On 10.02.20 18:53, Cornelia Huck wrote: > On Fri, 7 Feb 2020 06:39:47 -0500 > Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote: > >> From: Janosch Frank <frankja@xxxxxxxxxxxxx> >> >> A lot of the registers are controlled by the Ultravisor and never >> visible to KVM. Some fields in the sie control block are overlayed, >> like gbea. As no userspace uses the ONE_REG interface on s390 it is safe >> to disable this for protected guests. > > Last round, I suggested > > "As no known userspace uses the ONE_REG interface on s390 if sync regs > are available, no functionality is lost if it is disabled for protected > guests." If you think this variant is better I can use this, I am fine with either. > > Any opinion on that? > >> >> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx> >> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> >> Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx> >> [borntraeger@xxxxxxxxxx: patch merging, splitting, fixing] >> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> >> --- >> Documentation/virt/kvm/api.txt | 6 ++++-- >> arch/s390/kvm/kvm-s390.c | 3 +++ >> 2 files changed, 7 insertions(+), 2 deletions(-) >
