PSL_IR
#define PSL_USERSET (PSL_EE | PSL_PR | PSL_ME | PSL_IR | PSL_DR | PSL_RI)
: "=r"(scratch) : "K"(PSL_IR|PSL_DR|PSL_ME|PSL_RI));
mtmsr(msr | (PSL_DR|PSL_IR));
mtmsr(msr | (PSL_DR|PSL_IR));
(PSL_SF | PSL_HV | PSL_EE | PSL_PR | PSL_ME | PSL_IR | PSL_DR | PSL_RI)