disk: Set MAX_VOLUMES to 256 for UEFI ports

common/drivers/disk.s2.c

@@ -19,10 +19,10 @@
 #define DEFAULT_FASTEST_XFER_SIZE 64
 #define MAX_FASTEST_XFER_SIZE 512
 
-#define MAX_VOLUMES 64
-
 #if defined (BIOS)
 
+#define MAX_VOLUMES 64
+
 struct bios_drive_params {
     uint16_t buf_size;
     uint16_t info_flags;
@@ -307,6 +307,8 @@ void disk_create_index(void) {
 
 #if defined (UEFI)
 
+#define MAX_VOLUMES 256
+
 int disk_read_sectors(struct volume *volume, void *buf, uint64_t block, size_t count) {
     EFI_STATUS status;