[PATCH v3 17/18] hw/block/nvme: provide the mandatory subnqn field

[Klaus Jensen]

From: Klaus Jensen <k.jensen@samsung.com>

The SUBNQN field is mandatory in NVM Express 1.3.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
 hw/block/nvme.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 07d58aa945f2..e3984157926b 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -2141,6 +2141,7 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice 
*pci_dev)
 {
     NvmeIdCtrl *id = &n->id_ctrl;
     uint8_t *pci_conf = pci_dev->config;
+    char *subnqn;
 
     id->vid = cpu_to_le16(pci_get_word(pci_conf + PCI_VENDOR_ID));
     id->ssvid = cpu_to_le16(pci_get_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID));
@@ -2179,6 +2180,10 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice 
*pci_dev)
     id->oncs = cpu_to_le16(NVME_ONCS_WRITE_ZEROS | NVME_ONCS_TIMESTAMP |
                            NVME_ONCS_FEATURES);
 
+    subnqn = g_strdup_printf("nqn.2019-08.org.qemu:%s", n->params.serial);
+    strpadcpy((char *)id->subnqn, sizeof(id->subnqn), subnqn, '\0');
+    g_free(subnqn);
+
     id->psd[0].mp = cpu_to_le16(0x9c4);
     id->psd[0].enlat = cpu_to_le32(0x10);
     id->psd[0].exlat = cpu_to_le32(0x4);
-- 
2.27.0