[Xen-users] HVM ignoring vcpus parameter

[Balazs Szalai <crowdatcrowd@xxxxxxxxx>]

Hi,
I am using Xen 4 under DebianÂSqueeze. I want to use Windows 2008 x86
with HVM, but only one vcpu allocated when vm started.
After increasing vcpus number (vcpus = '4') in cfg, at start ignored
that parameter, xm list VCPUs show only 1.
Why does not able to increase the vcpus? Any idea?:)

p.s: if using pvm linux, then the vcpus parameter is ok, increased
successfully when I set it.


xend.log:

[2011-07-29 16:56:49 27043] DEBUG (XendDomainInfo:101)
XendDomainInfo.create(['vm', ['name', 'Windows2008standard'],
['memory', '4096'
], ['shadow_memory', 8], ['on_xend_start', 'ignore'], ['on_xend_stop',
'ignore'], ['vcpus', 1], ['oos', 1], ['image', ['hvm', ['kernel
', '/usr/lib/xen-default/boot/hvmloader'], ['videoram', 4], ['serial',
'pty'], ['acpi', 1], ['apic', 1],

xm info:
# xm info

host                   : xxxx
release                : 2.6.32-5-xen-686
version                : #1 SMP Mon Jun 13 09:07:50 UTC 2011
machine                : i686
nr_cpus                : 16
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2266
hw_caps                :
bfebfbff:28100000:00000000:00001b40:009ce3bd:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 8180
free_memory            : 22
node_to_cpu            : node0:0-15
node_to_memory         : node0:22
node_to_dma32_mem      : node0:22
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .1
xen_caps               : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
xen_commandline        : placeholder
cc_compiler            : gcc version 4.4.5 (Debian 4.4.5-10)
cc_compile_by          : waldi
cc_compile_domain      : debian.org
cc_compile_date        : Wed Jan 12 15:04:50 UTC 2011
xend_config_format     : 4

xm dmesg:

....

(XEN) Processor #0 7:10 APIC version 21
(XEN) Processor #2 7:10 APIC version 21
(XEN) Processor #4 7:10 APIC version 21
(XEN) Processor #6 7:10 APIC version 21
(XEN) Processor #16 7:10 APIC version 21
(XEN) Processor #18 7:10 APIC version 21
(XEN) Processor #20 7:10 APIC version 21
(XEN) Processor #22 7:10 APIC version 21
(XEN) Processor #1 7:10 APIC version 21
(XEN) Processor #3 7:10 APIC version 21
(XEN) Processor #5 7:10 APIC version 21
(XEN) Processor #7 7:10 APIC version 21
(XEN) Processor #17 7:10 APIC version 21
(XEN) Processor #19 7:10 APIC version 21
(XEN) Processor #21 7:10 APIC version 21
(XEN) Processor #23 7:10 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 9, version 32, address 0xfec80000, GSI 24-47
(XEN) Enabling APIC mode:  Phys.  Using 2 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2266.786 MHz processor.
(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 supported.
(XEN) I/O virtualisation enabled


cpuinfo

processor       : 0-15
vendor_id       : GenuineIntel
cpu family      : 6
model           : 26
model name      : Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
stepping        : 5
cpu MHz         : 2266.786
cache size      : 8192 KB
physical id     : 1
siblings        : 2
core id         : 3
cpu cores       : 1
apicid          : 23
initial apicid  : 23
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu de tsc msr pae mce cx8 apic mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf
pni est ssse3 sse4_1 sse4_2 popcnt hypervisor
bogomips        : 4533.57
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

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