On 03/11/17 11:38, Jean-Philippe Brucker wrote: > GICv2m is an extension to GICv2 defined in the Server Base System > Architecture (SBSA) [1], allowing pre-GICv3 platforms to support MSIs. > > Presenting GICv2m frames to the guest can be useful for testing PCI > pass-through on platforms that have a GICv2m, for example AMD Seattle. > Otherwise they are forced to use legacy INTx. > > This series adds a GICv2m frame to kvmtool, which is basically an MMIO > register telling the guest which SPIs (Shared Peripheral Interrupts) are > reserved for MSIs. When configuring MSI vectors, the guest writes the > desired SPI number into the MSI data field. Then in kvmtool we create > the IRQFD routes such that they inject the given SPI. > > [1] https://developer.arm.com/products/architecture/a-profile/docs/den0029/latest/server-base-system-architecture > > Jean-Philippe Brucker (2): > Prevent segfault when kvm_pause is called too early > Add GICv2m support > > Makefile | 2 +- > arm/aarch32/include/asm/kvm.h | 2 + > arm/aarch64/include/asm/kvm.h | 2 + > arm/gic.c | 13 +++ > arm/gicv2m.c | 153 +++++++++++++++++++++++++++++++ > arm/include/arm-common/gic.h | 3 + > arm/include/arm-common/kvm-config-arch.h | 2 +- > include/kvm/irq.h | 11 +++ > irq.c | 68 +++++++++++--- > kvm.c | 2 +- > virtio/pci.c | 4 +- > 11 files changed, 245 insertions(+), 17 deletions(-) > create mode 100644 arm/gicv2m.c > Thanks for putting this together. For both patches: Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx> M. -- Jazz is not dead. It just smells funny...
