Some work on the boot disk identification: the kernel_args structure has

now fields that carry information about the boot disk and partition.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9956 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/boot/disk_identifier.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef KERNEL_BOOT_DISK_IDENTIFIER_H
+#define KERNEL_BOOT_DISK_IDENTIFIER_H
+
+
+#include <SupportDefs.h>
+
+
+enum bus_types {
+	UNKNOWN_BUS,
+	LEGACY_BUS,
+	PCI_BUS,
+};
+
+enum device_types {
+	UNKNOWN_DEVICE,
+	ATA_DEVICE,
+	ATAPI_DEVICE,
+	SCSI_DEVICE,
+	USB_DEVICE,
+	FIREWIRE_DEVICE,
+	FIBRE_DEVICE,
+};
+
+typedef struct disk_identifier {
+	int32				bus_type;
+	int32				device_type;
+
+	union {
+		struct {
+			uint16		base_address;
+		} legacy;
+		struct {
+			uint8		bus;
+			uint8		slot;
+			uint8		function;
+		} pci;
+	} bus;
+	union {
+		struct {
+			bool		master;
+		} ata;
+		struct {
+			bool		master;
+			uint8		logical_unit;
+		} atapi;
+		struct {
+			uint8		logical_unit;
+		} scsi;
+		struct {
+			uint8		tbd;
+		} usb;
+		struct {
+			uint64		guid;
+		} firewire;
+		struct {
+			uint64		wwd;
+		} fibre;
+		struct {
+			off_t		size;
+			struct {
+				off_t	offset;
+				uint32	sum;
+			} check_sums[5];
+		} unknown;
+	} device;
+} disk_identifier;
+
+#endif	/* KERNEL_BOOT_DISK_IDENTIFIER_H */

headers/private/kernel/boot/kernel_args.h

@@ -1,10 +1,10 @@
 /* 
-** Copyright 2002-2004, The Haiku Team. All rights reserved.
-** Distributed under the terms of the Haiku License.
-**
-** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
+ * Copyright 2002-2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+ */
 #ifndef KERNEL_BOOT_KERNEL_ARGS_H
 #define KERNEL_BOOT_KERNEL_ARGS_H
 
@@ -12,6 +12,7 @@
 #include <SupportDefs.h>
 
 #include <boot/elf.h>
+#include <boot/disk_identifier.h>
 #include <platform_kernel_args.h>
 #include <arch_kernel_args.h>
 
@@ -41,6 +42,11 @@ typedef struct kernel_args {
 	uint32		num_cpus;
 	addr_range	cpu_kstack[MAX_BOOT_CPUS];
 
+	struct {
+		disk_identifier identifier;
+		off_t	partition_offset;
+	} boot_disk;
+
 	struct {
 		bool	enabled;
 		int32	width;

headers/private/kernel/boot/platform.h

@@ -1,7 +1,7 @@
 /*
-** Copyright 2003, Axel Dörfler, [email protected]. All rights reserved.
-** Distributed under the terms of the Haiku License.
-*/
+ * Copyright 2003-2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
 #ifndef KERNEL_BOOT_PLATFORM_H
 #define KERNEL_BOOT_PLATFORM_H
 
@@ -57,6 +57,7 @@ extern status_t platform_get_boot_device(struct stage2_args *args, Node **_devic
 extern status_t platform_add_block_devices(struct stage2_args *args, NodeList *devicesList);
 extern status_t platform_get_boot_partition(struct stage2_args *args, Node *bootDevice,
 					NodeList *partitions, boot::Partition **_partition);
+extern status_t platform_register_boot_device(Node *device);
 
 /* menu functions */
 

headers/private/kernel/boot/platform/bios_ia32/bios_drive.h

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef KERNEL_BOOT_PLATFORM_BIOS_IA32_BIOS_DRIVE_H
+#define KERNEL_BOOT_PLATFORM_BIOS_IA32_BIOS_DRIVE_H
+
+
+#include <boot/disk_identifier.h>
+
+
+typedef struct bios_drive {
+	struct bios_drive	*next;
+	uint16				drive_number;
+	disk_identifier		identifier;
+} bios_drive;
+
+#endif	/* KERNEL_BOOT_PLATFORM_BIOS_IA32_BIOS_DRIVE_H */

headers/private/kernel/boot/platform/bios_ia32/platform_kernel_args.h

@@ -1,7 +1,7 @@
 /*
-** Copyright 2003-2004, Axel Dörfler, [email protected]. All rights reserved.
-** Distributed under the terms of the Haiku License.
-*/
+ * Copyright 2003-2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
 #ifndef KERNEL_BOOT_PLATFORM_BIOS_IA32_KERNEL_ARGS_H
 #define KERNEL_BOOT_PLATFORM_BIOS_IA32_KERNEL_ARGS_H
 
@@ -9,6 +9,9 @@
 #	error This file is included from <boot/kernel_args.h> only
 #endif
 
+#include <bios_drive.h>
+
+
 // must match SMP_MAX_CPUS in arch_smp.h
 #define MAX_BOOT_CPUS 4
 #define MAX_PHYSICAL_MEMORY_RANGE 4
@@ -18,7 +21,10 @@
 #define MAX_SERIAL_PORTS 4
 
 typedef struct {
-	uint16	serial_base_ports[MAX_SERIAL_PORTS];
+	uint16		serial_base_ports[MAX_SERIAL_PORTS];
+
+	uint16		boot_drive_number;
+	bios_drive	*drives;	// this does not contain the boot drive
 } platform_kernel_args;
 
 #endif	/* KERNEL_BOOT_PLATFORM_BIOS_IA32_KERNEL_ARGS_H */

headers/private/kernel/boot/vfs.h

@@ -1,7 +1,7 @@
 /*
-** Copyright 2003, Axel Dörfler, [email protected]. All rights reserved.
-** Distributed under the terms of the OpenBeOS License.
-*/
+ * Copyright 2003-2004, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
 #ifndef KERNEL_BOOT_VFS_H
 #define KERNEL_BOOT_VFS_H
 
@@ -78,12 +78,14 @@ class ConsoleNode : public Node {
 /* function prototypes */
 
 extern status_t vfs_init(stage2_args *args);
-extern void register_boot_file_system(Directory *directory);
+extern status_t register_boot_file_system(Directory *directory);
 extern Directory *get_boot_file_system(stage2_args *args);
 extern status_t mount_file_systems(stage2_args *args);
 extern int open_node(Node *node, int mode);
 extern int open_from(Directory *directory, const char *path, int mode);
 
+extern Node *get_node_from(int fd);
+
 extern status_t add_partitions_for(int fd, bool mountFileSystems);
 extern status_t add_partitions_for(Node *device, bool mountFileSystems);