Hi, all
I am trying to use nested virtualization setup and experiencing L2 guest
(Windows) hanging during boot.
I have seen some threads about it, but did not manage to make sense of how
can I work around it.
Would appreciate any guidance for a solution or workaround.
Thanks,
Ariel
Some details are attached.
*L0 logs look like this:*
[117402.803802] kvm [11772]: vcpu0 unhandled rdmsr: 0x345
[117402.823629] kvm_set_msr_common: 54 callbacks suppressed
[117402.823631] kvm [11772]: vcpu0 unhandled wrmsr: 0x680 data 0
[117402.833796] kvm [11772]: vcpu0 unhandled wrmsr: 0x6c0 data 0
[117402.843967] kvm [11772]: vcpu0 unhandled wrmsr: 0x681 data 0
[117402.854106] kvm [11772]: vcpu0 unhandled wrmsr: 0x6c1 data 0
[117402.864272] kvm [11772]: vcpu0 unhandled wrmsr: 0x682 data 0
[117402.874429] kvm [11772]: vcpu0 unhandled wrmsr: 0x6c2 data 0
[117402.884613] kvm [11772]: vcpu0 unhandled wrmsr: 0x683 data 0
[117402.893675] kvm [11772]: vcpu0 unhandled wrmsr: 0x6c3 data 0
[117402.902550] kvm [11772]: vcpu0 unhandled wrmsr: 0x684 data 0
[117402.911442] kvm [11772]: vcpu0 unhandled wrmsr: 0x6c4 data 0
At the time of the hanging this line is added:
nested_vmx_run: VMCS MSR_{LOAD,STORE} unsupported
*L1 logs look like this:*
Jan 9 11:34:43 hpvm---2 kernel: [ 217.975781] kvm [2106]: vcpu0 disabled
perfctr wrmsr: 0xc1 data 0x
*The setup details are as follows:*
*L0 - Ubuntu 14.04, kernel 3.13.0-43:*
*CPUID*
Vendor ID: GenuineIntel; CPUID level 13
Intel-specific functions:
Version 000206d7:
Type 0 - Original OEM
Family 6 - Pentium Pro
Model 13 -
Stepping 7
Reserved 8
Extended brand string:Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz
CLFLUSH instruction cache line size: 8
Initial APIC ID: 39
Hyper threading siblings: 32
Feature flags bfebfbff:
FPUFloating Point Unit
VMEVirtual 8086 Mode Enhancements
DE Debugging Extensions
PSEPage Size Extensions
TSCTime Stamp Counter
MSRModel Specific Registers
PAEPhysical Address Extension
MCEMachine Check Exception
CX8COMPXCHG8B Instruction
APIC On-chip Advanced Programmable Interrupt Controller present and
enabled
SEPFast System Call
MTRR Memory Type Range Registers
PGEPTE Global Flag
MCAMachine Check Architecture
CMOV Conditional Move and Compare Instructions
FGPAT Page Attribute Table
PSE-36 36-bit Page Size Extension
CLFSH CFLUSH instruction
DS Debug store
ACPI Thermal Monitor and Clock Ctrl
MMXMMX instruction set
FXSR Fast FP/MMX Streaming SIMD Extensions save/restore
SSEStreaming SIMD Extensions instruction set
SSE2 SSE2 extensions
SS Self Snoop
HT Hyper Threading
TM Thermal monitor
31 reserved
TLB and cache info:
5a: unknown TLB/cache descriptor
03: Data TLB: 4KB pages, 4-way set assoc, 64 entries
76: unknown TLB/cache descriptor
ff: unknown TLB/cache descriptor
b2: unknown TLB/cache descriptor
f0: unknown TLB/cache descriptor
ca: unknown TLB/cache descriptor
Processor serial: 0002-06D7----
*L1 - Ubuntu 14.04, kernel 3.13.0-43*
*CPUID*
CPU 0:
vendor_id = GenuineIntel
version information (1/eax):
processor type = primary processor (0)
family = Intel Pentium Pro/II/III/Celeron/Core/Core 2/Atom,
AMD Athlon/Duron, Cyrix M2, VIA C3 (6)
model = 0xa (10)
stepping id = 0x1 (1)
extended family = 0x0 (0)
extended model = 0x2 (2)
(simple synth) = Intel Core i5-2000 / Core i7-2000 / Mobile Core
i3-2000 / Mobile Core i5-2000 / Mobile Core i7-2000 / Pentium
G500/G600/G800 / Celeron G400/G500/700/800/B800 / Xeon E3-1200 (Sandy
Bridge), 32nm
miscellaneous (1/ebx):
process local APIC physical ID = 0x0 (0)
cpu count = 0x0 (0)
CLFLUSH line size = 0x8 (8)
brand index= 0x0 (0)
brand id = 0x00 (0): unknown
feature information (1/edx):
x87 FPU on chip= true
virtual-8086 mode enhancement = true
debugging extensions = true
page size extensions = true
time stamp counter = true
RDMSR and WRMSR support= true
physical address extensions= true
machine check exception= true
CMPXCHG8B inst.= true
APIC on chip = true
SYSENTER and SYSEXIT = true
memory type range registers= true
PTE global bit = true
machine check architecture = true
conditional move/compare instruction = true
page attribute table = true
page size extension= true
processor serial number= false
CLFLUSH instruction= true
debug store= false
