> How does one patch a CPU? Microcode updates that enable or disable various feature flags or patch the microcode used to interpret specific instructions from

> How does one patch a CPU? Microcode updates that enable or disable various feature flags or patch the microcode used to interpret specific instructions from the outside CISC world to the native RISC world that all modern x86 processors use. In terms of deployment, there is support for OSs to deploy microcode from Ring 0 each time the system boots, or the permanent fix is a new UEFI that includes the new microcode at system init.