02.05.2010 14:04, Avi Kivity wrote:
On 05/01/2010 12:40 AM, Michael Tokarev wrote:
01.05.2010 00:59, Michael Tokarev wrote:
Apparently with current kvm stable (0.12.3)
Windows NT 4.0 does not install anymore.
With default -cpu, it boots, displays the
"Inspecting your hardware configuration"
message and BSODs with "STOP: 0x0000003E"
error as shown here:
http://www.corpit.ru/mjt/winnt4_1.gif
With -cpu pentium the situation is a
>bit< better, it displays:
Microsoft (R) Windows NT (TM) Version 4.0 (Build 1381).
1 System Processor [512 MB Memory] Multiprocessor Kernel
and stops there with 100% CPU usage, never
going any further.
Kvm command line is trivial, with -hda
and -cdrom and -vga std (with -vga cirrus
it displays garbage here). The only parameters
of interest are:
-no-acpi - this one has no visible effect
-cpu pentium - tried that with some change
but no success anyway.
I were able to boot and install it just fine
using -cpu host (without -no-acpi or any
other option).
Microsoft(R) Windows NT(R) version 4.0 (Build 1381: Service Pack 1)
(C) 1981-1996
where my host cpu is Athlon X2-64 4850e (2 cores).
I tried a few other -cpu values, but no luck - it
either BSODs with 0x3E error, or stops after first
kernel message.
Interesting. Can you try -cpu host with the family/model/vendor etc used
by -cpu qemu64?
Here we go.
cpuinfo from kvm default cpu:
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.12.3
stepping : 3
cpu MHz : 2500.000
cache size : 512 KB
fpu : yes
fpu_exception : yes
cpuid level : 4
wp : yes
flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 syscall nx lm up pni cx16 hypervisor lahf_lm
bogomips : 5002.33
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
cpuinfo from host:
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 107
model name : AMD Athlon(tm) Dual Core Processor 4850e
stepping : 2
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic
cr8_legacy 3dnowprefetch lbrv
bogomips : 1003.48
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc 100mhzsteps
running with -cpu host,vendor=AuthenticAMD,model=2,family=6 :
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 2
model name : AMD Athlon(tm) Dual Core Processor 4850e
stepping : 2
cpu MHz : 2500.000
cache size : 512 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm up pni cx16
hypervisor lahf_lm cmp_legacy cr8_legacy 3dnowprefetch
bogomips : 4401.33
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
WindowsNT works, just like with -cpu host.
There are a few more data points.
After installing, winNT does not boot without -cpu host,
with exactly the same diagnostics as before (0x0000003E).
But: After installing service pack 6, it boots just fine
with any -cpu, including the default qemu64.
With qemu-kvm-0.11.4 it all just works without any
additional options.
I asked the other person with this issue (see debian bug,
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=575439 )
to try -cpu host, but for him it didn't help. I suspect
(but don't know for sure) he's running it on Intel CPU.
Thanks!
/mjt
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