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[FREELDR:PC98] Report a more detailed system ID for sysdm control panel (#9194)

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Report the machine model name for better user experience.

CORE-17977
This commit is contained in:
Dmitry Borisov
2026-06-22 18:06:15 +06:00
committed by GitHub
parent 13364f7be6
commit 4c2fa234c4
1 changed files with 67 additions and 1 deletions
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68
boot/freeldr/freeldr/arch/i386/pc98/pc98hw.c
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@@ -1161,6 +1161,72 @@ DetectPnpBios(PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
(*BusNumber)++;
}
static
PCSTR
GetPc9821SystemIdentifier(
_In_ UCHAR Id)
{
switch (Id)
{
case 0x27: return "Lt2";
case 0x30: return "Cx3";
case 0x40: return "Ct16";
case 0x59: return "V166";
case 0x5F: return "Nr166";
case 0x73: return "Ra333";
default: return NULL;
}
}
static
VOID
CreateSystemKey(
_Inout_ PCONFIGURATION_COMPONENT_DATA* SystemKey)
{
const ULONG IdentifierSize = 256;
PCHAR Identifier;
/* The kernel expects the PC-98 identifier string to begin with 'NEC PC-98' */
#define PC98_DEFAULT_ID "NEC PC-98"
Identifier = FrLdrHeapAlloc(IdentifierSize, TAG_HW_RESOURCE_LIST);
if (!Identifier)
return;
/* Check if this machine is NEC PC-9821 */
if (*(PUSHORT)MEM_EXTENDED_NORMAL == 0x2198)
{
UCHAR Id = *((PUCHAR)MEM_EXTENDED_NORMAL + 0x3F);
PCSTR IdString;
IdString = GetPc9821SystemIdentifier(Id);
if (!IdString)
{
/* Unknown values should be visible in sysdm control panel for bug reports */
ERR("Unknown PC-9821 model %02X\n", Id);
RtlStringCbPrintfA(Identifier,
IdentifierSize,
PC98_DEFAULT_ID "21 Unknown model %02X",
Id);
}
else
{
RtlStringCbPrintfA(Identifier,
IdentifierSize,
PC98_DEFAULT_ID "21 %s",
IdString);
}
}
else
{
RtlStringCbCopyA(Identifier, IdentifierSize, PC98_DEFAULT_ID);
}
TRACE("System identifier '%s'\n", Identifier);
FldrCreateSystemKey(SystemKey, Identifier);
FrLdrHeapFree(Identifier, TAG_HW_RESOURCE_LIST);
}
PCONFIGURATION_COMPONENT_DATA
Pc98HwDetect(
_In_opt_ PCSTR Options)
@@ -1171,7 +1237,7 @@ Pc98HwDetect(
TRACE("DetectHardware()\n");
/* Create the 'System' key */
FldrCreateSystemKey(&SystemKey, "NEC PC-98");
CreateSystemKey(&SystemKey);
GetHarddiskConfigurationData = Pc98GetHarddiskConfigurationData;