1 files changed, 221 insertions, 0 deletions
diff --git a/src/arch/x86/tables.c b/src/arch/x86/tables.c
new file mode 100644
index 0000000..3d64563
--- /dev/null
+++ b/src/arch/x86/tables.c
@@ -0,0 +1,221 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2003 Eric Biederman
+ * Copyright (C) 2005 Steve Magnani
+ * Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * 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.
+ */
+
+#include <console/console.h>
+#include <cpu/cpu.h>
+#include <boot/tables.h>
+#include <boot/coreboot_tables.h>
+#include <arch/pirq_routing.h>
+#include <arch/smp/mpspec.h>
+#include <arch/acpi.h>
+#include <string.h>
+#include <cbmem.h>
+#include <smbios.h>
+
+void write_tables(void)
+{
+	unsigned long low_table_start, low_table_end;
+	unsigned long rom_table_start, rom_table_end;
+
+	/* Even if high tables are configured, some tables are copied both to
+	 * the low and the high area, so payloads and OSes don't need to know
+	 * about the high tables.
+	 */
+	unsigned long high_table_pointer;
+
+	rom_table_start = 0xf0000;
+	rom_table_end =   0xf0000;
+
+	/* Start low addr at 0x500, so we don't run into conflicts with the BDA
+	 * in case our data structures grow beyond 0x400. Only GDT
+	 * and the coreboot table use low_tables.
+	 */
+	low_table_start = 0;
+	low_table_end = 0x500;
+
+#if CONFIG_GENERATE_PIRQ_TABLE
+#define MAX_PIRQ_TABLE_SIZE (4 * 1024)
+	post_code(0x9a);
+
+	/* This table must be between 0x0f0000 and 0x100000 */
+	rom_table_end = write_pirq_routing_table(rom_table_end);
+	rom_table_end = ALIGN(rom_table_end, 1024);
+
+	/* And add a high table version for those payloads that
+	 * want to live in the F segment
+	 */
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_PIRQ, MAX_PIRQ_TABLE_SIZE);
+	if (high_table_pointer) {
+		unsigned long new_high_table_pointer;
+		new_high_table_pointer = write_pirq_routing_table(high_table_pointer);
+		// FIXME make pirq table code intelligent enough to know how
+		// much space it's going to need.
+		if (new_high_table_pointer > (high_table_pointer + MAX_PIRQ_TABLE_SIZE)) {
+			printk(BIOS_ERR, "ERROR: Increase PIRQ size.\n");
+		}
+		printk(BIOS_DEBUG, "PIRQ table: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+	}
+
+#endif
+
+#if CONFIG_GENERATE_MP_TABLE
+#define MAX_MP_TABLE_SIZE (4 * 1024)
+	post_code(0x9b);
+
+	/* The smp table must be in 0-1K, 639K-640K, or 960K-1M */
+	rom_table_end = write_smp_table(rom_table_end);
+	rom_table_end = ALIGN(rom_table_end, 1024);
+
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_MPTABLE, MAX_MP_TABLE_SIZE);
+	if (high_table_pointer) {
+		unsigned long new_high_table_pointer;
+		new_high_table_pointer = write_smp_table(high_table_pointer);
+		// FIXME make mp table code intelligent enough to know how
+		// much space it's going to need.
+		if (new_high_table_pointer > (high_table_pointer + MAX_MP_TABLE_SIZE)) {
+			printk(BIOS_ERR, "ERROR: Increase MP table size.\n");
+		}
+
+		printk(BIOS_DEBUG, "MP table: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+	}
+#endif /* CONFIG_GENERATE_MP_TABLE */
+
+#if CONFIG_HAVE_ACPI_TABLES
+#define MAX_ACPI_SIZE (144 * 1024)
+
+	post_code(0x9c);
+
+	/* Write ACPI tables to F segment and high tables area */
+
+	/* Ok, this is a bit hacky still, because some day we want to have this
+	 * completely dynamic. But right now we are setting fixed sizes.
+	 * It's probably still better than the old high_table_base code because
+	 * now at least we know when we have an overflow in the area.
+	 *
+	 * We want to use 1MB - 64K for Resume backup. We use 512B for TOC and
+	 * 512 byte for GDT, 4K for PIRQ and 4K for MP table and 8KB for the
+	 * coreboot table. This leaves us with 47KB for all of ACPI. Let's see
+	 * how far we get.
+	 */
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_ACPI, MAX_ACPI_SIZE);
+	if (high_table_pointer) {
+		unsigned long acpi_start = high_table_pointer;
+		unsigned long new_high_table_pointer;
+
+		rom_table_end = ALIGN(rom_table_end, 16);
+		new_high_table_pointer = write_acpi_tables(high_table_pointer);
+		if (new_high_table_pointer > ( high_table_pointer + MAX_ACPI_SIZE)) {
+			printk(BIOS_ERR, "ERROR: Increase ACPI size\n");
+		}
+                printk(BIOS_DEBUG, "ACPI tables: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+
+		/* Now we need to create a low table copy of the RSDP. */
+
+		/* First we look for the high table RSDP */
+		while (acpi_start < new_high_table_pointer) {
+			if (memcmp(((acpi_rsdp_t *)acpi_start)->signature, RSDP_SIG, 8) == 0) {
+				break;
+			}
+			acpi_start++;
+		}
+
+		/* Now, if we found the RSDP, we take the RSDT and XSDT pointer
+		 * from it in order to write the low RSDP
+		 */
+		if (acpi_start < new_high_table_pointer) {
+			acpi_rsdp_t *low_rsdp = (acpi_rsdp_t *)rom_table_end,
+				    *high_rsdp = (acpi_rsdp_t *)acpi_start;
+
+			/* Technically rsdp length varies but coreboot always
+			   writes longest size available.  */
+			memcpy(low_rsdp, high_rsdp, sizeof(acpi_rsdp_t));
+		} else {
+			printk(BIOS_ERR, "ERROR: Didn't find RSDP in high table.\n");
+		}
+		rom_table_end = ALIGN(rom_table_end + sizeof(acpi_rsdp_t), 16);
+	} else {
+		rom_table_end = write_acpi_tables(rom_table_end);
+		rom_table_end = ALIGN(rom_table_end, 1024);
+	}
+
+#endif
+#define MAX_SMBIOS_SIZE 2048
+#if CONFIG_GENERATE_SMBIOS_TABLES
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_SMBIOS, MAX_SMBIOS_SIZE);
+	if (high_table_pointer) {
+		unsigned long new_high_table_pointer;
+
+		new_high_table_pointer = smbios_write_tables(high_table_pointer);
+		rom_table_end = ALIGN(rom_table_end, 16);
+		memcpy((void *)rom_table_end, (void *)high_table_pointer, sizeof(struct smbios_entry));
+		rom_table_end += sizeof(struct smbios_entry);
+
+		if (new_high_table_pointer > ( high_table_pointer + MAX_SMBIOS_SIZE)) {
+			printk(BIOS_ERR, "ERROR: Increase SMBIOS size\n");
+		}
+                printk(BIOS_DEBUG, "SMBIOS tables: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+	} else {
+		unsigned long new_rom_table_end = smbios_write_tables(rom_table_end);
+		printk(BIOS_DEBUG, "SMBIOS size %ld bytes\n", new_rom_table_end - rom_table_end);
+		rom_table_end = ALIGN(new_rom_table_end, 16);
+	}
+#endif
+
+	post_code(0x9e);
+
+#define MAX_COREBOOT_TABLE_SIZE (32 * 1024)
+	post_code(0x9d);
+
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE, MAX_COREBOOT_TABLE_SIZE);
+
+	if (high_table_pointer) {
+		unsigned long new_high_table_pointer;
+
+		/* FIXME: The high_table_base parameter is not reference when tables are high,
+		 * or high_table_pointer >1 MB.
+		 */
+		u64 fixme_high_tables_base = 0;
+
+		/* Also put a forwarder entry into 0-4K */
+		new_high_table_pointer = write_coreboot_table(low_table_start, low_table_end,
+				fixme_high_tables_base, high_table_pointer);
+
+		if (new_high_table_pointer > (high_table_pointer +
+					MAX_COREBOOT_TABLE_SIZE))
+			printk(BIOS_ERR, "%s: coreboot table didn't fit (%lx)\n",
+				   __func__, new_high_table_pointer -
+				   high_table_pointer);
+
+                printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+	} else {
+		/* The coreboot table must be in 0-4K or 960K-1M */
+		write_coreboot_table(low_table_start, low_table_end,
+				     rom_table_start, rom_table_end);
+	}
+
+	/* Print CBMEM sections */
+	cbmem_list();
+}