350 lines
10 KiB
C
350 lines
10 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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ixinfo.c
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Abstract:
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Author:
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Ken Reneris (kenr) 08-Aug-1994
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Environment:
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Kernel mode only.
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Revision History:
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--*/
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#include "halp.h"
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE,HaliQuerySystemInformation)
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#pragma alloc_text(PAGE,HaliSetSystemInformation)
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#pragma alloc_text(INIT,HalInitSystemPhase2)
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#endif
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//
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// NUMA Information.
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//
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extern PVOID HalpAcpiSrat;
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NTSTATUS
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HalpGetAcpiStaticNumaTopology(
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HAL_NUMA_TOPOLOGY_INTERFACE * NumaInfo
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);
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NTSTATUS
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HaliQuerySystemInformation(
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IN HAL_QUERY_INFORMATION_CLASS InformationClass,
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IN ULONG BufferSize,
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OUT PVOID Buffer,
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OUT PULONG ReturnedLength
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)
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{
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NTSTATUS Status;
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PVOID InternalBuffer;
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ULONG Length, PlatformProperties;
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union {
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HAL_POWER_INFORMATION PowerInf;
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HAL_PROCESSOR_SPEED_INFORMATION ProcessorInf;
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HAL_ERROR_INFO ErrorInfo;
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HAL_DISPLAY_BIOS_INFORMATION DisplayBiosInf;
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HAL_PLATFORM_INFORMATION PlatformInfo;
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} U;
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BOOLEAN bUseFrameBufferCaching;
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PAGED_CODE();
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Status = STATUS_SUCCESS;
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*ReturnedLength = 0;
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Length = 0;
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switch (InformationClass) {
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case HalFrameBufferCachingInformation:
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Status = HalpGetPlatformProperties(&PlatformProperties);
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if (NT_SUCCESS(Status) &&
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(PlatformProperties & IPPT_DISABLE_WRITE_COMBINING)) {
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bUseFrameBufferCaching = FALSE;
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} else {
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//
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// Note - we want to return TRUE here to enable USWC in all
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// cases except in a "Shared Memory Cluster" machine.
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//
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Status = STATUS_SUCCESS;
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bUseFrameBufferCaching = TRUE;
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}
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InternalBuffer = &bUseFrameBufferCaching;
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Length = sizeof (BOOLEAN);
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break;
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case HalMcaLogInformation:
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Status = HalpGetMcaLog( Buffer, BufferSize, ReturnedLength );
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break;
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case HalCmcLogInformation:
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Status = HalpGetCmcLog( Buffer, BufferSize, ReturnedLength );
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break;
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case HalCpeLogInformation:
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Status = HalpGetCpeLog( Buffer, BufferSize, ReturnedLength );
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break;
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case HalErrorInformation:
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InternalBuffer = &U.ErrorInfo;
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if ( Buffer && (BufferSize > sizeof(U.ErrorInfo.Version)) ) {
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U.ErrorInfo.Version = ((PHAL_ERROR_INFO)Buffer)->Version;
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Status = HalpGetMceInformation(&U.ErrorInfo, &Length);
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}
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else {
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Status = STATUS_INVALID_PARAMETER;
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}
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break;
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case HalDisplayBiosInformation:
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InternalBuffer = &U.DisplayBiosInf;
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Length = sizeof(U.DisplayBiosInf);
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U.DisplayBiosInf = HalpGetDisplayBiosInformation ();
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break;
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case HalProcessorSpeedInformation:
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RtlZeroMemory (&U.ProcessorInf, sizeof(HAL_PROCESSOR_SPEED_INFORMATION));
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// U.ProcessorInf.MaximumProcessorSpeed = HalpCPUMHz;
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// U.ProcessorInf.CurrentAvailableSpeed = HalpCPUMHz;
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// U.ProcessorInf.ConfiguredSpeedLimit = HalpCPUMHz;
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U.ProcessorInf.ProcessorSpeed = HalpCPUMHz;
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InternalBuffer = &U.ProcessorInf;
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Length = sizeof (HAL_PROCESSOR_SPEED_INFORMATION);
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break;
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case HalProfileSourceInformation:
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Status = HalpProfileSourceInformation (
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Buffer,
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BufferSize,
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ReturnedLength);
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return Status;
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break;
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case HalNumaTopologyInterface:
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if (BufferSize == sizeof(HAL_NUMA_TOPOLOGY_INTERFACE)) {
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Status = STATUS_INVALID_LEVEL;
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if (HalpAcpiSrat) {
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Status = HalpGetAcpiStaticNumaTopology(Buffer);
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if (NT_SUCCESS(Status)) {
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*ReturnedLength = sizeof(HAL_NUMA_TOPOLOGY_INTERFACE);
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}
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break;
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}
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} else {
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//
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// Buffer size is wrong, we could return valid data
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// if the buffer is too big,.... but instead we will
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// use this as an indication that we're not compatible
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// with the kernel.
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//
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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break;
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case HalPartitionIpiInterface:
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//
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// Some platforms generate interrupts in remote partitions
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// as part of their shared memory implementation. This is
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// accomplished by targetting an IPI at a processor/vector
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// in that remote partition. Provide interfaces to enable
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// this but make them conditional on presence of IPPT
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// table and appropriate bit explicitly enabling this
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// functionality. OEM is responsible for ensuring that an
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// interrupt isn't sent to a logical processor that isn't
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// present.
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//
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if (BufferSize >= sizeof(HAL_CROSS_PARTITION_IPI_INTERFACE)) {
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Status = HalpGetPlatformProperties(&PlatformProperties);
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if (NT_SUCCESS(Status) &&
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(PlatformProperties & IPPT_ENABLE_CROSS_PARTITION_IPI)) {
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Status = HalpGetCrossPartitionIpiInterface(Buffer);
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if (NT_SUCCESS(Status)) {
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*ReturnedLength = sizeof(HAL_CROSS_PARTITION_IPI_INTERFACE);
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}
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} else {
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Status = STATUS_UNSUCCESSFUL;
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}
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} else {
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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break;
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case HalPlatformInformation:
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//
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// Any platform information that must be exposed to the kernel.
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//
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if (BufferSize >= sizeof(HAL_PLATFORM_INFORMATION)) {
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Status = HalpGetPlatformProperties(&PlatformProperties);
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if (NT_SUCCESS(Status)) {
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InternalBuffer = &U.PlatformInfo;
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Length = sizeof(U.PlatformInfo);
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U.PlatformInfo.PlatformFlags = PlatformProperties;
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}
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} else {
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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break;
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default:
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Status = STATUS_INVALID_LEVEL;
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break;
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}
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//
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// If non-zero Length copy data to callers buffer
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//
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if (Length) {
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if (BufferSize < Length) {
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Length = BufferSize;
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}
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*ReturnedLength = Length;
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RtlCopyMemory (Buffer, InternalBuffer, Length);
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}
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return Status;
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} // HaliQuerySystemInformation()
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#if !defined(MmIsFunctionPointerValid)
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#define MmIsFunctionPointerValid( _Va ) ( MmIsAddressValid((PVOID)(_Va)) && MmIsAddressValid((PVOID)(*((PULONG_PTR)(_Va)))) )
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#endif // !MmIsFunctionPointerValid
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NTSTATUS
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HaliSetSystemInformation (
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IN HAL_SET_INFORMATION_CLASS InformationClass,
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IN ULONG BufferSize,
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IN PVOID Buffer
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)
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/*++
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Routine Description:
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The function allows setting of various fields return by
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HalQuerySystemInformation.
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Arguments:
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InformationClass - Information class of the request.
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BufferSize - Size of buffer supplied by the caller.
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Buffer - Supplies the data to be set.
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Return Value:
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STATUS_SUCCESS or error.
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--*/
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{
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NTSTATUS Status;
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PAGED_CODE();
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Status = STATUS_SUCCESS;
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switch (InformationClass) {
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case HalProfileSourceInterval:
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if (BufferSize == sizeof(HAL_PROFILE_SOURCE_INTERVAL)) {
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PHAL_PROFILE_SOURCE_INTERVAL sourceInterval =
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(PHAL_PROFILE_SOURCE_INTERVAL)Buffer;
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Status = HalSetProfileSourceInterval( sourceInterval->Source,
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&sourceInterval->Interval
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);
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}
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else {
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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break;
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case HalProfileSourceInterruptHandler:
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//
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// Register an Profiling Interrupt Handler.
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//
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Status = STATUS_INFO_LENGTH_MISMATCH;
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if (BufferSize == sizeof(ULONG_PTR)) {
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if ( !(HalpFeatureBits & HAL_PERF_EVENTS) ) {
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Status = STATUS_NO_SUCH_DEVICE;
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}
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else if ( !MmIsFunctionPointerValid(Buffer) ) {
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Status = STATUS_INVALID_ADDRESS;
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}
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else {
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Status = (NTSTATUS)KiIpiGenericCall( HalpSetProfileInterruptHandler, *(PULONG_PTR)Buffer );
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}
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}
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break;
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case HalKernelErrorHandler:
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Status = HalpMceRegisterKernelDriver( (PKERNEL_ERROR_HANDLER_INFO) Buffer, BufferSize );
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break;
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case HalMcaRegisterDriver:
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Status = HalpMcaRegisterDriver(
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(PMCA_DRIVER_INFO) Buffer // Info about registering driver
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);
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break;
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case HalCmcRegisterDriver:
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Status = HalpCmcRegisterDriver(
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(PCMC_DRIVER_INFO) Buffer // Info about registering driver
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);
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break;
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case HalCpeRegisterDriver:
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Status = HalpCpeRegisterDriver(
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(PCPE_DRIVER_INFO) Buffer // Info about registering driver
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);
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break;
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case HalMcaLog: // Class requested by MS Machine Check Event Test Team.
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Status = HalpSetMcaLog( (PMCA_EXCEPTION) Buffer, BufferSize );
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break;
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case HalCmcLog: // Class requested by MS Machine Check Event Test Team.
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Status = HalpSetCmcLog( (PCMC_EXCEPTION) Buffer, BufferSize );
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break;
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case HalCpeLog: // Class requested by MS Machine Check Event Test Team.
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Status = HalpSetCpeLog( (PCPE_EXCEPTION) Buffer, BufferSize );
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break;
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default:
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Status = STATUS_INVALID_LEVEL;
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break;
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}
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return Status;
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} // HaliSetSystemInformation()
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