We clamp down ram_size to match the sclp increment size. We do
not do the same for maxram_size, which means for large guests
with some sizes (e.g. -m 50000) maxram_size differs from ram_size.
This can break other code (e.g. CMMA migration) which uses maxram_size
to calculate the number of pages and then throws some errors.
Fixes: 82fab5c5b90e468f3e9d54c ("s390x/sclp: remove memory hotplug support")
Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com>
CC: qemu-sta...@nongnu.org
CC: David Hildenbrand <da...@redhat.com>
---
hw/s390x/sclp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
index bd2a024..4510a80 100644
--- a/hw/s390x/sclp.c
+++ b/hw/s390x/sclp.c
@@ -320,6 +320,7 @@ static void sclp_memory_init(SCLPDevice *sclp)
initial_mem = initial_mem >> increment_size << increment_size;
machine->ram_size = initial_mem;
+ machine->maxram_size = initial_mem;
/* let's propagate the changed ram size into the global variable. */
ram_size = initial_mem;
}
--
1.8.3.1
