On 21.02.2018 20:35, Collin L. Walling wrote: > It is possible while waiting for multiple types of external > interrupts that we might have pending irqs remaining between > irq consumption and irq-type disabling. Those interrupts > could potentially propagate to the guest after IPL completes > and cause unwanted behavior. > > As it is today, the SCLP will only recognize write events that > are enabled by the control program's send and receive masks. To > limit the window for, and prevent further irqs from, ASCII > console events (specifically keystrokes), we should only enable > the control program's receive mask when we need it. > > While we're at it, remove assignment of the (non control program) > send and receive masks, as those are actually set by the SCLP. > > Signed-off-by: Collin L. Walling <wall...@linux.vnet.ibm.com> > --- > pc-bios/s390-ccw/menu.c | 5 +++++ > pc-bios/s390-ccw/s390-ccw.h | 1 + > pc-bios/s390-ccw/sclp.c | 10 ++++------ > 3 files changed, 10 insertions(+), 6 deletions(-)
Reviewed-by: Thomas Huth <th...@redhat.com>
