On 07.12.2012, at 13:30, Cornelia Huck wrote: > Explicitely catch all channel I/O related instructions intercepts > in the kernel and set condition code 3 for them. > > This paves the way for properly handling these instructions later > on. > > Note: This is not architecture compliant (the previous code wasn't > either) since setting cc 3 is not the correct thing to do for some > of these instructions. For Linux guests, however, it still has the > intended effect of stopping css probing. > > Reviewed-by: Marcelo Tosatti <[email protected]> > Signed-off-by: Cornelia Huck <[email protected]> > --- > arch/s390/kvm/intercept.c | 19 +++++++++++++--- > arch/s390/kvm/kvm-s390.h | 1 + > arch/s390/kvm/priv.c | 56 +++++++++++++++++++++++++++++++++-------------- > 3 files changed, 56 insertions(+), 20 deletions(-) > > diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c > index ec1177f..754dc9e 100644 > --- a/arch/s390/kvm/intercept.c > +++ b/arch/s390/kvm/intercept.c > @@ -33,8 +33,6 @@ static int handle_lctlg(struct kvm_vcpu *vcpu) > int reg, rc; > > vcpu->stat.instruction_lctlg++; > - if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f) > - return -EOPNOTSUPP; > > useraddr = disp2; > if (base2) > @@ -104,6 +102,21 @@ static int handle_lctl(struct kvm_vcpu *vcpu) > return 0; > } > > +static intercept_handler_t eb_handlers[256] = {
const. Reviewed-by: Alexander Graf <[email protected]> Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
