+#include "bios.h"
+#include "device_tree.h"
+
+extern boot_args *bootArgs;
+extern Node *gMemoryMapNode;
+
+/*
+ * Maximum number of boot drivers that can be loaded.
+ */
+#define NDRIVERS 500
+
+#define CONFIG_SIZE (12 * 4096)
+
+#define kMemoryMapCountMax 40
+
+/*
+ * PCI bus information.
+ */
+typedef struct _PCI_bus_info_t {
+ union {
+ struct {
+ unsigned char configMethod1 :1;
+ unsigned char configMethod2 :1;
+ unsigned char :2;
+ unsigned char specialCycle1 :1;
+ unsigned char specialCycle2 :1;
+ } s;
+ unsigned char d;
+ } u_bus;
+ unsigned char maxBusNum;
+ unsigned char majorVersion;
+ unsigned char minorVersion;
+ unsigned char BIOSPresent;
+} PCI_bus_info_t;
+
+typedef struct {
+ unsigned long address; // address where driver was loaded
+ unsigned long size; // number of bytes
+ unsigned long type; // driver type
+} driver_config_t;
+
+/*
+ * INT15, E820h - Query System Address Map.
+ *
+ * Documented in ACPI Specification Rev 2.0,
+ * Chapter 15 (System Address Map Interfaces).
+ */
+
+/*
+ * ACPI defined memory range types.
+ */
+enum {
+ kMemoryRangeUsable = 1, // RAM usable by the OS.
+ kMemoryRangeReserved = 2, // Reserved. (Do not use)
+ kMemoryRangeACPI = 3, // ACPI tables. Can be reclaimed.
+ kMemoryRangeNVS = 4, // ACPI NVS memory. (Do not use)
+
+ /* Undefined types should be treated as kMemoryRangeReserved */
+};
+
+typedef struct PrivateBootInfo {
+ int kernDev; // device kernel was fetched from
+
+ int convmem; // conventional memory
+ int extmem; // extended memory
+ int numBootDrivers; // number of drivers loaded
+ char bootFile[128]; // kernel file name
+
+ unsigned long memoryMapCount;
+ MemoryRange memoryMap[kMemoryMapCountMax];
+
+ PCI_bus_info_t pciInfo;
+
+ driver_config_t driverConfig[NDRIVERS];
+ char * configEnd; // pointer to end of config files
+ char config[CONFIG_SIZE];
+} PrivateBootInfo_t;
+
+extern PrivateBootInfo_t *bootInfo;
+
+#endif /* __BOOTSTRUCT_H */