From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>, KVM <kvm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v3 4/6] KVM: MMU: remove 'clear_unsync' parameter
Date: Fri, 19 Nov 2010 17:04:03 +0800 [thread overview]
Message-ID: <4CE63D83.5010507@cn.fujitsu.com> (raw)
In-Reply-To: <4CE63CF4.80502@cn.fujitsu.com>
Remove it since we can jude it by using sp->unsync
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/mmu.c | 8 ++++----
arch/x86/kvm/paging_tmpl.h | 5 ++---
3 files changed, 7 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b04c0fa..ce8c1e4 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -250,7 +250,7 @@ struct kvm_mmu {
void (*prefetch_page)(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *page);
int (*sync_page)(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *sp, bool clear_unsync);
+ struct kvm_mmu_page *sp);
void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
hpa_t root_hpa;
int root_level;
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index dc64cd6..d878dd1 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1156,7 +1156,7 @@ static void nonpaging_prefetch_page(struct kvm_vcpu *vcpu,
}
static int nonpaging_sync_page(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *sp, bool clear_unsync)
+ struct kvm_mmu_page *sp)
{
return 1;
}
@@ -1286,7 +1286,7 @@ static int __kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
if (clear_unsync)
kvm_unlink_unsync_page(vcpu->kvm, sp);
- if (vcpu->arch.mmu.sync_page(vcpu, sp, clear_unsync)) {
+ if (vcpu->arch.mmu.sync_page(vcpu, sp)) {
kvm_mmu_prepare_zap_page(vcpu->kvm, sp, invalid_list);
return 1;
}
@@ -1327,12 +1327,12 @@ static void kvm_sync_pages(struct kvm_vcpu *vcpu, gfn_t gfn)
continue;
WARN_ON(s->role.level != PT_PAGE_TABLE_LEVEL);
+ kvm_unlink_unsync_page(vcpu->kvm, s);
if ((s->role.cr4_pae != !!is_pae(vcpu)) ||
- (vcpu->arch.mmu.sync_page(vcpu, s, true))) {
+ (vcpu->arch.mmu.sync_page(vcpu, s))) {
kvm_mmu_prepare_zap_page(vcpu->kvm, s, &invalid_list);
continue;
}
- kvm_unlink_unsync_page(vcpu->kvm, s);
flush = true;
}
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 57619ed..60f00db 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -740,8 +740,7 @@ static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
* - The spte has a reference to the struct page, so the pfn for a given gfn
* can't change unless all sptes pointing to it are nuked first.
*/
-static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
- bool clear_unsync)
+static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
{
int i, offset, nr_present;
bool host_writable;
@@ -781,7 +780,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
u64 nonpresent;
if (rsvd_bits_set || is_present_gpte(gpte) ||
- !clear_unsync)
+ sp->unsync)
nonpresent = shadow_trap_nonpresent_pte;
else
nonpresent = shadow_notrap_nonpresent_pte;
--
1.7.0.4
next prev parent reply other threads:[~2010-11-19 8:59 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-19 9:01 [PATCH v3 1/6] KVM: MMU: fix forgot flush tlbs on sync_page path Xiao Guangrong
2010-11-19 9:02 ` [PATCH v3 2/6] KVM: MMU: don't drop spte if overwrite it from W to RO Xiao Guangrong
2010-11-19 9:03 ` [PATCH v3 3/6] KVM: MMU: rename 'reset_host_protection' to 'host_writable' Xiao Guangrong
2010-11-19 9:04 ` Xiao Guangrong [this message]
2010-11-19 9:04 ` [PATCH v3 5/6] KVM: MMU: abstract invalid guest pte mapping Xiao Guangrong
2010-11-22 9:28 ` Avi Kivity
2010-11-22 10:18 ` Xiao Guangrong
2010-11-22 10:17 ` Avi Kivity
2010-11-23 3:08 ` Xiao Guangrong
2010-11-19 9:05 ` [PATCH v3 6/6] KVM: MMU: delay flush all tlbs on sync_page path Xiao Guangrong
2010-11-19 16:11 ` Marcelo Tosatti
2010-11-22 3:45 ` Xiao Guangrong
2010-11-22 14:19 ` Marcelo Tosatti
2010-11-22 21:46 ` Marcelo Tosatti
2010-11-23 3:13 ` Xiao Guangrong
2010-11-26 1:37 ` [PATCH v3 1/6] KVM: MMU: fix forgot flush " Xiao Guangrong
2010-11-26 14:29 ` Marcelo Tosatti
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