// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2006 Fabrice Bellard
//
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
#include "util.h" // dprintf
#include "memmap.h" // bios_table_cur_addr
+#include "biosvar.h" // GET_EBDA
/****************************************************************
* UUID probe
****************************************************************/
+#define QEMU_CFG_SIGNATURE 0x00
+#define QEMU_CFG_ID 0x01
+#define QEMU_CFG_UUID 0x02
+
+static void
+qemu_cfg_read(u8 *buf, u16 f, int len)
+{
+ outw(f, PORT_QEMU_CFG_CTL);
+ while (len--)
+ *(buf++) = inb(PORT_QEMU_CFG_DATA);
+}
+
+static int
+qemu_cfg_port_probe()
+{
+ u8 sig[4] = "QEMU";
+ u8 buf[4];
+ qemu_cfg_read(buf, QEMU_CFG_SIGNATURE, 4);
+ return *(u32*)buf == *(u32*)sig;
+}
+
static void
uuid_probe(u8 *bios_uuid)
{
// Default to UUID not set
memset(bios_uuid, 0, 16);
- if (! CONFIG_QEMU)
+ if (! CONFIG_UUID_BACKDOOR)
return;
-
- // check if backdoor port exists
- u32 eax, ebx, ecx, edx;
- asm volatile ("outl %%eax, %%dx"
- : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (0x564d5868), "c" (0xa), "d" (0x5658));
- if (ebx != 0x564d5868)
+ if (CONFIG_COREBOOT)
+ return;
+ if (! qemu_cfg_port_probe())
+ // Feature not available
return;
- u32 *uuid_ptr = (u32 *)bios_uuid;
- // get uuid
- asm volatile ("outl %%eax, %%dx"
- : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
- : "a" (0x564d5868), "c" (0x13), "d" (0x5658));
- uuid_ptr[0] = eax;
- uuid_ptr[1] = ebx;
- uuid_ptr[2] = ecx;
- uuid_ptr[3] = edx;
+ qemu_cfg_read(bios_uuid, QEMU_CFG_UUID, 16);
}
u32 structure_table_address;
u16 number_of_structures;
u8 smbios_bcd_revision;
-} __attribute__((__packed__));
+} PACKED;
/* This goes at the beginning of every SMBIOS structure. */
struct smbios_structure_header {
u8 type;
u8 length;
u16 handle;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 0 - BIOS Information */
struct smbios_type_0 {
u8 system_bios_minor_release;
u8 embedded_controller_major_release;
u8 embedded_controller_minor_release;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 1 - System Information */
struct smbios_type_1 {
u8 wake_up_type;
u8 sku_number_str;
u8 family_str;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 3 - System Enclosure (v2.3) */
struct smbios_type_3 {
u8 number_of_power_cords;
u8 contained_element_count;
// contained elements follow
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 4 - Processor Information (v2.0) */
struct smbios_type_4 {
u16 current_speed;
u8 status;
u8 processor_upgrade;
-} __attribute__((__packed__));
+ u16 l1_cache_handle;
+ u16 l2_cache_handle;
+ u16 l3_cache_handle;
+} PACKED;
/* SMBIOS type 16 - Physical Memory Array
* Associated with one type 17 (Memory Device).
u32 maximum_capacity;
u16 memory_error_information_handle;
u16 number_of_memory_devices;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 17 - Memory Device
* Associated with one type 19
u8 bank_locator_str;
u8 memory_type;
u16 type_detail;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 19 - Memory Array Mapped Address */
struct smbios_type_19 {
u32 ending_address;
u16 memory_array_handle;
u8 partition_width;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 20 - Memory Device Mapped Address */
struct smbios_type_20 {
u8 partition_row_position;
u8 interleave_position;
u8 interleaved_data_depth;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 32 - System Boot Information */
struct smbios_type_32 {
struct smbios_structure_header header;
u8 reserved[6];
u8 boot_status;
-} __attribute__((__packed__));
+} PACKED;
/* SMBIOS type 127 -- End-of-table */
struct smbios_type_127 {
struct smbios_structure_header header;
-} __attribute__((__packed__));
+} PACKED;
/****************************************************************
p->bios_release_date_str = 2;
p->bios_rom_size = 0; /* FIXME */
- memset(p->bios_characteristics, 0, 7);
- p->bios_characteristics[7] = 0x08; /* BIOS characteristics not supported */
+ memset(p->bios_characteristics, 0, sizeof(p->bios_characteristics));
+ p->bios_characteristics[0] = 0x08; /* BIOS characteristics not supported */
p->bios_characteristics_extension_bytes[0] = 0;
p->bios_characteristics_extension_bytes[1] = 0;
p->status = 0x41; /* socket populated, CPU enabled */
p->processor_upgrade = 0x01; /* other */
+ p->l1_cache_handle = 0xffff; /* cache information structure not provided */
+ p->l2_cache_handle = 0xffff;
+ p->l3_cache_handle = 0xffff;
+
start += sizeof(struct smbios_type_4);
memcpy((char *)start, "CPU " "\0" "" "\0" "", 7);
/* Type 16 -- Physical Memory Array */
static void *
-smbios_type_16_init(void *start, u32 memsize)
+smbios_type_16_init(void *start)
{
struct smbios_type_16 *p = (struct smbios_type_16*)start;
p->location = 0x01; /* other */
p->use = 0x03; /* system memory */
p->error_correction = 0x01; /* other */
- p->maximum_capacity = memsize * 1024;
+ u64 memsize = RamSize + RamSizeOver4G;
+ p->maximum_capacity = memsize / 1024;
p->memory_error_information_handle = 0xfffe; /* none provided */
p->number_of_memory_devices = 1;
/* Type 17 -- Memory Device */
static void *
-smbios_type_17_init(void *start, u32 memory_size_mb)
+smbios_type_17_init(void *start)
{
struct smbios_type_17 *p = (struct smbios_type_17 *)start;
p->data_width = 64;
/* truncate memory_size_mb to 16 bits and clear most significant
bit [indicates size in MB] */
- p->size = (u16) memory_size_mb & 0x7fff;
+ u64 memsize = RamSize + RamSizeOver4G;
+ p->size = (u16) (memsize / (1024*1024)) & 0x7fff;
p->form_factor = 0x09; /* DIMM */
p->device_set = 0;
p->device_locator_str = 1;
/* Type 19 -- Memory Array Mapped Address */
static void *
-smbios_type_19_init(void *start, u32 memory_size_mb)
+smbios_type_19_init(void *start)
{
struct smbios_type_19 *p = (struct smbios_type_19 *)start;
p->header.handle = 0x1300;
p->starting_address = 0;
- p->ending_address = (memory_size_mb-1) * 1024;
+ u64 memsize = RamSizeOver4G;
+ if (memsize)
+ memsize += 0x100000000ull;
+ else
+ memsize = RamSize;
+ p->ending_address = memsize / 1024 - 1;
p->memory_array_handle = 0x1000;
p->partition_width = 1;
/* Type 20 -- Memory Device Mapped Address */
static void *
-smbios_type_20_init(void *start, u32 memory_size_mb)
+smbios_type_20_init(void *start)
{
struct smbios_type_20 *p = (struct smbios_type_20 *)start;
p->header.handle = 0x1400;
p->starting_address = 0;
- p->ending_address = (memory_size_mb-1)*1024;
+ u64 memsize = RamSizeOver4G;
+ if (memsize)
+ memsize += 0x100000000ull;
+ else
+ memsize = RamSize;
+ p->ending_address = memsize / 1024 - 1;
p->memory_device_handle = 0x1100;
p->memory_array_mapped_address_handle = 0x1300;
p->partition_row_position = 1;
void
smbios_init(void)
{
+ if (! CONFIG_SMBIOS)
+ return;
+
+ dprintf(3, "init SMBIOS tables\n");
+
unsigned cpu_num, nr_structs = 0, max_struct_size = 0;
char *start, *p, *q;
- int memsize = GET_EBDA(ram_size) / (1024 * 1024);
bios_table_cur_addr = ALIGN(bios_table_cur_addr, 16);
start = (void *)(bios_table_cur_addr);
int smp_cpus = smp_probe();
for (cpu_num = 1; cpu_num <= smp_cpus; cpu_num++)
add_struct(smbios_type_4_init(p, cpu_num));
- add_struct(smbios_type_16_init(p, memsize));
- add_struct(smbios_type_17_init(p, memsize));
- add_struct(smbios_type_19_init(p, memsize));
- add_struct(smbios_type_20_init(p, memsize));
+ add_struct(smbios_type_16_init(p));
+ add_struct(smbios_type_17_init(p));
+ add_struct(smbios_type_19_init(p));
+ add_struct(smbios_type_20_init(p));
add_struct(smbios_type_32_init(p));
add_struct(smbios_type_127_init(p));
projects / seabios.git / blobdiff