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pc: kvm: check if KVM has free memory slots to avoid abort()

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When more memory devices are used than available
KVM memory slots, QEMU crashes with:

kvm_alloc_slot: no free slot available
Aborted (core dumped)

Fix this by checking that KVM has a free slot before
attempting to map memory in guest address space.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2014-10-31 16:38:32 +00:00 • committed by Michael S. Tsirkin
parent c409572678
commit b8865591d4
4 changed files with 28 additions and 1 deletions
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5
kvm-stub.c
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@ -147,4 +147,9 @@ int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
{
return -ENOSYS;
}
bool kvm_has_free_slot(MachineState *ms)
{
return false;
}
#endif