Re: [PATCH v5 2/3] KVM: x86: Introduce allow list for MSR emulation

2020-08-10 Thread Aaron Lewis
On Fri, Aug 7, 2020 at 8:57 AM Alexander Graf wrote: > > It's not desireable to have all MSRs always handled by KVM kernel space. Some > MSRs would be useful to handle in user space to either emulate behavior (like > uCode updates) or differentiate whether they are valid based on the CPU model. >

[PATCH v5 2/3] KVM: x86: Introduce allow list for MSR emulation

2020-08-07 Thread Alexander Graf
It's not desireable to have all MSRs always handled by KVM kernel space. Some MSRs would be useful to handle in user space to either emulate behavior (like uCode updates) or differentiate whether they are valid based on the CPU model. To allow user space to specify which MSRs it wants to see