Function 6 is used to set Namespace Label Data Signed-off-by: Xiao Guangrong <guangrong.xiao@xxxxxxxxxxxxxxx> --- hw/acpi/nvdimm.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 1683a82..838a57e 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -529,6 +529,11 @@ struct cmd_out_get_label_data { } QEMU_PACKED; typedef struct cmd_out_get_label_data cmd_out_get_label_data; +struct cmd_out_set_label_data { + uint32_t status; +}; +typedef struct cmd_out_set_label_data cmd_out_set_label_data; + struct dsm_out { /* the size of buffer filled by QEMU. */ uint32_t len; @@ -537,6 +542,7 @@ struct dsm_out { cmd_out_implemented cmd_implemented; cmd_out_label_size cmd_label_size; cmd_out_get_label_data cmd_get_label_data; + cmd_out_set_label_data cmd_set_label_data; }; } QEMU_PACKED; typedef struct dsm_out dsm_out; @@ -666,6 +672,43 @@ exit: nvdimm_dsm_write_status(out, status); } +/* + * please refer to DSM specification 4.6 Set Namespace Label Data + * (Function Index 6). + */ +static void +nvdimm_dsm_cmd_set_label_data(NVDIMMDevice *nvdimm, dsm_in *in, GArray *out) +{ + cmd_in_set_label_data *cmd_in = &in->cmd_set_label_data; + uint32_t status; + + le32_to_cpus(&cmd_in->offset); + le32_to_cpus(&cmd_in->length); + + nvdimm_debug("Write Label Data: offset %#x length %#x.\n", + cmd_in->offset, cmd_in->length); + if (nvdimm->label_size < cmd_in->offset + cmd_in->length) { + nvdimm_debug("position %#x is beyond label data (len = %#lx).\n", + cmd_in->offset + cmd_in->length, nvdimm->label_size); + status = DSM_DEV_STATUS_INVALID_PARAS; + goto exit; + } + + if (cmd_in->length > nvdimm_get_max_xfer_label_size()) { + nvdimm_debug("set length (%#x) is larger than max_xfer (%#x).\n", + cmd_in->length, nvdimm_get_max_xfer_label_size()); + status = DSM_DEV_STATUS_INVALID_PARAS; + goto exit; + } + + status = DSM_STATUS_SUCCESS; + memcpy(nvdimm->label_data + cmd_in->offset, cmd_in->in_buf, + cmd_in->length); + +exit: + nvdimm_dsm_write_status(out, status); +} + static void nvdimm_dsm_write_nvdimm(dsm_in *in, GArray *out) { GSList *list = nvdimm_get_plugged_device_list(); @@ -689,6 +732,9 @@ static void nvdimm_dsm_write_nvdimm(dsm_in *in, GArray *out) case DSM_DEV_FUN_GET_NAMESPACE_LABEL_DATA: nvdimm_dsm_cmd_get_label_data(nvdimm, in, out); goto free; + case DSM_DEV_FUN_SET_NAMESPACE_LABEL_DATA: + nvdimm_dsm_cmd_set_label_data(nvdimm, in, out); + goto free; default: status = DSM_STATUS_NOT_SUPPORTED; }; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html