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Implement stack switching in guest<->host trampolines

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This commit is contained in:
Luke Street
2025-11-03 19:21:35 -07:00
parent 4dc599381f
commit bfba360d30
3 changed files with 91 additions and 56 deletions
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5
src/main.cpp
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@@ -84,6 +84,7 @@ void wibo::initializeTibStackInfo(TEB *tibPtr) {
}
tibPtr->Tib.StackLimit = guestLimit;
tibPtr->Tib.StackBase = guestBase;
tibPtr->CurrentStackPointer = guestBase;
DEBUG_LOG("initializeTibStackInfo: using guest stack base=%p limit=%p\n", tibPtr->Tib.StackBase,
tibPtr->Tib.StackLimit);
}
@@ -115,8 +116,8 @@ bool wibo::installTibForCurrentThread(TEB *tibPtr) {
DEBUG_LOG("set_thread_area: reused entry=%d base=%p\n", tibEntryNumber, tibPtr);
}
tibPtr->HostFsSelector = static_cast<uint16_t>((desc.entry_number << 3) | 3);
tibPtr->HostGsSelector = 0;
tibPtr->CurrentFsSelector = static_cast<uint16_t>((desc.entry_number << 3) | 3);
tibPtr->CurrentGsSelector = 0;
currentThreadTeb = tibPtr;
return true;
}