Re: [Qemu-devel] [PATCH] s390x/tcg: fixup TEST PROTECTION

[Cornelia Huck <cohuck@redhat.com>]

On Fri, 12 Jan 2018 13:54:52 +0100
David Hildenbrand <david@redhat.com> wrote:

> CC == 2 can only happen due to a protection exception, not if memory is
> not available (PGM_ADDRESSING). So all PGM_ADDRESSING exceptions have to
> be forwarded to the guest.
> 
> Since the initial definition of TEST PROTECTION, we now read globals
> (e.g. PSW mask), so we have to correctly mark the instruction
> (otherwise, e.g. booting fedora 27 fails).
> 
> Also, the architecture explicitly specifies which exceptions are
> forwarded to the guest, this makes the code a little nicer.
> 
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
>  target/s390x/cpu.h        |  2 ++
>  target/s390x/helper.h     |  2 +-
>  target/s390x/EM_helper.c | 41 +++++++++++++++++++----------------------
>  3 files changed, 22 insertions(+), 23 deletions(-)

Thanks, applied.