In case there is enough memory installed use a large ZoneHigh.
Signed-off-by: Gerd Hoffmann <[email protected]>
---
src/config.h | 3 ++-
src/malloc.c | 4 +++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/config.h b/src/config.h
index 93c8dbc2d530..9abe355b6c47 100644
--- a/src/config.h
+++ b/src/config.h
@@ -17,7 +17,8 @@
// Maximum number of map entries in the e820 map
#define BUILD_MAX_E820 32
// Space to reserve in high-memory for tables
-#define BUILD_MAX_HIGHTABLE (256*1024)
+#define BUILD_MIN_HIGHTABLE (256*1024)
+#define BUILD_MAX_HIGHTABLE (16*1024*1024)
// Largest supported externaly facing drive id
#define BUILD_MAX_EXTDRIVE 16
// Number of bytes the smbios may be and still live in the f-segment
diff --git a/src/malloc.c b/src/malloc.c
index 7fa50a85595b..553164d53a38 100644
--- a/src/malloc.c
+++ b/src/malloc.c
@@ -423,7 +423,7 @@ malloc_preinit(void)
// Populate temp high ram
u32 highram_start = 0;
- u32 highram_size = BUILD_MAX_HIGHTABLE;
+ u32 highram_size = BUILD_MIN_HIGHTABLE;
int i;
for (i=e820_count-1; i>=0; i--) {
struct e820entry *en = &e820_list[i];
@@ -434,6 +434,8 @@ malloc_preinit(void)
continue;
u32 s = en->start, e = end;
if (!highram_start) {
+ if (e > BUILD_MAX_HIGHTABLE * 16)
+ highram_size = BUILD_MAX_HIGHTABLE;
u32 newe = ALIGN_DOWN(e - highram_size, MALLOC_MIN_ALIGN);
if (newe <= e && newe >= s) {
highram_start = newe;
--
2.35.1
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