15254 %ymm registers not restored after signal handler
15367 x86 getfpregs() summons corrupting %xmm ghosts
15333 want x86 /proc xregs support (libc_db, libproc, mdb, etc.)
15336 want libc functions for extended ucontext_t
15334 want ps_lwphandle-specific reg routines
15328 FPU_CW_INIT mistreats reserved bit
15335 i86pc fpu_subr.c isn't really platform-specific
15332 setcontext(2) isn't actually noreturn
15331 need <sys/stdalign.h>
Change-Id: I7060aa86042dfb989f77fc3323c065ea2eafa9ad
Conflicts:
    usr/src/uts/common/fs/proc/prcontrol.c
    usr/src/uts/intel/os/archdep.c
    usr/src/uts/intel/sys/ucontext.h
    usr/src/uts/intel/syscall/getcontext.c

@@ -39,10 +39,12 @@
 [/opt/os-tests/tests/clock_gettime.32]
 [/opt/os-tests/tests/clock_gettime.64]
 
 [/opt/os-tests/tests/ucontext.32]
 [/opt/os-tests/tests/ucontext.64]
+[/opt/os-tests/tests/getcontext_extd.32]
+[/opt/os-tests/tests/getcontext_extd.64]
 
 [/opt/os-tests/tests/secflags]
 user = root
 tests = ['secflags_aslr',
          'secflags_core',

@@ -157,5 +159,25 @@
 [/opt/os-tests/tests/regression]
 tests = [
         'illumos-15031',
         'illumos-15036'
         ]
+
+#
+# The following tests all represent tests that require the xsave feature
+# set. These are all x86 specific. The use of arch=i86pc below doesn't
+# really represent things that can be run on x86 regardless of the
+# platform and when the test runner gains support for specifying that,
+# use that instead. This would be split into two groups, but that isn't
+# supported, so everything ends up being run as root for the sake of the
+# xsave_baducontext test.
+#
+[/opt/os-tests/tests/xsave]
+arch = i86pc
+pre = xsu_hwtype.64
+user = root
+tests = [ 'bad_xregs.32', 'bad_xregs.64', 'mdb_xregs', 'proc_writes',
+    'setcontext_replace.32', 'setcontext_replace.64', 'setcontext_restore.32',
+    'setcontext_restore.64', 'signal_restore.32', 'signal_restore.64',
+    'xregs_roundtrip.32', 'xregs_roundtrip.64', 'xsave_baducontext',
+    'fpregs_xbv.32', 'fpregs_xbv.64', 'swapcontext_extd.32',
+    'swapcontext_extd.64' ]