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KVM: MMU: remove oos_shadow parameter

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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>
This commit is contained in:
Xiao Guangrong 2011-11-28 20:43:18 +08:00 committed by Avi Kivity
parent e459e3228d
commit d750ea2886
2 changed files with 0 additions and 8 deletions
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3
Documentation/kernel-parameters.txt
View File

@ -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)

5
arch/x86/kvm/mmu.c
View File

@ -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;
}
}