Xen users - Oct 2006 - hvm_debug option in Xen works ?

I edited the line as "kernel /xen-3.0.gz hvm_debug=1"

 

I did not *see* any HVM_DBG_LOG messages .I was of course looking for
the ones in "vmx_do_msr_read" function in vmx.c

 

I issued "dmesg" and "xm dmesg" in both guest and host OS.
Any ideas
why this is not working?

 

 

Regards

Shobha Ranganathan

"The significant challenges we face cannot be resolved at the same level
of thinking we were at when we created them." Albert Einstein

 



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________________________________

	From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ranganathan,
Shobha
	Sent: 31 October 2006 17:45
	To: xen-users@lists.xensource.com
	Subject: [Xen-users] hvm_debug option in Xen works ?
	
	

	I edited the line as "kernel /xen-3.0.gz hvm_debug=1"

	 

	I did not *see* any HVM_DBG_LOG messages .I was of course
looking for the ones in "vmx_do_msr_read" function in vmx.c

	 

	I issued "dmesg" and "xm dmesg" in both guest and host OS.
Any
ideas  why this is not working? 

	 

	 

Setting hvm_debug=2 may work better, as the value 1 will only print
debug messages at DBG_LEVEL_0 (1 << 0). Or you could set it to 3, to get
both the level 0 and level 1 debug output. Or set it to "15" to get
"all
numbered levels". 

 

xm dmesg should show these prints, but of course, it DOES assume that
you set the right bit in the level. [Level is a bit weird usage, if the
actual selection criteria is a bitmask, but never mind...]

 

--

Mats 

	 

	 

	Regards

	Shobha Ranganathan

	"The significant challenges we face cannot be resolved at the
same level of thinking we were at when we created them." Albert Einstein

	 



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Thanks for your response

I built xen with

 

Make world XEN_TARGET_X86_PAE=y  debug =y (do I have this correct ??)

Make install

Depmod

Mkinitrd.....

 

I also edited the grub line as  "kernel /xen-3.0.gz hvm_debug=15" (I
changed this after your email)

 

No I do not see any messages....

 

 

	 

	
________________________________


	From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ranganathan,
Shobha
	Sent: 31 October 2006 17:45
	To: xen-users@lists.xensource.com
	Subject: [Xen-users] hvm_debug option in Xen works ?

	I edited the line as "kernel /xen-3.0.gz hvm_debug=1"

	 

	I did not *see* any HVM_DBG_LOG messages .I was of course
looking for the ones in "vmx_do_msr_read" function in vmx.c

	 

	I issued "dmesg" and "xm dmesg" in both guest and host OS.
Any
ideas  why this is not working? 

	 

	 

Setting hvm_debug=2 may work better, as the value 1 will only print
debug messages at DBG_LEVEL_0 (1 << 0). Or you could set it to 3, to get
both the level 0 and level 1 debug output. Or set it to "15" to get
"all
numbered levels". 

 

xm dmesg should show these prints, but of course, it DOES assume that
you set the right bit in the level. [Level is a bit weird usage, if the
actual selection criteria is a bitmask, but never mind...]

 

--

Mats 

	 

	 

	Regards

	Shobha Ranganathan

	"The significant challenges we face cannot be resolved at the
same level of thinking we were at when we created them." Albert Einstein

	 



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Xen-users mailing list
Xen-users@lists.xensource.com
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