Re: [PATCH 9/8] KVM: x86: limit MSR_IA32_SPEC_CTRL access based on CPUID availability

[Jim Mattson]

I'm going to try to get per-vCPU MSR bitmaps out today or tomorrow.

On Tue, Jan 9, 2018 at 8:11 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
> On 09/01/2018 16:58, Liran Alon wrote:
>>
>> The only thing I a bit dislike is that currently these MSRs are always pass-through to guest and therefore
>> there is no case vmx_set_msr() is called with !msr_info->host_initiated.
>> Don't you think we should BUG_ON(!msr_info->host_initiated)?
>
> All this is in flux.  We'll probably get per-VCPU MSR bitmaps anyway
> before this patch (which is not part of the initial, minimal fix) is
> committed.
>
> Paolo
>