- Initial checkin of the freebios2 tree
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/arch/i386/boot/boot.c b/src/arch/i386/boot/boot.c
new file mode 100644
index 0000000..84c71da
--- /dev/null
+++ b/src/arch/i386/boot/boot.c
@@ -0,0 +1,182 @@
+#include <console/console.h>
+#include <ip_checksum.h>
+#include <boot/elf.h>
+#include <boot/elf_boot.h>
+#include <string.h>
+
+
+#ifndef CMD_LINE
+#define CMD_LINE ""
+#endif
+
+
+
+#define UPSZ(X) ((sizeof(X) + 3) &~3)
+
+static struct {
+ Elf_Bhdr hdr;
+ Elf_Nhdr ft_hdr;
+ unsigned char ft_desc[UPSZ(FIRMWARE_TYPE)];
+ Elf_Nhdr bl_hdr;
+ unsigned char bl_desc[UPSZ(BOOTLOADER)];
+ Elf_Nhdr blv_hdr;
+ unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
+ Elf_Nhdr cmd_hdr;
+ unsigned char cmd_desc[UPSZ(CMD_LINE)];
+} elf_boot_notes = {
+ .hdr = {
+ .b_signature = 0x0E1FB007,
+ .b_size = sizeof(elf_boot_notes),
+ .b_checksum = 0,
+ .b_records = 4,
+ },
+ .ft_hdr = {
+ .n_namesz = 0,
+ .n_descsz = sizeof(FIRMWARE_TYPE),
+ .n_type = EBN_FIRMWARE_TYPE,
+ },
+ .ft_desc = FIRMWARE_TYPE,
+ .bl_hdr = {
+ .n_namesz = 0,
+ .n_descsz = sizeof(BOOTLOADER),
+ .n_type = EBN_BOOTLOADER_NAME,
+ },
+ .bl_desc = BOOTLOADER,
+ .blv_hdr = {
+ .n_namesz = 0,
+ .n_descsz = sizeof(BOOTLOADER_VERSION),
+ .n_type = EBN_BOOTLOADER_VERSION,
+ },
+ .blv_desc = BOOTLOADER_VERSION,
+ .cmd_hdr = {
+ .n_namesz = 0,
+ .n_descsz = sizeof(CMD_LINE),
+ .n_type = EBN_COMMAND_LINE,
+ },
+ .cmd_desc = CMD_LINE,
+};
+
+
+int elf_check_arch(Elf_ehdr *ehdr)
+{
+ return (
+ ((ehdr->e_machine == EM_386) || (ehdr->e_machine == EM_486)) &&
+ (ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
+ (ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
+ );
+
+}
+
+void jmp_to_elf_entry(void *entry, unsigned long buffer)
+{
+ extern unsigned char _ram_seg, _eram_seg;
+ unsigned long lb_start, lb_size;
+ unsigned long adjust, adjusted_boot_notes;
+ unsigned long type;
+
+ elf_boot_notes.hdr.b_checksum =
+ compute_ip_checksum(&elf_boot_notes, sizeof(elf_boot_notes));
+
+ type = 0x0E1FB007;
+ lb_start = (unsigned long)&_ram_seg;
+ lb_size = (unsigned long)(&_eram_seg - &_ram_seg);
+ adjust = buffer + lb_size - lb_start;
+
+ adjusted_boot_notes = (unsigned long)&elf_boot_notes;
+ adjusted_boot_notes += adjust;
+
+ printk_spew("entry = 0x%08lx\n", (unsigned long)entry);
+ printk_spew("lb_start = 0x%08lx\n", lb_start);
+ printk_spew("lb_size = 0x%08lx\n", lb_size);
+ printk_spew("adjust = 0x%08lx\n", adjust);
+ printk_spew("buffer = 0x%08lx\n", buffer);
+ printk_spew(" elf_boot_notes = 0x%08lx\n", (unsigned long)&elf_boot_notes);
+ printk_spew("adjusted_boot_notes = 0x%08lx\n", adjusted_boot_notes);
+
+ /* Jump to kernel */
+ __asm__ __volatile__(
+ " cld \n\t"
+ /* Save the callee save registers... */
+ " pushl %%esi\n\t"
+ " pushl %%edi\n\t"
+ " pushl %%ebx\n\t"
+ /* Save the parameters I was passed */
+ " pushl $0\n\t" /* 20 adjust */
+ " pushl %0\n\t" /* 16 lb_start */
+ " pushl %1\n\t" /* 12 buffer */
+ " pushl %2\n\t" /* 8 lb_size */
+ " pushl %3\n\t" /* 4 entry */
+ " pushl %4\n\t" /* 0 elf_boot_notes */
+ /* Compute the adjustment */
+ " xorl %%eax, %%eax\n\t"
+ " subl 16(%%esp), %%eax\n\t"
+ " addl 12(%%esp), %%eax\n\t"
+ " addl 8(%%esp), %%eax\n\t"
+ " movl %%eax, 20(%%esp)\n\t"
+ /* Place a copy of linuxBIOS in it's new location */
+ /* Move ``longs'' the linuxBIOS size is 4 byte aligned */
+ " movl 12(%%esp), %%edi\n\t"
+ " addl 8(%%esp), %%edi\n\t"
+ " movl 16(%%esp), %%esi\n\t"
+ " movl 8(%%esp), %%ecx\n\n"
+ " shrl $2, %%ecx\n\t"
+ " rep movsl\n\t"
+
+ /* Adjust the stack pointer to point into the new linuxBIOS image */
+ " addl 20(%%esp), %%esp\n\t"
+ /* Adjust the instruction pointer to point into the new linuxBIOS image */
+ " movl $1f, %%eax\n\t"
+ " addl 20(%%esp), %%eax\n\t"
+ " jmp *%%eax\n\t"
+ "1: \n\t"
+
+ /* Copy the linuxBIOS bounce buffer over linuxBIOS */
+ /* Move ``longs'' the linuxBIOS size is 4 byte aligned */
+ " movl 16(%%esp), %%edi\n\t"
+ " movl 12(%%esp), %%esi\n\t"
+ " movl 8(%%esp), %%ecx\n\t"
+ " shrl $2, %%ecx\n\t"
+ " rep movsl\n\t"
+
+ /* Now jump to the loaded image */
+ " movl $0x0E1FB007, %%eax\n\t"
+ " movl 0(%%esp), %%ebx\n\t"
+ " call *4(%%esp)\n\t"
+
+ /* The loaded image returned? */
+ " cli \n\t"
+ " cld \n\t"
+
+ /* Copy the saved copy of linuxBIOS where linuxBIOS runs */
+ /* Move ``longs'' the linuxBIOS size is 4 byte aligned */
+ " movl 16(%%esp), %%edi\n\t"
+ " movl 12(%%esp), %%esi\n\t"
+ " addl 8(%%esp), %%esi\n\t"
+ " movl 8(%%esp), %%ecx\n\t"
+ " shrl $2, %%ecx\n\t"
+ " rep movsl\n\t"
+
+ /* Adjust the stack pointer to point into the old linuxBIOS image */
+ " subl 20(%%esp), %%esp\n\t"
+
+ /* Adjust the instruction pointer to point into the old linuxBIOS image */
+ " movl $1f, %%eax\n\t"
+ " subl 20(%%esp), %%eax\n\t"
+ " jmp *%%eax\n\t"
+ "1: \n\t"
+
+ /* Drop the parameters I was passed */
+ " addl $24, %%esp\n\t"
+
+ /* Restore the callee save registers */
+ " popl %%ebx\n\t"
+ " popl %%edi\n\t"
+ " popl %%esi\n\t"
+
+ ::
+ "g" (lb_start), "g" (buffer), "g" (lb_size),
+ "g" (entry), "g"(adjusted_boot_notes)
+ );
+}
+
+
diff --git a/src/arch/i386/boot/linuxbios_table.c b/src/arch/i386/boot/linuxbios_table.c
new file mode 100644
index 0000000..1925f2d
--- /dev/null
+++ b/src/arch/i386/boot/linuxbios_table.c
@@ -0,0 +1,281 @@
+#include <console/console.h>
+#include <mem.h>
+#include <ip_checksum.h>
+#include <boot/linuxbios_tables.h>
+#include "linuxbios_table.h"
+#include <string.h>
+#include <version.h>
+
+
+struct lb_header *lb_table_init(unsigned long addr)
+{
+ struct lb_header *header;
+
+ /* 16 byte align the address */
+ addr += 15;
+ addr &= ~15;
+
+ header = (void *)addr;
+ header->signature[0] = 'L';
+ header->signature[1] = 'B';
+ header->signature[2] = 'I';
+ header->signature[3] = 'O';
+ header->header_bytes = sizeof(*header);
+ header->header_checksum = 0;
+ header->table_bytes = 0;
+ header->table_checksum = 0;
+ header->table_entries = 0;
+ return header;
+}
+
+struct lb_record *lb_first_record(struct lb_header *header)
+{
+ struct lb_record *rec;
+ rec = (void *)(((char *)header) + sizeof(*header));
+ return rec;
+}
+
+struct lb_record *lb_last_record(struct lb_header *header)
+{
+ struct lb_record *rec;
+ rec = (void *)(((char *)header) + sizeof(*header) + header->table_bytes);
+ return rec;
+}
+
+struct lb_record *lb_next_record(struct lb_record *rec)
+{
+ rec = (void *)(((char *)rec) + rec->size);
+ return rec;
+}
+
+struct lb_record *lb_new_record(struct lb_header *header)
+{
+ struct lb_record *rec;
+ rec = lb_last_record(header);
+ if (header->table_entries) {
+ header->table_bytes += rec->size;
+ }
+ rec = lb_last_record(header);
+ header->table_entries++;
+ rec->tag = LB_TAG_UNUSED;
+ rec->size = sizeof(*rec);
+ return rec;
+}
+
+
+struct lb_memory *lb_memory(struct lb_header *header)
+{
+ struct lb_record *rec;
+ struct lb_memory *mem;
+ rec = lb_new_record(header);
+ mem = (struct lb_memory *)rec;
+ mem->tag = LB_TAG_MEMORY;
+ mem->size = sizeof(*mem);
+ return mem;
+}
+
+struct lb_mainboard *lb_mainboard(struct lb_header *header)
+{
+ struct lb_record *rec;
+ struct lb_mainboard *mainboard;
+ rec = lb_new_record(header);
+ mainboard = (struct lb_mainboard *)rec;
+ mainboard->tag = LB_TAG_MAINBOARD;
+
+ mainboard->size = (sizeof(*mainboard) +
+ strlen(mainboard_vendor) + 1 +
+ strlen(mainboard_part_number) + 1 +
+ 3) & ~3;
+
+ mainboard->vendor_idx = 0;
+ mainboard->part_number_idx = strlen(mainboard_vendor) + 1;
+
+ memcpy(mainboard->strings + mainboard->vendor_idx,
+ mainboard_vendor, strlen(mainboard_vendor) + 1);
+ memcpy(mainboard->strings + mainboard->part_number_idx,
+ mainboard_part_number, strlen(mainboard_part_number) + 1);
+
+ return mainboard;
+}
+
+void lb_strings(struct lb_header *header)
+{
+ static const struct {
+ uint32_t tag;
+ const uint8_t *string;
+ } strings[] = {
+ { LB_TAG_VERSION, linuxbios_version, },
+ { LB_TAG_EXTRA_VERSION, linuxbios_extra_version, },
+ { LB_TAG_BUILD, linuxbios_build, },
+ { LB_TAG_COMPILE_TIME, linuxbios_compile_time, },
+ { LB_TAG_COMPILE_BY, linuxbios_compile_by, },
+ { LB_TAG_COMPILE_HOST, linuxbios_compile_host, },
+ { LB_TAG_COMPILE_DOMAIN, linuxbios_compile_domain, },
+ { LB_TAG_COMPILER, linuxbios_compiler, },
+ { LB_TAG_LINKER, linuxbios_linker, },
+ { LB_TAG_ASSEMBLER, linuxbios_assembler, },
+ };
+ int i;
+ for(i = 0; i < sizeof(strings)/sizeof(strings[0]); i++) {
+ struct lb_string *rec;
+ size_t len;
+ rec = (struct lb_string *)lb_new_record(header);
+ len = strlen(strings[i].string);
+ rec->tag = strings[i].tag;
+ rec->size = (sizeof(*rec) + len + 1 + 3) & ~3;
+ memcpy(rec->string, strings[i].string, len+1);
+ }
+
+}
+
+/* Some version of gcc have problems with 64 bit types so
+ * take an unsigned long instead of a uint64_t for now.
+ */
+void lb_memory_range(struct lb_memory *mem,
+ uint32_t type, unsigned long start, unsigned long size)
+{
+ int entries;
+ entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]);
+ mem->map[entries].start = start;
+ mem->map[entries].size = size;
+ mem->map[entries].type = type;
+ mem->size += sizeof(mem->map[0]);
+}
+
+static void lb_memory_rangek(struct lb_memory *mem,
+ uint32_t type, unsigned long startk, unsigned long endk)
+{
+ int entries;
+ entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]);
+ mem->map[entries].start = startk;
+ mem->map[entries].start <<= 10;
+ mem->map[entries].size = endk - startk;
+ mem->map[entries].size <<= 10;
+ mem->map[entries].type = type;
+ mem->size += sizeof(mem->map[0]);
+}
+
+static void lb_reserve_table_memory(struct lb_header *head)
+{
+ struct lb_record *last_rec;
+ struct lb_memory *mem;
+ uint64_t start;
+ uint64_t end;
+ int i, entries;
+
+ last_rec = lb_last_record(head);
+ mem = get_lb_mem();
+ start = (unsigned long)head;
+ end = (unsigned long)last_rec;
+ entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]);
+ /* Resize the right two memory areas so this table is in
+ * a reserved area of memory. Everything has been carefully
+ * setup so that is all we need to do.
+ */
+ for(i = 0; i < entries; i++ ) {
+ uint64_t map_start = mem->map[i].start;
+ uint64_t map_end = map_start + mem->map[i].size;
+ /* Does this area need to be expanded? */
+ if (map_end == start) {
+ mem->map[i].size = end - map_start;
+ }
+ /* Does this area need to be contracted? */
+ else if (map_start == start) {
+ mem->map[i].start = end;
+ mem->map[i].size = map_end - end;
+ }
+ }
+}
+
+
+unsigned long lb_table_fini(struct lb_header *head)
+{
+ struct lb_record *rec, *first_rec;
+ rec = lb_last_record(head);
+ if (head->table_entries) {
+ head->table_bytes += rec->size;
+ }
+ lb_reserve_table_memory(head);
+ first_rec = lb_first_record(head);
+ head->table_checksum = compute_ip_checksum(first_rec, head->table_bytes);
+ head->header_checksum = 0;
+ head->header_checksum = compute_ip_checksum(head, sizeof(*head));
+ printk_debug("Wrote linuxbios table at: %p - %p checksum %lx\n",
+ head, rec, head->table_checksum);
+ return (unsigned long)rec;
+}
+
+
+/* Routines to extract part so the linuxBIOS table or
+ * information from the linuxBIOS table after we have written it.
+ * Currently get_lb_mem relies on a global we can change the
+ * implementaiton.
+ */
+static struct lb_memory *mem_ranges = 0;
+struct lb_memory *get_lb_mem(void)
+{
+ return mem_ranges;
+}
+
+unsigned long write_linuxbios_table(
+ unsigned long *processor_map,
+ struct mem_range *ram,
+ unsigned long low_table_start, unsigned long low_table_end,
+ unsigned long rom_table_startk, unsigned long rom_table_endk)
+{
+ unsigned long table_size;
+ struct mem_range *ramp;
+ struct lb_header *head;
+ struct lb_memory *mem;
+ struct lb_record *rec_dest, *rec_src;
+
+ head = lb_table_init(low_table_end);
+ low_table_end = (unsigned long)head;
+#if HAVE_OPTION_TABLE == 1
+ /* Write the option config table... */
+ rec_dest = lb_new_record(head);
+ rec_src = (struct lb_record *)&option_table;
+ memcpy(rec_dest, rec_src, rec_src->size);
+#endif
+ mem = lb_memory(head);
+ mem_ranges = mem;
+ /* I assume there is always ram at address 0 */
+ /* Reserve our tables in low memory */
+ table_size = (low_table_end - low_table_start);
+ lb_memory_range(mem, LB_MEM_TABLE, 0, table_size);
+ lb_memory_range(mem, LB_MEM_RAM, table_size, (ram[0].sizek << 10) - table_size);
+ /* Reserving pci memory mapped space will keep the kernel from booting seeing
+ * any pci resources.
+ */
+ for(ramp = &ram[1]; ramp->sizek; ramp++) {
+ unsigned long startk, endk;
+ startk = ramp->basek;
+ endk = startk + ramp->sizek;
+ if ((startk < rom_table_startk) && (endk > rom_table_startk)) {
+ lb_memory_rangek(mem, LB_MEM_RAM, startk, rom_table_startk);
+ startk = rom_table_startk;
+ }
+ if ((startk == rom_table_startk) && (endk > startk)) {
+ unsigned long tend;
+ tend = rom_table_endk;
+ if (tend > endk) {
+ tend = endk;
+ }
+ lb_memory_rangek(mem, LB_MEM_TABLE, rom_table_startk, tend);
+ startk = tend;
+ }
+ if (endk > startk) {
+ lb_memory_rangek(mem, LB_MEM_RAM, startk, endk);
+ }
+ }
+
+ /* Record our motheboard */
+ lb_mainboard(head);
+ /* Record our various random string information */
+ lb_strings(head);
+
+ low_table_end = lb_table_fini(head);
+
+ /* Remember where my valid memory ranges are */
+ return low_table_end;
+}
diff --git a/src/arch/i386/boot/linuxbios_table.h b/src/arch/i386/boot/linuxbios_table.h
new file mode 100644
index 0000000..42c0a07
--- /dev/null
+++ b/src/arch/i386/boot/linuxbios_table.h
@@ -0,0 +1,33 @@
+#ifndef LINUXBIOS_TABLE_H
+#define LINUXBIOS_TABLE_H
+
+#include <boot/linuxbios_tables.h>
+
+struct mem_range;
+
+/* This file holds function prototypes for building the linuxbios table. */
+unsigned long write_linuxbios_table(
+ unsigned long *processor_map,
+ struct mem_range *ram,
+ unsigned long low_table_start, unsigned long low_table_end,
+ unsigned long rom_table_start, unsigned long rom_table_end);
+
+struct lb_header *lb_table_init(unsigned long addr);
+struct lb_record *lb_first_record(struct lb_header *header);
+struct lb_record *lb_last_record(struct lb_header *header);
+struct lb_record *lb_next_record(struct lb_record *rec);
+struct lb_record *lb_new_record(struct lb_header *header);
+struct lb_memory *lb_memory(struct lb_header *header);
+void lb_memory_range(struct lb_memory *mem,
+ uint32_t type, unsigned long startk, unsigned long sizek);
+struct lb_mainboard *lb_mainboard(struct lb_header *header);
+unsigned long lb_table_fini(struct lb_header *header);
+
+/* Routines to extract part so the linuxBIOS table or information
+ * from the linuxBIOS table.
+ */
+struct lb_memory *get_lb_mem(void);
+
+extern struct cmos_option_table option_table;
+
+#endif /* LINUXBIOS_TABLE_H */
diff --git a/src/arch/i386/boot/pirq_routing.c b/src/arch/i386/boot/pirq_routing.c
new file mode 100644
index 0000000..a7325c4
--- /dev/null
+++ b/src/arch/i386/boot/pirq_routing.c
@@ -0,0 +1,93 @@
+#include <console/console.h>
+#include <arch/pirq_routing.h>
+#include <string.h>
+
+#ifdef DEBUG
+void check_pirq_routing_table(void)
+{
+ const u8 *addr;
+ const struct irq_routing_table *rt;
+ int i;
+ u8 sum;
+
+ printk_info("Checking IRQ routing tables...\n");
+
+#ifdef(IRQ_SLOT_COUNT)
+ if (sizeof(intel_irq_routing_table) != intel_irq_routing_table.size) {
+ printk_warning("Inconsistent IRQ routing table size\n");
+ }
+#endif
+
+ rt = &intel_irq_routing_table;
+ addr = (u8 *)rt;
+
+ sum = 0;
+ for (i = 0; i < rt->size; i++)
+ sum += addr[i];
+
+ printk_debug("%s:%6d:%s() - irq_routing_table located at: 0x%p\n",
+ __FILE__, __LINE__, __FUNCTION__, addr);
+
+ sum = (unsigned char)(rt->checksum-sum);
+
+ if (sum != rt->checksum) {
+ printk_warning("%s:%6d:%s() - "
+ "checksum is: 0x%02x but should be: 0x%02x\n",
+ __FILE__, __LINE__, __FUNCTION__, rt->checksum, sum);
+ }
+
+ if (rt->signature != PIRQ_SIGNATURE || rt->version != PIRQ_VERSION ||
+ rt->size % 16 || rt->size < sizeof(struct irq_routing_table)) {
+ printk_warning("%s:%6d:%s() - "
+ "Interrupt Routing Table not valid\n",
+ __FILE__, __LINE__, __FUNCTION__);
+ return;
+ }
+
+ sum = 0;
+ for (i=0; i<rt->size; i++)
+ sum += addr[i];
+
+ if (sum) {
+ printk_warning("%s:%6d:%s() - "
+ "checksum error in irq routing table\n",
+ __FILE__, __LINE__, __FUNCTION__);
+ }
+
+ printk_info("done.\n");
+}
+
+int verify_copy_pirq_routing_table(unsigned long addr)
+{
+ int i;
+ u8 *rt_orig, *rt_curr;
+
+ rt_curr = (u8*)addr;
+ rt_orig = (u8*)&intel_irq_routing_table;
+ printk_info("Verifing priq routing tables copy at 0x%x...", addr);
+ for (i = 0; i < intel_irq_routing_table.size; i++) {
+ if (*(rt_curr + i) != *(rt_orig + i)) {
+ printk_info("failed\n");
+ return -1;
+ }
+ }
+ printk_info("succeed\n");
+ return 0;
+}
+#else
+#define verify_copy_pirq_routing_table(addr)
+#endif
+
+unsigned long copy_pirq_routing_table(unsigned long addr)
+{
+ /* Align the table to be 16 byte aligned. */
+ addr += 15;
+ addr &= ~15;
+
+ /* This table must be betweeen 0xf0000 & 0x100000 */
+ printk_info("Copying IRQ routing tables to 0x%x...", addr);
+ memcpy((void *)addr, &intel_irq_routing_table, intel_irq_routing_table.size);
+ printk_info("done.\n");
+ verify_copy_pirq_routing_table(addr);
+ return addr + intel_irq_routing_table.size;
+}
diff --git a/src/arch/i386/boot/tables.c b/src/arch/i386/boot/tables.c
new file mode 100644
index 0000000..07579fe
--- /dev/null
+++ b/src/arch/i386/boot/tables.c
@@ -0,0 +1,69 @@
+#include <console/console.h>
+#include <mem.h>
+#include <cpu/cpu.h>
+#include <boot/tables.h>
+#include <boot/linuxbios_tables.h>
+#include <arch/pirq_routing.h>
+#include <arch/smp/mpspec.h>
+#include "linuxbios_table.h"
+
+#if CONFIG_SMP && CONFIG_MAX_PHYSICAL_CPUS && (CONFIG_MAX_PHYSICAL_CPUS < CONFIG_MAX_CPUS)
+static void remove_logical_cpus(unsigned long *processor_map)
+{
+ /* To turn off hyperthreading just remove the logical
+ * cpus from the processor map.
+ */
+ int disable_logical_cpus = !CONFIG_LOGICAL_CPUS;
+ if (get_option(&disable_logical_cpus,"hyper_threading")) {
+ disable_logical_cpus = !CONFIG_LOGICAL_CPUS;
+ }
+ if (disable_logical_cpus) {
+ /* disable logical cpus */
+ int cnt;
+ for(cnt=MAX_PHYSICAL_CPUS;cnt<MAX_CPUS;cnt++)
+ processor_map[cnt]=0;
+ printk_debug("logical cpus disabled\n");
+ }
+}
+#else
+
+#define remove_logical_cpus(processor_map) do {} while(0)
+
+#endif /* CONFIG_SMP && CONFIG_MAX_PHYSICAL_CPUS */
+
+struct lb_memory *write_tables(struct mem_range *mem, unsigned long *processor_map)
+{
+ unsigned long low_table_start, low_table_end;
+ unsigned long rom_table_start, rom_table_end;
+
+ rom_table_start = 0xf0000;
+ rom_table_end = 0xf0000;
+ /* Start low addr at 16 bytes instead of 0 because of a buglet
+ * in the generic linux unzip code, as it tests for the a20 line.
+ */
+ low_table_start = 0;
+ low_table_end = 16;
+
+ post_code(0x9a);
+ check_pirq_routing_table();
+ /* This table must be betweeen 0xf0000 & 0x100000 */
+ rom_table_end = copy_pirq_routing_table(rom_table_end);
+ rom_table_end = (rom_table_end + 1023) & ~1023;
+
+ /* copy the smp block to address 0 */
+ post_code(0x96);
+ /* The smp table must be in 0-1K, 639K-640K, or 960K-1M */
+ remove_logical_cpus(processor_map);
+ low_table_end = write_smp_table(low_table_end, processor_map);
+
+ /* Don't write anything in the traditional x86 BIOS data segment */
+ if (low_table_end < 0x500) {
+ low_table_end = 0x500;
+ }
+ /* The linuxbios table must be in 0-4K or 960K-1M */
+ write_linuxbios_table(processor_map, mem,
+ low_table_start, low_table_end,
+ rom_table_start >> 10, rom_table_end >> 10);
+
+ return get_lb_mem();
+}