enderice2/Fennix
1
0
Fork 0
mirror of https://github.com/EnderIce2/Fennix.git synced 2025-07-06 04:49:16 +00:00
Code Issues Actions Releases Wiki Activity

SMBIOS support

Browse Source
This commit is contained in:
Alex
2022-11-19 11:32:46 +02:00
parent eb980a95d9
commit 23dba51c01
4 changed files with 489 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
Core/SystemManagementBIOS.cpp Normal file
View File

@ -0,0 +1,70 @@
#include "smbios.hpp"
#include <debug.h>
#include "../kernel.h"
/* https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.2.0.pdf */
namespace SMBIOS
{
bool CheckSMBIOS()
{
if (bInfo->SMBIOSPtr != nullptr && bInfo->SMBIOSPtr < (void *)0xffffffffffff0000)
{
debug("SMBIOS is available (%#lx).", bInfo->SMBIOSPtr);
return true;
}
debug("SMBIOS is not available. (%#lx)", bInfo->SMBIOSPtr);
return false;
}
SMBIOSEntryPoint *GetSMBIOSEntryPoint() { return (SMBIOSEntryPoint *)bInfo->SMBIOSPtr; }
static inline int SMBIOSTableLength(SMBIOSHeader *Hdr)
{
int i;
const char *strtab = (char *)Hdr + Hdr->Length;
for (i = 1; strtab[i - 1] != '\0' || strtab[i] != '\0'; i++)
;
return Hdr->Length + i + 1;
}
void *GetSMBIOSHeader(SMBIOSType Type)
{
if (!CheckSMBIOS())
return nullptr;
SMBIOSEntryPoint *Header = (SMBIOSEntryPoint *)bInfo->SMBIOSPtr;
debug("Getting SMBIOS header for type %d", Type);
struct SMBIOSHeader *hdr = (SMBIOSHeader *)(uint64_t)Header->TableAddress;
for (int i = 0; i <= 11; i++)
{
if (hdr < (void *)(uint64_t)(Header->TableAddress + Header->TableLength))
if (hdr->Type == Type)
{
debug("Found SMBIOS header for type %d at %#lx", Type, hdr);
return hdr;
}
hdr = (struct SMBIOSHeader *)((uint64_t)hdr + SMBIOSTableLength(hdr));
}
return nullptr;
}
SMBIOSBIOSInformation *GetBIOSInformation() { return (SMBIOSBIOSInformation *)GetSMBIOSHeader(SMBIOSTypeBIOSInformation); }
SMBIOSSystemInformation *GetSystemInformation() { return (SMBIOSSystemInformation *)GetSMBIOSHeader(SMBIOSTypeSystemInformation); }
SMBIOSBaseBoardInformation *GetBaseBoardInformation() { return (SMBIOSBaseBoardInformation *)GetSMBIOSHeader(SMBIOSTypeBaseBoardInformation); }
SMBIOSProcessorInformation *GetProcessorInformation() { return (SMBIOSProcessorInformation *)GetSMBIOSHeader(SMBIOSTypeProcessorInformation); }
SMBIOSMemoryArray *GetMemoryArray() { return (SMBIOSMemoryArray *)GetSMBIOSHeader(SMBIOSTypePhysicalMemoryArray); }
SMBIOSMemoryDevice *GetMemoryDevice() { return (SMBIOSMemoryDevice *)GetSMBIOSHeader(SMBIOSTypeMemoryDevice); }
SMBIOSMemoryArrayMappedAddress *GetMemoryArrayMappedAddress() { return (SMBIOSMemoryArrayMappedAddress *)GetSMBIOSHeader(SMBIOSTypeMemoryArrayMappedAddress); }
SMBIOSMemoryDeviceMappedAddress *GetMemoryDeviceMappedAddress() { return (SMBIOSMemoryDeviceMappedAddress *)GetSMBIOSHeader(SMBIOSTypeMemoryDeviceMappedAddress); }
}