Messages in this thread | | | Subject | Re: [PATCH 7/9] KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES | From | Paolo Bonzini <> | Date | Mon, 19 Feb 2018 14:10:11 +0100 |
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On 16/02/2018 17:29, Jim Mattson wrote: > On Fri, Feb 16, 2018 at 6:18 AM, Paolo Bonzini <pbonzini@redhat.com> wrote: > >> Uhm, taking contents from the hardware is wrong (guess why---live >> migration). I'll send a revert of those two lines. > > Hardware seems like a reasonable place to get the default value (cf. > the VMX capability MSRs).
There are some differences:
- a zero value for ARCH_CAPABILITIES should be safe, while a zero value for VMX capabilities doesn't really make sense. On the contrary, a nonzero value for ARCH_CAPABILITIES is not safe across live migration.
- VMX doesn't support live migration; before adding that support we will probably have Tom's patches to retrieve MSR capabilities.
Thanks,
Paolo
> Should these two lines just be moved to > vmx_create_cpu? >
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