Commit 95be58df authored by Ivan Khoronzhuk's avatar Ivan Khoronzhuk Committed by Matt Fleming
Browse files

firmware: dmi_scan: Use full dmi version for SMBIOS3 



New SMBIOS3 spec adds additional field for versioning - docrev.
The docrev identifies the revision of a specification implemented in
the table structures, so display SMBIOSv3 versions in format,
like "3.22.1".

In case of only 32 bit entry point for versions > 3 display
dmi version like "3.22.x" as we don't know the docrev.

In other cases display version like it was.

Signed-off-by: default avatarIvan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
parent 9eccca08

drivers/firmware/dmi_scan.c

+12 −8
Original line number Diff line number Diff line
@@ -17,7 +17,7 @@ 
 */

static const char dmi_empty_string[] = "        ";



static u16 __initdata dmi_ver;

static u32 dmi_ver __initdata;

/*

 * Catch too early calls to dmi_check_system():

 */
@@ -198,7 +198,7 @@ static void __init dmi_save_uuid(const struct dmi_header *dm, int slot, 
	 * the UUID are supposed to be little-endian encoded.  The specification

	 * says that this is the defacto standard.

	 */

	if (dmi_ver >= 0x0206)

	if (dmi_ver >= 0x020600)

		sprintf(s, "%pUL", d);

	else

		sprintf(s, "%pUB", d);
@@ -470,7 +470,7 @@ static void __init dmi_format_ids(char *buf, size_t len) 
 */

static int __init dmi_present(const u8 *buf)

{

	int smbios_ver;

	u32 smbios_ver;



	if (memcmp(buf, "_SM_", 4) == 0 &&

	    buf[5] < 32 && dmi_checksum(buf, buf[5])) {
@@ -503,14 +503,16 @@ static int __init dmi_present(const u8 *buf) 
		if (dmi_walk_early(dmi_decode) == 0) {

			if (smbios_ver) {

				dmi_ver = smbios_ver;

				pr_info("SMBIOS %d.%d present.\n",

				       dmi_ver >> 8, dmi_ver & 0xFF);

				pr_info("SMBIOS %d.%d%s present.\n",

					dmi_ver >> 8, dmi_ver & 0xFF,

					(dmi_ver < 0x0300) ? "" : ".x");

			} else {

				dmi_ver = (buf[14] & 0xF0) << 4 |

					   (buf[14] & 0x0F);

				pr_info("Legacy DMI %d.%d present.\n",

				       dmi_ver >> 8, dmi_ver & 0xFF);

			}

			dmi_ver <<= 8;

			dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));

			printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);

			return 0;
@@ -528,7 +530,8 @@ static int __init dmi_smbios3_present(const u8 *buf) 
{

	if (memcmp(buf, "_SM3_", 5) == 0 &&

	    buf[6] < 32 && dmi_checksum(buf, buf[6])) {

		dmi_ver = get_unaligned_be16(buf + 7);

		dmi_ver = get_unaligned_be32(buf + 6);

		dmi_ver &= 0xFFFFFF;

		dmi_len = get_unaligned_le32(buf + 12);

		dmi_base = get_unaligned_le64(buf + 16);
@@ -545,8 +548,9 @@ static int __init dmi_smbios3_present(const u8 *buf) 
		dmi_num = dmi_len / 4;



		if (dmi_walk_early(dmi_decode) == 0) {

			pr_info("SMBIOS %d.%d present.\n",

				dmi_ver >> 8, dmi_ver & 0xFF);

			pr_info("SMBIOS %d.%d.%d present.\n",

				dmi_ver >> 16, (dmi_ver >> 8) & 0xFF,

				dmi_ver & 0xFF);

			dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));

			pr_debug("DMI: %s\n", dmi_ids_string);

			return 0;

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