This patch implement the QEMU part to retrieve ZPCI specific information from the host. The Linux part has been posted on a separate patch on the LKML. Subject: [PATCH 0/4] Retrieving zPCI specific info with VFIO Message-Id: <1557476555-20256-1-git-send-email-pmo...@linux.ibm.com> We use the PCI VFIO interface to retrieve ZPCI specific information from the host with a ZPCI specific device region. The retrieval is done only once per function and function group during the plugging of the device. The guest's requests are filled with shadow values we keep for the duration of the device remains plugged.
Still there are some values we need to virtualize, like the UID and FID of the zPCI function, and we currently only allow the refresh bit for the zPCI group flags. Note that we export the CLP specific definitions in a dedicated file for clarity. Pierre Morel (5): vfio: vfio_iommu_type1: linux header place holder s390: PCI: Creation a header dedicated to PCI CLP s390: vfio_pci: Use a PCI Group structure s390: vfio_pci: Use a PCI Function structure s390: vfio_pci: Get zPCI function info from host hw/s390x/s390-pci-bus.c | 144 +++++++++++++++++++++++++-- hw/s390x/s390-pci-bus.h | 15 ++- hw/s390x/s390-pci-clp.h | 211 ++++++++++++++++++++++++++++++++++++++++ hw/s390x/s390-pci-inst.c | 28 +++--- hw/s390x/s390-pci-inst.h | 196 ------------------------------------- linux-headers/linux/vfio.h | 14 ++- linux-headers/linux/vfio_zdev.h | 34 +++++++ 7 files changed, 422 insertions(+), 220 deletions(-) create mode 100644 hw/s390x/s390-pci-clp.h create mode 100644 linux-headers/linux/vfio_zdev.h -- 2.7.4
