KVM: MMU: remove 'clear_unsync' parameter

Remove it since we can judge it by using sp->unsync

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 3cc80c4..1452478 100644 (file)
--- 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 5910492..3db0cd4 100644 (file)
--- 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 (file)
--- 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;