MSR_BE
{MSR_BE, "BE"},
#define MSR_DEBUGCHANGE (MSR_SE | MSR_BE)
regs_set_return_msr(regs, (regs->msr & ~MSR_BE) | MSR_SE);
regs_set_return_msr(regs, (regs->msr & ~MSR_SE) | MSR_BE);
regs_set_return_msr(regs, regs->msr & ~(MSR_SE | MSR_BE));
new_msr |= MSR_BE;
new_msr &= ~MSR_BE;
#define clear_br_trace(regs) (regs_set_return_msr((regs), (regs)->msr & ~MSR_BE))
smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE |
smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE;