diff options
| -rw-r--r-- | kvm-all.c | 3 | ||||
| -rw-r--r-- | qemu-barrier.h | 7 |
2 files changed, 9 insertions, 1 deletions
@@ -21,6 +21,7 @@ #include <linux/kvm.h> #include "qemu-common.h" +#include "qemu-barrier.h" #include "sysemu.h" #include "hw/hw.h" #include "gdbstub.h" @@ -730,7 +731,7 @@ void kvm_flush_coalesced_mmio_buffer(void) 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; } } diff --git a/qemu-barrier.h b/qemu-barrier.h new file mode 100644 index 0000000000..3bd1075d66 --- /dev/null +++ b/qemu-barrier.h @@ -0,0 +1,7 @@ +#ifndef __QEMU_BARRIER_H +#define __QEMU_BARRIER_H 1 + +/* FIXME: arch dependant, x86 version */ +#define smp_wmb() asm volatile("" ::: "memory") + +#endif |