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[Qemu-devel] [PATCH v2 2/3] s390x/pci: fixup ind_offset of msix routing
From: |
Yi Min Zhao |
Subject: |
[Qemu-devel] [PATCH v2 2/3] s390x/pci: fixup ind_offset of msix routing entry |
Date: |
Fri, 1 Sep 2017 06:22:57 +0200 |
The guest uses the mpcifc instruction to register the aibvo of a zpci
device, which is the starting offset of indicators in the indicator
area and thus remains constant. Each msix vector is an offset from the
aibvo. When we map a msix route to an adapter route, we should not
modify the starting offset, but instead add the vector to the starting
offset to get the absolute offset in the specific route.
Signed-off-by: Yi Min Zhao <address@hidden>
---
target/s390x/kvm.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index 3d490c5e4b..21ce06966c 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -2545,14 +2545,12 @@ int kvm_arch_fixup_msi_route(struct
kvm_irq_routing_entry *route,
return -ENODEV;
}
- pbdev->routes.adapter.ind_offset = vec;
-
route->type = KVM_IRQ_ROUTING_S390_ADAPTER;
route->flags = 0;
route->u.adapter.summary_addr = pbdev->routes.adapter.summary_addr;
route->u.adapter.ind_addr = pbdev->routes.adapter.ind_addr;
route->u.adapter.summary_offset = pbdev->routes.adapter.summary_offset;
- route->u.adapter.ind_offset = pbdev->routes.adapter.ind_offset;
+ route->u.adapter.ind_offset = pbdev->routes.adapter.ind_offset + vec;
route->u.adapter.adapter_id = pbdev->routes.adapter.adapter_id;
return 0;
}
--
2.11.0 (Apple Git-81)
- [Qemu-devel] [PATCH v2 0/3] three zpci patches, Yi Min Zhao, 2017/09/01
- [Qemu-devel] [PATCH v2 2/3] s390x/pci: fixup ind_offset of msix routing entry,
Yi Min Zhao <=
- [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Yi Min Zhao, 2017/09/01
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Cornelia Huck, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Yi Min Zhao, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Cornelia Huck, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Yi Min Zhao, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Cornelia Huck, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Yi Min Zhao, 2017/09/05
- Re: [Qemu-devel] [PATCH v2 1/3] s390x/pci: remove idx from msix msg data, Cornelia Huck, 2017/09/05
[Qemu-devel] [PATCH v2 3/3] s390x/pci: add iommu replay callback, Yi Min Zhao, 2017/09/01