tree 7297ea6152001d4b7010c1d66a189981ece7fc68
parent d23b84a7eb2be944b12e6539cf627f595b299fda
author Jonathan Doman <jonathan.doman@intel.com> 1621878763 -0700
committer Jonathan Doman <jonathan.doman@intel.com> 1622133189 -0700

Implement Inventory.Item for CPU presence

Bmcweb Redfish code now relies on the xyz.openbmc_project.Inventory.Item
interface to determine Processor presence status. And if this interface
does not exist, CPUs are shown as Present by default. Therefore, to
avoid false positive presence, this commit fills out the interface based
on Status field of the Type 4 table.

Tested:
GET /redfish/v1/Systems/system/Processor/cpu1 (unpopulated socket)
-> Before change:
{
    ...
    "Manufacturer": "CPU1",
    "MaxSpeedMHz": 4000,
    "ProcessorId": {
        "EffectiveFamily": "Unknown Processor Family"
    },
    "Socket": "CPU1",
    "Status": {
        "Health": "OK",
        "State": "Enabled"
    },
    "Version": "CPU1"
    ...
}
-> After change:
{
    ...
    "Manufacturer": "",
    "MaxSpeedMHz": 0,
    "ProcessorId": {
        "EffectiveFamily": ""
    },
    "Socket": "CPU1",
    "Status": {
        "Health": "OK",
        "State": "Absent"
    },
    "Version": ""
    ...
}

GET /redfish/v1/Systems/system/Processor/cpu0 (populated socket)
-> Before/after change:
{
    ...
    "Status": {
        "Health": "OK",
        "State": "Enabled"
    },
    ...
}

Signed-off-by: Jonathan Doman <jonathan.doman@intel.com>
Change-Id: I8868919e3f919d774b8bedb6c48cc6e4bc764c26