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# Date Author Comment
463ce4ae 11/01/2011 06:50 pm Eric Sunshine

qemu-barrier: Fix build failure on PowerPC Mac OS X

qemu-barrier.h tests if macro powerpc is defined, however, the
preprocessor on PowerPC Mac OS X defines only POWERPC, not
powerpc. Resolve by testing instead for qemu-provided _ARCH_PPC.

Signed-off-by: Eric Sunshine <>...
e2251708 09/23/2011 07:51 pm David Gibson

Barriers in qemu-barrier.h should not be x86 specific

qemu-barrier.h contains a few macros implementing memory barrier
primitives used in several places throughout qemu. However, apart
from the compiler-only barrier, the defined wmb() is correct only for...
1d93f0f0 07/22/2010 06:52 am Jan Kiszka

Introduce proper compiler barrier

Define barrier() as optimization barrier and replace (potentially
unreliable) asm("") fences.

Signed-off-by: Jan Kiszka <>
Acked-by: Paolo Bonzini <>
Reviewed-by: Marcelo Tosatti <>...
85199474 02/22/2010 07:04 pm Marcelo Tosatti

kvm-all.c: define smp_wmb and use it for coalesced mmio

Acked-by: "Michael S. Tsirkin" <>
Signed-off-by: Marcelo Tosatti <>
Signed-off-by: Avi Kivity <>