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hw/nvme: enforce common serial per subsystem 

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@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen 2022-04-29 10:33:32 +02:00
parent 9235a72a5d
commit a859eb9f8f
2 changed files with 8 additions and 0 deletions
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1
hw/nvme/nvme.h
View File

@ -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];

7
hw/nvme/subsys.c
View File

@ -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++) {