Kevin Pedretti: memory calculation fix

diff --git a/palacios/src/devices/nvram.c b/palacios/src/devices/nvram.c
index a8bfc53..4e9527b 100644 (file)
--- a/palacios/src/devices/nvram.c
+++ b/palacios/src/devices/nvram.c
@@ -462,7 +462,7 @@ static void set_memory_size(struct nvram_internal * nvram, addr_t bytes) {
 
   {
     // Set the extended memory beyond 16 MB in 64k chunks
-    uint16_t mem_chunks = bytes * (1024 / 64);
+    uint16_t mem_chunks = (bytes - (1024 * 1024 * 16)) / (1024 * 64);
     nvram->mem_state[NVRAM_REG_AMI_BIG_MEMORY_HIGH] = (mem_chunks >> 8) & 0x00ff;
     nvram->mem_state[NVRAM_REG_AMI_BIG_MEMORY_LOW] = mem_chunks & 0x00ff;
   }