From 01c36195d6ed421ab913937c03ae16d2e0cdff38 Mon Sep 17 00:00:00 2001 From: Yi Min Zhao Date: Tue, 5 Sep 2017 12:12:59 +0200 Subject: [PATCH] s390x/pci: fixup ind_offset of msix routing entry 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 Message-Id: <1504606380-49341-3-git-send-email-zyimin@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck --- 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 1130a391d4..375369fd1c 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -2436,14 +2436,12 @@ 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; }