linux-kernel - [PATCH v3 2/6] KVM: hide KVM_MEMSLOT

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Message-ID: <4FD6ADC2.2030402@linux.vnet.ibm.com>
Date:	Tue, 12 Jun 2012 10:47:30 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
CC:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: [PATCH v3 2/6] KVM: hide KVM_MEMSLOT_INVALID from userspace

Quote Avi's comment:
| KVM_MEMSLOT_INVALID is actually an internal symbol, not used by
| userspace.  Please move it to kvm_host.h.

Also, move KVM_MEMSLOT_INVALID to the highest bit

Signed-off-by: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
---
 include/linux/kvm.h      |    1 -
 include/linux/kvm_host.h |    2 ++
 2 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 2ce09aa..dc3aa2a 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -103,7 +103,6 @@ struct kvm_userspace_memory_region {

 /* for kvm_memory_region::flags */
 #define KVM_MEM_LOG_DIRTY_PAGES  1UL
-#define KVM_MEMSLOT_INVALID      (1UL << 1)

 /* for KVM_IRQ_LINE */
 struct kvm_irq_level {
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 27ac8a4..cf6bb58 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -34,6 +34,8 @@
 #define KVM_MMIO_SIZE 8
 #endif

+#define KVM_MEMSLOT_INVALID	(1UL << 31)
+
 /*
  * If we support unaligned MMIO, at most one fragment will be split into two:
  */
-- 
1.7.7.6

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