#define OPAL_INT_SET_MFRR                    125

static int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr);

Modelled on the H_IPI PAPR call.

For P9 and above systems where host doesn’t know about interrupt controller. An OS can instead make OPAL calls for XICS emulation.

For an OS to use this OPAL call, an ibm,opal-intc compatible device must exist in the device tree (see I - Device-tree updates). If OPAL does not create such a device, the host OS MUST NOT use this call.