[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v3 29/32] nvdimm: support DSM_CMD_GET_NAMESPACE_LABE
From: |
Xiao Guangrong |
Subject: |
[Qemu-devel] [PATCH v3 29/32] nvdimm: support DSM_CMD_GET_NAMESPACE_LABEL_DATA |
Date: |
Sun, 11 Oct 2015 11:53:01 +0800 |
Function 5 is used to get Namespace Label Data
Signed-off-by: Xiao Guangrong <address@hidden>
---
hw/mem/nvdimm/acpi.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/hw/mem/nvdimm/acpi.c b/hw/mem/nvdimm/acpi.c
index b420e2f..e0a37cb 100644
--- a/hw/mem/nvdimm/acpi.c
+++ b/hw/mem/nvdimm/acpi.c
@@ -401,6 +401,7 @@ struct dsm_in {
union {
uint8_t arg3[0];
cmd_in_set_label_data cmd_set_label_data;
+ cmd_in_get_label_data cmd_get_label_data;
};
} QEMU_PACKED;
typedef struct dsm_in dsm_in;
@@ -504,6 +505,35 @@ dsm_cmd_label_size(MemoryRegion *dsm_ram_mr, NVDIMMDevice
*nvdimm,
return DSM_STATUS_SUCCESS;
}
+static uint32_t dsm_cmd_get_label_data(NVDIMMDevice *nvdimm, dsm_in *in,
+ dsm_out *out)
+{
+ cmd_in_get_label_data *cmd_in = &in->cmd_get_label_data;
+ uint32_t length, offset, status;
+
+ length = cmd_in->length;
+ offset = cmd_in->offset;
+ le32_to_cpus(&length);
+ le32_to_cpus(&offset);
+
+ nvdebug("Read Label Data: offset %#x length %#x.\n", offset, length);
+
+ if (nvdimm->label_size < length + offset) {
+ nvdebug("position %#x is beyond label data (len = %#lx).\n",
+ length + offset, nvdimm->label_size);
+ out->len = sizeof(out->status);
+ status = DSM_STATUS_INVALID_PARAS;
+ goto exit;
+ }
+
+ status = DSM_STATUS_SUCCESS;
+ memcpy(out->cmd_get_label_data.out_buf, nvdimm->label_data +
+ offset, length);
+ out->len = sizeof(out->cmd_get_label_data) + length;
+exit:
+ return status;
+}
+
static void dsm_write_nvdimm(MemoryRegion *dsm_ram_mr, uint32_t handle,
uint32_t function, dsm_in *in, dsm_out *out)
{
@@ -526,6 +556,9 @@ static void dsm_write_nvdimm(MemoryRegion *dsm_ram_mr,
uint32_t handle,
case DSM_CMD_NAMESPACE_LABEL_SIZE:
status = dsm_cmd_label_size(dsm_ram_mr, nvdimm, out);
break;
+ case DSM_CMD_GET_NAMESPACE_LABEL_DATA:
+ status = dsm_cmd_get_label_data(nvdimm, in, out);
+ break;
default:
out->len = sizeof(out->status);
status = DSM_STATUS_NOT_SUPPORTED;
--
1.8.3.1
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, (continued)
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Xiao Guangrong, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Michael S. Tsirkin, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Igor Mammedov, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Xiao Guangrong, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Xiao Guangrong, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Igor Mammedov, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Michael S. Tsirkin, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Xiao Guangrong, 2015/10/19
- Re: [Qemu-devel] [PATCH v3 22/32] nvdimm: init the address region used by NVDIMM ACPI, Michael S. Tsirkin, 2015/10/19
[Qemu-devel] [PATCH v3 16/32] pc-dimm: rename pc-dimm.c and pc-dimm.h, Xiao Guangrong, 2015/10/10
[Qemu-devel] [PATCH v3 29/32] nvdimm: support DSM_CMD_GET_NAMESPACE_LABEL_DATA,
Xiao Guangrong <=
Re: [Qemu-devel] [PATCH v3 00/32] implement vNVDIMM, Bharata B Rao, 2015/10/11
Re: [Qemu-devel] [PATCH v3 00/32] implement vNVDIMM, Michael S. Tsirkin, 2015/10/12
Re: [Qemu-devel] [PATCH v3 00/32] implement vNVDIMM, Michael S. Tsirkin, 2015/10/19