On Sep 25, 2012, at 3:59 PM, Benjamin Herrenschmidt wrote: > On Tue, 2012-09-25 at 15:17 +0200, Segher Boessenkool wrote: >>>> Fine. But I believe that mfpvr emulation came first, which is the >>>> point >>>> I object to (see the mess that the fact that CPUID is available to >>>> applications made to x86 when SSE registers were added). >>> >>> Heh, possibly, I don't remember... I added the cputable, I think we >>> added mfpvr because we didn't have anything, then I added cputable >>> which >>> got us the HW caps, but some old stuff still relied on mfpvr so we >>> couldn't completely remove it. >> >> If I have my history right end up, MFPVR emulation was added for MoL. >> Which is funny (if you like that kind of thing) because it now hurts >> all other "hypervisor in userspace" kind of things, that might want >> to lie in their emulated PVR... > > Are you sure ? MOL had a kernel module, it wouldn't have needed that...
I feel like there was some JVMs (IBMs?) that used MFPVR to determine some things. - k _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
