On 10 October 2016 at 05:55, David Gibson <da...@gibson.dropbear.id.au> wrote: > However right now - until we get fixed-endianness qtest accessors of > some sort - this test is more or less necessary to make most tests > cross platform correct (except PCI, see below). That's because the > testcase will generally know the endianness of the hardware it's > testing, but has to compensate for the endianness that the > readw/writew primitives will use along the way.
The test case isn't testing the hardware (device), though, it's testing the hardware in a system. The same device in QEMU board A could be behind a bridge or otherwise differently wired by the SoC from the device in QEMU board B. The qtest setup doesn't instantiate a device and talk directly to it, it instantiates a board and talks over the same interface the emulated CPU would. thanks -- PMM
