Function 5 is used to get Namespace Label Data
Signed-off-by: Xiao Guangrong <guangrong.x...@linux.intel.com>
---
hw/mem/nvdimm/acpi.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/hw/mem/nvdimm/acpi.c b/hw/mem/nvdimm/acpi.c
index 0a5f2c2..517d710 100644
--- a/hw/mem/nvdimm/acpi.c
+++ b/hw/mem/nvdimm/acpi.c
@@ -352,6 +352,7 @@ struct dsm_buffer {
uint32_t arg1;
uint32_t arg2;
union {
+ struct cmd_in_get_config_data cmd_config_get;
struct cmd_in_set_config_data cmd_config_set;
char arg3[PAGE_SIZE - 3 * sizeof(uint32_t) - 16 * sizeof(uint8_t)];
};
@@ -454,6 +455,34 @@ dsm_cmd_config_size(PCNVDIMMDevice *nvdimm, struct
dsm_buffer *in,
return NFIT_STATUS_SUCCESS;
}
+static uint32_t
+dsm_cmd_config_get(PCNVDIMMDevice *nvdimm, struct dsm_buffer *in,
+ struct dsm_out *out)
+{
+ struct cmd_in_get_config_data *cmd_in = &in->cmd_config_get;
+ uint32_t status;
+
+ le32_to_cpus(&cmd_in->length);
+ le32_to_cpus(&cmd_in->offset);
+
+ nvdebug("Read Config: offset %#x length %#x.\n", cmd_in->offset,
+ cmd_in->length);
+
+ if (nvdimm->config_data_size < cmd_in->length + cmd_in->offset) {
+ nvdebug("position %#x is beyond config data (len = %#lx).\n",
+ cmd_in->length + cmd_in->offset, nvdimm->config_data_size);
+ status = NFIT_STATUS_INVALID_PARAS;
+ goto exit;
+ }
+
+ status = NFIT_STATUS_SUCCESS;
+ memcpy(out->cmd_config_get.out_buf, nvdimm->config_data_addr +
+ cmd_in->offset, cmd_in->length);
+
+exit:
+ return status;
+}
+
static void dsm_write_nvdimm(struct dsm_buffer *in, struct dsm_out *out)
{
GSList *list = get_nvdimm_built_list();
@@ -478,6 +507,9 @@ static void dsm_write_nvdimm(struct dsm_buffer *in, struct
dsm_out *out)
case NFIT_CMD_GET_CONFIG_SIZE:
status = dsm_cmd_config_size(nvdimm, in, out);
break;
+ case NFIT_CMD_GET_CONFIG_DATA:
+ status = dsm_cmd_config_get(nvdimm, in, out);
+ break;
default:
status = NFIT_STATUS_NOT_SUPPORTED;
};
--
2.4.3
