From: Tony Krowiak <akrow...@linux.ibm.com> This patch series is the QEMU counterpart to the KVM/kernel support for guest dedicated crypto adapters. The KVM/kernel model is built on the VFIO mediated device framework and provides the infrastructure for granting exclusive guest access to crypto devices installed on the linux host. This patch series introduces a new QEMU command line option, QEMU object model and CPU model features to exploit the KVM/kernel model.
See the detailed specifications for AP virtualization provided by this patch set in docs/vfio-ap.txt for a more complete discussion of the design introduced by this patch series. v7 => v8 Change log: =================== * Enable SIE interpretation AP instructions if the CPU model feature for AP instructions is turned on for the guest. v6 => v7 Change log; =================== * Changed email address for Signed-off-by v5 => v6 Change log: =================== * Added reset handling fo vfio-ap device * Added a bridge/bus to AP device object model - thanks to Halil Pasic v4 => v5 Change log: =================== * Added MAINTAINERS entries for VFIO AP * Added explanation for why we are only supporting zEC12 and newer CPU models. * Changed CPU model feature qci=on|off to apqci=on|off * Misc. minor changes v3 => v4 Change log: =================== * Made vfio-ap device unpluggable for now * Renamed command line CPU model feature for QCI: qci=on -> apqci=on * Removed call to KVM_S390_VM_CRYPTO_INTERPRET_AP ioctl - ioctl was removed from kernel and AP instruction interpretation is set from the VFIO device driver * Added check to ensure only one vfio-ap device can be configured per guest * Removed AP instruction interception handlers: AP instructions will be interpreted by default if AP facilities are installed to handle the case where feature ap=on and no vfio-ap device is configured for the guest. Tony Krowiak (6): linux-headers: linux header updates for AP support s390x/cpumodel: Set up CPU model for AP device support s390x/kvm: enable/disable AP instruction interpretation for guest s390x/ap: base Adjunct Processor (AP) object model s390x/vfio: ap: Introduce VFIO AP device s390: doc: detailed specifications for AP virtualization MAINTAINERS | 14 + default-configs/s390x-softmmu.mak | 1 + docs/vfio-ap.txt | 785 +++++++++++++++++++++++++++++++++++++ hw/s390x/Makefile.objs | 2 + hw/s390x/ap-bridge.c | 76 ++++ hw/s390x/ap-device.c | 39 ++ hw/s390x/s390-virtio-ccw.c | 4 + hw/vfio/Makefile.objs | 1 + hw/vfio/ap.c | 186 +++++++++ include/hw/s390x/ap-bridge.h | 37 ++ include/hw/s390x/ap-device.h | 38 ++ include/hw/vfio/vfio-common.h | 1 + linux-headers/asm-s390/kvm.h | 3 + linux-headers/linux/vfio.h | 2 + target/s390x/cpu_features.c | 3 + target/s390x/cpu_features_def.h | 3 + target/s390x/cpu_models.c | 2 + target/s390x/gen-features.c | 3 + target/s390x/kvm.c | 17 + 19 files changed, 1217 insertions(+), 0 deletions(-) create mode 100644 docs/vfio-ap.txt create mode 100644 hw/s390x/ap-bridge.c create mode 100644 hw/s390x/ap-device.c create mode 100644 hw/vfio/ap.c create mode 100644 include/hw/s390x/ap-bridge.h create mode 100644 include/hw/s390x/ap-device.h
