Cc: "Michael S. Tsirkin" <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
Index: qemu/kvm-all.c
===================================================================
--- qemu.orig/kvm-all.c
+++ qemu/kvm-all.c
@@ -718,6 +718,9 @@ static int kvm_handle_io(uint16_t port,
return 1;
}
+/* FIXME: arch dependant, x86 version */
+#define smp_wmb() asm volatile("" ::: "memory")
+
void kvm_flush_coalesced_mmio_buffer(void)
{
#ifdef KVM_CAP_COALESCED_MMIO
@@ -730,7 +733,7 @@ void kvm_flush_coalesced_mmio_buffer(voi
ent = &ring->coalesced_mmio[ring->first];
cpu_physical_memory_write(ent->phys_addr, ent->data, ent->len);
- /* FIXME smp_wmb() */
+ smp_wmb();
ring->first = (ring->first + 1) % KVM_COALESCED_MMIO_MAX;
}
}
--
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