---

yaml --- r: 258099 b: refs/heads/master c: fce92dc h: refs/heads/master i: 258097: 2613068 258095: 0d83c34 v: v3
git-mirror · Jul 24, 2011 · a8c589d · a8c589d
1 parent 3ffa38d
commit a8c589d
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Showing 4 changed files with 22 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c37079586f317d7e7f1a70d36f0e5177691c89c2
+refs/heads/master: fce92dce79dbf5fff39c7ac2fb149729d79b7a39
diff --git a/trunk/arch/x86/kvm/mmu.c b/trunk/arch/x86/kvm/mmu.c
@@ -2085,8 +2085,8 @@ static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,
 
 	slot = gfn_to_memslot_dirty_bitmap(vcpu, gfn, no_dirty_log);
 	if (!slot) {
-		get_page(bad_page);
-		return page_to_pfn(bad_page);
+		get_page(fault_page);
+		return page_to_pfn(fault_page);
 	}
 
 	hva = gfn_to_hva_memslot(slot, gfn);

diff --git a/trunk/include/linux/kvm_host.h b/trunk/include/linux/kvm_host.h
@@ -327,12 +327,17 @@ static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
 
 extern struct page *bad_page;
+extern struct page *fault_page;
+
 extern pfn_t bad_pfn;
+extern pfn_t fault_pfn;
 
 int is_error_page(struct page *page);
 int is_error_pfn(pfn_t pfn);
 int is_hwpoison_pfn(pfn_t pfn);
 int is_fault_pfn(pfn_t pfn);
+int is_noslot_pfn(pfn_t pfn);
+int is_invalid_pfn(pfn_t pfn);
 int kvm_is_error_hva(unsigned long addr);
 int kvm_set_memory_region(struct kvm *kvm,
 			  struct kvm_userspace_memory_region *mem,

diff --git a/trunk/virt/kvm/kvm_main.c b/trunk/virt/kvm/kvm_main.c
@@ -101,8 +101,8 @@ static bool largepages_enabled = true;
 static struct page *hwpoison_page;
 static pfn_t hwpoison_pfn;
 
-static struct page *fault_page;
-static pfn_t fault_pfn;
+struct page *fault_page;
+pfn_t fault_pfn;
 
 inline int kvm_is_mmio_pfn(pfn_t pfn)
 {
@@ -931,6 +931,18 @@ int is_fault_pfn(pfn_t pfn)
 }
 EXPORT_SYMBOL_GPL(is_fault_pfn);
 
+int is_noslot_pfn(pfn_t pfn)
+{
+	return pfn == bad_pfn;
+}
+EXPORT_SYMBOL_GPL(is_noslot_pfn);
+
+int is_invalid_pfn(pfn_t pfn)
+{
+	return pfn == hwpoison_pfn || pfn == fault_pfn;
+}
+EXPORT_SYMBOL_GPL(is_invalid_pfn);
+
 static inline unsigned long bad_hva(void)
 {
 	return PAGE_OFFSET;