222 lines
7.4 KiB
C
222 lines
7.4 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2003 Eric Biederman
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* Copyright (C) 2005 Steve Magnani
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* Copyright (C) 2008-2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <console/console.h>
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#include <cpu/cpu.h>
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#include <boot/tables.h>
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#include <boot/coreboot_tables.h>
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#include <arch/pirq_routing.h>
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#include <arch/smp/mpspec.h>
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#include <arch/acpi.h>
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#include <string.h>
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#include <cbmem.h>
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#include <smbios.h>
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void write_tables(void)
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{
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unsigned long low_table_start, low_table_end;
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unsigned long rom_table_start, rom_table_end;
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/* Even if high tables are configured, some tables are copied both to
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* the low and the high area, so payloads and OSes don't need to know
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* about the high tables.
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*/
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unsigned long high_table_pointer;
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rom_table_start = 0xf0000;
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rom_table_end = 0xf0000;
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/* Start low addr at 0x500, so we don't run into conflicts with the BDA
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* in case our data structures grow beyond 0x400. Only GDT
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* and the coreboot table use low_tables.
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*/
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low_table_start = 0;
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low_table_end = 0x500;
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#if CONFIG_GENERATE_PIRQ_TABLE
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#define MAX_PIRQ_TABLE_SIZE (4 * 1024)
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post_code(0x9a);
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/* This table must be between 0x0f0000 and 0x100000 */
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rom_table_end = write_pirq_routing_table(rom_table_end);
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rom_table_end = ALIGN(rom_table_end, 1024);
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/* And add a high table version for those payloads that
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* want to live in the F segment
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*/
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high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_PIRQ, MAX_PIRQ_TABLE_SIZE);
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if (high_table_pointer) {
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unsigned long new_high_table_pointer;
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new_high_table_pointer = write_pirq_routing_table(high_table_pointer);
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// FIXME make pirq table code intelligent enough to know how
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// much space it's going to need.
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if (new_high_table_pointer > (high_table_pointer + MAX_PIRQ_TABLE_SIZE)) {
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printk(BIOS_ERR, "ERROR: Increase PIRQ size.\n");
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}
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printk(BIOS_DEBUG, "PIRQ table: %ld bytes.\n",
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new_high_table_pointer - high_table_pointer);
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}
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#endif
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#if CONFIG_GENERATE_MP_TABLE
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#define MAX_MP_TABLE_SIZE (4 * 1024)
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post_code(0x9b);
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/* The smp table must be in 0-1K, 639K-640K, or 960K-1M */
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rom_table_end = write_smp_table(rom_table_end);
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rom_table_end = ALIGN(rom_table_end, 1024);
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high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_MPTABLE, MAX_MP_TABLE_SIZE);
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if (high_table_pointer) {
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unsigned long new_high_table_pointer;
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new_high_table_pointer = write_smp_table(high_table_pointer);
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// FIXME make mp table code intelligent enough to know how
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// much space it's going to need.
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if (new_high_table_pointer > (high_table_pointer + MAX_MP_TABLE_SIZE)) {
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printk(BIOS_ERR, "ERROR: Increase MP table size.\n");
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}
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printk(BIOS_DEBUG, "MP table: %ld bytes.\n",
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new_high_table_pointer - high_table_pointer);
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}
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#endif /* CONFIG_GENERATE_MP_TABLE */
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#if CONFIG_HAVE_ACPI_TABLES
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#define MAX_ACPI_SIZE (144 * 1024)
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post_code(0x9c);
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/* Write ACPI tables to F segment and high tables area */
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/* Ok, this is a bit hacky still, because some day we want to have this
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* completely dynamic. But right now we are setting fixed sizes.
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* It's probably still better than the old high_table_base code because
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* now at least we know when we have an overflow in the area.
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*
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* We want to use 1MB - 64K for Resume backup. We use 512B for TOC and
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* 512 byte for GDT, 4K for PIRQ and 4K for MP table and 8KB for the
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* coreboot table. This leaves us with 47KB for all of ACPI. Let's see
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* how far we get.
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*/
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high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_ACPI, MAX_ACPI_SIZE);
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if (high_table_pointer) {
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unsigned long acpi_start = high_table_pointer;
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unsigned long new_high_table_pointer;
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rom_table_end = ALIGN(rom_table_end, 16);
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new_high_table_pointer = write_acpi_tables(high_table_pointer);
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if (new_high_table_pointer > ( high_table_pointer + MAX_ACPI_SIZE)) {
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printk(BIOS_ERR, "ERROR: Increase ACPI size\n");
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}
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printk(BIOS_DEBUG, "ACPI tables: %ld bytes.\n",
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new_high_table_pointer - high_table_pointer);
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/* Now we need to create a low table copy of the RSDP. */
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/* First we look for the high table RSDP */
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while (acpi_start < new_high_table_pointer) {
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if (memcmp(((acpi_rsdp_t *)acpi_start)->signature, RSDP_SIG, 8) == 0) {
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break;
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}
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acpi_start++;
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}
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/* Now, if we found the RSDP, we take the RSDT and XSDT pointer
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* from it in order to write the low RSDP
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*/
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if (acpi_start < new_high_table_pointer) {
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acpi_rsdp_t *low_rsdp = (acpi_rsdp_t *)rom_table_end,
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*high_rsdp = (acpi_rsdp_t *)acpi_start;
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/* Technically rsdp length varies but coreboot always
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writes longest size available. */
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memcpy(low_rsdp, high_rsdp, sizeof(acpi_rsdp_t));
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} else {
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printk(BIOS_ERR, "ERROR: Didn't find RSDP in high table.\n");
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}
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rom_table_end = ALIGN(rom_table_end + sizeof(acpi_rsdp_t), 16);
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} else {
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rom_table_end = write_acpi_tables(rom_table_end);
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rom_table_end = ALIGN(rom_table_end, 1024);
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}
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#endif
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#define MAX_SMBIOS_SIZE 2048
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#if CONFIG_GENERATE_SMBIOS_TABLES
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high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_SMBIOS, MAX_SMBIOS_SIZE);
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if (high_table_pointer) {
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unsigned long new_high_table_pointer;
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new_high_table_pointer = smbios_write_tables(high_table_pointer);
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rom_table_end = ALIGN(rom_table_end, 16);
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memcpy((void *)rom_table_end, (void *)high_table_pointer, sizeof(struct smbios_entry));
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rom_table_end += sizeof(struct smbios_entry);
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if (new_high_table_pointer > ( high_table_pointer + MAX_SMBIOS_SIZE)) {
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printk(BIOS_ERR, "ERROR: Increase SMBIOS size\n");
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}
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printk(BIOS_DEBUG, "SMBIOS tables: %ld bytes.\n",
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new_high_table_pointer - high_table_pointer);
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} else {
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unsigned long new_rom_table_end = smbios_write_tables(rom_table_end);
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printk(BIOS_DEBUG, "SMBIOS size %ld bytes\n", new_rom_table_end - rom_table_end);
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rom_table_end = ALIGN(new_rom_table_end, 16);
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}
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#endif
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post_code(0x9e);
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#define MAX_COREBOOT_TABLE_SIZE (32 * 1024)
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post_code(0x9d);
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high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE, MAX_COREBOOT_TABLE_SIZE);
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if (high_table_pointer) {
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unsigned long new_high_table_pointer;
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/* FIXME: The high_table_base parameter is not reference when tables are high,
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* or high_table_pointer >1 MB.
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*/
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u64 fixme_high_tables_base = 0;
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/* Also put a forwarder entry into 0-4K */
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new_high_table_pointer = write_coreboot_table(low_table_start, low_table_end,
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fixme_high_tables_base, high_table_pointer);
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if (new_high_table_pointer > (high_table_pointer +
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MAX_COREBOOT_TABLE_SIZE))
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printk(BIOS_ERR, "%s: coreboot table didn't fit (%lx)\n",
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__func__, new_high_table_pointer -
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high_table_pointer);
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printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n",
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new_high_table_pointer - high_table_pointer);
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} else {
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/* The coreboot table must be in 0-4K or 960K-1M */
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write_coreboot_table(low_table_start, low_table_end,
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rom_table_start, rom_table_end);
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}
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/* Print CBMEM sections */
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cbmem_list();
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}
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