[RFC PATCH 0/5] KVM: x86: exit to user space on unhandled MSR accesses

There are numerous MSRs that kvm does not currently handle. On Intel platforms we have observed guest VMs accessing some of these MSRs (for example, MSR_PLATFORM_INFO) and behaving poorly (to the point of guest OS crashes) when they receive a GP fault because the MSR is not emulated. This patchset

Re: [RFC PATCH 0/5] KVM: x86: exit to user space on unhandled MSR accesses

Peter Hornyack writes: > There are numerous MSRs that kvm does not currently handle. On Intel > platforms we have observed guest VMs accessing some of these MSRs (for > example, MSR_PLATFORM_INFO) and behaving poorly (to the point of guest OS > crashes) when they receive a GP fault because the MS

Re: [RFC PATCH 0/5] KVM: x86: exit to user space on unhandled MSR accesses

On Wed, Aug 19, 2015 at 2:43 PM, Bandan Das wrote: > Peter Hornyack writes: > >> There are numerous MSRs that kvm does not currently handle. On Intel >> platforms we have observed guest VMs accessing some of these MSRs (for >> example, MSR_PLATFORM_INFO) and behaving poorly (to the point of guest

Re: [RFC PATCH 0/5] KVM: x86: exit to user space on unhandled MSR accesses

Peter Hornyack writes: > On Wed, Aug 19, 2015 at 2:43 PM, Bandan Das wrote: >> Peter Hornyack writes: >> >>> There are numerous MSRs that kvm does not currently handle. On Intel >>> platforms we have observed guest VMs accessing some of these MSRs (for >>> example, MSR_PLATFORM_INFO) and behavi