Hi, this series teaches kvmtool how to support KVM's ITS emulation. Also (as this is somewhat related and has been co-developed) it enables GSI routing for ARM/ARM64, which allows IRQFDs to be used, for instance to use vhost_net. At the moment this is dependent on the guest using the ITS emulation, but GICv2M support may be added at later time. The first 5 patches are generic fixes and refactoring to pave the road for the rest of the patches. Most importantly patch 3/15 pulls the GSI routing code from x86 into generic code. The following 6 patches add ITS emulation support. They reserve and register the required ITS register frame and populate a DT node with the necessary data. Also the patches add the device ID to the KVM_SIGNAL_MSI ioctl. Patches 12/15 and 13/15 enable IRQ GSI routing for ARM/ARM64. This is needed to use IRQFDs, which is a prerequisite for vhost functionality, for instance. The code sets up the (dummy) SPI routing table and adds the device ID to the routing entry. Patch 14/15 enables the guest ITS support by extending the existing --irqchip= parameter to allow "--irqchip=gicv3-its". The final patch adds a workaround the avoid breaking ARM(32) compilation, which lacks some symbol defines now used in the (shared) ARM GIC handling code. The ITS part relates to the latest kernel ITS emulation series, the IRQ routing code to Eric's respective series [1]. This code can also be found in my kvmtool git repository [2]. Cheers, Andre. [1] https://lists.cs.columbia.edu/pipermail/kvmarm/2016-July/020950.html [2] git://linux-arm.org/kvmtool.git (branch: its/v7) http://www.linux-arm.org/git?p=kvmtool.git;a=log;h=refs/heads/its/v7 Andre Przywara (15): FDT: introduce global phandle allocation arm: use new phandle allocation functions irq: move IRQ routing into irq.c MSI-X: update GSI routing after changed MSI-X configuration virtio: fix endianness check for vhost support PCI: Only allocate IRQ routing entry when available TEMPORARY: update public headers for GICv3 ITS emulation arm: allow creation of an MSI register frame region arm: FDT: create MSI controller DT node add kvm__check_vm_capability PCI: inject PCI device ID on MSI injection arm: setup SPI IRQ routing tables extend GSI IRQ routing to take a device ID arm64: enable GICv3-ITS emulation arm: gic: allow 32-bit compilation Makefile | 5 +- arm/aarch32/arm-cpu.c | 4 +- arm/aarch64/arm-cpu.c | 5 +- arm/aarch64/include/asm/kvm.h | 2 + arm/fdt.c | 8 +- arm/gic.c | 132 +++++++++++++++++++++++++++++- arm/include/arm-common/gic.h | 3 +- arm/include/arm-common/kvm-config-arch.h | 2 +- arm/include/arm-common/kvm-cpu-arch.h | 3 +- arm/include/arm-common/pci.h | 2 +- arm/irq.c | 9 --- arm/pci.c | 13 ++- hw/pci-shmem.c | 5 +- include/kvm/fdt.h | 10 +-- include/kvm/irq.h | 8 +- include/kvm/kvm.h | 1 + include/kvm/virtio.h | 9 ++- include/linux/kvm.h | 13 ++- irq.c | 134 +++++++++++++++++++++++++++++++ kvm-fdt.c | 26 ++++++ kvm.c | 28 +++++++ mips/irq.c | 10 --- powerpc/irq.c | 31 ------- virtio/net.c | 2 +- virtio/pci.c | 87 +++++++++++++++++--- x86/include/asm/kvm.h | 6 +- x86/irq.c | 45 ++--------- 27 files changed, 466 insertions(+), 137 deletions(-) delete mode 100644 arm/irq.c create mode 100644 kvm-fdt.c delete mode 100644 mips/irq.c delete mode 100644 powerpc/irq.c -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
