[PULL 05/11] hw/nvme: enforce common serial per subsystem

From: Klaus Jensen <k.jensen(a)samsung.com&gt; The Identify Controller Serial Number (SN) is the serial number for the NVM subsystem and must be the same across all controller in the NVM subsystem. Enforce this. Reviewed-by: Christoph Hellwig <hch(a)lst.de&gt; Reviewed-by: Keith Busch <kbusch(a)kernel.org&gt; Signed-off-by: Klaus Jensen <k.jensen(a)samsung.com&gt; --- hw/nvme/nvme.h | 1 + hw/nvme/subsys.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index 677381932569..e41771604f59 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -48,6 +48,7 @@ typedef struct NvmeSubsystem { DeviceState parent_obj; NvmeBus bus; uint8_t subnqn[256]; + char *serial; NvmeCtrl *ctrls[NVME_MAX_CONTROLLERS]; NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1]; diff --git a/hw/nvme/subsys.c b/hw/nvme/subsys.c index fb58d639504e..691a90d20947 100644 --- a/hw/nvme/subsys.c +++ b/hw/nvme/subsys.c @@ -27,6 +27,13 @@ int nvme_subsys_register_ctrl(NvmeCtrl *n, Error **errp) return -1; } + if (!subsys->serial) { + subsys->serial = g_strdup(n->params.serial); + } else if (strcmp(subsys->serial, n->params.serial)) { + error_setg(errp, "invalid controller serial"); + return -1; + } + subsys->ctrls[cntlid] = n; for (nsid = 1; nsid < ARRAY_SIZE(subsys->namespaces); nsid++) { -- 2.36.1