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[Qemu-devel] [PATCH 14/15] nvdimm acpi: support Set Namespace Label Data
From: |
Xiao Guangrong |
Subject: |
[Qemu-devel] [PATCH 14/15] nvdimm acpi: support Set Namespace Label Data function |
Date: |
Thu, 17 Mar 2016 16:33:00 +0800 |
Function 6 is used to set Namespace Label Data
Signed-off-by: Xiao Guangrong <address@hidden>
---
hw/acpi/nvdimm.c | 42 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 41 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index 1240328..f17be52 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -461,6 +461,8 @@ 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) + sizeof(NvdimmDsmIn) >
+ TARGET_PAGE_SIZE);
static void
nvdimm_dsm_function0(uint32_t supported_func, hwaddr dsm_mem_addr)
@@ -612,6 +614,38 @@ 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 */) {
+ return nvdimm_dsm_no_payload(status, dsm_mem_addr);
+ }
+
+ assert(sizeof(*in) + sizeof(*set_label_data) + set_label_data->length <=
+ TARGET_PAGE_SIZE);
+
+ 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);
@@ -625,7 +659,8 @@ 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 */;
}
return nvdimm_dsm_function0(supported_func, dsm_mem_addr);
}
@@ -647,6 +682,11 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr
dsm_mem_addr)
nvdimm_dsm_get_label_data(nvdimm, in, dsm_mem_addr);
}
break;
+ case 0x6 /* Set Namespace Label Data */:
+ if (nvdimm->reserve_label) {
+ nvdimm_dsm_set_label_data(nvdimm, in, dsm_mem_addr);
+ }
+ break;
default:
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr);
}
--
1.8.3.1
- [Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method, (continued)
- [Qemu-devel] [PATCH 08/15] nvdimm acpi: save arg3 of _DSM method, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 10/15] nvdimm acpi: abstract the operations for root device and nvdimm devices, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 09/15] nvdimm acpi: check UUID, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 11/15] nvdimm acpi: check revision, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 13/15] nvdimm acpi: support Get Namespace Label Data function, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 12/15] nvdimm acpi: support Get Namespace Label Size function, Xiao Guangrong, 2016/03/17
- [Qemu-devel] [PATCH 14/15] nvdimm acpi: support Set Namespace Label Data function,
Xiao Guangrong <=
- [Qemu-devel] [PATCH 15/15] docs: add NVDIMM ACPI documentation, Xiao Guangrong, 2016/03/17
- Re: [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support, Stefan Hajnoczi, 2016/03/17
Re: [Qemu-devel] [PATCH 00/15] NVDIMM: introduce nvdimm label support, Michael S. Tsirkin, 2016/03/22