WHvGetVirtualProcessorCpuidOutput

// WinHvPlatform.dll
#include <windows.h>

HRESULT WHvGetVirtualProcessorCpuidOutput(
    WHV_PARTITION_HANDLE Partition,
    DWORD VpIndex,
    DWORD Eax,
    DWORD Ecx,
    WHV_CPUID_OUTPUT* CpuidOutput
);

<DllImport("WinHvPlatform.dll", ExactSpelling:=True)>
Public Shared Function WHvGetVirtualProcessorCpuidOutput(
    Partition As IntPtr,   ' WHV_PARTITION_HANDLE
    VpIndex As UInteger,   ' DWORD
    Eax As UInteger,   ' DWORD
    Ecx As UInteger,   ' DWORD
    CpuidOutput As IntPtr   ' WHV_CPUID_OUTPUT* out
) As Integer
End Function

' Partition : WHV_PARTITION_HANDLE
' VpIndex : DWORD
' Eax : DWORD
' Ecx : DWORD
' CpuidOutput : WHV_CPUID_OUTPUT* out
Declare PtrSafe Function WHvGetVirtualProcessorCpuidOutput Lib "winhvplatform" ( _
    ByVal Partition As LongPtr, _
    ByVal VpIndex As Long, _
    ByVal Eax As Long, _
    ByVal Ecx As Long, _
    ByVal CpuidOutput As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WHvGetVirtualProcessorCpuidOutput = ctypes.windll.winhvplatform.WHvGetVirtualProcessorCpuidOutput
WHvGetVirtualProcessorCpuidOutput.restype = ctypes.c_int
WHvGetVirtualProcessorCpuidOutput.argtypes = [
    ctypes.c_ssize_t,  # Partition : WHV_PARTITION_HANDLE
    wintypes.DWORD,  # VpIndex : DWORD
    wintypes.DWORD,  # Eax : DWORD
    wintypes.DWORD,  # Ecx : DWORD
    ctypes.c_void_p,  # CpuidOutput : WHV_CPUID_OUTPUT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WinHvPlatform.dll')
WHvGetVirtualProcessorCpuidOutput = Fiddle::Function.new(
  lib['WHvGetVirtualProcessorCpuidOutput'],
  [
    Fiddle::TYPE_INTPTR_T,  # Partition : WHV_PARTITION_HANDLE
    -Fiddle::TYPE_INT,  # VpIndex : DWORD
    -Fiddle::TYPE_INT,  # Eax : DWORD
    -Fiddle::TYPE_INT,  # Ecx : DWORD
    Fiddle::TYPE_VOIDP,  # CpuidOutput : WHV_CPUID_OUTPUT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhvplatform")]
extern "system" {
    fn WHvGetVirtualProcessorCpuidOutput(
        Partition: isize,  // WHV_PARTITION_HANDLE
        VpIndex: u32,  // DWORD
        Eax: u32,  // DWORD
        Ecx: u32,  // DWORD
        CpuidOutput: *mut WHV_CPUID_OUTPUT  // WHV_CPUID_OUTPUT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WinHvPlatform.dll")]
public static extern int WHvGetVirtualProcessorCpuidOutput(IntPtr Partition, uint VpIndex, uint Eax, uint Ecx, IntPtr CpuidOutput);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WinHvPlatform_WHvGetVirtualProcessorCpuidOutput' -Namespace Win32 -PassThru
# $api::WHvGetVirtualProcessorCpuidOutput(Partition, VpIndex, Eax, Ecx, CpuidOutput)

#uselib "WinHvPlatform.dll"
#func global WHvGetVirtualProcessorCpuidOutput "WHvGetVirtualProcessorCpuidOutput" sptr, sptr, sptr, sptr, sptr
; WHvGetVirtualProcessorCpuidOutput Partition, VpIndex, Eax, Ecx, varptr(CpuidOutput)   ; 戻り値は stat
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "sptr"
; Eax : DWORD -> "sptr"
; Ecx : DWORD -> "sptr"
; CpuidOutput : WHV_CPUID_OUTPUT* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVirtualProcessorCpuidOutput "WHvGetVirtualProcessorCpuidOutput" sptr, int, int, int, var
; res = WHvGetVirtualProcessorCpuidOutput(Partition, VpIndex, Eax, Ecx, CpuidOutput)
; Partition : WHV_PARTITION_HANDLE -> "sptr"
; VpIndex : DWORD -> "int"
; Eax : DWORD -> "int"
; Ecx : DWORD -> "int"
; CpuidOutput : WHV_CPUID_OUTPUT* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT WHvGetVirtualProcessorCpuidOutput(WHV_PARTITION_HANDLE Partition, DWORD VpIndex, DWORD Eax, DWORD Ecx, WHV_CPUID_OUTPUT* CpuidOutput)
#uselib "WinHvPlatform.dll"
#cfunc global WHvGetVirtualProcessorCpuidOutput "WHvGetVirtualProcessorCpuidOutput" intptr, int, int, int, var
; res = WHvGetVirtualProcessorCpuidOutput(Partition, VpIndex, Eax, Ecx, CpuidOutput)
; Partition : WHV_PARTITION_HANDLE -> "intptr"
; VpIndex : DWORD -> "int"
; Eax : DWORD -> "int"
; Ecx : DWORD -> "int"
; CpuidOutput : WHV_CPUID_OUTPUT* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winhvplatform = windows.NewLazySystemDLL("WinHvPlatform.dll")
	procWHvGetVirtualProcessorCpuidOutput = winhvplatform.NewProc("WHvGetVirtualProcessorCpuidOutput")
)

// Partition (WHV_PARTITION_HANDLE), VpIndex (DWORD), Eax (DWORD), Ecx (DWORD), CpuidOutput (WHV_CPUID_OUTPUT* out)
r1, _, err := procWHvGetVirtualProcessorCpuidOutput.Call(
	uintptr(Partition),
	uintptr(VpIndex),
	uintptr(Eax),
	uintptr(Ecx),
	uintptr(CpuidOutput),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WHvGetVirtualProcessorCpuidOutput(
  Partition: NativeInt;   // WHV_PARTITION_HANDLE
  VpIndex: DWORD;   // DWORD
  Eax: DWORD;   // DWORD
  Ecx: DWORD;   // DWORD
  CpuidOutput: Pointer   // WHV_CPUID_OUTPUT* out
): Integer; stdcall;
  external 'WinHvPlatform.dll' name 'WHvGetVirtualProcessorCpuidOutput';

result := DllCall("WinHvPlatform\WHvGetVirtualProcessorCpuidOutput"
    , "Ptr", Partition   ; WHV_PARTITION_HANDLE
    , "UInt", VpIndex   ; DWORD
    , "UInt", Eax   ; DWORD
    , "UInt", Ecx   ; DWORD
    , "Ptr", CpuidOutput   ; WHV_CPUID_OUTPUT* out
    , "Int")   ; return: HRESULT

●WHvGetVirtualProcessorCpuidOutput(Partition, VpIndex, Eax, Ecx, CpuidOutput) = DLL("WinHvPlatform.dll", "int WHvGetVirtualProcessorCpuidOutput(int, dword, dword, dword, void*)")
# 呼び出し: WHvGetVirtualProcessorCpuidOutput(Partition, VpIndex, Eax, Ecx, CpuidOutput)
# Partition : WHV_PARTITION_HANDLE -> "int"
# VpIndex : DWORD -> "dword"
# Eax : DWORD -> "dword"
# Ecx : DWORD -> "dword"
# CpuidOutput : WHV_CPUID_OUTPUT* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。