1 files changed, 127 insertions, 0 deletions
diff --git a/i386/x15/boot.h b/i386/x15/boot.h
new file mode 100644
index 0000000..ab85be0
--- /dev/null
+++ b/i386/x15/boot.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2010-2014 Richard Braun.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _X86_BOOT_H
+#define _X86_BOOT_H
+
+#include <kern/macros.h>
+#include <machine/vm_param.h>
+
+#define VM_KERNEL_OFFSET	VM_MIN_KERNEL_ADDRESS
+#define STACK_SIZE		PAGE_SIZE
+#define pmap_pte_t		void // XXX
+
+/*
+ * Macros used by the very early panic functions.
+ */
+#define BOOT_CGAMEM     0xb8000
+#define BOOT_CGACHARS   (80 * 25)
+#define BOOT_CGACOLOR   0x7
+
+/*
+ * The kernel is physically loaded at BOOT_OFFSET by the boot loader. It
+ * is divided in two parts: the .boot section which uses physical addresses
+ * and the main kernel code and data at VM_KERNEL_OFFSET.
+ *
+ * See the linker script for more information.
+ */
+#define BOOT_OFFSET DECL_CONST(0x100000, UL)
+
+/*
+ * Virtual to physical address translation macro.
+ */
+#define BOOT_VTOP(addr) ((addr) - VM_KERNEL_OFFSET)
+
+/*
+ * Address where the MP trampoline code is copied and run at.
+ *
+ * It must reside at a free location in the first segment and be page
+ * aligned.
+ */
+#define BOOT_MP_TRAMPOLINE_ADDR 0x7000
+
+#ifndef __ASSEMBLER__
+
+#include "multiboot.h"
+#include <machine/pmap.h>
+
+/*
+ * Functions and data used before paging is enabled must be part of the .boot
+ * and .bootdata sections respectively, so that they use physical addresses.
+ * Once paging is enabled, their access relies on the kernel identity mapping.
+ */
+#define __boot __section(".boot.text")
+#define __bootdata __section(".boot.data")
+
+/*
+ * Boundaries of the .boot section.
+ */
+extern char _boot;
+extern char _eboot;
+
+extern char boot_stack[STACK_SIZE];
+extern char boot_ap_stack[STACK_SIZE];
+
+/*
+ * This variable contains the CPU ID of an AP during early initialization.
+ */
+extern unsigned int boot_ap_id;
+
+/*
+ * Size of the trampoline code used for APs.
+ */
+extern uint32_t boot_mp_trampoline_size;
+
+/*
+ * Address of the MP trampoline code.
+ */
+void boot_mp_trampoline(void);
+
+/*
+ * Helper functions available before paging is enabled.
+ *
+ * Any memory passed to these must also be accessible without paging.
+ */
+void * boot_memmove(void *dest, const void *src, size_t n);
+void * boot_memset(void *s, int c, size_t n);
+size_t boot_strlen(const char *s);
+void __noreturn boot_panic(const char *s);
+
+/*
+ * This function is called by the bootstrap code before paging is enabled.
+ * It establishes a direct mapping of the kernel at virtual addresses and
+ * returns the physical address of the page directory. It is up to the
+ * caller to actually enable paging.
+ *
+ * TODO Update comment.
+ */
+pmap_pte_t * boot_setup_paging(const struct multiboot_raw_info *mbi,
+                               unsigned long eax);
+
+/*
+ * Main entry point, called directly after basic paging is initialized.
+ */
+void boot_main(void);
+
+/*
+ * Entry point for APs.
+ */
+void boot_ap_main(void);
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* _X86_BOOT_H */