memhp: move build_memory_devices() into memory_hotplug.c

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>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>

1 files changed, 124 insertions, 0 deletions

diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 57ac4fc2d0..67dd3f899e 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -553,3 +553,127 @@ void build_memory_hotplug_aml(Aml *ctx, uint32_t nr_mem,
     aml_append(pci_scope, mem_ctrl_dev);
     aml_append(ctx, pci_scope);
 }
+
+void build_memory_devices(Aml *sb_scope, int nr_mem,
+                          uint16_t io_base, uint16_t io_len)
+{
+    int i;
+    Aml *scope;
+    Aml *crs;
+    Aml *field;
+    Aml *dev;
+    Aml *method;
+    Aml *ifctx;
+
+    /* build memory devices */
+    assert(nr_mem <= ACPI_MAX_RAM_SLOTS);
+    scope = aml_scope("\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE);
+    aml_append(scope,
+        aml_name_decl(MEMORY_SLOTS_NUMBER, aml_int(nr_mem))
+    );
+
+    crs = aml_resource_template();
+    aml_append(crs,
+        aml_io(AML_DECODE16, io_base, io_base, 0, io_len)
+    );
+    aml_append(scope, aml_name_decl("_CRS", crs));
+
+    aml_append(scope, aml_operation_region(
+        MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO,
+        aml_int(io_base), io_len)
+    );
+
+    field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC,
+                      AML_NOLOCK, AML_PRESERVE);
+    aml_append(field, /* read only */
+        aml_named_field(MEMORY_SLOT_ADDR_LOW, 32));
+    aml_append(field, /* read only */
+        aml_named_field(MEMORY_SLOT_ADDR_HIGH, 32));
+    aml_append(field, /* read only */
+        aml_named_field(MEMORY_SLOT_SIZE_LOW, 32));
+    aml_append(field, /* read only */
+        aml_named_field(MEMORY_SLOT_SIZE_HIGH, 32));
+    aml_append(field, /* read only */
+        aml_named_field(MEMORY_SLOT_PROXIMITY, 32));
+    aml_append(scope, field);
+
+    field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_BYTE_ACC,
+                      AML_NOLOCK, 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(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));
+    aml_append(field,
+        /* (read) 1 if has a remove event. (write) 1 to clear event */
+        aml_named_field(MEMORY_SLOT_REMOVE_EVENT, 1));
+    aml_append(field,
+        /* initiates device eject, write only */
+        aml_named_field(MEMORY_SLOT_EJECT, 1));
+    aml_append(scope, field);
+
+    field = aml_field(MEMORY_HOTPLUG_IO_REGION, AML_DWORD_ACC,
+                      AML_NOLOCK, AML_PRESERVE);
+    aml_append(field, /* DIMM selector, write only */
+        aml_named_field(MEMORY_SLOT_SLECTOR, 32));
+    aml_append(field, /* _OST event code, write only */
+        aml_named_field(MEMORY_SLOT_OST_EVENT, 32));
+    aml_append(field, /* _OST status code, write only */
+        aml_named_field(MEMORY_SLOT_OST_STATUS, 32));
+    aml_append(scope, field);
+    aml_append(sb_scope, scope);
+
+    for (i = 0; i < nr_mem; i++) {
+        #define BASEPATH "\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE "."
+        const char *s;
+
+        dev = aml_device("MP%02X", i);
+        aml_append(dev, aml_name_decl("_UID", aml_string("0x%02X", i)));
+        aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C80")));
+
+        method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
+        s = BASEPATH MEMORY_SLOT_CRS_METHOD;
+        aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
+        aml_append(dev, method);
+
+        method = aml_method("_STA", 0, AML_NOTSERIALIZED);
+        s = BASEPATH MEMORY_SLOT_STATUS_METHOD;
+        aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
+        aml_append(dev, method);
+
+        method = aml_method("_PXM", 0, AML_NOTSERIALIZED);
+        s = BASEPATH MEMORY_SLOT_PROXIMITY_METHOD;
+        aml_append(method, aml_return(aml_call1(s, aml_name("_UID"))));
+        aml_append(dev, method);
+
+        method = aml_method("_OST", 3, AML_NOTSERIALIZED);
+        s = BASEPATH MEMORY_SLOT_OST_METHOD;
+
+        aml_append(method, aml_return(aml_call4(
+            s, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2)
+        )));
+        aml_append(dev, method);
+
+        method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
+        s = BASEPATH MEMORY_SLOT_EJECT_METHOD;
+        aml_append(method, aml_return(aml_call2(
+                   s, aml_name("_UID"), aml_arg(0))));
+        aml_append(dev, method);
+
+        aml_append(sb_scope, dev);
+    }
+
+    /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
+     *     If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... }
+     */
+    method = aml_method(MEMORY_SLOT_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
+    for (i = 0; i < nr_mem; i++) {
+        ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));
+        aml_append(ifctx,
+            aml_notify(aml_name("MP%.02X", i), aml_arg(1))
+        );
+        aml_append(method, ifctx);
+    }
+    aml_append(sb_scope, method);
+}