xt-sys/exectos
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TSS entry is already put into GDT table, just initialize it
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This commit is contained in:
Rafal Kupiec 2023-02-01 23:37:12 +01:00
parent cbd21ced39
commit 7fc1f04cd0
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
1 changed files with 0 additions and 21 deletions
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21
xtoskrnl/ar/amd64/procsup.c
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@ -191,27 +191,6 @@ XTAPI
VOID
ArpInitializeTss(IN PKPROCESSOR_BLOCK ProcessorBlock)
{
PKGDTENTRY TssEntry;
/* Get TSS entry from GDT */
TssEntry = (PKGDTENTRY)(&(ProcessorBlock->GdtBase[KGDT_SYS_TSS / sizeof(KGDTENTRY)]));
/* Initialize TSS entry */
TssEntry->BaseLow = (ULONGLONG)ProcessorBlock->TssBase & 0xFFFF;
TssEntry->BaseUpper = (ULONGLONG)ProcessorBlock->TssBase >> 32;
TssEntry->LimitLow = (sizeof(KTSS) - 1) & 0xFFFF;
TssEntry->Bits.BaseMiddle = ((ULONGLONG)ProcessorBlock->TssBase >> 16) & 0xFF;
TssEntry->Bits.BaseHigh = ((ULONGLONG)ProcessorBlock->TssBase >> 24) & 0xFF;
TssEntry->Bits.LimitHigh = (sizeof(KTSS) - 1) >> 16;
TssEntry->Bits.DefaultBig = 0;
TssEntry->Bits.Dpl = 0;
TssEntry->Bits.Granularity = 0;
TssEntry->Bits.LongMode = 0;
TssEntry->Bits.Present = 1;
TssEntry->Bits.System = 0;
TssEntry->Bits.Type = AMD64_TSS;
TssEntry->MustBeZero = 0;
/* Fill TSS with zeroes */
RtlZeroMemory(ProcessorBlock->TssBase, sizeof(KTSS));