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Re: [Qemu-devel] Win98: how to exchange data with Linux

From: Filip Navara
Subject: Re: [Qemu-devel] Win98: how to exchange data with Linux
Date: Tue, 13 Jul 2004 19:22:45 +0200
User-agent: Mozilla Thunderbird 0.6 (Windows/20040502)

Adrian Smarzewski wrote:

It's a windows nt driver for ext2 partitions. maybe we could
change it so instead of writting files on real drive it will
pass commands to qemu? file system is not so important, but
this driver is lgpl'ed.

At first guys, you confuse file system drivers and storage drivers. The file system drivers have de facto no knowledge on which disk are the data located, (on Windows) they recieve an object and send Read/Write requests to it (well, basicly, in reality there's also the cache manager between them). At second, the idea can't work, even if you would have a storage driver that uses some backdoor I/O port to access host disk, the host OS can't access the same partition at the same time due to things like caching (on both sides (guest/host)).

- Filip

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