[Qemu-devel] [PATCH v2 03/51] pc: acpi: memhp: move MHPD._STA method into SSDT

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
v3:
 - drop ASL comment
 - s/ctrl_dev/mem_ctrl_dev/
 - move locals 'zero', 'slots_nr' inside if block
v2:
 - add parentheses around ifctx block
   Suggested-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
---
 hw/acpi/memory_hotplug_acpi_table.c | 14 ++++++++++++++
 hw/i386/acpi-dsdt-mem-hotplug.dsl   |  8 --------
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/hw/acpi/memory_hotplug_acpi_table.c b/hw/acpi/memory_hotplug_acpi_table.c
index 35fefba..a21ef6f 100644
--- a/hw/acpi/memory_hotplug_acpi_table.c
+++ b/hw/acpi/memory_hotplug_acpi_table.c
@@ -17,6 +17,8 @@
 void build_memory_hotplug_aml(Aml *ctx, uint32_t nr_mem,
                               uint16_t io_base, uint16_t io_len)
 {
+    Aml *ifctx;
+    Aml *method;
     Aml *pci_scope;
     Aml *mem_ctrl_dev;
 
@@ -24,6 +26,18 @@ void build_memory_hotplug_aml(Aml *ctx, uint32_t nr_mem,
     pci_scope = aml_scope("_SB.PCI0");
     mem_ctrl_dev = aml_scope(stringify(MEMORY_HOTPLUG_DEVICE));
     {
+        Aml *zero = aml_int(0);
+        Aml *slots_nr = aml_name(stringify(MEMORY_SLOTS_NUMBER));
+
+        method = aml_method("_STA", 0, AML_NOTSERIALIZED);
+        ifctx = aml_if(aml_equal(slots_nr, zero));
+        {
+            aml_append(ifctx, aml_return(zero));
+        }
+        aml_append(method, ifctx);
+        /* present, functioning, decoding, not shown in UI */
+        aml_append(method, aml_return(aml_int(0xB)));
+        aml_append(mem_ctrl_dev, method);
     }
     aml_append(pci_scope, mem_ctrl_dev);
     aml_append(ctx, pci_scope);
diff --git a/hw/i386/acpi-dsdt-mem-hotplug.dsl b/hw/i386/acpi-dsdt-mem-hotplug.dsl
index c2bb6a1..b4eacc9 100644
--- a/hw/i386/acpi-dsdt-mem-hotplug.dsl
+++ b/hw/i386/acpi-dsdt-mem-hotplug.dsl
@@ -35,14 +35,6 @@
             External(MEMORY_SLOT_OST_EVENT, FieldUnitObj) // _OST event code, write only
             External(MEMORY_SLOT_OST_STATUS, FieldUnitObj) // _OST status code, write only
 
-            Method(_STA, 0) {
-                If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
-                    Return(0x0)
-                }
-                /* present, functioning, decoding, not shown in UI */
-                Return(0xB)
-            }
-
             Mutex (MEMORY_SLOT_LOCK, 0)
 
             Method(MEMORY_SLOT_SCAN_METHOD, 0) {
-- 
1.8.3.1