Thank you a lot for your attention .
I got the dom0 kernel source code from xensource.com, and I don't know whether
it's the same with pv_ops dom0 source tree . I'm wondering that how can
people use VHD devices under the new blktap2 if he use SUSE11 as dom0 , whose
kernel is 2.6.27 . In my mind, the new blktap2 module is developed matching
with kernel 2.6.18 . For example, blktap2 includes lots header files from
linux-2.6.18. Is this right ?
-----邮件原件-----
发件人: Pasi Kärkkäinen [mailto:pasik@xxxxxx]
发送时间: 2009年12月21日 17:17
收件人: fanliang
抄送: xen-devel@xxxxxxxxxxxxxxxxxxx; Jeremy Fitzhardinge
主题: Re: [Xen-devel] some questions about the new blktap2 module
On Mon, Dec 21, 2009 at 05:00:56PM +0800, fanliang wrote:
> Hi, all:
> I have some questions when read the code of the new blktap2 module.
> One is in function tapdisk_vbd_map_device ( ) . In this function , the
> userspace proccess tapdisk2 used ioctl like this :
> ioctl(ring->fd, BLKTAP_IOCTL_SETMODE, BLKTAP_MODE_INTERPOSE);
> From the context , we can get that "ring->fd " is the file handle of the
> ring-device [/dev/xen/blktap-2/blktap[minor] ] . In the blktap2 driver
> codes , I find that blktap_ring_ioctl() didn't implement the
> BLKTAP_IOCTL_SETMODE ioctl case . I used xen-unstable code package and
> linux-2.6.18-xen-3.4.2 code package.
> So my question is :
> 1, Is blktap2 code in xen-unstable not match with linux-2.6.18-xen-3.4.2
> ?
> 2, Any body used VHD disk with blktap2 ?
>
Hello,
Afaik blktap2 is not yet ready/working on pv_ops dom0 tree (xen-unstable uses
pv_ops dom0).
Jeremy can possibly comment more about the status of blktap2.
-- Pasi
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