On 29.08.2018 17:47, David Hildenbrand wrote: > The DXC was not handled by TCG correctly (and I have a patch series on > the QEMU list, which fixes that). > > Add a simple test case that forces a DATA exception and verifies that > the DXC (0xff) is written to the right locations. One time with and > one time without AFP. > > While at it, I found one bug related to storing/saving floating point > registers during interrupts and added one cleanup. > > Tested under KVM and under TCG. > > v1 -> v2: > - Added "s390x: fix spelling of "initial"" > - Minor style + spelling fixes > > David Hildenbrand (5): > s390x: user ctl_set/clear_bit for low address protection > s390x: fix storing/loading fregs to right address > s390x: fix spelling of "initial" > s390x: save/restore cr0 in IRQ handlers > s390x: test if the DXC is correctly stored > > lib/s390x/asm-offsets.c | 1 + > lib/s390x/asm/arch_def.h | 4 ++- > lib/s390x/asm/float.h | 51 +++++++++++++++++++++++++++++++++++++++ > lib/s390x/asm/interrupt.h | 12 ++------- > s390x/cstart64.S | 19 ++++++++++----- > s390x/emulator.c | 34 ++++++++++++++++++++++++++ > 6 files changed, 104 insertions(+), 17 deletions(-) > create mode 100644 lib/s390x/asm/float.h > I'll queue these and send a pull request. -- Thanks, David / dhildenb
