From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andre Przywara Subject: [RFC PATCH 44/45] KVM: arm/arm64: vgic-new: Add dummy MSI implementation Date: Fri, 25 Mar 2016 02:05:07 +0000 Message-ID: <1458871508-17279-45-git-send-email-andre.przywara@arm.com> References: <1458871508-17279-1-git-send-email-andre.przywara@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org To: Christoffer Dall , Marc Zyngier , Eric Auger Return-path: In-Reply-To: <1458871508-17279-1-git-send-email-andre.przywara@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org Although we don't provide any virtual MSI functionality yet, we need to implement the functions required by the KVM interface. Signed-off-by: Andre Przywara --- virt/kvm/arm/vgic/vgic_irqfd.c | 51 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 virt/kvm/arm/vgic/vgic_irqfd.c diff --git a/virt/kvm/arm/vgic/vgic_irqfd.c b/virt/kvm/arm/vgic/vgic_irqfd.c new file mode 100644 index 0000000..3eee1bd --- /dev/null +++ b/virt/kvm/arm/vgic/vgic_irqfd.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2015, 2016 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +int kvm_irq_map_gsi(struct kvm *kvm, + struct kvm_kernel_irq_routing_entry *entries, + int gsi) +{ + return 0; +} + +int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin) +{ + return pin; +} + +int kvm_set_irq(struct kvm *kvm, int irq_source_id, + u32 irq, int level, bool line_status) +{ + unsigned int spi = irq + VGIC_NR_PRIVATE_IRQS; + + trace_kvm_set_irq(irq, level, irq_source_id); + + BUG_ON(!vgic_initialized(kvm)); + + return kvm_vgic_inject_irq(kvm, 0, spi, level); +} + +/* MSI not implemented yet */ +int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, + struct kvm *kvm, int irq_source_id, + int level, bool line_status) +{ + return 0; +} -- 2.7.3 From mboxrd@z Thu Jan 1 00:00:00 1970 From: andre.przywara@arm.com (Andre Przywara) Date: Fri, 25 Mar 2016 02:05:07 +0000 Subject: [RFC PATCH 44/45] KVM: arm/arm64: vgic-new: Add dummy MSI implementation In-Reply-To: <1458871508-17279-1-git-send-email-andre.przywara@arm.com> References: <1458871508-17279-1-git-send-email-andre.przywara@arm.com> Message-ID: <1458871508-17279-45-git-send-email-andre.przywara@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Although we don't provide any virtual MSI functionality yet, we need to implement the functions required by the KVM interface. Signed-off-by: Andre Przywara --- virt/kvm/arm/vgic/vgic_irqfd.c | 51 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 virt/kvm/arm/vgic/vgic_irqfd.c diff --git a/virt/kvm/arm/vgic/vgic_irqfd.c b/virt/kvm/arm/vgic/vgic_irqfd.c new file mode 100644 index 0000000..3eee1bd --- /dev/null +++ b/virt/kvm/arm/vgic/vgic_irqfd.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2015, 2016 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include + +int kvm_irq_map_gsi(struct kvm *kvm, + struct kvm_kernel_irq_routing_entry *entries, + int gsi) +{ + return 0; +} + +int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin) +{ + return pin; +} + +int kvm_set_irq(struct kvm *kvm, int irq_source_id, + u32 irq, int level, bool line_status) +{ + unsigned int spi = irq + VGIC_NR_PRIVATE_IRQS; + + trace_kvm_set_irq(irq, level, irq_source_id); + + BUG_ON(!vgic_initialized(kvm)); + + return kvm_vgic_inject_irq(kvm, 0, spi, level); +} + +/* MSI not implemented yet */ +int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, + struct kvm *kvm, int irq_source_id, + int level, bool line_status) +{ + return 0; +} -- 2.7.3