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| author |   Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> | 2015-02-18 13:33:20 +0200 |
|---|---|---|
| committer |   Matt Fleming <matt.fleming@intel.com> | 2015-03-26 13:48:15 +0000 |
| commit | 95be58df74a5b21e5a78e45fddb2fd59112524c5 (patch) | |
| tree | def4bffeb711096b0d0e084edc3d8859f79b783d /drivers/firmware | |
| parent | Linux 4.0-rc3 (diff) | |
| download | linux-dev-95be58df74a5b21e5a78e45fddb2fd59112524c5.tar.xz linux-dev-95be58df74a5b21e5a78e45fddb2fd59112524c5.zip | |
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: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 69fac068669f..c8f9e9d3bf91 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -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; |