Re: [Xen-API] Guest Utilities - HVM vs PV mode

[Alexandre Kouznetsov <alk@xxxxxxxxxx>]

Hello, George.

El 15/01/13 01:38, George Shuklin escribió:
> xe vm-list uuid=... params=HVM-boot-policy, if not empty, HVM mode, if
> empty - PV mode.
Well, that seems a good criteria, but there is something still unclear 
to me.
I have deployed a Debian 6.0 64-bit machine on a XCP 1.6. Judging by 
HVM-boot-policy parameter (empty) and PV-bootloader (pygrub) it's 
running in PV mode. It boots Squeeze's default kernel, 2.6.32-5-amd64 
(not 2.6.32-5-xen-amd64).
But, my VM's dmesg output mentions Xen, including this specific reference:
[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.1.3 (preserve-AD)

How so?
Does Squeeze's linux-image-2.6.32-5-amd64 already includes Xen PV 
support? I believed it was included since v3.0.
I'm quite sure it's the same stock kernel image, I has the same MD5 hash 
as a regular Debian 6.0 64-bit installation I have around.
(BTW, didn't knew pygrub already worked with Grub2 config file, 
apparently it does!)
I must say, I'm quite happy with this setup, so there is no need to do 
anything else to convert my VM to PV mode, but I don't understand it.
Thank you.

--
Alexandre Kouznetsov


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