[Xen-devel] [PATCH] [IOEMU] Allow blktap to be able to be booted as systemvolume for PV-on-HVM(TAKE 3)

["Kasai Takanori" <kasai.takanori@xxxxxxxxxxxxxx>]

Hi All,

I sent the patch to make blktap work with PV-on-HVM.
I corrected the part that had been pointed out in the Xen community.

・All xvdN disk is looked like hdN.
・All tap disks are checked.(tap:aio, tap:sync, tap:vmdk, etc.)

We cannot use blktap for the volume of the system with PV-on-HVM
and are embarrassed.
Could you apply this patch? Or, please give the comment to me.

Signed-off-by: Takanori Kasai <kasai.takanori@xxxxxxxxxxxxxx>

Best Regards,

--
Takanori Kasai

----- Original Message ----- 
From: "Kasai Takanori" <kasai.takanori@xxxxxxxxxxxxxx>
To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Sent: Thursday, July 12, 2007 9:13 AM
Subject: [Xen-devel] [PATCH] Allow blktap to be able to be booted as 
systemvolume for PV-on-HVM(TAKE 2)

> Hi All,
>
> I sent the patch to make blktap work with PV-on-HVM.
> For system volume to boot hda or xvda,
> I corrected the patch.
>
> Signed-off-by: Takanori Kasai <kasai.takanori@xxxxxxxxxxxxxx>
>
> This patch made it possible to use either.
>
> disk = [ 'tap:aio:/xen/test/rhel5ga_full.img,hda,w' ]
> or
> disk = [ 'tap:aio:/xen/test/rhel5ga_full.img,xvda,w' ]
>
> It is assumed that hda is a volume of the system
> if both xvda and hda are specified.
>
> disk = [ 'file:/xen/test/rhel5ga_full.img,hda,w',
>         'tap:aio:/xen/test/drive2.img,xvda,w' ]
>
> Best Regards,
>
> --
> Takanori Kasai
>
>
> ----- Original Message ----- 
> From: "Kasai Takanori" <kasai.takanori@xxxxxxxxxxxxxx>
> To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Sent: Friday, July 06, 2007 7:50 PM
> Subject: [Xen-devel] [PATCH] Allow blktap to be able to be booted as
> systemvolume for PV-on-HVM
>
>
> > Hi All,
> >
> > We were testing the PV driver on the HVM domain.
> > When blktap was booting system volume, PV-on-HVM domain was not able to be
> > started.
> >
> > The configuration file is specified as follows.
> > disk = [ 'tap:aio:/xen/test/rhel5ga_full.img,hda,w' ]
> >
> > The error occurred by the initialization of system volume in qemu-dm.
> >
> > qemu: could not open hard disk image 'aio:/xen/test/rhel5ga_full.img'
> >
> > It is because "aio:" is added to the head of params in xenstore.
> > However, qemu-dm open device by params.
> >
> > This patch corrected the problem of params on the qemu-dm.
> >
> > Signed-off-by: Takanori Kasai <kasai.takanori@xxxxxxxxxxxxxx>
> > Signed-off-by: Tomonari Horikoshi <t.horikoshi@xxxxxxxxxxxxxx>
> > Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@xxxxxxxxxxxxxx>
> >
> > The execution result is as follows.
> >
> > # xm create -f rhel5ga_vti.conf
> > Using config file "./rhel5ga_vti.conf".
> > Started domain RHEL5GA-test2
> > # xm block-list RHEL5GA-test2
> > Vdev  BE handle state evt-ch ring-ref BE-path
> > 768    0    0     1      -1     -1    /local/domain/0/backend/tap/75/768
> > ...      <<= /* Waiting for booting process */
> > # xm block-list RHEL5GA-test2
> > Vdev  BE handle state evt-ch ring-ref BE-path
> > 768    0    0     4      7      8     /local/domain/0/backend/tap/75/768
> >
> > Best Regards,

Attachment: allow-blktap-system-volume-3.patch
Description: Binary data

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