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Re: [Qemu-devel] [PATCH 0/6] add dumpdts ability to convert dtb to dts
From: |
Li Liu |
Subject: |
Re: [Qemu-devel] [PATCH 0/6] add dumpdts ability to convert dtb to dts |
Date: |
Tue, 26 Aug 2014 10:04:12 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 2014/8/25 20:22, Peter Maydell wrote:
> On 25 August 2014 05:00, john.liuli <address@hidden> wrote:
>> From: Li Liu <address@hidden>
>>
>> This patchset let qemu can convert dtb file to dts for two demands:
>>
>> Some archtectures may generate the dtb file dynamically through
>> qemu device tree functions. So this let it's possiable to dump final
>> dtb to dts and save it as a reference.
>>
>> For novices to debugging the issues caused by wrong dtb parameters.
>> It will be easy to check the dts directly without copying the
>> dtb which may be generated by 'dumpdtb' to the PC and dtc or fdtdump
>> it.
>>
>> The outputed dts format is compatile with 'dtc -I dtb -O dts xxx.dtb'.
>> There's a new parameter 'dumpdts' which is similar to 'dumpdtb'. so try
>> it like '-machine dumpdts=/tmp/xxx.dts'.
>
> Hi. Thanks for this patchset, but I'm afraid this doesn't
> seem to me like something that should be in QEMU.
> As you say, you can easily turn the dtb blob into a source file
> with dtc. That gets you a definitely-correct disassembly of the
> blob, and we don't need to maintain a possibly-buggy
> reimplementation of the dtb disassembler in QEMU.
>
> thanks
> -- PMM
>
That makes sense. It's mostly used for debugging.
Best regards
Li.
>
- [Qemu-devel] [PATCH 0/6] add dumpdts ability to convert dtb to dts, john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 3/6] device_tree.c: Format a blob in memory as dts stream and dump to a file., john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 1/6] device_tree.c: Introduce a function to check multiple strings for dts, john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 2/6] device_tree.c: dump three kind data types of dts to a file desciptor, john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 4/6] device_tree.c: add the main function to analyse the parameter 'dumpdts', john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 6/6] arm: Allow dumping generated dtb to dts file, john.liuli, 2014/08/25
- [Qemu-devel] [PATCH 5/6] machine: add 'dumpdts' parameter to 'machine' optslist., john.liuli, 2014/08/25
- Re: [Qemu-devel] [PATCH 0/6] add dumpdts ability to convert dtb to dts, Peter Maydell, 2014/08/25
- Re: [Qemu-devel] [PATCH 0/6] add dumpdts ability to convert dtb to dts,
Li Liu <=