Re: [Xen-users] PVHVM example for xen 4.3.1

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Dec 25, 2013 at 06:56:14PM -0800, johnnadre wrote:
> 
> Hello,
> 
> 
> I'm looking for an example configuration for a PVHVM domU that works with 
> 4.3.1. The one at http://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers causes 
> 3 warnings and some errors:
> 
> WARNING: ignoring "kernel" directive for HVM guest. Use "firmware_override" 
> instead if you really want a non-default firmware

You have kernel= option in your config file which is not necessary.

> WARNING: ignoring device_model directive.

You have device_model= option in your config file which is not
necessary.

> WARNING: Use "device_model_override" instead if you really want a non-default 
> device_model
> xc: info: VIRTUAL MEMORY ARRANGEMENT:
>   Loader:        0000000000100000->000000000019ed04
>   Modules:       0000000000000000->0000000000000000
>   TOTAL:         0000000000000000->000000000f800000
>   ENTRY ADDRESS: 0000000000100000
> xc: info: PHYSICAL MEMORY ALLOCATION:
>   4KB PAGES: 0x0000000000000200
>   2MB PAGES: 0x000000000000007b
>   1GB PAGES: 0x0000000000000000
> libxl: error: libxl_dm.c:1275:device_model_spawn_outcome: domain 2 device 
> model: spawn failed (rc=-3)
> libxl: error: libxl_create.c:1075:domcreate_devmodel_started: device model 
> did not start: -3
> libxl: error: libxl_dm.c:1306:libxl__destroy_device_model: Device Model 
> already exited
> 
> If I follow the suggestions in the warning messages and specify 
> firmware_override and device_model_override like so:
> 
> firmware_override = "/usr/lib64/xen/boot/hvmloader"
> device_model_override = '/usr/lib64/xen/bin/qemu-dm'
> 

You don't need these lines.

> 
> it only removes some of the warnings but not the errors:
> 
> WARNING: device model override given without specific DM version
> same errors as above
> 
> 
> Does anybody have a config that works or any idea what's wrong with my config?
> 
> One more noteworthy thing:
> 
> # cat /var/log/xen/qemu-dm-auth.log
> /usr/lib64/xen/bin/qemu-dm: invalid option -- '-xen-domid'
> 

You overrided device_model with qemu-dm, but xl passes -xen-domid
which only works for qemu upstream.

If you want to use qemu traditional, you should use
device_model_version="qemu-xen-traditional" then xl will arrange
everything for you.

Wei.

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