mirror of https://gitee.com/openkylin/qemu.git
nvdimm acpi: support Get Namespace Label Data function
Function 5 is used to get 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>
This commit is contained in:
parent
5797dcdc7a
commit
2b9e57fc7f
|
@ -440,6 +440,14 @@ struct NvdimmFuncGetLabelSizeOut {
|
|||
typedef struct NvdimmFuncGetLabelSizeOut NvdimmFuncGetLabelSizeOut;
|
||||
QEMU_BUILD_BUG_ON(sizeof(NvdimmFuncGetLabelSizeOut) > 4096);
|
||||
|
||||
struct NvdimmFuncGetLabelDataIn {
|
||||
uint32_t offset; /* the offset in the namespace label data area. */
|
||||
uint32_t length; /* the size of data is to be read via the function. */
|
||||
} QEMU_PACKED;
|
||||
typedef struct NvdimmFuncGetLabelDataIn NvdimmFuncGetLabelDataIn;
|
||||
QEMU_BUILD_BUG_ON(sizeof(NvdimmFuncGetLabelDataIn) +
|
||||
offsetof(NvdimmDsmIn, arg3) > 4096);
|
||||
|
||||
struct NvdimmFuncGetLabelDataOut {
|
||||
/* the size of buffer filled by QEMU. */
|
||||
uint32_t len;
|
||||
|
@ -447,6 +455,7 @@ struct NvdimmFuncGetLabelDataOut {
|
|||
uint8_t out_buf[0]; /* the data got via Get Namesapce Label function. */
|
||||
} QEMU_PACKED;
|
||||
typedef struct NvdimmFuncGetLabelDataOut NvdimmFuncGetLabelDataOut;
|
||||
QEMU_BUILD_BUG_ON(sizeof(NvdimmFuncGetLabelDataOut) > 4096);
|
||||
|
||||
struct NvdimmFuncSetLabelDataIn {
|
||||
uint32_t offset; /* the offset in the namespace label data area. */
|
||||
|
@ -542,6 +551,71 @@ static void nvdimm_dsm_label_size(NVDIMMDevice *nvdimm, hwaddr dsm_mem_addr)
|
|||
sizeof(label_size_out));
|
||||
}
|
||||
|
||||
static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm,
|
||||
uint32_t offset, uint32_t length)
|
||||
{
|
||||
uint32_t ret = 3 /* Invalid Input Parameters */;
|
||||
|
||||
if (offset + length < offset) {
|
||||
nvdimm_debug("offset %#x + length %#x is overflow.\n", offset,
|
||||
length);
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (nvdimm->label_size < offset + length) {
|
||||
nvdimm_debug("position %#x is beyond label data (len = %" PRIx64 ").\n",
|
||||
offset + length, nvdimm->label_size);
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (length > nvdimm_get_max_xfer_label_size()) {
|
||||
nvdimm_debug("length (%#x) is larger than max_xfer (%#x).\n",
|
||||
length, nvdimm_get_max_xfer_label_size());
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0 /* Success */;
|
||||
}
|
||||
|
||||
/*
|
||||
* DSM Spec Rev1 4.5 Get Namespace Label Data (Function Index 5).
|
||||
*/
|
||||
static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
|
||||
hwaddr dsm_mem_addr)
|
||||
{
|
||||
NVDIMMClass *nvc = NVDIMM_GET_CLASS(nvdimm);
|
||||
NvdimmFuncGetLabelDataIn *get_label_data;
|
||||
NvdimmFuncGetLabelDataOut *get_label_data_out;
|
||||
uint32_t status;
|
||||
int size;
|
||||
|
||||
get_label_data = (NvdimmFuncGetLabelDataIn *)in->arg3;
|
||||
le32_to_cpus(&get_label_data->offset);
|
||||
le32_to_cpus(&get_label_data->length);
|
||||
|
||||
nvdimm_debug("Read Label Data: offset %#x length %#x.\n",
|
||||
get_label_data->offset, get_label_data->length);
|
||||
|
||||
status = nvdimm_rw_label_data_check(nvdimm, get_label_data->offset,
|
||||
get_label_data->length);
|
||||
if (status != 0 /* Success */) {
|
||||
nvdimm_dsm_no_payload(status, dsm_mem_addr);
|
||||
return;
|
||||
}
|
||||
|
||||
size = sizeof(*get_label_data_out) + get_label_data->length;
|
||||
assert(size <= 4096);
|
||||
get_label_data_out = g_malloc(size);
|
||||
|
||||
get_label_data_out->len = cpu_to_le32(size);
|
||||
get_label_data_out->func_ret_status = cpu_to_le32(0 /* Success */);
|
||||
nvc->read_label_data(nvdimm, get_label_data_out->out_buf,
|
||||
get_label_data->length, get_label_data->offset);
|
||||
|
||||
cpu_physical_memory_write(dsm_mem_addr, get_label_data_out, size);
|
||||
g_free(get_label_data_out);
|
||||
}
|
||||
|
||||
static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
|
||||
{
|
||||
NVDIMMDevice *nvdimm = nvdimm_get_device_by_handle(in->handle);
|
||||
|
@ -554,7 +628,8 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
|
|||
supported_func |= 0x1 /* Bit 0 indicates whether there is
|
||||
support for any functions other
|
||||
than function 0. */ |
|
||||
1 << 4 /* Get Namespace Label Size */;
|
||||
1 << 4 /* Get Namespace Label Size */ |
|
||||
1 << 5 /* Get Namespace Label Data */;
|
||||
}
|
||||
nvdimm_dsm_function0(supported_func, dsm_mem_addr);
|
||||
return;
|
||||
|
@ -574,6 +649,12 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
|
|||
return;
|
||||
}
|
||||
break;
|
||||
case 5 /* Get Namespace Label Data */:
|
||||
if (nvdimm->label_size) {
|
||||
nvdimm_dsm_get_label_data(nvdimm, in, dsm_mem_addr);
|
||||
return;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr);
|
||||
|
|
Loading…
Reference in New Issue