From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] PATCH/RFC: PCI memory mapping
Date: Fri, 3 Apr 2009 15:28:45 +0000 [thread overview]
Message-ID: <200904031628.45716.paul@codesourcery.com> (raw)
In-Reply-To: <1238771149.28860.75.camel@nibbler.dlib.indiana.edu>
> So, for example, a cirrus vga device on bus 1 when calling:
>
> cpu_register_physical_memory(addr, s->vram_size,
> s->cirrus_linear_io_addr);
Ah, that's a different (but somewhat related) problem. This is for accesses
from the CPU to the device. Most current IOMMU effect device->CPU
accesses[1].
Paul
[1] For practical purposes assume the the CPU and system ram are on the same
bus.
next prev parent reply other threads:[~2009-04-03 15:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-02 14:57 [Qemu-devel] PATCH/RFC: PCI memory mapping Brian Wheeler
2009-04-02 15:18 ` [Qemu-devel] " Tristan Gingold
2009-04-02 17:23 ` Brian Wheeler
2009-04-02 17:32 ` [Qemu-devel] " Blue Swirl
2009-04-02 17:42 ` Brian Wheeler
2009-04-02 22:40 ` Paul Brook
2009-04-03 15:05 ` Brian Wheeler
2009-04-03 15:28 ` Paul Brook [this message]
2009-04-03 16:01 ` Brian Wheeler
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