ad9671b870
'table' argument in bios_linker_add_foo() commands is a data blob of one of files also passed to the same API. So instead of passing blob in every API call, add and keep file name association with related blob at bios_linker_loader_alloc() time. And find blob by name looking up allocated file entries inside of bios_linker_add_foo() commands. It will: - make API less confusing, - enforce calling bios_linker_loader_alloc() before calling any bios_linker_add_foo() - make sure that blob is the correct one, i.e. associated with the right file name 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>
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/*
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* Non-Volatile Dual In-line Memory Module Virtualization Implementation
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*
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* Copyright(C) 2015 Intel Corporation.
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*
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* Author:
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* Xiao Guangrong <guangrong.xiao@linux.intel.com>
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*
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* NVDIMM specifications and some documents can be found at:
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* NVDIMM ACPI device and NFIT are introduced in ACPI 6:
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* http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf
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* NVDIMM Namespace specification:
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* http://pmem.io/documents/NVDIMM_Namespace_Spec.pdf
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* DSM Interface Example:
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* http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
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* Driver Writer's Guide:
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* http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_NVDIMM_H
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#define QEMU_NVDIMM_H
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#include "hw/mem/pc-dimm.h"
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#include "hw/acpi/bios-linker-loader.h"
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#define NVDIMM_DEBUG 0
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#define nvdimm_debug(fmt, ...) \
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do { \
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if (NVDIMM_DEBUG) { \
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fprintf(stderr, "nvdimm: " fmt, ## __VA_ARGS__); \
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} \
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} while (0)
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#define TYPE_NVDIMM "nvdimm"
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#define NVDIMM_DSM_MEM_FILE "etc/acpi/nvdimm-mem"
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/*
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* 32 bits IO port starting from 0x0a18 in guest is reserved for
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* NVDIMM ACPI emulation.
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*/
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#define NVDIMM_ACPI_IO_BASE 0x0a18
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#define NVDIMM_ACPI_IO_LEN 4
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struct AcpiNVDIMMState {
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/* detect if NVDIMM support is enabled. */
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bool is_enabled;
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/* the data of the fw_cfg file NVDIMM_DSM_MEM_FILE. */
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GArray *dsm_mem;
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/* the IO region used by OSPM to transfer control to QEMU. */
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MemoryRegion io_mr;
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};
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typedef struct AcpiNVDIMMState AcpiNVDIMMState;
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void nvdimm_init_acpi_state(AcpiNVDIMMState *state, MemoryRegion *io,
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FWCfgState *fw_cfg, Object *owner);
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void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data,
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BIOSLinker *linker, GArray *dsm_dma_arrea);
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#endif
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