commit e7725610df6ecb4943b0feca920ccc0dd0fad93c
author Arun Lal K M <arun.lal@intel.com> Thu Jul 15 18:20:58 2021 +0000
committer arun.lal <arun.lal@intel.com> Tue Aug 03 08:53:29 2021 +0000
tree 5618307f79c5651c6eca3e552144a7c2a1793cef
parent b485b1e67201597c2cbc9683892624304e442d32

Add depex support in bios.xml parsing.

Added logic to execute depex expression for every knob in bios.xml.
knob is added to BiosAttributeRegistry only if depex evaluation result
is TRUE.

Tested:
By giving GET Request to
'redfish/v1/Registries/BiosAttributeRegistry/BiosAttributeRegistry'.
Output sample showing few knobs added becuase depex evaluation result
was TRUE:

{
    "AttributeName": "AEPErrorInjEn",
    "CurrentValue": "0x00",
    "DefaultValue": "0x00",
    "DisplayName": "AEPErrorInjEn",
    "HelpText": "Enable/Disable PMem Error Injection",
    "MenuPath": "./",
    "ReadOnly": false,
    "Type": "String",
    "Value": [
        {
            "OneOf": "0x0"
        },
        {
            "OneOf": "0x1"
        }
    ]
}
{
    "AttributeName": "wrVrefCenter",
    "CurrentValue": "0x01",
    "DefaultValue": "0x01",
    "DisplayName": "wrVrefCenter",
    "HelpText": "Write Vref Centering Disable/Enable",
    "MenuPath": "./",
    "ReadOnly": false,
    "Type": "String",
    "Value": [
        {
            "OneOf": "0x0"
        },
        {
            "OneOf": "0x1"
        }
    ]
}

Following are few knobs rejected becuase depex evaluation
result was FALSE:

<knob  type="scalar" setupType="oneof" name="PfrProvision"
varstoreIndex="04" prompt="PFR Provision"
description="Selectable if PFR is not locked." size="1"
offset="0x0126"
depex="Sif( PfrSupported _EQU_ 0 ) _AND_ Gif( PfrLockStatus _EQU_ 1 OR
PfrProvisionStatus _EQU_ 1 )"
default="0x00" CurrentVal="0x00">
    <options>
        <option text="Disable" value="0x0"/>
        <option text="Enable" value="0x1"/>
    </options>
</knob>

<knob  type="scalar" setupType="oneof" name="SataHotPlugController0_0"
varstoreIndex="01" prompt="
Hot Plug" description="Designates this port as Hot Pluggable." size="1"
offset="0x0119"
depex="Sif( PchSata_0 _EQU_ 0 ) _AND_
Sif( SataExternalController0_0 _EQU_ 1 )" default="0x00"
CurrentVal="0x00">
    <options>
        <option text="Disabled" value="0x0"/>
        <option text="Enabled" value="0x1"/>
    </options>
</knob>

Signed-off-by: Arun Lal K M <arun.lal@intel.com>
Change-Id: Iff1ea01fb06200e21cc7f2a2e0fdfdff70376581