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kvm: Don't abort on kvm_irqchip_add_msi_route()

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Anyone using these functions has to be prepared that irqchip
support may not be present.  It shouldn't be up to the core
code to determine whether this is a fatal error.  Currently
code written as:

virq = kvm_irqchip_add_msi_route(...)
if (virq < 0) {
    <slow path>
} else {
    <fast path>
}

works on x86 with and without kvm irqchip enabled, works
without kvm support compiled in, but aborts() on !x86 with
kvm support.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Alex Williamson 2012-06-25 09:40:39 -06:00 • committed by Marcelo Tosatti
parent 71ea2e0161
commit df410675e5
1 changed files with 1 additions and 1 deletions
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2
kvm-all.c
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@ -1142,7 +1142,7 @@ int kvm_irqchip_send_msi(KVMState *s, MSIMessage msg)
int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
{
abort();
return -ENOSYS;
}
static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign)