<br><br><div class="gmail_quote">On Wed, May 9, 2012 at 5:40 AM, Fredrick <span dir="ltr"><<a href="mailto:fjohnber@zoho.com" target="_blank">fjohnber@zoho.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I need to convert a user virtual address to its<br>
corresponding physical address.<br>
I know that if the virtual address is from kernel,<br>
we could use virt_to_phys.<br>
Is there a similar helper function<br>
to convert user virtual address.?<br>
<br></blockquote><div>Hi Fredrick, <br><br>Please elaborate the purpose, <br><br>User-space application allowed to have virtual address upto 3GB, assuming 1:3 address space split.<br>And its not mandatory for all user-space address to be valid and to have all user-space address to have a valid physical address mapping.<br>
<br><br>Thanks,<br>Chetan <br><br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Thanks,<br>
Fredrick<br>
<br>
<br>
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