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Re: [Qemu-devel] aarch64 & gdb: warning: while parsing target descriptio

From: Christopher Covington
Subject: Re: [Qemu-devel] aarch64 & gdb: warning: while parsing target description (at line 1): Could not load XML document "arm-core.xml"
Date: Thu, 07 Aug 2014 10:13:08 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2

On 08/07/2014 09:53 AM, Peter Maydell wrote:
> On 7 August 2014 14:43, Christopher Covington <address@hidden> wrote:
>> On 08/07/2014 08:03 AM, Peter Maydell wrote:
>>> No, because at the moment our AArch64 TCG implementation
>>> (and the way we configure KVM) assumes that the highest
>>> exception level is running AArch64. We might fix this eventually,
>>> though.
>> When EL3 and EL2 support is added, the bootloader will
>> presumably have to be modified to make the switch from
>> EL3 into EL2. In my experience switching into AArch32
>> EL2 instead of AArch64 EL2 is an easy option to add.
> I think the biggest difficulty is not the code to actually
> do the switch but figuring out what the command line
> UI to request "start in AArch32" ought to be and how that
> then gets plumbed into the code to do the actual work.

ELF-32 file passed to -kernel seems to me like a reasonable place to start.


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