMOVE_EVENT     "MRMV"
 #define MEMORY_SLOT_NOTIFY_METHOD    "MTFY"
+#define MEMORY_SLOT_STATUS_METHOD    "MRST"
+#define MEMORY_SLOT_ENABLED          "MES"
 
 #define BASEPATH "\\_SB.PCI0." stringify(MEMORY_HOTPLUG_DEVICE) "."
 
@@ -25,6 +27,8 @@ void build_mhpt(GArray *table_data, GArray *linker, uint32_t nr_mem,
     ctrl_dev = aml_scope("\\_SB.PCI0." stringify(MEMORY_HOTPLUG_DEVICE));
     {
         Aml *crs, *field;
+        Aml *a_slot_arg = aml_arg(0);
+        Aml *a_ret_val = aml_local(0);
         Aml *a_ctrl_lock = aml_name(stringify(MEMORY_SLOT_LOCK));
         Aml *a_slot_selector = aml_name(stringify(MEMORY_SLOT_SLECTOR));
 
@@ -55,7 +59,7 @@ void build_mhpt(GArray *table_data, GArray *linker, uint32_t nr_mem,
                           AML_WRITE_AS_ZEROS);
         aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */));
         aml_append(field, /* 1 if enabled, read only */
-            aml_named_field(stringify(MEMORY_SLOT_ENABLED), 1));
+            aml_named_field(MEMORY_SLOT_ENABLED, 1));
         aml_append(field,
             /*(read) 1 if has a insert event. (write) 1 to clear event */
             aml_named_field(MEMORY_SLOT_INSERT_EVENT, 1));
@@ -115,6 +119,23 @@ void build_mhpt(GArray *table_data, GArray *linker, uint32_t nr_mem,
             aml_append(method, aml_return(aml_int(1)));
         }
         aml_append(ctrl_dev, method);
+
+        method = aml_method(MEMORY_SLOT_STATUS_METHOD, 1);
+        {
+            Aml *a_slot_enabled = aml_name(MEMORY_SLOT_ENABLED);
+
+            aml_append(method, aml_acquire(a_ctrl_lock, 0xFFFF));
+            aml_append(method, aml_store(aml_int(0), a_ret_val));
+            aml_append(method, aml_store(a_slot_arg, a_slot_selector));
+
+            ifctx = aml_if(aml_equal(a_slot_enabled, aml_int(1)));
+            aml_append(ifctx, aml_store(aml_int(0xF), a_ret_val));
+            aml_append(method, ifctx);
+
+            aml_append(method, aml_release(a_ctrl_lock));
+            aml_append(method, aml_return(a_ret_val));
+        }
+        aml_append(ctrl_dev, method);
     }
     aml_append(table, ctrl_dev);
 
@@ -132,7 +153,7 @@ void build_mhpt(GArray *table_data, GArray *linker, uint32_t nr_mem,
         aml_append(dev, method);
 
         method = aml_method("_STA", 0);
-        s = BASEPATH stringify(MEMORY_SLOT_STATUS_METHOD);
+        s = BASEPATH MEMORY_SLOT_STATUS_METHOD;
         aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
         aml_append(dev, method);
 
diff --git a/hw/i386/acpi-dsdt-mem-hotplug.dsl b/hw/i386/acpi-dsdt-mem-hotplug.dsl
index 92baf87..13e93dc 100644
--- a/hw/i386/acpi-dsdt-mem-hotplug.dsl
+++ b/hw/i386/acpi-dsdt-mem-hotplug.dsl
@@ -26,27 +26,12 @@
             External(MEMORY_SLOT_SIZE_LOW, FieldUnitObj) // read only
             External(MEMORY_SLOT_SIZE_HIGH, FieldUnitObj) // read only
             External(MEMORY_SLOT_PROXIMITY, FieldUnitObj) // read only
-            External(MEMORY_SLOT_ENABLED, FieldUnitObj) // 1 if enabled, read only
             External(MEMORY_SLOT_EJECT, FieldUnitObj) // initiates device eject, write only
             External(MEMORY_SLOT_SLECTOR, FieldUnitObj) // DIMM selector, write only
             External(MEMORY_SLOT_OST_EVENT, FieldUnitObj) // _OST event code, write only
             External(MEMORY_SLOT_OST_STATUS, FieldUnitObj) // _OST status code, write only
             External(MEMORY_SLOT_LOCK, MutexObj)
 
-            Method(MEMORY_SLOT_STATUS_METHOD, 1) {
-                Store(Zero, Local0)
-
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
-
-                If (LEqual(MEMORY_SLOT_ENABLED, One)) {
-                    Store(0xF, Local0)
-                }
-
-                Release(MEMORY_SLOT_LOCK)
-                Return(Local0)
-            }
-
             Method(MEMORY_SLOT_CRS_METHOD, 1, Serialized) {
                 Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
                 Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
diff --git a/include/hw/acpi/pc-hotplug.h b/include/hw/acpi/pc-hotplug.h
index 9b67a93..47efa99 100644
--- a/include/hw/acpi/pc-hotplug.h
+++ b/include/hw/acpi/pc-hotplug.h
@@ -39,13 +39,11 @@
 #define MEMORY_SLOT_SIZE_LOW         MRLL
 #define MEMORY_SLOT_SIZE_HIGH        MRLH
 #define MEMORY_SLOT_PROXIMITY        MPX
-#define MEMORY_SLOT_ENABLED          MES
 #define MEMORY_SLOT_EJECT            MEJ
 #define MEMORY_SLOT_SLECTOR          MSEL
 #define MEMORY_SLOT_OST_EVENT        MOEV
 #define MEMORY_SLOT_OST_STATUS       MOSC
 #define MEMORY_SLOT_LOCK             MLCK
-#define MEMORY_SLOT_STATUS_METHOD    MRST
 #define MEMORY_SLOT_CRS_METHOD       MCRS
 #define MEMORY_SLOT_OST_METHOD       MOST
 #define MEMORY_SLOT_PROXIMITY_METHOD MPXM
-- 
1.8.3.1