On 14.03.2013 17:16, Peter Maydell wrote: > On 14 March 2013 15:57, Claudio Fontana <claudio.font...@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? Thanks, Claudio Fontana Server OS Architect Huawei Technologies Duesseldorf GmbH Riesstraße 25 - 80992 München
