yoava333
Contributor
Contributor

debugCtl in vmware player

Hi,

I'm playing around with the debug functions of the x86 processor and specifically trying to work with debugCtl functionality (http://support.amd.com/us/Processor_TechDocs/24593_APM_v2.pdf, page 353).

I tried to activate this feature by writing (in kernel mode) 1 to the msr number 1d9 but when reading the value back I get a 0.

after a few hours of debugging my code I tried it on my physical computer and it worked.

I wanted to know whether I need to change the configuration to enable this feature or its not supported, and if it's supported in another in another vmware product.

Thanks

Yoav

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2 Replies
Samquejo
Commander
Commander

Hi

Try to hideit's vm status.

First

monitor_control.virtual_rdtsc = "false"

monitor_control.restrict_backdoor = "true"

Second

isolation.tools.getPtrLocation.disable = "true"

isolation.tools.setPtrLocation.disable = "true"

isolation.tools.setVersion.disable = "true"

isolation.tools.getVersion.disable = "true"

Third

monitor_control.disable_directexec = "true"

Si esta u otra respuesta es util, por favor marca su correspondiente notificador. Gracias/Regards
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yoava333
Contributor
Contributor

I searched around and found that it's not supported

http://communities.vmware.com/message/1508325#1508325

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