[BOOTLIB]: Don't use __getcallerseflags() in Archx86IsCpuidSupported -- __readeflags...

[reactos.git] / reactos / boot / environ / lib / mm / i386 / mmx86.c

diff --git a/reactos/boot/environ/lib/mm/i386/mmx86.c b/reactos/boot/environ/lib/mm/i386/mmx86.c
index e61aaaf..65ecc1c 100644 (file)
--- a/reactos/boot/environ/lib/mm/i386/mmx86.c
+++ b/reactos/boot/environ/lib/mm/i386/mmx86.c
@@ -227,94 +227,6 @@ MmArchTranslateVirtualAddress (
     return Descriptor != NULL;
 }
 
-BOOLEAN
-Archx86IsCpuidSupported (
-    VOID
-    )
-{
-    ULONG CallerFlags, Flags;
-
-    /* Read the original flags, and add the CPUID bit */
-    CallerFlags = __getcallerseflags() ^ 0x200000;
-    __writeeflags(CallerFlags);
-
-    /* Read our flags now */
-    Flags = __readeflags();
-
-    /* Check if the bit stuck */
-    return (((CallerFlags ^ Flags) >> 21) & 1) ^ 1;
-}
-
-BOOLEAN
-BlArchIsCpuIdFunctionSupported (
-    _In_ ULONG Function
-    )
-{
-    BOOLEAN Supported;
-    INT CpuInfo[4];
-
-    /* Check if the CPU supports this instruction */
-    Supported = Archx86IsCpuidSupported();
-    if (!Supported)
-    {
-        return FALSE;
-    }
-
-    /* Check if it's the extended function */
-    if (Function >= 0x80000000)
-    {
-        /* Check if extended functions are supported */
-        __cpuid(CpuInfo, 0x80000000);
-        if ((CpuInfo[0] & 0xFFFFFF00) != 0x80000000)
-        {
-            /* Nope */
-            return FALSE;
-        }
-    }
-    else
-    {
-        /* It's a regular function, get the maximum one supported */
-        __cpuid(CpuInfo, 0);
-    }
-
-    /* Check if our function is within bounds */
-    if (Function <= CpuInfo[0])
-    {
-        return TRUE;
-    }
-
-    /* Nope */
-    return FALSE;
-}
-
-VOID
-BlArchCpuId (
-    _In_ ULONG Function,
-    _In_ ULONG SubFunction,
-    _Out_ INT* Result
-    )
-{
-    /* Use the intrinsic */
-    __cpuidex(Result, Function, SubFunction);
-}
-
-ULONGLONG
-BlArchGetPerformanceCounter (
-    VOID
-    )
-{
-    INT CpuInfo[4];
-
-    /* Serialize with CPUID, if it exists */
-    if (Archx86IsCpuidSupported())
-    {
-        BlArchCpuId(0, 0, CpuInfo);
-    }
-
-    /* Read the TSC */
-    return __rdtsc();
-}
-
 VOID
 MmDefpDestroySelfMap (
     VOID