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xen-devel
Re: [Xen-devel] ioremap failing in linux guest
The driver for the network processor that I am using does an ioremap
call to map memory previously reserved using the mem & memap kernel
parameters. for eg. if I reserve memory using memmap=384M$512M, it is
calling ioremap(384,512) (with appropriate conversion to bytes) and
later using the returned address to setup its queues.
-Anish
Jeremy Fitzhardinge wrote:
Anish Bhatt wrote:
Is there an API for converting pseudophysical addresses to machine
addresses or possibly sample code somewhere ?
What are you trying to achieve? ioremap is only valid to use on
device memory anyway, so you shouldn't be in a position to use it
unless you've already got machine addresses in hand (and they're going
to be machine addresses with no existing pfn translation).
J
--
As long as the music's loud enough, we won't hear the world falling apart.
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