From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.auger@linaro.org (Eric Auger) Date: Mon, 29 Jun 2015 17:37:17 +0200 Subject: [PATCH 7/7] KVM: arm: implement kvm_set_msi by gsi direct mapping In-Reply-To: <1435592237-17924-1-git-send-email-eric.auger@linaro.org> References: <1435592237-17924-1-git-send-email-eric.auger@linaro.org> Message-ID: <1435592237-17924-8-git-send-email-eric.auger@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org If the ITS modality is not available, let's simply support MSI injection by transforming the MSI.data into an SPI ID. This becomes possible to use KVM_SIGNAL_MSI ioctl for arm too. Signed-off-by: Eric Auger --- arch/arm/kvm/Kconfig | 1 + virt/kvm/arm/vgic.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index 151e710..0f58baf 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -31,6 +31,7 @@ config KVM select KVM_VFIO select HAVE_KVM_EVENTFD select HAVE_KVM_IRQFD + select HAVE_KVM_MSI select HAVE_KVM_IRQCHIP select HAVE_KVM_IRQ_ROUTING depends on ARM_VIRT_EXT && ARM_LPAE && ARM_ARCH_TIMER diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 0b4c48c..b3c10dc 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -2314,6 +2314,11 @@ int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, return kvm->arch.vgic.vm_ops.inject_msi(kvm, &msi); else return -ENODEV; + case KVM_IRQ_ROUTING_MSI: + if (kvm->arch.vgic.vm_ops.inject_msi) + return -EINVAL; + else + return kvm_vgic_inject_irq(kvm, 0, e->msi.data, level); default: return -EINVAL; } -- 1.9.1