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Re: [Qemu-devel] [PATCH v5 10/10] hw/arm/dyn_sysbus_devtree: enable simp
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH v5 10/10] hw/arm/dyn_sysbus_devtree: enable simple VFIO dynamic instantiation |
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Date: |
Tue, 19 Aug 2014 09:17:43 +0100 |
On 19 August 2014 08:24, Eric Auger <address@hidden> wrote:
> Putting size=1 was the only solution I found to use an offset relative
> to the parent bus instead of an absolute base address. I would explain
> this because, in platform_bus_create_devtree, the function that creates
> the "platform bus" node, #address-cells and #size-cells currently are
> set to 1. I assume the motivation was that bus size was supposed to be
> smaller than 4GB. Then I guess the problem is shifted to the inclusion
> of the platform bus in any ARM platform.
Ah, I see. Yes, if the containing node is setting addr/size to 1
then 1 is correct, and the limitation then is just the 4GB max.
thanks
-- PMM