On Thu, Jan 02, 2014 at 10:09:50AM -0800, Christoffer Dall wrote: > On Thu, Jan 02, 2014 at 05:40:24PM +0000, Peter Maydell wrote: > > On 2 January 2014 16:54, Andrew Jones <drjones@xxxxxxxxxx> wrote: > > > On Sat, Dec 28, 2013 at 10:31:35PM -0800, Christoffer Dall wrote: > > >> On Wed, Dec 04, 2013 at 05:42:57PM +0100, Andrew Jones wrote: > > >> > + ands r3, r8, #CR_B @set BE, if necessary > > >> > + ldrne r3, =cpu_is_be > > >> > + movne r4, #1 > > >> > > >> This is deprecated for ARMv7 according to the ARM ARM. What is the > > >> intention here? Does qemu support running this test tool with the > > >> system configured for big-endian? If so, I think this is a build option > > >> for this binary or you need to come up with some other > > >> architecture-compliant method of detecting the endian-state. > > > > > > Yes, qemu allows big-endian. I haven't tested it though, but suspect > > > someday we will want big-endian guests tested as well. I'll fix the > > > detection. > > > > QEMU does not support system mode big-endian. (Some of the > > pieces are there for it but we have no board that needs it.) > > > > Also, you should read up in the ARM ARM about the differences > > between old style BE32 and new BE8. (The quick summary is here: > > http://translatedcode.wordpress.com/2012/04/) > > What you're trying to do here is enable old-style BE32. This is > > not supported on any ARMv7 or later CPU, which means it does > > not overlap at all with virtualization support. > > > > We probably do care about BE8 big-endian guest support testing. > > (kvmtool can run guests in this mode; QEMU doesn't currently). > > > Yeah, so I think this logic should go away from the test suite for now, > focs on getting a decent set of actual functional tests up and running, > and then probably add aarch64 support before looking at big-endian > support. > OK, sounds good. The cpu_is_be stuff scattered about should still be fine to leave in, and we can go about actually detecting BE and setting cpu_is_be whenever. thanks, drew _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
