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Introduce proper compiler barrier
Define barrier() as optimization barrier and replace (potentiallyunreliable) asm("") fences.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Acked-by: Paolo Bonzini <pbonzini@redhat.com>Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>...
kvm-all.c: define smp_wmb and use it for coalesced mmio
Acked-by: "Michael S. Tsirkin" <mst@redhat.com>Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>Signed-off-by: Avi Kivity <avi@redhat.com>