On 02.11.18 11:30, Pierre Morel wrote: > The S390 APQP/AQIC instruction can be intercepted by the host > to configure the AP queues interruption handling for and handle > the ISC used by the host and the guest and the indicator address. > > This patch series define the AQIC feature in the cpumodel, > extend the APDevice type for per queue interrupt handling, > intercept the APQP/AQIC instruction, uses the S390 adapter interface > to setup the adapter and use a VFIO ioctl to let the VFIO-AP > driver handle the host instruction associated with the intercepted > guest instruction. > > This patch serie can be tested with the Linux/KVM patch series > for the VFIO-AP driver: "s390: vfio: ap: Using GISA for AP Interrupt" > > Pierre Morel (5): > s390x/vfio: ap: Linux uapi VFIO place holder > s390x/cpumodel: Set up CPU model for AQIC interception > s390x/vfio: ap: Definition for AP Adapter type > s390x/vfio: ap: Intercepting AP Queue Interrupt Control > s390x/vfio: ap: Implementing AP Queue Interrupt Control > > hw/vfio/ap.c | 100 ++++++++++++++++++++++++++++++++ > include/hw/s390x/ap-device.h | 55 ++++++++++++++++++ > include/hw/s390x/css.h | 1 + > linux-headers/linux/vfio.h | 22 +++++++ > target/s390x/cpu_features.c | 1 + > target/s390x/cpu_features_def.h | 1 + > target/s390x/cpu_models.c | 1 + > target/s390x/kvm.c | 20 +++++++ > 8 files changed, 201 insertions(+) >
I had a very quick high level look at it and it seems to be in general fine. -- Thanks, David / dhildenb
