From: Anton Blanchard anton@ozlabs.org
commit 89c140bbaeee7a55ed0360a88f294ead2b95201b upstream.
Booting with a 4GB LMB size causes us to panic:
qemu-system-ppc64: OS terminated: OS panic: Memory block size not suitable: 0x0
Fix pseries_memory_block_size() to handle 64 bit LMBs.
Cc: stable@vger.kernel.org Signed-off-by: Anton Blanchard anton@ozlabs.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20200715000820.1255764-1-anton@ozlabs.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/powerpc/platforms/pseries/hotplug-memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -30,7 +30,7 @@ static bool rtas_hp_event; unsigned long pseries_memory_block_size(void) { struct device_node *np; - unsigned int memblock_size = MIN_MEMORY_BLOCK_SIZE; + u64 memblock_size = MIN_MEMORY_BLOCK_SIZE; struct resource r;
np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");