Drop boot directory

It only has two files, move them to src/lib

Change-Id: I17943db4c455aa3a934db1cf56e56e89c009679f
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1959
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)

1 files changed, 0 insertions, 543 deletions

diff --git a/src/boot/selfboot.c b/src/boot/selfboot.c
deleted file mode 100644
index 2556a14d6e..0000000000
--- a/src/boot/selfboot.c
+++ /dev/null
@@ -1,543 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2003 Eric W. Biederman <ebiederm@xmission.com>
- * Copyright (C) 2009 Ron Minnich <rminnich@gmail.com>
- *
- * 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; version 2 of the License.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
- */
-
-#include <arch/byteorder.h>
-#include <console/console.h>
-#include <fallback.h>
-#include <boot/elf.h>
-#include <boot/elf_boot.h>
-#include <boot/coreboot_tables.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <cbfs.h>
-#include <lib.h>
-#if CONFIG_COLLECT_TIMESTAMPS
-#include <timestamp.h>
-#endif
-
-/* Maximum physical address we can use for the coreboot bounce buffer. */
-#ifndef MAX_ADDR
-#define MAX_ADDR -1UL
-#endif
-
-/* from coreboot_ram.ld: */
-extern unsigned char _ram_seg;
-extern unsigned char _eram_seg;
-
-static const unsigned long lb_start = (unsigned long)&_ram_seg;
-static const unsigned long lb_end = (unsigned long)&_eram_seg;
-
-struct segment {
-	struct segment *next;
-	struct segment *prev;
-	unsigned long s_dstaddr;
-	unsigned long s_srcaddr;
-	unsigned long s_memsz;
-	unsigned long s_filesz;
-	int compression;
-};
-
-/* The problem:
- * Static executables all want to share the same addresses
- * in memory because only a few addresses are reliably present on
- * a machine, and implementing general relocation is hard.
- *
- * The solution:
- * - Allocate a buffer the size of the coreboot image plus additional
- *   required space.
- * - Anything that would overwrite coreboot copy into the lower part of
- *   the buffer.
- * - After loading an ELF image copy coreboot to the top of the buffer.
- * - Then jump to the loaded image.
- *
- * Benefits:
- * - Nearly arbitrary standalone executables can be loaded.
- * - Coreboot is preserved, so it can be returned to.
- * - The implementation is still relatively simple,
- *   and much simpler than the general case implemented in kexec.
- */
-
-static unsigned long bounce_size, bounce_buffer;
-
-static void get_bounce_buffer(struct lb_memory *mem, unsigned long req_size)
-{
-	unsigned long lb_size;
-	unsigned long mem_entries;
-	unsigned long buffer;
-	int i;
-	lb_size = lb_end - lb_start;
-	/* Plus coreboot size so I have somewhere
-	 * to place a copy to return to.
-	 */
-	lb_size = req_size + lb_size;
-	mem_entries = (mem->size - sizeof(*mem)) / sizeof(mem->map[0]);
-	buffer = 0;
-	for(i = 0; i < mem_entries; i++) {
-		unsigned long mstart, mend;
-		unsigned long msize;
-		unsigned long tbuffer;
-		if (mem->map[i].type != LB_MEM_RAM)
-			continue;
-		if (unpack_lb64(mem->map[i].start) > MAX_ADDR)
-			continue;
-		if (unpack_lb64(mem->map[i].size) < lb_size)
-			continue;
-		mstart = unpack_lb64(mem->map[i].start);
-		msize = MAX_ADDR - mstart +1;
-		if (msize > unpack_lb64(mem->map[i].size))
-			msize = unpack_lb64(mem->map[i].size);
-		mend = mstart + msize;
-		tbuffer = mend - lb_size;
-		if (tbuffer < buffer)
-			continue;
-		buffer = tbuffer;
-	}
-	bounce_buffer = buffer;
-	bounce_size = req_size;
-}
-
-static int valid_area(struct lb_memory *mem, unsigned long buffer,
-	unsigned long start, unsigned long len)
-{
-	/* Check through all of the memory segments and ensure
-	 * the segment that was passed in is completely contained
-	 * in RAM.
-	 */
-	int i;
-	unsigned long end = start + len;
-	unsigned long mem_entries = (mem->size - sizeof(*mem)) /
-		sizeof(mem->map[0]);
-
-	/* See if I conflict with the bounce buffer */
-	if (end >= buffer) {
-		return 0;
-	}
-
-	/* Walk through the table of valid memory ranges and see if I
-	 * have a match.
-	 */
-	for(i = 0; i < mem_entries; i++) {
-		uint64_t mstart, mend;
-		uint32_t mtype;
-		mtype = mem->map[i].type;
-		mstart = unpack_lb64(mem->map[i].start);
-		mend = mstart + unpack_lb64(mem->map[i].size);
-		if ((mtype == LB_MEM_RAM) && (start >= mstart) && (end < mend)) {
-			break;
-		}
-		if ((mtype == LB_MEM_TABLE) && (start >= mstart) && (end < mend)) {
-			printk(BIOS_ERR, "Payload is overwriting coreboot tables.\n");
-			break;
-		}
-	}
-	if (i == mem_entries) {
-		if (start < (1024*1024) && end <=(1024*1024)) {
-			printk(BIOS_DEBUG, "Payload (probably SeaBIOS) loaded"
-				" into a reserved area in the lower 1MB\n");
-			return 1;
-		}
-		printk(BIOS_ERR, "No matching ram area found for range:\n");
-		printk(BIOS_ERR, "  [0x%016lx, 0x%016lx)\n", start, end);
-		printk(BIOS_ERR, "Ram areas\n");
-		for(i = 0; i < mem_entries; i++) {
-			uint64_t mstart, mend;
-			uint32_t mtype;
-			mtype = mem->map[i].type;
-			mstart = unpack_lb64(mem->map[i].start);
-			mend = mstart + unpack_lb64(mem->map[i].size);
-			printk(BIOS_ERR, "  [0x%016lx, 0x%016lx) %s\n",
-				(unsigned long)mstart,
-				(unsigned long)mend,
-				(mtype == LB_MEM_RAM)?"RAM":"Reserved");
-
-		}
-		return 0;
-	}
-	return 1;
-}
-
-
-static int overlaps_coreboot(struct segment *seg)
-{
-	unsigned long start, end;
-	start = seg->s_dstaddr;
-	end = start + seg->s_memsz;
-	return !((end <= lb_start) || (start >= lb_end));
-}
-
-static int relocate_segment(unsigned long buffer, struct segment *seg)
-{
-	/* Modify all segments that want to load onto coreboot
-	 * to load onto the bounce buffer instead.
-	 */
-	/* ret:  1 : A new segment is inserted before the seg.
-	 *       0 : A new segment is inserted after the seg, or no new one.
-	 */
-	unsigned long start, middle, end, ret = 0;
-
-	printk(BIOS_SPEW, "lb: [0x%016lx, 0x%016lx)\n",
-		lb_start, lb_end);
-
-	/* I don't conflict with coreboot so get out of here */
-	if (!overlaps_coreboot(seg))
-		return 0;
-
-	start = seg->s_dstaddr;
-	middle = start + seg->s_filesz;
-	end = start + seg->s_memsz;
-
-	printk(BIOS_SPEW, "segment: [0x%016lx, 0x%016lx, 0x%016lx)\n",
-		start, middle, end);
-
-	if (seg->compression == CBFS_COMPRESS_NONE) {
-		/* Slice off a piece at the beginning
-		 * that doesn't conflict with coreboot.
-		 */
-		if (start < lb_start) {
-			struct segment *new;
-			unsigned long len = lb_start - start;
-			new = malloc(sizeof(*new));
-			*new = *seg;
-			new->s_memsz = len;
-			seg->s_memsz -= len;
-			seg->s_dstaddr += len;
-			seg->s_srcaddr += len;
-			if (seg->s_filesz > len) {
-				new->s_filesz = len;
-				seg->s_filesz -= len;
-			} else {
-				seg->s_filesz = 0;
-			}
-
-			/* Order by stream offset */
-			new->next = seg;
-			new->prev = seg->prev;
-			seg->prev->next = new;
-			seg->prev = new;
-
-			/* compute the new value of start */
-			start = seg->s_dstaddr;
-
-			printk(BIOS_SPEW, "   early: [0x%016lx, 0x%016lx, 0x%016lx)\n",
-				new->s_dstaddr,
-				new->s_dstaddr + new->s_filesz,
-				new->s_dstaddr + new->s_memsz);
-
-			ret = 1;
-		}
-
-		/* Slice off a piece at the end
-		 * that doesn't conflict with coreboot
-		 */
-		if (end > lb_end) {
-			unsigned long len = lb_end - start;
-			struct segment *new;
-			new = malloc(sizeof(*new));
-			*new = *seg;
-			seg->s_memsz = len;
-			new->s_memsz -= len;
-			new->s_dstaddr += len;
-			new->s_srcaddr += len;
-			if (seg->s_filesz > len) {
-				seg->s_filesz = len;
-				new->s_filesz -= len;
-			} else {
-				new->s_filesz = 0;
-			}
-			/* Order by stream offset */
-			new->next = seg->next;
-			new->prev = seg;
-			seg->next->prev = new;
-			seg->next = new;
-
-			printk(BIOS_SPEW, "   late: [0x%016lx, 0x%016lx, 0x%016lx)\n",
-				new->s_dstaddr,
-				new->s_dstaddr + new->s_filesz,
-				new->s_dstaddr + new->s_memsz);
-		}
-	}
-
-	/* Now retarget this segment onto the bounce buffer */
-	/* sort of explanation: the buffer is a 1:1 mapping to coreboot.
-	 * so you will make the dstaddr be this buffer, and it will get copied
-	 * later to where coreboot lives.
-	 */
-	seg->s_dstaddr = buffer + (seg->s_dstaddr - lb_start);
-
-	printk(BIOS_SPEW, " bounce: [0x%016lx, 0x%016lx, 0x%016lx)\n",
-		seg->s_dstaddr,
-		seg->s_dstaddr + seg->s_filesz,
-		seg->s_dstaddr + seg->s_memsz);
-
-	return ret;
-}
-
-
-static int build_self_segment_list(
-	struct segment *head,
-	struct lb_memory *mem,
-	struct cbfs_payload *payload, u32 *entry)
-{
-	struct segment *new;
-	struct segment *ptr;
-	struct cbfs_payload_segment *segment, *first_segment;
-	memset(head, 0, sizeof(*head));
-	head->next = head->prev = head;
-	first_segment = segment = &payload->segments;
-
-	while(1) {
-		printk(BIOS_DEBUG, "Loading segment from rom address 0x%p\n", segment);
-		switch(segment->type) {
-		case PAYLOAD_SEGMENT_PARAMS:
-			printk(BIOS_DEBUG, "  parameter section (skipped)\n");
-			segment++;
-			continue;
-
-		case PAYLOAD_SEGMENT_CODE:
-		case PAYLOAD_SEGMENT_DATA:
-			printk(BIOS_DEBUG, "  %s (compression=%x)\n",
-					segment->type == PAYLOAD_SEGMENT_CODE ?  "code" : "data",
-					ntohl(segment->compression));
-			new = malloc(sizeof(*new));
-			new->s_dstaddr = ntohll(segment->load_addr);
-			new->s_memsz = ntohl(segment->mem_len);
-			new->compression = ntohl(segment->compression);
-
-			new->s_srcaddr = (u32) ((unsigned char *)first_segment)
-						+ ntohl(segment->offset);
-			new->s_filesz = ntohl(segment->len);
-			printk(BIOS_DEBUG, "  New segment dstaddr 0x%lx memsize 0x%lx srcaddr 0x%lx filesize 0x%lx\n",
-				new->s_dstaddr, new->s_memsz, new->s_srcaddr, new->s_filesz);
-			/* Clean up the values */
-			if (new->s_filesz > new->s_memsz)  {
-				new->s_filesz = new->s_memsz;
-			}
-			printk(BIOS_DEBUG, "  (cleaned up) New segment addr 0x%lx size 0x%lx offset 0x%lx filesize 0x%lx\n",
-				new->s_dstaddr, new->s_memsz, new->s_srcaddr, new->s_filesz);
-			break;
-
-		case PAYLOAD_SEGMENT_BSS:
-			printk(BIOS_DEBUG, "  BSS 0x%p (%d byte)\n", (void *)
-					(intptr_t)ntohll(segment->load_addr),
-				 	ntohl(segment->mem_len));
-			new = malloc(sizeof(*new));
-			new->s_filesz = 0;
-			new->s_dstaddr = ntohll(segment->load_addr);
-			new->s_memsz = ntohl(segment->mem_len);
-			break;
-
-		case PAYLOAD_SEGMENT_ENTRY:
-			printk(BIOS_DEBUG, "  Entry Point 0x%p\n", (void *) ntohl((u32) segment->load_addr));
-			*entry =  ntohll(segment->load_addr);
-			/* Per definition, a payload always has the entry point
-			 * as last segment. Thus, we use the occurence of the
-			 * entry point as break condition for the loop.
-			 * Can we actually just look at the number of section?
-			 */
-			return 1;
-
-		default:
-			/* We found something that we don't know about. Throw
-			 * hands into the sky and run away!
-			 */
-			printk(BIOS_EMERG, "Bad segment type %x\n", segment->type);
-			return -1;
-		}
-
-		/* We have found another CODE, DATA or BSS segment */
-		segment++;
-
-		/* Find place where to insert our segment */
-		for(ptr = head->next; ptr != head; ptr = ptr->next) {
-			if (new->s_srcaddr < ntohll(segment->load_addr))
-				break;
-		}
-
-		/* Order by stream offset */
-		new->next = ptr;
-		new->prev = ptr->prev;
-		ptr->prev->next = new;
-		ptr->prev = new;
-	}
-
-	return 1;
-}
-
-static int load_self_segments(
-	struct segment *head,
-	struct lb_memory *mem,
-	struct cbfs_payload *payload)
-{
-	struct segment *ptr;
-
-	unsigned long bounce_high = lb_end;
-	for(ptr = head->next; ptr != head; ptr = ptr->next) {
-		if (!overlaps_coreboot(ptr))
-			continue;
-		if (ptr->s_dstaddr + ptr->s_memsz > bounce_high)
-			bounce_high = ptr->s_dstaddr + ptr->s_memsz;
-	}
-	get_bounce_buffer(mem, bounce_high - lb_start);
-	if (!bounce_buffer) {
-		printk(BIOS_ERR, "Could not find a bounce buffer...\n");
-		return 0;
-	}
-	for(ptr = head->next; ptr != head; ptr = ptr->next) {
-		/* Verify the memory addresses in the segment are valid */
-		if (!valid_area(mem, bounce_buffer, ptr->s_dstaddr, ptr->s_memsz))
-			return 0;
-	}
-	for(ptr = head->next; ptr != head; ptr = ptr->next) {
-		unsigned char *dest, *src;
-		printk(BIOS_DEBUG, "Loading Segment: addr: 0x%016lx memsz: 0x%016lx filesz: 0x%016lx\n",
-			ptr->s_dstaddr, ptr->s_memsz, ptr->s_filesz);
-
-		/* Modify the segment to load onto the bounce_buffer if necessary.
-		 */
-		if (relocate_segment(bounce_buffer, ptr)) {
-			ptr = (ptr->prev)->prev;
-			continue;
-		}
-
-		printk(BIOS_DEBUG, "Post relocation: addr: 0x%016lx memsz: 0x%016lx filesz: 0x%016lx\n",
-			ptr->s_dstaddr, ptr->s_memsz, ptr->s_filesz);
-
-		/* Compute the boundaries of the segment */
-		dest = (unsigned char *)(ptr->s_dstaddr);
-		src = (unsigned char *)(ptr->s_srcaddr);
-
-		/* Copy data from the initial buffer */
-		if (ptr->s_filesz) {
-			unsigned char *middle, *end;
-			size_t len;
-			len = ptr->s_filesz;
-			switch(ptr->compression) {
-				case CBFS_COMPRESS_LZMA: {
-					printk(BIOS_DEBUG, "using LZMA\n");
-					len = ulzma(src, dest);
-					if (!len) /* Decompression Error. */
-						return 0;
-					break;
-				}
-#if CONFIG_COMPRESSED_PAYLOAD_NRV2B
-				case CBFS_COMPRESS_NRV2B: {
-					printk(BIOS_DEBUG, "using NRV2B\n");
-					unsigned long unrv2b(u8 *src, u8 *dst, unsigned long *ilen_p);
-					unsigned long tmp;
-					len = unrv2b(src, dest, &tmp);
-					break;
-				}
-#endif
-				case CBFS_COMPRESS_NONE: {
-					printk(BIOS_DEBUG, "it's not compressed!\n");
-					memcpy(dest, src, len);
-					break;
-				}
-				default:
-					printk(BIOS_INFO,  "CBFS:  Unknown compression type %d\n", ptr->compression);
-					return -1;
-			}
-			end = dest + ptr->s_memsz;
-			middle = dest + len;
-			printk(BIOS_SPEW, "[ 0x%08lx, %08lx, 0x%08lx) <- %08lx\n",
-				(unsigned long)dest,
-				(unsigned long)middle,
-				(unsigned long)end,
-				(unsigned long)src);
-
-			/* Zero the extra bytes between middle & end */
-			if (middle < end) {
-				printk(BIOS_DEBUG, "Clearing Segment: addr: 0x%016lx memsz: 0x%016lx\n",
-					(unsigned long)middle, (unsigned long)(end - middle));
-
-				/* Zero the extra bytes */
-				memset(middle, 0, end - middle);
-			}
-			/* Copy the data that's outside the area that shadows coreboot_ram */
-			printk(BIOS_DEBUG, "dest %p, end %p, bouncebuffer %lx\n", dest, end, bounce_buffer);
-			if ((unsigned long)end > bounce_buffer) {
-				if ((unsigned long)dest < bounce_buffer) {
-					unsigned char *from = dest;
-					unsigned char *to = (unsigned char*)(lb_start-(bounce_buffer-(unsigned long)dest));
-					unsigned long amount = bounce_buffer-(unsigned long)dest;
-					printk(BIOS_DEBUG, "move prefix around: from %p, to %p, amount: %lx\n", from, to, amount);
-					memcpy(to, from, amount);
-				}
-				if ((unsigned long)end > bounce_buffer + (lb_end - lb_start)) {
-					unsigned long from = bounce_buffer + (lb_end - lb_start);
-					unsigned long to = lb_end;
-					unsigned long amount = (unsigned long)end - from;
-					printk(BIOS_DEBUG, "move suffix around: from %lx, to %lx, amount: %lx\n", from, to, amount);
-					memcpy((char*)to, (char*)from, amount);
-				}
-			}
-		}
-	}
-	return 1;
-}
-
-int selfboot(struct lb_memory *mem, struct cbfs_payload *payload)
-{
-	u32 entry=0;
-	struct segment head;
-
-	/* Preprocess the self segments */
-	if (!build_self_segment_list(&head, mem, payload, &entry))
-		goto out;
-
-	/* Load the segments */
-	if (!load_self_segments(&head, mem, payload))
-		goto out;
-
-	printk(BIOS_SPEW, "Loaded segments\n");
-
-	/* Reset to booting from this image as late as possible */
-	boot_successful();
-
-	printk(BIOS_DEBUG, "Jumping to boot code at %x\n", entry);
-	post_code(POST_ENTER_ELF_BOOT);
-
-#if CONFIG_COLLECT_TIMESTAMPS
-	timestamp_add_now(TS_SELFBOOT_JUMP);
-#endif
-
-	/* Before we go off to run the payload, see if
-	 * we stayed within our bounds.
-	 */
-	checkstack(_estack, 0);
-
-	/* Jump to kernel */
-	jmp_to_elf_entry((void*)entry, bounce_buffer, bounce_size);
-	return 1;
-
-out:
-	return 0;
-}
-
-void *cbfs_load_payload(struct lb_memory *lb_mem, const char *name)
-{
-	struct cbfs_payload *payload;
-
-	payload = (struct cbfs_payload *)cbfs_find_file(name, CBFS_TYPE_PAYLOAD);
-
-	return payload;
-}
-