VT-X disabled by firmware update?
- Thread starter elektroholunder
- Start date
tobyg said:
on my core duo mini, with MM11.0055.B02, SN YM608R0VU36, vtx-check gives me "VT-x is supported (reported by CPUID) and can be used", but Parallels Workstation->About Parallels Workstation gives me "Virtualization mode: Software mode 0"
Of course, I can't get it to boot from a real CD or a CD image, so it's all kind of meaningless to me at this point anyway...
Using build 1658.24
Peace
So PVm states
License information:
Status:
---
Product ID:
00005-00013361-0004
Validity period:
April 6, 2006 - May 6, 2006
Primary OS(es):
Mac OS X
Terminal Services:
no
Virtualization mode: Intel VT-x
Remote client off
session:
(But Had to start the Guest OS to Get This !!!)
And About this mac..
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 1.25 GB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM608G~~~~~
SMC Version: 1.3f2
If I use BootCamp/XP-Native i was using a tool from Intel (http://www.intel.com/support/processors/tools/piu/sb/CS-014921.htm
and it reports..
Intel(R) Processor Identification Utility
Version: 2.8.20060328
Time Stamp: 2006/04/09 01:10:54
Number of processors in system: 1
Current processor: #1
Processor Name: Intel(R) Core(TM) Duo CPU T2300 @ 1.66GHz
Type: 0
Family: 6
Model: E
Stepping: 8
Revision: 39
L1 Instruction Cache: 32 KB
L1 Data Cache: 32 KB
L2 Cache: 2 MB
Packaging: µFCPGA/µFCBGA
EIST: Yes
MMX(TM): Yes
SIMD: Yes
SIMD2: Yes
SIMD3: Yes
Enhanced Halt State: No
Execute Disable Bit: Yes
Hyper-Threading Technology: No
Intel(R) Extended Memory 64 Technology: No
Intel(R) Virtualization Technology: Yes
Expected Processor Frequency: 1.66 GHz
Reported Processor Frequency: 1.66 GHz
Expected System Bus Frequency: 667 MHz
Reported System Bus Frequency: 667 MHz
*************************************************************
so where do we go from here ?
License information:
Status:
---
Product ID:
00005-00013361-0004
Validity period:
April 6, 2006 - May 6, 2006
Primary OS(es):
Mac OS X
Terminal Services:
no
Virtualization mode: Intel VT-x
Remote client off
session:
(But Had to start the Guest OS to Get This !!!)
And About this mac..
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 1.25 GB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM608G~~~~~
SMC Version: 1.3f2
If I use BootCamp/XP-Native i was using a tool from Intel (http://www.intel.com/support/processors/tools/piu/sb/CS-014921.htm
and it reports..
Intel(R) Processor Identification Utility
Version: 2.8.20060328
Time Stamp: 2006/04/09 01:10:54
Number of processors in system: 1
Current processor: #1
Processor Name: Intel(R) Core(TM) Duo CPU T2300 @ 1.66GHz
Type: 0
Family: 6
Model: E
Stepping: 8
Revision: 39
L1 Instruction Cache: 32 KB
L1 Data Cache: 32 KB
L2 Cache: 2 MB
Packaging: µFCPGA/µFCBGA
EIST: Yes
MMX(TM): Yes
SIMD: Yes
SIMD2: Yes
SIMD3: Yes
Enhanced Halt State: No
Execute Disable Bit: Yes
Hyper-Threading Technology: No
Intel(R) Extended Memory 64 Technology: No
Intel(R) Virtualization Technology: Yes
Expected Processor Frequency: 1.66 GHz
Reported Processor Frequency: 1.66 GHz
Expected System Bus Frequency: 667 MHz
Reported System Bus Frequency: 667 MHz
*************************************************************
so where do we go from here ?
Last edited:
VT-x and Core Duo Mac Minis
Hi,
When I tried Beta 1 of Parallels Workstation on my Core Duo Mac Mini yesterday, I was getting that error message stating that the CPU supports VT-x but that it has been disabled in the system BIOS.
Today I downloaded Beta 2 (build 1658.30 8-Apr-2006) and now I no longer get the error message and the VT-x mode seems to be working.
In the about box I see this:
Virtualization mode: Intel VT-x
And your vtx-check kext gives me this:
VT-x is supported (reported by CPUID) and can be used
Here are the details of my system:
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 512 MB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM608KNPU36
SMC Version: 1.3f2
Thanks.
Hi,
When I tried Beta 1 of Parallels Workstation on my Core Duo Mac Mini yesterday, I was getting that error message stating that the CPU supports VT-x but that it has been disabled in the system BIOS.
Today I downloaded Beta 2 (build 1658.30 8-Apr-2006) and now I no longer get the error message and the VT-x mode seems to be working.
In the about box I see this:
Virtualization mode: Intel VT-x
And your vtx-check kext gives me this:
VT-x is supported (reported by CPUID) and can be used
Here are the details of my system:
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 512 MB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM608KNPU36
SMC Version: 1.3f2
Thanks.
Scott Willsey
Hunter
It's an update. Just download the dmg, run the package installer, and have fun.
Add another to the not working...
What is weird, is that the first time I ran 2.1 beta2, it didn't show that warning that VT wasn't enabled. But then it crashed (hard, got a nice gray screen informing me to reboot) and after that it gave me the error message each time I wanted to use it.
Anyway, I ran the little test program and it says that it's not enabled, so you can add this to your list
Confirmed NOT working:
- Mac mini (Core Duo) (firmware: MM11.004B.B00, serial: YM609081U39)
- Mac mini (Core Duo) (firmware: MM11.0055.B02, serial: YM609081U39)
What is weird, is that the first time I ran 2.1 beta2, it didn't show that warning that VT wasn't enabled. But then it crashed (hard, got a nice gray screen informing me to reboot) and after that it gave me the error message each time I wanted to use it.
Anyway, I ran the little test program and it says that it's not enabled, so you can add this to your list
Confirmed NOT working:
- Mac mini (Core Duo) (firmware: MM11.004B.B00, serial: YM609081U39)
- Mac mini (Core Duo) (firmware: MM11.0055.B02, serial: YM609081U39)
VT-x
Hi:
Installed the beta yesterday, 2.1.1658.24 April 4
Also my mini is:
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM60849AU36
SMC Version: 1.3f2
Before I started the download for Parallels, I did 10.4.6 update and new Firmware BIOS update from apple.
All day yesterday, beta was working but got VT-x is disabled.
This morning did a shutdown by mistake with Parallels running, First startup gave me a gray screen and second startup booted fine, now VT-x is working fine.
Very strange behaviour, but happy that its working ok.
I notice missing features and some minor annoyance bugs, but overall I love it. Thanks very much, the forum is a wealth of info, thanks again.
There is a pre-order website, $39, I just ordered! Now want to buy a new imac, ha!
Alf
Hi:
Installed the beta yesterday, 2.1.1658.24 April 4
Also my mini is:
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM60849AU36
SMC Version: 1.3f2
Before I started the download for Parallels, I did 10.4.6 update and new Firmware BIOS update from apple.
All day yesterday, beta was working but got VT-x is disabled.
This morning did a shutdown by mistake with Parallels running, First startup gave me a gray screen and second startup booted fine, now VT-x is working fine.
Very strange behaviour, but happy that its working ok.
I notice missing features and some minor annoyance bugs, but overall I love it. Thanks very much, the forum is a wealth of info, thanks again.
There is a pre-order website, $39, I just ordered! Now want to buy a new imac, ha!
Alf
whomikejones
Bit poster
Not working here, FYI:
Serial: YM608HV8U36
Boot ROM: MM11.0055.B02
Serial: YM608HV8U36
Boot ROM: MM11.0055.B02
Weirdness
This is *very* odd. Yesterday, when I ran vtx-check, it stated that vtx was disabled. Now, for some reason, it's enabled???
The only difference that I can see in dmesg is this:
Parallels Workstation Hypervisor started.
Parallels Workstation VMM Main driver started.
System Sleep
Enabling XMM register save/restore and SSE/SSE2 opcodes
Started CPU 01
System Wake
USB caused wake event (EHCI)
AppleYukon - en0 link active, 1000-Mbit, full duplex, symmetric flow control enabled
VT-x is supported (reported by CPUID) and can be used
Does making the mini sleep and then wake up again enable VT-x? I'm installing Ubuntu right now and it seems to be working fine. Parallels reports that it is using virtualization too.
--pojo
This is *very* odd. Yesterday, when I ran vtx-check, it stated that vtx was disabled. Now, for some reason, it's enabled???
The only difference that I can see in dmesg is this:
Parallels Workstation Hypervisor started.
Parallels Workstation VMM Main driver started.
System Sleep
Enabling XMM register save/restore and SSE/SSE2 opcodes
Started CPU 01
System Wake
USB caused wake event (EHCI)
AppleYukon - en0 link active, 1000-Mbit, full duplex, symmetric flow control enabled
VT-x is supported (reported by CPUID) and can be used
Does making the mini sleep and then wake up again enable VT-x? I'm installing Ubuntu right now and it seems to be working fine. Parallels reports that it is using virtualization too.
--pojo
daveschroeder
Member
Ok, this is really strange...VT is now enabled on a Mac mini it *wasn't* previously enabled on, and this was without doing any sleep tricks. In fact, I now can't get it to report that it's *disabled*. I can't see any rhyme or reason as to why this could be happening...
wierd
Just found this thread.
Did the firmware update before trying for the first time yesterday to run parellels on my mini dual core. At first I was locked. Then I went to sleep for the first time and afterwords, I now have
VT-x is supported (reported by CPUID) and can be used.
??
Just found this thread.
Did the firmware update before trying for the first time yesterday to run parellels on my mini dual core. At first I was locked. Then I went to sleep for the first time and afterwords, I now have
VT-x is supported (reported by CPUID) and can be used.
??
ctrl+alt+del
Bit poster
well, on my Mini, i installed directly beta 2. The Mini is brand new, and the Firmware Updater says it does not need any update.
Anyway, XP runs fine in Parallels, and the VT was enabled (well, i guess it was as Parallels did not say anything). Then i had two computer hangs in a row trying to insert a CD in the drive while running the VM (the second one beeing a short black screen followed by a direct restart.
Since then, i have this VT disabled message showing (and vtx-check tells me it's indeed disabled).
ROM : MM11.004B.B00
Serial : YM6092U4U36
Version SMC : 1.3f2
Anyway, XP runs fine in Parallels, and the VT was enabled (well, i guess it was as Parallels did not say anything). Then i had two computer hangs in a row trying to insert a CD in the drive while running the VM (the second one beeing a short black screen followed by a direct restart.
Since then, i have this VT disabled message showing (and vtx-check tells me it's indeed disabled).
ROM : MM11.004B.B00
Serial : YM6092U4U36
Version SMC : 1.3f2
Todd Woodward
Bit poster
Apr 11 11:40:41 administrators-computer kernel[0]: VT-x is supported (reported by CPUID), but locked in MSR and can't be used
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 512 MB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM6098B3U36
Machine Name: Mac mini
Machine Model: Macmini1,1
CPU Type: Intel Core Duo
Number Of Cores: 2
CPU Speed: 1.66 GHz
L2 Cache (shared): 2 MB
Memory: 512 MB
Bus Speed: 667 MHz
Boot ROM Version: MM11.0055.B02
Serial Number: YM6098B3U36
Well I can also account to the strange things going on.
Mac MINI core duo 1.66
ym6133p2u36
10.4.6
latest firmware & beta 2
(all DL yesterday - brand new mini)
When I first installed Parallels I got the "not supported" notice but went ahead and installed anyway - then found & read this thread.
I let my mac go to sleep & woke it up. Still got the "not supported" warning on startup but noticed that it was using VT-x when windows got up & running. then it became very unstable & crashed my mini (total reset - no kernel panic or any thing) I gave up & went to bed (4am :-D - I left the mac running).
When i woke it up this morning & tried it - no "disabled" warning - booted straight into windows & is running stable.
Hope this helps (although i'm sure it wont)
Matt
PS with the sleep thing - I first tried putting it to sleep with the power button & this didn't seem to make any difference, it wasnt until I let it go to sleep by itself that things started to happen.
Mac MINI core duo 1.66
ym6133p2u36
10.4.6
latest firmware & beta 2
(all DL yesterday - brand new mini)
When I first installed Parallels I got the "not supported" notice but went ahead and installed anyway - then found & read this thread.
I let my mac go to sleep & woke it up. Still got the "not supported" warning on startup but noticed that it was using VT-x when windows got up & running. then it became very unstable & crashed my mini (total reset - no kernel panic or any thing) I gave up & went to bed (4am :-D - I left the mac running).
When i woke it up this morning & tried it - no "disabled" warning - booted straight into windows & is running stable.
Hope this helps (although i'm sure it wont)
Matt
PS with the sleep thing - I first tried putting it to sleep with the power button & this didn't seem to make any difference, it wasnt until I let it go to sleep by itself that things started to happen.