diff options
Diffstat (limited to 'hw/acpi/nvdimm.c')
| -rw-r--r-- | hw/acpi/nvdimm.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 49ee68e614..8568b20341 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -29,6 +29,7 @@ #include "qemu/osdep.h" #include "hw/acpi/acpi.h" #include "hw/acpi/aml-build.h" +#include "hw/nvram/fw_cfg.h" #include "hw/mem/nvdimm.h" static int nvdimm_plugged_device_list(Object *obj, void *opaque) @@ -370,6 +371,40 @@ static void nvdimm_build_nfit(GSList *device_list, GArray *table_offsets, g_array_free(structures, true); } +static uint64_t +nvdimm_dsm_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void +nvdimm_dsm_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) +{ +} + +static const MemoryRegionOps nvdimm_dsm_ops = { + .read = nvdimm_dsm_read, + .write = nvdimm_dsm_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + +void nvdimm_init_acpi_state(AcpiNVDIMMState *state, MemoryRegion *io, + FWCfgState *fw_cfg, Object *owner) +{ + memory_region_init_io(&state->io_mr, owner, &nvdimm_dsm_ops, state, + "nvdimm-acpi-io", NVDIMM_ACPI_IO_LEN); + memory_region_add_subregion(io, NVDIMM_ACPI_IO_BASE, &state->io_mr); + + state->dsm_mem = g_array_new(false, true /* clear */, 1); + acpi_data_push(state->dsm_mem, TARGET_PAGE_SIZE); + fw_cfg_add_file(fw_cfg, NVDIMM_DSM_MEM_FILE, state->dsm_mem->data, + state->dsm_mem->len); +} + #define NVDIMM_COMMON_DSM "NCAL" static void nvdimm_build_common_dsm(Aml *dev) |