Xen users - Feb 2011 - HVM support Debian Squeeze

Hi everybody, I''m trying to use Xen 4.0.1 from Debian Squeeze
repositories.
I''ve installed it on my notebook with AMD-V support and it does not
show to
support HVM(Dont know?!?!?!?). PVM works great. I''m just imagining that
my
notebook cpu dont support it. Well, now I''ve try it on a Dell Server
T610
with cpu E5630 and i have the same problem. Just to see if it really
supports i installed CentOS 5 and Xen 3.x and it works great, both HVM and
PVM. Any tricks in Debian do make it work?
PS.: I see on my setup (on notebook and server) and Virtualization is
enabled.
Thanks guys

-- 
Luciano Barreto


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Hi!
> Hi everybody, I''m trying to use Xen 4.0.1 from Debian Squeeze
repositories.
> I''ve installed it on my notebook with AMD-V support and it does
not show to
> support HVM(Dont know?!?!?!?). PVM works great. I''m just imagining
that my
[SNIP]
apt-get install xen-qemu-dm-4.0

-- Adi

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> On Wed, 16 Feb 2011 20:16:53 +0100 <adi@cg.tuwien.ac.at> wrote:
>
> Hi!
>
> > Hi everybody, I''m trying to use Xen 4.0.1 from Debian Squeeze
repositories.
> > I''ve installed it on my notebook with AMD-V support and it
does not show to
> > support HVM(Dont know?!?!?!?). PVM works great. I''m just
imagining that my
> >
> [SNIP]
> apt-get install xen-qemu-dm-4.0
>
> -- Adi
>

Yes, this package has fixes for HVM on Debian Squeeze


description    Packaging of the Xen device model (HVM support)

owner    Thomas Goirand

last change    Tue, 21 Dec 2010 05:38:10 +0000

URL    git://git.debian.org/users/zigo/xen-qemu-dm-4.0.git

    git+ssh://git.debian.org/git/users/zigo/xen-qemu-dm-4.0.git

    https://alioth.debian.org/anonscm/git/users/zigo/xen-qemu-dm-4.0.git


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> On Wed, 16 Feb 2011 18:41:59 -0200 <lucianobarreto@gmail.com> wrote:
>
> I''ll try it again. Just a strange question, when i cat
/proc/cpuinfo i
> cant see informations about vmx on Debian, but it shows on Centos and
> Ubuntu.. i cant understand...
>
I believe this is to be expect WHEN you are booted in your dom0 with the use of
the hypervisor.

>From my system:

processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 30
model name    : Intel(R) Core(TM) i7 CPU         860  @ 2.80GHz
stepping    : 5
cpu MHz        : 2800.162
cache size    : 8192 KB
fpu        : yes
fpu_exception    : yes
cpuid level    : 11
wp        : yes
flags        : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nonstop_tsc
aperfmperf pni est ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm ida
bogomips    : 5600.32
clflush size    : 64
cache_alignment    : 64
address sizes    : 36 bits physical, 48 bits virtual
power management:


but notice from the xm dmesg output:

(XEN) Xen version 4.0.1 (Debian 4.0.1-2) (waldi@debian.org) (gcc version 4.4.5 (
Debian 4.4.5-10) ) Wed Jan 12 14:04:06 UTC 2011
(XEN) Bootloader: GRUB 1.98+20100804-14
(XEN) Command line: placeholder dom0_mem=2G dom0_max_vcpus=4

...

(XEN) Detected 2800.162 MHz processor.
(XEN) Initing memory sharing.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Intel VT-d Snoop Control supported.
(XEN) Intel VT-d DMA Passthrough not supported.
(XEN) Intel VT-d Queued Invalidation supported.
(XEN) Intel VT-d Interrupt Remapping not supported.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Total of 8 processors activated.


Hope that clears it up, the Xen hypervisor reserves vmx for itself.


-M
 		 	   		  
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