KVM: irqchip: Convey devid to kvm_set_msi

on ARM, a devid field is populated in kvm_msi struct in case the
flag is set to KVM_MSI_VALID_DEVID. Let's propagate both flags and
devid field in kvm_kernel_irq_routing_entry.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
index 8db197bb6c7a..0c000546aedc 100644
--- a/virt/kvm/irqchip.c
+++ b/virt/kvm/irqchip.c
@@ -62,12 +62,14 @@ int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi)
 {
         struct kvm_kernel_irq_routing_entry route;
 
-        if (!irqchip_in_kernel(kvm) || msi->flags != 0)
+        if (!irqchip_in_kernel(kvm) || (msi->flags & ~KVM_MSI_VALID_DEVID))
                 return -EINVAL;
 
         route.msi.address_lo = msi->address_lo;
         route.msi.address_hi = msi->address_hi;
         route.msi.data = msi->data;
+        route.msi.flags = msi->flags;
+        route.msi.devid = msi->devid;
 
         return kvm_set_msi(&route, kvm, KVM_USERSPACE_IRQ_SOURCE_ID, 1, false);
 }