On 07/10/2012 07:44 PM, Alexander Graf wrote: > > On 11.07.2012, at 02:34, Scott Wood wrote: >> +#ifdef CONFIG_BOOKE >> + /* >> + * We're not changing address space on Book E, and the extra rfi >> + * can hurt when virtualized without hardware support -- whereas >> + * mtmsr can be paravirtualized. > > We can always paravirtualize RFI as well if it makes sense.
I'm not sure that's possible. We thought about it a while back, but IIRC the difficulty was not leaving a register clobbered. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
