[coreboot] Patch set updated for coreboot: 2dc613b Drop boot directory
Ronald G. Minnich (rminnich@gmail.com)
gerrit at coreboot.org
Fri Nov 30 21:35:25 CET 2012
Ronald G. Minnich (rminnich at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1959
-gerrit
commit 2dc613b2f449f2ca23cb6cf01097dbb442dd3875
Author: Stefan Reinauer <reinauer at chromium.org>
Date: Fri Nov 30 12:23:45 2012 -0800
Drop boot directory
It only has two files, move them to src/lib
Change-Id: I17943db4c455aa3a934db1cf56e56e89c009679f
Signed-off-by: Stefan Reinauer <reinauer at google.com>
---
Makefile.inc | 2 +-
src/boot/Makefile.inc | 2 -
src/boot/hardwaremain.c | 147 -------------
src/boot/selfboot.c | 543 ------------------------------------------------
src/lib/Makefile.inc | 2 +
src/lib/hardwaremain.c | 147 +++++++++++++
src/lib/selfboot.c | 543 ++++++++++++++++++++++++++++++++++++++++++++++++
7 files changed, 693 insertions(+), 693 deletions(-)
diff --git a/Makefile.inc b/Makefile.inc
index 7caf359..927548e 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -48,7 +48,7 @@ PHONY+= clean-abuild coreboot lint lint-stable build-dirs
#######################################################################
# root source directories of coreboot
-subdirs-y := src/lib src/boot src/console src/devices src/ec src/southbridge
+subdirs-y := src/lib src/console src/devices src/ec src/southbridge
subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode
subdirs-y += util/cbfstool util/sconfig util/nvramtool
subdirs-y += src/arch/$(ARCHDIR-y)
diff --git a/src/boot/Makefile.inc b/src/boot/Makefile.inc
deleted file mode 100644
index a61f89e..0000000
--- a/src/boot/Makefile.inc
+++ /dev/null
@@ -1,2 +0,0 @@
-ramstage-y += hardwaremain.c
-ramstage-y += selfboot.c
diff --git a/src/boot/hardwaremain.c b/src/boot/hardwaremain.c
deleted file mode 100644
index 206e82b..0000000
--- a/src/boot/hardwaremain.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
-This software and ancillary information (herein called SOFTWARE )
-called LinuxBIOS is made available under the terms described
-here. The SOFTWARE has been approved for release with associated
-LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has
-been authored by an employee or employees of the University of
-California, operator of the Los Alamos National Laboratory under
-Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The
-U.S. Government has rights to use, reproduce, and distribute this
-SOFTWARE. The public may copy, distribute, prepare derivative works
-and publicly display this SOFTWARE without charge, provided that this
-Notice and any statement of authorship are reproduced on all copies.
-Neither the Government nor the University makes any warranty, express
-or implied, or assumes any liability or responsibility for the use of
-this SOFTWARE. If SOFTWARE is modified to produce derivative works,
-such modified SOFTWARE should be clearly marked, so as not to confuse
-it with the version available from LANL.
- */
-/* Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL
- * rminnich at lanl.gov
- */
-
-
-/*
- * C Bootstrap code for the coreboot
- */
-
-#include <console/console.h>
-#include <version.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <delay.h>
-#include <stdlib.h>
-#include <reset.h>
-#include <boot/tables.h>
-#include <boot/elf.h>
-#include <cbfs.h>
-#include <lib.h>
-#if CONFIG_HAVE_ACPI_RESUME
-#include <arch/acpi.h>
-#endif
-#if CONFIG_WRITE_HIGH_TABLES
-#include <cbmem.h>
-#endif
-#include <timestamp.h>
-
-/**
- * @brief Main function of the RAM part of coreboot.
- *
- * Coreboot is divided into Pre-RAM part and RAM part.
- *
- * Device Enumeration:
- * In the dev_enumerate() phase,
- */
-
-void hardwaremain(int boot_complete);
-
-void hardwaremain(int boot_complete)
-{
- struct lb_memory *lb_mem;
-
- timestamp_stash(TS_START_RAMSTAGE);
- post_code(POST_ENTRY_RAMSTAGE);
-
- /* console_init() MUST PRECEDE ALL printk()! */
- console_init();
-
- post_code(POST_CONSOLE_READY);
-
- printk(BIOS_NOTICE, "coreboot-%s%s %s %s...\n",
- coreboot_version, coreboot_extra_version, coreboot_build,
- (boot_complete)?"rebooting":"booting");
-
- post_code(POST_CONSOLE_BOOT_MSG);
-
- /* If we have already booted attempt a hard reboot */
- if (boot_complete) {
- hard_reset();
- }
-
- /* FIXME: Is there a better way to handle this? */
- init_timer();
-
- timestamp_stash(TS_DEVICE_ENUMERATE);
-
- /* Initialize chips early, they might disable unused devices. */
- dev_initialize_chips();
-
- /* Find the devices we don't have hard coded knowledge about. */
- dev_enumerate();
- post_code(POST_DEVICE_ENUMERATION_COMPLETE);
-
- timestamp_stash(TS_DEVICE_CONFIGURE);
- /* Now compute and assign the bus resources. */
- dev_configure();
- post_code(POST_DEVICE_CONFIGURATION_COMPLETE);
-
- timestamp_stash(TS_DEVICE_ENABLE);
- /* Now actually enable devices on the bus */
- dev_enable();
- post_code(POST_DEVICES_ENABLED);
-
- timestamp_stash(TS_DEVICE_INITIALIZE);
- /* And of course initialize devices on the bus */
- dev_initialize();
- post_code(POST_DEVICES_INITIALIZED);
-
- timestamp_stash(TS_DEVICE_DONE);
-
-#if CONFIG_WRITE_HIGH_TABLES
- cbmem_initialize();
-#if CONFIG_CONSOLE_CBMEM
- cbmemc_reinit();
-#endif
-#endif
- timestamp_sync();
-
-#if CONFIG_HAVE_ACPI_RESUME
- suspend_resume();
- post_code(0x8a);
-#endif
-
- timestamp_add_now(TS_CBMEM_POST);
-
-#if CONFIG_WRITE_HIGH_TABLES
- if (cbmem_post_handling)
- cbmem_post_handling();
-#endif
-
- timestamp_add_now(TS_WRITE_TABLES);
-
- /* Now that we have collected all of our information
- * write our configuration tables.
- */
- lb_mem = write_tables();
-
- timestamp_add_now(TS_LOAD_PAYLOAD);
-
- void *payload;
- payload = cbfs_load_payload(lb_mem, CONFIG_CBFS_PREFIX "/payload");
- if (! payload)
- die("Could not find a payload\n");
-
- selfboot(lb_mem, payload);
- printk(BIOS_EMERG, "Boot failed");
-}
-
diff --git a/src/boot/selfboot.c b/src/boot/selfboot.c
deleted file mode 100644
index 2556a14..0000000
--- 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 at xmission.com>
- * Copyright (C) 2009 Ron Minnich <rminnich at 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;
-}
-
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index f99ca1b..3b16170 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -39,6 +39,8 @@ romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
romstage-y += compute_ip_checksum.c
romstage-y += memmove.c
+ramstage-y += hardwaremain.c
+ramstage-y += selfboot.c
ifneq ($(CONFIG_HAVE_ARCH_MEMSET),y)
ramstage-y += memset.c
endif
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c
new file mode 100644
index 0000000..206e82b
--- /dev/null
+++ b/src/lib/hardwaremain.c
@@ -0,0 +1,147 @@
+/*
+This software and ancillary information (herein called SOFTWARE )
+called LinuxBIOS is made available under the terms described
+here. The SOFTWARE has been approved for release with associated
+LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has
+been authored by an employee or employees of the University of
+California, operator of the Los Alamos National Laboratory under
+Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The
+U.S. Government has rights to use, reproduce, and distribute this
+SOFTWARE. The public may copy, distribute, prepare derivative works
+and publicly display this SOFTWARE without charge, provided that this
+Notice and any statement of authorship are reproduced on all copies.
+Neither the Government nor the University makes any warranty, express
+or implied, or assumes any liability or responsibility for the use of
+this SOFTWARE. If SOFTWARE is modified to produce derivative works,
+such modified SOFTWARE should be clearly marked, so as not to confuse
+it with the version available from LANL.
+ */
+/* Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL
+ * rminnich at lanl.gov
+ */
+
+
+/*
+ * C Bootstrap code for the coreboot
+ */
+
+#include <console/console.h>
+#include <version.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <delay.h>
+#include <stdlib.h>
+#include <reset.h>
+#include <boot/tables.h>
+#include <boot/elf.h>
+#include <cbfs.h>
+#include <lib.h>
+#if CONFIG_HAVE_ACPI_RESUME
+#include <arch/acpi.h>
+#endif
+#if CONFIG_WRITE_HIGH_TABLES
+#include <cbmem.h>
+#endif
+#include <timestamp.h>
+
+/**
+ * @brief Main function of the RAM part of coreboot.
+ *
+ * Coreboot is divided into Pre-RAM part and RAM part.
+ *
+ * Device Enumeration:
+ * In the dev_enumerate() phase,
+ */
+
+void hardwaremain(int boot_complete);
+
+void hardwaremain(int boot_complete)
+{
+ struct lb_memory *lb_mem;
+
+ timestamp_stash(TS_START_RAMSTAGE);
+ post_code(POST_ENTRY_RAMSTAGE);
+
+ /* console_init() MUST PRECEDE ALL printk()! */
+ console_init();
+
+ post_code(POST_CONSOLE_READY);
+
+ printk(BIOS_NOTICE, "coreboot-%s%s %s %s...\n",
+ coreboot_version, coreboot_extra_version, coreboot_build,
+ (boot_complete)?"rebooting":"booting");
+
+ post_code(POST_CONSOLE_BOOT_MSG);
+
+ /* If we have already booted attempt a hard reboot */
+ if (boot_complete) {
+ hard_reset();
+ }
+
+ /* FIXME: Is there a better way to handle this? */
+ init_timer();
+
+ timestamp_stash(TS_DEVICE_ENUMERATE);
+
+ /* Initialize chips early, they might disable unused devices. */
+ dev_initialize_chips();
+
+ /* Find the devices we don't have hard coded knowledge about. */
+ dev_enumerate();
+ post_code(POST_DEVICE_ENUMERATION_COMPLETE);
+
+ timestamp_stash(TS_DEVICE_CONFIGURE);
+ /* Now compute and assign the bus resources. */
+ dev_configure();
+ post_code(POST_DEVICE_CONFIGURATION_COMPLETE);
+
+ timestamp_stash(TS_DEVICE_ENABLE);
+ /* Now actually enable devices on the bus */
+ dev_enable();
+ post_code(POST_DEVICES_ENABLED);
+
+ timestamp_stash(TS_DEVICE_INITIALIZE);
+ /* And of course initialize devices on the bus */
+ dev_initialize();
+ post_code(POST_DEVICES_INITIALIZED);
+
+ timestamp_stash(TS_DEVICE_DONE);
+
+#if CONFIG_WRITE_HIGH_TABLES
+ cbmem_initialize();
+#if CONFIG_CONSOLE_CBMEM
+ cbmemc_reinit();
+#endif
+#endif
+ timestamp_sync();
+
+#if CONFIG_HAVE_ACPI_RESUME
+ suspend_resume();
+ post_code(0x8a);
+#endif
+
+ timestamp_add_now(TS_CBMEM_POST);
+
+#if CONFIG_WRITE_HIGH_TABLES
+ if (cbmem_post_handling)
+ cbmem_post_handling();
+#endif
+
+ timestamp_add_now(TS_WRITE_TABLES);
+
+ /* Now that we have collected all of our information
+ * write our configuration tables.
+ */
+ lb_mem = write_tables();
+
+ timestamp_add_now(TS_LOAD_PAYLOAD);
+
+ void *payload;
+ payload = cbfs_load_payload(lb_mem, CONFIG_CBFS_PREFIX "/payload");
+ if (! payload)
+ die("Could not find a payload\n");
+
+ selfboot(lb_mem, payload);
+ printk(BIOS_EMERG, "Boot failed");
+}
+
diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c
new file mode 100644
index 0000000..2556a14
--- /dev/null
+++ b/src/lib/selfboot.c
@@ -0,0 +1,543 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2003 Eric W. Biederman <ebiederm at xmission.com>
+ * Copyright (C) 2009 Ron Minnich <rminnich at 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;
+}
+
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