[PATCH 1/2] qemu-kvm: msix table update thinko fix

["Michael S. Tsirkin" <mst@xxxxxxxxxx>]

When updating msi irq routing entries, we should memcpy the new entry
over the old one. Current code gets it wrong, and only works because
it's uncommon for guests to change MSI tables.

Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
 qemu-kvm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/qemu-kvm.c b/qemu-kvm.c
index 60e5eac..cebaa65 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -1552,7 +1552,7 @@ int kvm_update_routing_entry(kvm_context_t kvm,
             if (e->u.msi.address_lo == entry->u.msi.address_lo &&
                 e->u.msi.address_hi == entry->u.msi.address_hi &&
                 e->u.msi.data == entry->u.msi.data) {
-                memcpy(&e->u.msi, &entry->u.msi, sizeof e->u.msi);
+                memcpy(&e->u.msi, &newentry->u.msi, sizeof e->u.msi);
                 return 0;
             }
             break;
-- 
1.6.2.5

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