Re: [Qemu-devel] QEMU aarch64 TCG target - testing question about x86-64

[Paolo Bonzini <pbonzini@redhat.com>]

Il 06/05/2013 14:56, Claudio Fontana ha scritto:
> On 14.03.2013 17:16, Peter Maydell wrote:
>> On 14 March 2013 15:57, Claudio Fontana <claudio.fontana@huawei.com> wrote:
>>> I am currently working on an aarch64 tcg target implementation,
>>> based on the available gdb patches contributed by ARM and the results
>>> of the linaro toolchain.
>>
>> Doing a target implementation based on the gdb/binutils
>> patches and not the actual documentation is going to be
>> enormously painful to review (to the point that I will almost
>> certainly just say "sorry, no"), because it will basically
>> be "you have the semantics of this wrong", "you have the
>> decoding wrong" all the way through for a whole pile of
>> corner cases. You need to be working from the actual ARM
>> documentation (which I regret is currently only available
>> under NDA).
>>
>> See also the patchset that Alex Graf posted recently (which
>> is a bunch of framework code but not the actual decoder).
>>
>> -- PMM
>>
> 
> Well, we happen to have just completed a first working version of TCG support for aarch64 here,
> and it has been tested successfully running on Foundation v8, running the system emulation for various targets
> (at the moment armv5/linux, armv7/linux, x86 FreeDOS, X86 Linux).
> 
> I understand that you have reservations on upstreaming this work for the reasons you explain above,
> so for now it will be available to Huawei only. If anybody is interested, I will be happy to send the patches.
> 
> Now I have a question regarding the test images, I have seen various QEMU images at
> wiki.qemu.org/Testing
> 
> I have tested with some of those, but I don't see an x86-64 test case;
> is there a reference test kernel/image for x86-64?

No, usually people just do a "smoke test" using their favorite distro
and/or Windows.

More complete integration testing of i386/x86-64 images is done with
virt-test, which supports a variety of distros.  The closest thing to a
reference image is virt-test's "JeOS" image at
http://lmr.fedorapeople.org/jeos/jeos-17-64.qcow2.7z (should probably be
added to the list...), currently based on Fedora 17.

Paolo