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From: Alexander Graf <agraf@suse.de>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] shm problem
Date: Fri, 22 Jun 2007 17:21:14 +0200	[thread overview]
Message-ID: <467BE8EA.7070705@suse.de> (raw)

Hi,

when using mmap with qemu-i386 on x86_64 it's quite simple to get 32-bit
pointers back (using the MAP_32BIT flag, thanks to Kirill for the patch).

I'm currently in the need for shared memory though, so I need shmat() to
return something within the lower 31 Bits as well.

shmget(0x56a4d5, 488, IPC_CREAT|0660)   = 11075627
shmat(11075627, 0, 0)                   = 0x2b4ceb29e000

Does anyone have an idea how to get around this and force shmat to
return something a 32-bit target can handle? In the end it only calls
mmap too...

Thanks,

Alex

                 reply	other threads:[~2007-06-22 15:19 UTC|newest]

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