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1d93f0f03d
Define barrier() as optimization barrier and replace (potentially
unreliable) 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>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
10 lines
226 B
C
10 lines
226 B
C
#ifndef __QEMU_BARRIER_H
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#define __QEMU_BARRIER_H 1
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/* FIXME: arch dependant, x86 version */
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#define smp_wmb() asm volatile("" ::: "memory")
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/* Compiler barrier */
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#define barrier() asm volatile("" ::: "memory")
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#endif
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