From: Jason Wang <jasowang@redhat.com>
To: mtosatti@redhat.com, avi@redhat.com, kvm@vger.kernel.org
Cc: glommer@redhat.com
Subject: [PATCH kvm-unit-test 1/6] Introduce memory barriers.
Date: Fri, 27 Aug 2010 13:49:11 +0800 [thread overview]
Message-ID: <20100827054911.7409.1538.stgit@FreeLancer> (raw)
In-Reply-To: <20100827054733.7409.63882.stgit@FreeLancer>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
lib/x86/smp.h | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/lib/x86/smp.h b/lib/x86/smp.h
index c2e7350..df5fdba 100644
--- a/lib/x86/smp.h
+++ b/lib/x86/smp.h
@@ -1,6 +1,10 @@
#ifndef __SMP_H
#define __SMP_H
+#define mb() asm volatile("mfence":::"memory")
+#define rmb() asm volatile("lfence":::"memory")
+#define wmb() asm volatile("sfence" ::: "memory")
+
struct spinlock {
int v;
};
next prev parent reply other threads:[~2010-08-27 5:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-27 5:49 [PATCH kvm-unit-test 0/6] Kvmclock test Jason Wang
2010-08-27 5:49 ` Jason Wang [this message]
2010-08-27 5:49 ` [PATCH kvm-unit-test 2/6] Introduce atomic operations Jason Wang
2010-08-27 11:39 ` Glauber Costa
2010-08-29 9:39 ` Avi Kivity
2010-08-27 5:49 ` [PATCH kvm-unit-test 3/6] Export tsc related helpers Jason Wang
2010-08-27 5:49 ` [PATCH kvm-unit-test 4/6] Introduce atol() Jason Wang
2010-08-27 5:49 ` [PATCH kvm-unit-test 5/6] Add a simple kvmclock driver Jason Wang
2010-08-27 11:31 ` Glauber Costa
2010-08-27 5:49 ` [PATCH kvm-unit-test 6/6] Add a test for kvm-clock Jason Wang
2010-08-27 11:27 ` Glauber Costa
2010-08-30 3:07 ` Jason Wang
2010-08-27 11:34 ` Glauber Costa
2010-08-30 3:27 ` Jason Wang
2010-08-28 1:58 ` Zachary Amsden
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