From: ‪Hendrik Wüthrich <whendrik@google.com>

Change config to show RDT, add minimal code to the rdt.c module to make
sure things still compile.

Signed-off-by: Hendrik Wüthrich <whendrik@google.com>
---
 hw/i386/Kconfig       |  4 ++++
 hw/i386/meson.build   |  1 +
 hw/i386/rdt.c         | 49 +++++++++++++++++++++++++++++++++++++++++++
 include/hw/i386/rdt.h | 12 +++++++++++
 4 files changed, 66 insertions(+)
 create mode 100644 hw/i386/rdt.c
 create mode 100644 include/hw/i386/rdt.h

diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig
index f4a33b6c08..4dd05ed6f2 100644
--- a/hw/i386/Kconfig
+++ b/hw/i386/Kconfig
@@ -10,6 +10,9 @@ config SGX
     bool
     depends on KVM
 
+config RDT
+    bool
+
 config PC
     bool
     imply APPLESMC
@@ -26,6 +29,7 @@ config PC
     imply QXL
     imply SEV
     imply SGX
+    imply RDT
     imply TEST_DEVICES
     imply TPM_CRB
     imply TPM_TIS_ISA
diff --git a/hw/i386/meson.build b/hw/i386/meson.build
index 03aad10df7..fdbf5962b5 100644
--- a/hw/i386/meson.build
+++ b/hw/i386/meson.build
@@ -21,6 +21,7 @@ i386_ss.add(when: 'CONFIG_VMPORT', if_true: files('vmport.c'))
 i386_ss.add(when: 'CONFIG_VTD', if_true: files('intel_iommu.c'))
 i386_ss.add(when: 'CONFIG_SGX', if_true: files('sgx-epc.c','sgx.c'),
                                 if_false: files('sgx-stub.c'))
+i386_ss.add(when: 'CONFIG_RDT', if_true: files('rdt.c'))
 
 i386_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-common.c'))
 i386_ss.add(when: 'CONFIG_PC', if_true: files(
diff --git a/hw/i386/rdt.c b/hw/i386/rdt.c
new file mode 100644
index 0000000000..0a5e95606b
--- /dev/null
+++ b/hw/i386/rdt.c
@@ -0,0 +1,49 @@
+#include "qemu/osdep.h"
+#include "hw/i386/rdt.h"
+#include <stdint.h>
+#include "hw/qdev-properties.h"
+#include "qemu/typedefs.h"
+#include "qom/object.h"
+#include "target/i386/cpu.h"
+#include "hw/isa/isa.h"
+
+#define TYPE_RDT "rdt"
+
+OBJECT_DECLARE_TYPE(RDTState, RDTStateClass, RDT);
+
+struct RDTState {
+    ISADevice parent;
+};
+
+struct RDTStateClass { };
+
+OBJECT_DEFINE_TYPE(RDTState, rdt, RDT, ISA_DEVICE);
+
+static Property rdt_properties[] = {
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void rdt_init(Object *obj)
+{
+}
+
+static void rdt_realize(DeviceState *dev, Error **errp)
+{
+}
+
+static void rdt_finalize(Object *obj)
+{
+}
+
+static void rdt_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->hotpluggable = false;
+    dc->desc = "RDT";
+    dc->user_creatable = true;
+    dc->realize = rdt_realize;
+
+    device_class_set_props(dc, rdt_properties);
+}
+
diff --git a/include/hw/i386/rdt.h b/include/hw/i386/rdt.h
new file mode 100644
index 0000000000..45e34d3103
--- /dev/null
+++ b/include/hw/i386/rdt.h
@@ -0,0 +1,12 @@
+#ifndef HW_RDT_H
+#define HW_RDT_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct RDTState RDTState;
+typedef struct RDTStateInstance RDTStateInstance;
+typedef struct RDTMonitor RDTMonitor;
+typedef struct RDTAllocation RDTAllocation;
+
+#endif
-- 
2.45.2.1089.g2a221341d9-goog