3 files changed, 49 insertions, 2 deletions
diff --git a/include/qemu/range.h b/include/qemu/range.h
index 7e2b1cc447..205e1da76d 100644
--- a/include/qemu/range.h
+++ b/include/qemu/range.h
@@ -217,6 +217,20 @@ static inline int ranges_overlap(uint64_t first1, uint64_t len1,
     return !(last2 < first1 || last1 < first2);
 }
 
+/*
+ * Return -1 if @a < @b, 1 @a > @b, and 0 if they touch or overlap.
+ * Both @a and @b must not be empty.
+ */
+int range_compare(Range *a, Range *b);
+
 GList *range_list_insert(GList *list, Range *data);
 
+/*
+ * Inverse an array of sorted ranges over the [low, high] span, ie.
+ * original ranges becomes holes in the newly allocated inv_ranges
+ */
+void range_inverse_array(GList *in_ranges,
+                         GList **out_ranges,
+                         uint64_t low, uint64_t high);
+
 #endif
diff --git a/include/qemu/reserved-region.h b/include/qemu/reserved-region.h
new file mode 100644
index 0000000000..8e6f0a97e2
--- /dev/null
+++ b/include/qemu/reserved-region.h
@@ -0,0 +1,32 @@
+/*
+ * QEMU ReservedRegion helpers
+ *
+ * Copyright (c) 2023 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_RESERVED_REGION_H
+#define QEMU_RESERVED_REGION_H
+
+#include "exec/memory.h"
+
+/*
+ * Insert a new region into a sorted list of reserved regions. In case
+ * there is overlap with existing regions, the new added region has
+ * higher priority and replaces the overlapped segment.
+ */
+GList *resv_region_list_insert(GList *list, ReservedRegion *reg);
+
+#endif
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index e24a1099e4..869f84af09 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -78,9 +78,10 @@ typedef struct {
                  "%02hhx%02hhx-" \
                  "%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx"
 
-#define UUID_FMT_LEN 36
-
 #define UUID_NONE "00000000-0000-0000-0000-000000000000"
+QEMU_BUILD_BUG_ON(sizeof(UUID_NONE) - 1 != 36);
+
+#define UUID_STR_LEN sizeof(UUID_NONE)
 
 void qemu_uuid_generate(QemuUUID *out);