On Mon, 28 Aug 2017 10:07:28 +0200 Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote: > From: "Jason J. Herne" <jjherne@xxxxxxxxxxxxxxxxxx> > > kvm has always supported the concept of starting in z/Arch mode so let's > reflect the feature bit to the guest. > > Also, we change sigp set architecture to reject any request to change > architecture modes. What are the implications of this for guests? IIRC, czam is a z14 feature (the updated PoP is not yet out, is it?). We now reject any set arch sigp, even if we profess to be an older machine. Linux can probably deal with this, but is it correct? > > Signed-off-by: Jason J. Herne <jjherne@xxxxxxxxxxxxxxxxxx> > Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> > Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> > --- > arch/s390/kvm/sigp.c | 36 +++++++++++++++++------------------- > arch/s390/tools/gen_facilities.c | 1 + > 2 files changed, 18 insertions(+), 19 deletions(-)
