On Wednesday, April 17, 2019 at 3:10:54 PM UTC+1, Dylanger Daly wrote: > Hey Guys, > > I'm not able to undervolt my laptop because I can't seem to write to the MSR > 0x150 (Voltage Offset). > > I _think_ it's because Xen dosen't allow wrmsr in dom0 to actually write > anything. > > I think wrmsr should be available to dom0, but not other appVMs. > > Does anyone know what could be blocking dom0 from writing MSRs? > > Cheers!
For anyone wondering I've managed to enable Undervolting Intel CPUs on Qubes: https://github.com/QubesOS/qubes-vmm-xen/pull/55/commits/0a64e97df34a352366787bbd19ff27f5dba6e13a I'm trying to get it merged into Xen, however the process is convoluted to say the least, in any case, if you want to use it, review the patches and apply to `vmm-xen` -- You received this message because you are subscribed to the Google Groups "qubes-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-devel/1992287c-7fb9-47fa-b661-c24a818152d5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
