On Thu, 26 Oct 2017 11:54:49 -0400 Tony Krowiak <akrowiak@xxxxxxxxxxxxxxxxxx> wrote: > I was asked to post this QEMU patch set to the mailing list to illustrate > how the KVM/kernel counterpart will be used. The KVM/kernel patches can be > viewed at: > > https://lkml.org/lkml/2017/10/13/706 > > The IBM Adjunct Processor (AP) Cryptographic Facility is comprised > of three AP instructions and from 1 to 256 PCIe cryptographic adapter cards. > These AP adapters provide cryptographic functions to all CPUs assigned to a > linux system running in an IBM Z system LPAR. > > This patch series introduces a new QEMU command line option and QEMU object > model to obtain direct guest access to one or more AP adapter cards assigned > to the LPAR in which the host linux system is running. It is predicated > on the KVM/kernel model for providing direct guest access to AP adapters. A > complete description for dedicating crypto adapters to a linux guest can be > found in the docs/ap-matrix.txt file provided with this patch set. > > Signed-off-by: Tony Krowiak <akrowiak@xxxxxxxxxxxxxxxxxx> +cc qemu-devel@xxxxxxxxxx The interface exposed by the kernel looks fine to me, and I did not spot really broken things on a quick readthrough. I'd like more feedback, though. > > Tony Krowiak (5): > s390x/ap-matrix: Adjunct Processor (AP) matrix object model > s390x/vfio: ap-matrix: Introduce VFIO AP Matrix device > s390x/ap-matrix: Configure AP matrix for KVM guest > s390x/cpumodel: enable AP facilities for guest > s390x/docs: documentation for ap-matrix > > default-configs/s390x-softmmu.mak | 1 + > docs/ap_matrix.txt | 529 +++++++++++++++++++++++++++++++++++++ > hw/s390x/Makefile.objs | 2 + > hw/s390x/ap-matrix-device.c | 33 +++ > hw/s390x/ap-matrix-device.h | 53 ++++ > hw/s390x/s390-ap-matrix.c | 52 ++++ > hw/vfio/Makefile.objs | 1 + > hw/vfio/ap-matrix.c | 224 ++++++++++++++++ > include/hw/s390x/s390-ap-matrix.h | 39 +++ > include/hw/vfio/vfio-common.h | 1 + > linux-headers/linux/vfio.h | 29 ++- > target/s390x/cpu_features.c | 2 + > target/s390x/cpu_features_def.h | 2 + > target/s390x/gen-features.c | 4 + > 14 files changed, 969 insertions(+), 3 deletions(-) > create mode 100644 docs/ap_matrix.txt > create mode 100644 hw/s390x/ap-matrix-device.c > create mode 100644 hw/s390x/ap-matrix-device.h > create mode 100644 hw/s390x/s390-ap-matrix.c > create mode 100644 hw/vfio/ap-matrix.c > create mode 100644 include/hw/s390x/s390-ap-matrix.h > -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
