2 files changed, 15 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 49e755e..a8cecd0 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1119,6 +1119,11 @@ int kvm_vm_check_extension(KVMState *s, unsigned int extension)
     return ret;
 }
 
+/*
+ * We track the poisoned pages to be able to:
+ * - replace them on VM reset
+ * - block a migration for a VM with a poisoned page
+ */
 typedef struct HWPoisonPage {
     ram_addr_t ram_addr;
     QLIST_ENTRY(HWPoisonPage) list;
@@ -1152,6 +1157,11 @@ void kvm_hwpoison_page_add(ram_addr_t ram_addr)
     QLIST_INSERT_HEAD(&hwpoison_page_list, page, list);
 }
 
+bool kvm_hwpoisoned_mem(void)
+{
+    return !QLIST_EMPTY(&hwpoison_page_list);
+}
+
 static uint32_t adjust_ioeventfd_endianness(uint32_t val, uint32_t size)
 {
 #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c
index 1b37d9a..ca38172 100644
--- a/accel/stubs/kvm-stub.c
+++ b/accel/stubs/kvm-stub.c
@@ -124,3 +124,8 @@ uint32_t kvm_dirty_ring_size(void)
 {
     return 0;
 }
+
+bool kvm_hwpoisoned_mem(void)
+{
+    return false;
+}