From 3cc030739af15e5431ef6dcf8c09a1e49759a7cc Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Fri, 24 Jun 2016 18:55:58 +0200 Subject: [PATCH 29/33] nvdimm acpi: support Set Namespace Label Data function RH-Author: Stefan Hajnoczi Message-id: <1466794559-27963-22-git-send-email-stefanha@redhat.com> Patchwork-id: 70788 O-Subject: [RHEV-7.3 qemu-kvm-rhev PATCH v2 21/22] nvdimm acpi: support Set Namespace Label Data function Bugzilla: 1270345 RH-Acked-by: Paolo Bonzini RH-Acked-by: Igor Mammedov RH-Acked-by: Michael S. Tsirkin From: Xiao Guangrong Function 6 is used to set Namespace Label Data Reviewed-by: Stefan Hajnoczi Signed-off-by: Xiao Guangrong Reviewed-by: Stefan Hajnoczi Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin (cherry picked from commit 14e44198ffe6d96d3966c091eb97f2df46839519) Signed-off-by: Stefan Hajnoczi Signed-off-by: Miroslav Rezanina --- hw/acpi/nvdimm.c | 44 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 388d42e..e486128 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); -- 1.8.3.1