* shadow page code
@ 2007-01-25 15:40 Ky Srinivasan
2007-01-25 15:51 ` Tim Deegan
2007-01-26 2:04 ` backend and frontend tgh
0 siblings, 2 replies; 5+ messages in thread
From: Ky Srinivasan @ 2007-01-25 15:40 UTC (permalink / raw)
To: xen-devel
APIs such as sh_invlpg and sh_update_cr3 take a pointer to the virtual cpu on which it needs to operate as an argument. However, it appears that the call can only operate on the currently executing vcpu.
Regards,
K. Y
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: shadow page code
2007-01-25 15:40 shadow page code Ky Srinivasan
@ 2007-01-25 15:51 ` Tim Deegan
2007-01-26 2:04 ` backend and frontend tgh
1 sibling, 0 replies; 5+ messages in thread
From: Tim Deegan @ 2007-01-25 15:51 UTC (permalink / raw)
To: Ky Srinivasan; +Cc: xen-devel
At 08:40 -0700 on 25 Jan (1169714440), Ky Srinivasan wrote:
> APIs such as sh_invlpg and sh_update_cr3 take a pointer to the virtual cpu on which it needs to operate as an argument. However, it appears that the call can only operate on the currently executing vcpu.
sh_update_cr3 can be run against another vcpu, e.g. in domain creation,
and in the HVM save/restore code.
sh_invlpg does indeed only ever run on 'current'.
Tim.
^ permalink raw reply [flat|nested] 5+ messages in thread
* backend and frontend
2007-01-25 15:40 shadow page code Ky Srinivasan
2007-01-25 15:51 ` Tim Deegan
@ 2007-01-26 2:04 ` tgh
2007-01-26 10:32 ` Ewan Mellor
1 sibling, 1 reply; 5+ messages in thread
From: tgh @ 2007-01-26 2:04 UTC (permalink / raw)
To: xen-devel
hi
I try to understand the blkback and blkfront codes,and I am puzzled
about the initialization for both blkback and frontend.
Does the blkback complete the initialization when the dom0 init ?and
when does the frontend in guestOS try to connet with the blkback in the
dom0? and how does the frontend do? how does the frontend register the
relative entryes in the xenstore in the dom0?
I am really puzzled ,could anyone help me?
Thanks in advance
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: backend and frontend
2007-01-26 2:04 ` backend and frontend tgh
@ 2007-01-26 10:32 ` Ewan Mellor
2007-01-27 12:21 ` tgh
0 siblings, 1 reply; 5+ messages in thread
From: Ewan Mellor @ 2007-01-26 10:32 UTC (permalink / raw)
To: tgh; +Cc: xen-devel
On Fri, Jan 26, 2007 at 10:04:15AM +0800, tgh wrote:
> hi
> I try to understand the blkback and blkfront codes,and I am puzzled
> about the initialization for both blkback and frontend.
> Does the blkback complete the initialization when the dom0 init ?and
> when does the frontend in guestOS try to connet with the blkback in the
> dom0? and how does the frontend do? how does the frontend register the
> relative entryes in the xenstore in the dom0?
> I am really puzzled ,could anyone help me?
http://wiki.xensource.com/xenwiki/XenSplitDrivers
http://wiki.xensource.com/xenwiki/XenStoreReference
HTH,
Ewan.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: backend and frontend
2007-01-26 10:32 ` Ewan Mellor
@ 2007-01-27 12:21 ` tgh
0 siblings, 0 replies; 5+ messages in thread
From: tgh @ 2007-01-27 12:21 UTC (permalink / raw)
To: Ewan Mellor; +Cc: xen-devel
hi
Thank you for reply
I read the wiki about the XenSplitDrivers and XenStoreReference ,
and I made a img file and create a vm with the img ,and the conf file is
like the follows
kernel = "/boot/vmlinuz-2.6.16-xenU"
memory = 256
name = "dom1"
vcpus = 1
vif = [ '' ]
disk = [ 'file:/vm/dom1.img,sda1,w' ]
netmask = "255.255.0.0"
gateway = "192.168.150.1"
hostname = "office1"
ip = "192.168.104.4"
root = "/dev/sda1 ro"
there will be a disk in the backend/vbd/domid/virtual-device in the
xenstore,isn`t it?
Does xen support the vm to hotplug another virtual disk ,which is
accessed by dom0?
If it does,what and how does xen deal with the backend and the xenstore?
Are there two elements in the backend/vbd/domid/ in the xenstore?
and what about the frontend in the vm ,are there two frontend in the vm
or just one? how to identify them then?
If it does not ,what should we do to make it work?
Does it need another frontend in the vm or not ?
and how about the backend ?
could you give me some guide ?
Thanks in advance
Ewan Mellor 写道:
> On Fri, Jan 26, 2007 at 10:04:15AM +0800, tgh wrote:
>
>
>> hi
>> I try to understand the blkback and blkfront codes,and I am puzzled
>> about the initialization for both blkback and frontend.
>> Does the blkback complete the initialization when the dom0 init ?and
>> when does the frontend in guestOS try to connet with the blkback in the
>> dom0? and how does the frontend do? how does the frontend register the
>> relative entryes in the xenstore in the dom0?
>> I am really puzzled ,could anyone help me?
>>
>
> http://wiki.xensource.com/xenwiki/XenSplitDrivers
> http://wiki.xensource.com/xenwiki/XenStoreReference
>
> HTH,
>
> Ewan.
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-01-27 12:21 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-01-25 15:40 shadow page code Ky Srinivasan
2007-01-25 15:51 ` Tim Deegan
2007-01-26 2:04 ` backend and frontend tgh
2007-01-26 10:32 ` Ewan Mellor
2007-01-27 12:21 ` tgh
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