Messages in this thread | | | Subject | Re: [PATCH 0/3] x86/paravirt: Fix baremetal paravirt MSR ops | From | Paolo Bonzini <> | Date | Thu, 17 Sep 2015 13:40:30 +0200 |
| |
On 17/09/2015 10:58, Peter Zijlstra wrote: > But the far greater problem I have with the whole virt thing is that > you cannot use rdmsr_safe() to probe if an MSR exists at all because, as > you told me, these virt thingies return 0 for all 'unknown' MSRs instead > of faulting.
At least for KVM, that behavior is opt-in (the ignore_msrs parameter) and no distro that I know enables it by default.
Paolo
| |