2 * Non-Volatile Dual In-line Memory Module Virtualization Implementation
4 * Copyright(C) 2015 Intel Corporation.
7 * Xiao Guangrong <guangrong.xiao@linux.intel.com>
9 * NVDIMM specifications and some documents can be found at:
10 * NVDIMM ACPI device and NFIT are introduced in ACPI 6:
11 * http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf
12 * NVDIMM Namespace specification:
13 * http://pmem.io/documents/NVDIMM_Namespace_Spec.pdf
14 * DSM Interface Example:
15 * http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
16 * Driver Writer's Guide:
17 * http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf
19 * This work is licensed under the terms of the GNU GPL, version 2 or later.
20 * See the COPYING file in the top-level directory.
26 #include "hw/mem/pc-dimm.h"
28 #define TYPE_NVDIMM "nvdimm"
30 #define NVDIMM_DSM_MEM_FILE "etc/acpi/nvdimm-mem"
33 * 32 bits IO port starting from 0x0a18 in guest is reserved for
34 * NVDIMM ACPI emulation.
36 #define NVDIMM_ACPI_IO_BASE 0x0a18
37 #define NVDIMM_ACPI_IO_LEN 4
39 struct AcpiNVDIMMState
{
40 /* detect if NVDIMM support is enabled. */
43 /* the data of the fw_cfg file NVDIMM_DSM_MEM_FILE. */
45 /* the IO region used by OSPM to transfer control to QEMU. */
48 typedef struct AcpiNVDIMMState AcpiNVDIMMState
;
50 void nvdimm_init_acpi_state(AcpiNVDIMMState
*state
, MemoryRegion
*io
,
51 FWCfgState
*fw_cfg
, Object
*owner
);
52 void nvdimm_build_acpi(GArray
*table_offsets
, GArray
*table_data
,