From: Eric Auger <eric.auger@linaro.org> To: eric.auger@st.com, eric.auger@linaro.org, linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com, christoffer.dall@linaro.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: andre.przywara@arm.com, pbonzini@redhat.com, patches@linaro.org Subject: [PATCH v2 5/7] KVM: arm/arm64: build a default routing table Date: Thu, 9 Jul 2015 10:22:15 +0200 [thread overview] Message-ID: <1436430137-24205-6-git-send-email-eric.auger@linaro.org> (raw) In-Reply-To: <1436430137-24205-1-git-send-email-eric.auger@linaro.org> Implement a default routing table made of flat irqchip routing entries (gsi = irqchip.pin) covering the VGIC SPI indexes. This routing table is overwritten by the first user-space call to KVM_SET_GSI_ROUTING ioctl. Signed-off-by: Eric Auger <eric.auger@linaro.org> --- PATCH: creation --- virt/kvm/arm/vgic.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 6c6c25e..63be67e 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1781,6 +1781,8 @@ int vgic_init(struct kvm *kvm) ret |= vgic_init_bitmap(&dist->irq_cfg, nr_cpus, nr_irqs); ret |= vgic_init_bytemap(&dist->irq_priority, nr_cpus, nr_irqs); + ret |= kvm_setup_default_irq_routing(kvm); + if (ret) goto out; @@ -2258,6 +2260,25 @@ out: return r; } +int kvm_setup_default_irq_routing(struct kvm *kvm) +{ + struct kvm_irq_routing_entry *entries; + u32 nr = kvm->arch.vgic.nr_irqs - VGIC_NR_PRIVATE_IRQS; + int i, ret; + + entries = kcalloc(nr, sizeof(struct kvm_kernel_irq_routing_entry), + GFP_KERNEL); + for (i = 0; i < nr; i++) { + entries[i].gsi = i; + entries[i].type = KVM_IRQ_ROUTING_IRQCHIP; + entries[i].u.irqchip.irqchip = 0; + entries[i].u.irqchip.pin = i; + } + ret = kvm_set_irq_routing(kvm, entries, nr, 0); + kfree(entries); + return ret; +} + int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, int irq_source_id, int level, bool line_status) -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: eric.auger@linaro.org (Eric Auger) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 5/7] KVM: arm/arm64: build a default routing table Date: Thu, 9 Jul 2015 10:22:15 +0200 [thread overview] Message-ID: <1436430137-24205-6-git-send-email-eric.auger@linaro.org> (raw) In-Reply-To: <1436430137-24205-1-git-send-email-eric.auger@linaro.org> Implement a default routing table made of flat irqchip routing entries (gsi = irqchip.pin) covering the VGIC SPI indexes. This routing table is overwritten by the first user-space call to KVM_SET_GSI_ROUTING ioctl. Signed-off-by: Eric Auger <eric.auger@linaro.org> --- PATCH: creation --- virt/kvm/arm/vgic.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 6c6c25e..63be67e 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1781,6 +1781,8 @@ int vgic_init(struct kvm *kvm) ret |= vgic_init_bitmap(&dist->irq_cfg, nr_cpus, nr_irqs); ret |= vgic_init_bytemap(&dist->irq_priority, nr_cpus, nr_irqs); + ret |= kvm_setup_default_irq_routing(kvm); + if (ret) goto out; @@ -2258,6 +2260,25 @@ out: return r; } +int kvm_setup_default_irq_routing(struct kvm *kvm) +{ + struct kvm_irq_routing_entry *entries; + u32 nr = kvm->arch.vgic.nr_irqs - VGIC_NR_PRIVATE_IRQS; + int i, ret; + + entries = kcalloc(nr, sizeof(struct kvm_kernel_irq_routing_entry), + GFP_KERNEL); + for (i = 0; i < nr; i++) { + entries[i].gsi = i; + entries[i].type = KVM_IRQ_ROUTING_IRQCHIP; + entries[i].u.irqchip.irqchip = 0; + entries[i].u.irqchip.pin = i; + } + ret = kvm_set_irq_routing(kvm, entries, nr, 0); + kfree(entries); + return ret; +} + int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, int irq_source_id, int level, bool line_status) -- 1.9.1
next prev parent reply other threads:[~2015-07-09 8:22 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-07-09 8:22 [PATCH v2 0/7] KVM: arm/arm64: gsi routing support Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-09 8:22 ` [PATCH v2 1/7] KVM: api: introduce KVM_IRQ_ROUTING_EXTENDED_MSI Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-10 22:42 ` Andre Przywara 2015-07-10 22:42 ` Andre Przywara 2015-07-13 9:25 ` Eric Auger 2015-07-13 9:25 ` Eric Auger 2015-07-09 8:22 ` [PATCH v2 2/7] KVM: kvm_host: add devid in kvm_kernel_irq_routing_entry Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-09 8:22 ` [PATCH v2 3/7] KVM: irqchip: convey devid to kvm_set_msi Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-10 23:15 ` Andre Przywara 2015-07-10 23:15 ` Andre Przywara 2015-07-17 7:27 ` Pavel Fedin 2015-07-17 7:27 ` Pavel Fedin 2015-07-17 10:09 ` Paolo Bonzini 2015-07-17 10:09 ` Paolo Bonzini 2015-07-17 10:21 ` Pavel Fedin 2015-07-17 10:21 ` Pavel Fedin 2015-07-18 18:39 ` Eric Auger 2015-07-18 18:39 ` Eric Auger 2015-07-09 8:22 ` [PATCH v2 4/7] KVM: arm/arm64: enable irqchip routing Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-10 23:15 ` Andre Przywara 2015-07-10 23:15 ` Andre Przywara 2015-07-13 9:58 ` Eric Auger 2015-07-13 9:58 ` Eric Auger 2015-07-15 7:29 ` Pavel Fedin 2015-07-15 7:29 ` Pavel Fedin 2015-07-09 8:22 ` Eric Auger [this message] 2015-07-09 8:22 ` [PATCH v2 5/7] KVM: arm/arm64: build a default routing table Eric Auger 2015-07-09 8:22 ` [PATCH v2 6/7] KVM: arm/arm64: enable MSI routing Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-10 23:16 ` Andre Przywara 2015-07-10 23:16 ` Andre Przywara 2015-07-09 8:22 ` [PATCH v2 7/7] KVM: arm: implement kvm_set_msi by gsi direct mapping Eric Auger 2015-07-09 8:22 ` Eric Auger 2015-07-10 23:17 ` Andre Przywara 2015-07-10 23:17 ` Andre Przywara 2015-07-31 12:59 ` Eric Auger 2015-07-31 12:59 ` Eric Auger 2015-08-02 20:23 ` Andre Przywara 2015-08-02 20:23 ` Andre Przywara 2015-08-03 9:11 ` Eric Auger 2015-08-03 9:11 ` Eric Auger 2015-07-09 14:37 ` [PATCH v2 0/7] KVM: arm/arm64: gsi routing support Pavel Fedin 2015-07-09 14:37 ` Pavel Fedin 2015-07-09 15:25 ` Andre Przywara 2015-07-09 15:25 ` Andre Przywara 2015-07-09 15:52 ` Pavel Fedin 2015-07-09 15:52 ` Pavel Fedin 2015-07-09 17:11 ` Eric Auger 2015-07-09 17:11 ` Eric Auger 2015-07-09 18:08 ` Pavel Fedin 2015-07-09 18:08 ` Pavel Fedin
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