Messages in this thread | | | Date | Mon, 25 Mar 2019 20:38:49 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH 1/2] kvm/x86: Move MSR_K7_HWCR to svm.c |
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On Mon, Mar 25, 2019 at 12:21:11PM -0700, Sean Christopherson wrote: > Generally speaking, the goal is to support cross-vendor VMs without having > to modify the guest kernel, i.e. exact emulation is out of scope. This > means "emulating" cross-vendor MSRs that the guest expects to exist to the > point where the guest won't explode, e.g. in the case of MSR_K7_HWCR, Linux > expects the MSR to exist on all AMD platforms and AFAICT will die during > boot if it doesn't. > > The rule of thumb for "what MSRs can a guest reasonably expect to exist" > is fluid.
Ok, I'll keep it in the common MSR accessors in the next version.
Thx for confirming what I was suspecting.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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