Re: [Xen-devel] [PATCH 20 of 20] n2 MSR handling and capability exposure

[Jeroen Groenewegen van der Weyden <groen692@xxxxxxxxx>]

Just a remark to avoid misunderstanding

The first nested  KVM guest is running ok, for as long as i keep it running
When starting a second nested KVM guest (in the same Xen DOMU) that is 
when the Xen DOMU becomes in-responsive. In DOM0 it it shown that it is 
still running and consuming time.

The complete test is like this

dom0
opensuse 11.4 x86
xen: unstable cs 23640

domu1 (HVM)
sles11sp1
mem: 8 GB
vcpu: 4

domu1 guests
1) qemu-kvm: propetary OS
2) qemu-kvm: propetary OS
3) qemu-kvm: SLES10SP3
4) qemu-kvm: SLES10SP3

mfg,
Jeroen

Op 1-7-2011 11:54, Christoph Egger schreef:
> KVM on Xen works for me. Also KVM on Xen on Xen.
>
> Christoph
>
>
> On 07/01/11 11:01, Tim Deegan wrote:
> > Eddie?  Did you test with KVM guests?  Is this expected to work?
> >
> > Tim.
> >
> > At 15:14 +0100 on 30 Jun (1309446872), Jeroen Groenewegen van der 
> > Weyden wrote:
> > > Hi Tim/Eddi/Christoph,
> > >
> > > I just gave it a go again with cs23640. But the behaviour is still the
> > > same. so L1 becomes inresponsive after starting the second nested 
> > > quest.
> > > I can deliver any trace input you want/need.
> > >
> > > mfg,
> > > Jeroen.
> > >
> > > Op 20-6-2011 8:31, Jeroen Groenewegen van der Weyden schreef:
> > > > Hi,
> > > >
> > > > Based on these patch series, I gave it go.
> > > > I noticed until now that the system becomes in-responsive a few second
> > > > after activating the second nested guest.
> > > > steps:
> > > > 1) dom0 creates domu (pass)
> > > > 2) domU creates first kvm guest (pass)
> > > > 3) domU creates second kvm guest (fail)
> > > > after the third step the domu becomes in-responsive. eg no network /
> > > > vnc console response. in dom0 is shows domu is stil running.
> > > >
> > > > I'm able to provide any input needed, just tell me what you need (and
> > > > how).
> > > >
> > > > mfg,
> > > > Jeroen
> > > >
> > > > My HW setup
> > > > mobo asus z8nr-d12
> > > > proc: 2 times e5645
> > > > mem: 96 GB
> > > >
> > > > My goal/test
> > > > in short: HW ->  dom0 ->  domU ->  4 time kvm guest
> > > >
> > > > dom0
> > > > opensuse 11.4 x86
> > > > xen: unstable cs 23553
> > > >
> > > > domu (HVM)
> > > > sles11sp1
> > > > mem: 8 GB
> > > > vcpu: 4
> > > >
> > > > domu guests
> > > > 1) qemu-kvm: propetary OS
> > > > 2) qemu-kvm: propetary OS
> > > > 3) qemu-kvm: SLES10SP3
> > > > 4) qemu-kvm: SLES10SP3
> > > >
> > > >
> > > >
> > > > Op 15-6-2011 14:45, Tim Deegan schreef:
> > > > > At 10:29 +0800 on 14 Jun (1308047377), Dong, Eddie wrote:
> > > > > > > > +    case MSR_IA32_VMX_MISC:
> > > > > > > > +    case MSR_IA32_VMX_CR0_FIXED0:
> > > > > > > > +    case MSR_IA32_VMX_CR0_FIXED1:
> > > > > > > > +    case MSR_IA32_VMX_CR4_FIXED0:
> > > > > > > > +    case MSR_IA32_VMX_CR4_FIXED1:
> > > > > > > > +    case MSR_IA32_VMX_VMCS_ENUM:
> > > > > > > > +        gdprintk(XENLOG_WARNING, "VMX MSR %x not fully supported
> > > > > > > yet.\n", msr);
> > > > > > >
> > > > > > > Are you planning to fix this before checking in this series?  I'm
> > > > > > > pretty
> > > > > > > sure that at least MSR_IA32_VMX_VMCS_ENUM should be trivial, 
> > > > > > > since you
> > > > > > > define your own VMCS format.
> > > > > > Sure, the updated patch is attached.
> > > > > Thanks.  I've applied the full series.  I cleaned up a few things for
> > > > > the 32-bit build as well.
> > > > >
> > > > > Cheers,
> > > > >
> > > > > Tim.

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