[PATCH 36/60] kvm: Add plane_level to kvm_kernel_irq_routing_entry
From: Jörg Rödel <joro@8bytes.org>
Date: 2026-06-08 14:43:21
Also in:
kvm, kvm-riscv, kvmarm, linux-mips, lkml, loongarch
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine (kvm), kernel virtual machine for arm64 (kvm/arm64), kernel virtual machine for loongarch (kvm/loongarch), kernel virtual machine for powerpc (kvm/powerpc), kernel virtual machine for risc-v (kvm/riscv), kernel virtual machine for x86 (kvm/x86), linux for powerpc (32-bit and 64-bit), loongarch, risc-v architecture, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Catalin Marinas, Will Deacon, Paolo Bonzini, Marc Zyngier, Oliver Upton, Tianrui Zhao, Bibo Mao, Huacai Chen, Madhavan Srinivasan, Anup Patel, Sean Christopherson, Michael Ellerman, Paul Walmsley, Palmer Dabbelt, Albert Ou, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
From: Joerg Roedel <redacted> Track the target plane-level of MSI irqs in struct kvm_kernel_irq_routing_entry. This will be used to send MSI IRQs to the right plane-level once planes are supported. Signed-off-by: Joerg Roedel <redacted> --- arch/arm64/kvm/vgic/vgic-irqfd.c | 1 + arch/loongarch/kvm/irqfd.c | 1 + arch/powerpc/kvm/mpic.c | 1 + arch/riscv/kvm/vm.c | 1 + arch/x86/kvm/irq.c | 1 + include/linux/kvm_host.h | 1 + virt/kvm/irqchip.c | 1 + 7 files changed, 7 insertions(+)
diff --git a/arch/arm64/kvm/vgic/vgic-irqfd.c b/arch/arm64/kvm/vgic/vgic-irqfd.c
index b9b86e3a6c86..479b896c8954 100644
--- a/arch/arm64/kvm/vgic/vgic-irqfd.c
+++ b/arch/arm64/kvm/vgic/vgic-irqfd.c@@ -57,6 +57,7 @@ int kvm_set_routing_entry(struct kvm *kvm, e->msi.data = ue->u.msi.data; e->msi.flags = ue->flags; e->msi.devid = ue->u.msi.devid; + e->msi.plane_level = 0; break; default: goto out;
diff --git a/arch/loongarch/kvm/irqfd.c b/arch/loongarch/kvm/irqfd.c
index f4f953b22419..50f0c32df46c 100644
--- a/arch/loongarch/kvm/irqfd.c
+++ b/arch/loongarch/kvm/irqfd.c@@ -60,6 +60,7 @@ int kvm_set_routing_entry(struct kvm *kvm, e->msi.address_lo = ue->u.msi.address_lo; e->msi.address_hi = ue->u.msi.address_hi; e->msi.data = ue->u.msi.data; + e->msi.plane_level = 0; return 0; default: return -EINVAL;
diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c
index 3070f36d9fb8..0f568f5fff8b 100644
--- a/arch/powerpc/kvm/mpic.c
+++ b/arch/powerpc/kvm/mpic.c@@ -1841,6 +1841,7 @@ int kvm_set_routing_entry(struct kvm *kvm, e->msi.address_lo = ue->u.msi.address_lo; e->msi.address_hi = ue->u.msi.address_hi; e->msi.data = ue->u.msi.data; + e->msi.plane_level = 0; break; default: goto out;
diff --git a/arch/riscv/kvm/vm.c b/arch/riscv/kvm/vm.c
index a9f083feeb76..f518247e699b 100644
--- a/arch/riscv/kvm/vm.c
+++ b/arch/riscv/kvm/vm.c@@ -138,6 +138,7 @@ int kvm_set_routing_entry(struct kvm *kvm, e->msi.data = ue->u.msi.data; e->msi.flags = ue->flags; e->msi.devid = ue->u.msi.devid; + e->msi.plane_level = 0; break; default: goto out;
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c
index 9519fec09ee6..b7e08eddb765 100644
--- a/arch/x86/kvm/irq.c
+++ b/arch/x86/kvm/irq.c@@ -332,6 +332,7 @@ int kvm_set_routing_entry(struct kvm *kvm, e->msi.address_lo = ue->u.msi.address_lo; e->msi.address_hi = ue->u.msi.address_hi; e->msi.data = ue->u.msi.data; + e->msi.plane_level = 0; if (kvm_msi_route_invalid(kvm, e)) return -EINVAL;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e3611e6cc3e4..16dcca3132d3 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h@@ -782,6 +782,7 @@ struct kvm_kernel_irq_routing_entry { u32 data; u32 flags; u32 devid; + unsigned plane_level; } msi; struct kvm_s390_adapter_int adapter; struct kvm_hv_sint hv_sint;
diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 462c70621247..ae47e56176f1 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c@@ -57,6 +57,7 @@ int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi) route.msi.data = msi->data; route.msi.flags = msi->flags; route.msi.devid = msi->devid; + route.msi.plane_level = 0; return kvm_set_msi(&route, kvm, KVM_USERSPACE_IRQ_SOURCE_ID, 1, false); }
--
2.53.0