Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/25582
Change subject: lib/memrange: Introduce method to clone memrange ......................................................................
lib/memrange: Introduce method to clone memrange
Add a new method to clone an existing memrange with all of its entries. Required for new bootmem type LB_MEM_RAM_DONT_OVERLAP.
Change-Id: I64b27bf2611ca310385ef680f030a3e4aa0c2680 Signed-off-by: Patrick Rudolph patrick.rudolph@9elements.com --- M src/include/memrange.h M src/lib/memrange.c 2 files changed, 19 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/82/25582/1
diff --git a/src/include/memrange.h b/src/include/memrange.h index 46a992a..7f42aa2 100644 --- a/src/include/memrange.h +++ b/src/include/memrange.h @@ -98,6 +98,9 @@ unsigned long mask, unsigned long match, unsigned long tag);
+/* Clone a memrange. The new memrange has the same entries as the old one. */ +void memranges_clone(struct memranges *newranges, struct memranges *oldranges); + /* Remove and free all entries within the memranges structure. */ void memranges_teardown(struct memranges *ranges);
diff --git a/src/lib/memrange.c b/src/lib/memrange.c index d3cda12..96d7524 100644 --- a/src/lib/memrange.c +++ b/src/lib/memrange.c @@ -310,6 +310,22 @@ memranges_add_resources(ranges, mask, match, tag); }
+/* Clone a memrange. The new memrange has the same entries as the old one. */ +void memranges_clone(struct memranges *newranges, struct memranges *oldranges) +{ + struct range_entry *r, *cur; + struct range_entry **prev_ptr; + + memranges_init_empty(newranges, NULL, 0); + + prev_ptr = &newranges->entries; + memranges_each_entry(r, oldranges) { + cur = range_list_add(newranges, prev_ptr, r->begin, r->end, + r->tag); + prev_ptr = &cur->next; + } +} + void memranges_teardown(struct memranges *ranges) { while (ranges->entries != NULL) {