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authorXiao Guangrong <guangrong.xiao@linux.intel.com>2016-06-07 20:22:08 +0800
committerMichael S. Tsirkin <mst@redhat.com>2016-06-24 05:13:57 +0300
commit14e44198ffe6d96d3966c091eb97f2df46839519 (patch)
tree423e9e6030264cac33481a48e0ad2ff2f161cfa9 /hw/acpi
parent2b9e57fc7f9d72841d1defb83f0fe79011065ae0 (diff)
nvdimm acpi: support Set Namespace Label Data function
Function 6 is used to set Namespace Label Data Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi')
-rw-r--r--hw/acpi/nvdimm.c44
1 files changed, 43 insertions, 1 deletions
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index 388d42e165..e486128aa1 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -463,6 +463,8 @@ struct NvdimmFuncSetLabelDataIn {
uint8_t in_buf[0]; /* the data written to label data area. */
} QEMU_PACKED;
typedef struct NvdimmFuncSetLabelDataIn NvdimmFuncSetLabelDataIn;
+QEMU_BUILD_BUG_ON(sizeof(NvdimmFuncSetLabelDataIn) +
+ offsetof(NvdimmDsmIn, arg3) > 4096);
static void
nvdimm_dsm_function0(uint32_t supported_func, hwaddr dsm_mem_addr)
@@ -616,6 +618,39 @@ static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
g_free(get_label_data_out);
}
+/*
+ * DSM Spec Rev1 4.6 Set Namespace Label Data (Function Index 6).
+ */
+static void nvdimm_dsm_set_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
+ hwaddr dsm_mem_addr)
+{
+ NVDIMMClass *nvc = NVDIMM_GET_CLASS(nvdimm);
+ NvdimmFuncSetLabelDataIn *set_label_data;
+ uint32_t status;
+
+ set_label_data = (NvdimmFuncSetLabelDataIn *)in->arg3;
+
+ le32_to_cpus(&set_label_data->offset);
+ le32_to_cpus(&set_label_data->length);
+
+ nvdimm_debug("Write Label Data: offset %#x length %#x.\n",
+ set_label_data->offset, set_label_data->length);
+
+ status = nvdimm_rw_label_data_check(nvdimm, set_label_data->offset,
+ set_label_data->length);
+ if (status != 0 /* Success */) {
+ nvdimm_dsm_no_payload(status, dsm_mem_addr);
+ return;
+ }
+
+ assert(sizeof(*in) + sizeof(*set_label_data) + set_label_data->length <=
+ 4096);
+
+ nvc->write_label_data(nvdimm, set_label_data->in_buf,
+ set_label_data->length, set_label_data->offset);
+ nvdimm_dsm_no_payload(0 /* Success */, dsm_mem_addr);
+}
+
static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
{
NVDIMMDevice *nvdimm = nvdimm_get_device_by_handle(in->handle);
@@ -629,7 +664,8 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
support for any functions other
than function 0. */ |
1 << 4 /* Get Namespace Label Size */ |
- 1 << 5 /* Get Namespace Label Data */;
+ 1 << 5 /* Get Namespace Label Data */ |
+ 1 << 6 /* Set Namespace Label Data */;
}
nvdimm_dsm_function0(supported_func, dsm_mem_addr);
return;
@@ -655,6 +691,12 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
return;
}
break;
+ case 0x6 /* Set Namespace Label Data */:
+ if (nvdimm->label_size) {
+ nvdimm_dsm_set_label_data(nvdimm, in, dsm_mem_addr);
+ return;
+ }
+ break;
}
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr);