Re: [PATCH v2 00/22] Introduce HVM without dm and new boot ABI

[Yang Hongyang <yanghy@cn.fujitsu.com>]

Hi Roger,

   This seems to be a PVH guest, but IIRC a PVH guest should explicitly
specify 'pvh' in the config, maybe I'm wrong or did I miss some background?
Are there any meterial about this?

On 07/01/2015 10:45 PM, Roger Pau Monne wrote:
> This series is split in the following order:
>
>   - Patches from 1 to 10 switch HVM domain contruction to use the xc_dom_*
>     family of functions, like they are used to build PV domains.
>   - Patches from 11 to 22 introduce the creation of HVM domains without
>     a device model, which is replaced by directly loading a kernel like it's
>     done for PV guests. A new boot ABI based on the discussion in the thread
>     "RFC: making the PVH 64bit ABI as stable" is also introduced.
>
> This series has been successfully tested on the following hardware:
>
>   - Intel Xeon W3550.
>   - AMD Opteron 4184.
>
> With both hap=0 and hap=1 in the configuration file. I've been able to boot
> a SMP guest in this mode with a virtual hard drive and a virtual network
> card, all working fine AFAICT.
>
> For this round only maintainers of the specific code being modified have
> been Cced on the patches.
>
> The series can also be found in the following git repo:
>
> git://xenbits.xen.org/people/royger/xen.git branch hvm_without_dm_v2
>
> And for the FreeBSD part:
>
> git://xenbits.xen.org/people/royger/freebsd.git branch new_entry_point_v2
>
> In case someone wants to give it a try, I've uploaded a FreeBSD kernel that
> should work when booted into this mode:
>
> https://people.freebsd.org/~royger/kernel_no_dm
>
> The config file that I've used is:
>
> <config>
> kernel="/path/to/kernel_no_dm"
>
> builder="hvm"
> device_model_version="none"
>
> memory=128
> vcpus=2
> name = "freebsd"
> </config>
>
> Of course if you have a FreeBSD disk already setup it can also be added to
> the configuration file, and the following line can be used to point FreeBSD
> to the disk:
>
> extra="vfs.root.mountfrom=ufs:/dev/ufsid/<disk_id>"
>
> Thanks, Roger.
>
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>

-- 
Thanks,
Yang.