Changeset 6188fee in mainline

Timestamp:

2023-02-26T11:24:51Z (21 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

deed510

Parents:

65f3117

Message:

Exclude boot allocations in frame allocator

I think some platforms only worked by pure luck without this.
Particularly ppc32, on which this luck was broken by previous
commit.

Location:

kernel

Files:

• arch/mips32/src/mm/frame.c (modified) (1 diff)
• generic/src/mm/frame.c (modified) (1 diff)

kernel/arch/mips32/src/mm/frame.c

@@ -111 +111 @@
         if (overlaps(frame << ZERO_PAGE_WIDTH, ZERO_PAGE_SIZE,
             KA2PA(config.base), config.kernel_size))
+                return false;
+
+        /* Boot allocations */
+        if (overlaps(frame << ZERO_PAGE_WIDTH, ZERO_PAGE_SIZE,
+            KA2PA(ballocs.base), ballocs.size))
                 return false;
 

kernel/generic/src/mm/frame.c

@@ -752 +752 @@
                                         continue;
 
+                                if (overlaps(addr, PFN2ADDR(confcount),
+                                    KA2PA(ballocs.base), ballocs.size))
+                                        continue;
+
                                 bool overlap = false;
                                 for (size_t i = 0; i < init.cnt; i++) {