[meta-virtualization] MinnowBoard Max Hardware Virtualization

[Mark Asselstine]

On Fri, Feb 19, 2016 at 8:11 AM, Supriti Singh <supritisingh08 at gmail.com> wrote:
> I checked the IA32_FEATURE_CONTROL and its value is 5.
>
> So my guess is its somehow the kvm yocto which is not right.

There would be no changes in the kernel around KVM, at least it is
highly unlikely. Is 'lscpu' available in your rootfs? what does it
report for Virtualization? Failing this I would change kvm and
kvm-intel to be built as modules, this will allow you to unload/load
them and open the possibility for you to up the verbosity of the
kernel logging or instrumenting the support check with additional
printks.

Mark


>
>
>
> On Thu, Feb 18, 2016 at 4:04 PM, Supriti Singh <supritisingh08 at gmail.com>
> wrote:
>>
>> Hello,
>>
>> I compiled the latest version of yocto with meta-virtualization layer for
>> Minnowboard Max.
>>
>> MbMax have hardware virtualization support,
>>
>> grep vmx /cpu/procinfo shows the vmx flags.
>>
>> But when I boot the board, dmesg|grep kvm shows "kvm: no hardware
>> support".
>>
>> I do see kvm loaded as module. Is there some other settings that I need to
>> switch on, so that kvm understands that the hardware has the correct
>> virtualization support.
>>
>> Or could it be just the UEFI thats disabling it?
>>
>> modinfo kvm-intel gives the following output
>> filename:
>> /lib/modules/4.1.15-yocto-standard/kernel/arch/x86/kvm/kvm-intel.ko
>> license:        GPL
>> author:         Qumranet
>> alias:          cpu:type:x86,ven*fam*mod*:feature:*0085*
>> depends:        kvm
>> intree:         Y
>> vermagic:       4.1.15-yocto-standard SMP preempt mod_unload
>> parm:           vpid:bool
>> parm:           flexpriority:bool
>> parm:           ept:bool
>> parm:           unrestricted_guest:bool
>> parm:           eptad:bool
>> parm:           emulate_invalid_guest_state:bool
>> parm:           vmm_exclusive:bool
>> parm:           fasteoi:bool
>> parm:           enable_apicv:bool
>> parm:           enable_shadow_vmcs:bool
>> parm:           nested:bool
>> parm:           pml:bool
>> parm:           ple_gap:int
>> parm:           ple_window:int
>> parm:           ple_window_grow:int
>> parm:           ple_window_shrink:int
>> parm:           ple_window_max:int
>>
>> Thanks,
>> Supriti
>>
>
>
> --
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