Resolving a hardware fault occurrence in a multi-domain device

A method comprising:

• detecting, by a fault structure of a first branch domain, a hardware fault occurrence in the first branch domain;
• determining, by the fault structure of the first branch domain, a response to the detected hardware fault occurrence;
• escalating, by the fault structure of the first branch domain, the detected hardware fault occurrence to a fault structure circuit of a root domain;
• and
• resolving, by the fault structure of the root domain, the detected hardware fault occurrence escalated from the first branch domain, wherein:
• the root domain comprises a logic circuit, a fault-structure circuit, a power delivery network (PDN) and a clock distribution network (CDN);
• the first branch domain comprises a logic circuit, a fault-structure circuit, a PDN, and a CDN;
• the PDN of the first branch domain is operable independently of the PDN of the root domain;
• and
• the CDN of the first branch domain is operable independently of the CDN of the root domain.

A non-transient computer-readable medium comprising instructions that, when executed, are configured to cause:

• detecting, by a fault structure of a first branch domain, a hardware fault occurrence in the first branch domain;
• determining, by the fault structure of the first branch domain, a response to the detected hardware fault occurrence;
• escalating, by the fault structure of the first branch domain, the detected hardware fault occurrence to a fault structure circuit of a root domain;
• and
• resolving, by the fault structure of the root domain, the detected hardware fault occurrence escalated from the first branch domain.