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hw/nvme: enforce common serial per subsystem

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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++) {