[dmidecode] [PATCH] dmioem: Decode HP-specific DMI types 212 and 219

[Jean Delvare]

Some information about OEM DMI types 212 and 219 for HP machines is
available from the hpwdt kernel driver. Include the available
information in the output of dmidecode.
---
Sample outputs:

Handle 0xD400, DMI type 212, 24 bytes
HP 64-bit CRU Information
        Signature: 0x55524324 ($CRU)
        Physical Address: 0x00000000fff92000
        Length: 0x00004000

Handle 0x004D, DMI type 219, 32 bytes
HP ProLiant Information
        Power Features: 0x000000df
        Omega Features: 0x0000000f
        Misc. Features: 0x00003807
                iCRU: Yes
                UEFI: No

Tom, please let me know if you think the wording or output can be
improved in any way.

 dmioem.c |   55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

--- dmidecode.orig/dmioem.c     2015-05-13 10:32:01.628413352 +0200
+++ dmidecode/dmioem.c  2015-05-13 10:38:00.257085027 +0200
@@ -62,6 +62,17 @@ void dmi_set_vendor(const char *s)
                dmi_vendor = VENDOR_ACER;
 }
 
+static int is_printable(const u8 *data, int len)
+{
+       int i;
+
+       for (i = 0; i < len; i++)
+               if (data[i] < 32 || data[i] >= 127)
+                       return 0;
+
+       return 1;
+}
+
 /*
  * HP-specific data structures are decoded here.
  *
@@ -72,6 +83,7 @@ static int dmi_decode_hp(const struct dm
 {
        u8 *data = h->data;
        int nic, ptr;
+       u32 feat;
 
        switch (h->type)
        {
@@ -124,6 +136,49 @@ static int dmi_decode_hp(const struct dm
                        }
                        break;
 
+               case 212:
+                       /*
+                        * Vendor Specific: HP 64-bit CRU Information
+                        *
+                        * Source: hpwdt kernel driver
+                        */
+                       printf("HP 64-bit CRU Information\n");
+                       if (h->length < 0x18) break;
+                       printf("\tSignature: 0x%08x", DWORD(data + 0x04));
+                       if (is_printable(data + 0x04, 4))
+                               printf(" (%c%c%c%c)", data[0x04], data[0x05],
+                                       data[0x06], data[0x07]);
+                       printf("\n");
+                       if (DWORD(data + 0x04) == 0x55524324)
+                       {
+                               u64 paddr = QWORD(data + 0x08);
+                               paddr.l += DWORD(data + 0x14);
+                               if (paddr.l < DWORD(data + 0x14))
+                                       paddr.h++;
+                               printf("\tPhysical Address: 0x%08x%08x\n",
+                                       paddr.h, paddr.l);
+                               printf("\tLength: 0x%08x\n", DWORD(data + 
0x10));
+                       }
+                       break;
+
+               case 219:
+                       /*
+                        * Vendor Specific: HP ProLiant Information
+                        *
+                        * Source: hpwdt kernel driver
+                        */
+                       printf("HP ProLiant Information\n");
+                       if (h->length < 0x08) break;
+                       printf("\tPower Features: 0x%08x\n", DWORD(data + 
0x04));
+                       if (h->length < 0x0C) break;
+                       printf("\tOmega Features: 0x%08x\n", DWORD(data + 
0x08));
+                       if (h->length < 0x14) break;
+                       feat = DWORD(data + 0x10);
+                       printf("\tMisc. Features: 0x%08x\n", feat);
+                       printf("\t\tiCRU: %s\n", feat & 0x0001 ? "Yes" : "No");
+                       printf("\t\tUEFI: %s\n", feat & 0x0408 ? "Yes" : "No");
+                       break;
+
                default:
                        return 0;
        }


-- 
Jean Delvare
SUSE L3 Support