Hi,alls
Xen kernel may modify domu's memory but the domu can't know.I need to save
the memory before xen kernel modify it,so I want to save the memory in xen
kernel sapce.But I don't know how to get the address of domu's one page
memory.Could anybody tell me?
Thanks!
___
Hi,alls,
I want to achieve that the xen kernel can xend a notification to a domu,
and then the domu can receive the notification and handle this notification.
now,I think the event channel can achieve it.But I don't have enough
information about event channel. Can who describe in detail the p
Hi,alls,
In xen-4.4.1/tools/libxc/xc_domain_save.c/xc_domain_save(),there are two
function calls:
region_base = xc_map_foreign_bulk(xch, dom, PROT_READ, pfn_type, pfn_err,
batch);
munmap(region_base, batch*PAGE_SIZE);
I know the function wruncached(io_fd,
live,(char*)region_base+(PAGE_SIZE*(j-
Hi,alls
As we know,xen 4+ maintains a dirty bitmap. Snapshot or migration will
use this bitmap. When the guest domain changes the memory page， VMM can
capture it and set dirty bitmap to 1.
But I can't know how VMM to maintain this dirty bitmap. Under what
circumstances VMM will set the di
Hi,alls
As we know,xen 4+ maintains a dirty bitmap. Snapshot or migration will
use this bitmap. When the guest domain changes the memory page， VMM can
capture it and set dirty bitmap to 1. I want to know the position in source
code of this operation. And how did this process be realized？
Than
Hi,alls
I 'm modifying the source code of snapshot in xen-4.4.1. I know the memory
copy and cpu state copy are all in xc_domain_save.c--xc_domain_save().
But I don't sure where is the device state copy. Who can tell me the
position of device copy in source code.
Thanks
__
Hi,alls
I know the snapshot of xen-4.4.1 is through the function xc_domain_save()
to achieve.But I want to know from executing the command "xl save" to
executing the function xc_domain_save(),how it is call.
Has anybody can tell me the call relationship from python to C about
snapshot?
Thanks
__
rint debug
information into files,but I couldn't find the file I created.
Thanks
2015-10-19 17:04 GMT+08:00 Wei Liu :
> On Mon, Oct 19, 2015 at 10:22:52AM +0800, 高强 wrote:
> > Hi,alls
> >
> >
> > There are some python code in xen-4.4.1,and in the python code th
Hi,
If you know, could you tell me the call relationship of command "xl save".
Example, when I execute "xl save",which function will be called first,and
then call which function? I mainly want to know which python function will
be called.
Thanks
2015-10-20 10:22 GMT+08:00 高
Hi,alls
There are some python code in xen-4.4.1,and in the python code there are
lots debug information such as
log.debug("***"),log.exception("***"),XendError("*")and so on.
I want to get this kind of information but I don't know where to get them.
Can someone tell me?
else,I try t
Hi,alls.
in xen-4.4.1/tools/libxc/xc_domain_save.c,the function
xc_domain_save(),there are two function xc_report_progress_start()
and xc_report_progress_step().And so as xc_domain_restore().
I don't know the function of these two functions,has anyone can tell me?
thanks
imilar thing - can you please tell me how you copy
> the memory pages from one part of the memory to another?
>
> On Tue, Oct 13, 2015 at 10:04 AM 高强 wrote:
>
>> Hi,alls
>>
>> I'm modifying the source code of xen-4.4.1. Specifically, I'm modifying
>> t
Hi,alls
I'm modifying the source code of xen-4.4.1. Specifically, I'm modifying the
memory copy part of snapshot. I first put all memory pages to write
protection, and then rewrite the write protection exception part of the
code. After capture the exception then save the memory page , and all
mem
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