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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi Ram,<br>
<br>
Thanks for the reply. <br>
<br>
We went ahead and modified the code in VBoxServicePageSharing.cpp. We basically added a function VBoxServicePageSharingInspectG
<div id=":2rg"><wbr>uest( ) that compiles for linux platform. In this functions, we are trying to register modules from the linux guest using information obtained from /proc/modules; we are calling the function VbglR3RegisterSharedModule( ) for the same. <
The very function that is used by the code for windows > We are also invoking VbglR3CheckSharedModules( ) after registering, as is being done in case of windows.
<br>
<br>
We have not been able to get any successful results so far (as reported by the VBoxManage metrics). A couple of concerns are:<br>
1. Parameters for VbglR3RegisterSharedModule( ):<br>
a. Name of the module<br>
b. Version of the module<br>
c. Base address of the module (Virtual Address)<br>
d. Base size of the module<br>
e. No. of regions (elements in VMMDEVSHAREDREGIONDESC array)<br>
f. An array describing various memory regions in the module (VMMDEVSHAREDREGIONDESC array)<br>
<br>
- Is our understanding correct ? Or is there anything wrong ?<br>
<br>
2. We are trying to pass each module from /proc/modules in the Linux guest as ONE single region. The name, base address and size are available from /proc/modules. We are passing a dummy value for the version, and filling the array with one entry - address and
size. <br>
<br>
Your comments on the same. Any insights will be helpful, as we are pretty much stuck. Sorry for this verbose email.
<br>
<br>
Thanks</div>
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<div style="direction: ltr;" id="divRpF933931"><font color="#000000" face="Tahoma" size="2"><b>From:</b> Ramshankar [ramshankar.venkataraman@oracle.com]<br>
<b>Sent:</b> Monday, December 10, 2012 5:45 AM<br>
<b>To:</b> Sandeep Koppala<br>
<b>Cc:</b> vbox-dev@virtualbox.org<br>
<b>Subject:</b> Re: [vbox-dev] LogFlow() statements...<br>
</font><br>
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<div class="moz-cite-prefix">On 12/07/2012 04:32 AM, Sandeep Koppala wrote:<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi all,<br>
<br>
I am trying to implement Page Fusion for x64 Linux guests. I understand that this will require changes to the Guest Additions. Specifically, in the VBoxServicePageSharing.cpp code. I have made some changes here and I am trying to call VbglR3RegisterSharedModule
function with information about Linux guest modules.<br>
<br>
1. I am unable to put a trace in the R3 code, the code for the VMM / hypervisor. I am unable to see the LogFlow() messages. Can you help me enable it ?<br>
<br>
2. Is the code that implements page-fusing / sharing in the VMM specific to windows ?<br>
<br>
Thanks in advance !</div>
<br>
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<br>
1. Did you take a look at logging information here: <a class="moz-txt-link-freetext" href="https://www.virtualbox.org/wiki/VBoxLogging" target="_blank">
https://www.virtualbox.org/wiki/VBoxLogging</a> (see Ring-0 logging)?<br>
<br>
2. From a quick glance, the guest additions part of the code is specific to Windows, on the host side it is platform agnostic (not enabled for 64-bit darwin hosts though). The guest addition side has some compile-time defines that only register the service
hooks for Windows (VBoxService.cpp).<br>
<br>
<br>
Regards,<br>
Ram.<br>
<br>
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