From d750ea28865dbff6a73444358d189dd811c68c50 Mon Sep 17 00:00:00 2001
From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Date: Mon, 28 Nov 2011 20:43:18 +0800
Subject: [PATCH] KVM: MMU: remove oos_shadow parameter
The unsync code should be stable now, maybe it is the time to remove this
parameter to cleanup the code a little bit
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
Documentation/kernel-parameters.txt | 3 ---
arch/x86/kvm/mmu.c | 5 -----
2 files changed, 8 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 81c287fad79d6..6e7cce096e6bc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1178,9 +1178,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
Default is 0 (don't ignore, but inject #GP)
- kvm.oos_shadow= [KVM] Disable out-of-sync shadow paging.
- Default is 1 (enabled)
-
kvm.mmu_audit= [KVM] This is a R/W parameter which allows audit
KVM MMU at runtime.
Default is 0 (off)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 262a3af1f0ec8..b1178d1bb8f5a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -93,9 +93,6 @@ static int dbg = 0;
module_param(dbg, bool, 0644);
#endif
-static int oos_shadow = 1;
-module_param(oos_shadow, bool, 0644);
-
#ifndef MMU_DEBUG
#define ASSERT(x) do { } while (0)
#else
@@ -2196,8 +2193,6 @@ static int mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn,
return 1;
if (!need_unsync && !s->unsync) {
- if (!oos_shadow)
- return 1;
need_unsync = true;
}
}
--
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