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[cpu] Add guest thread continuation

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ParantezTech
2026-06-21 23:18:29 +03:00
parent 08b315b5fc
commit 2a52ccfe6a
6 changed files with 1458 additions and 187 deletions
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src/SharpEmu.HLE/GuestThreadExecution.cs
+87
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@@ -15,8 +15,49 @@ public interface IGuestThreadScheduler
bool TryStartThread(CpuContext creatorContext, GuestThreadStartRequest request, out string? error);
void Pump(CpuContext callerContext, string reason);
bool TryCallGuestFunction(
CpuContext callerContext,
ulong entryPoint,
ulong arg0,
ulong arg1,
ulong stackAddress,
ulong stackSize,
string reason,
out string? error);
bool TryCallGuestContinuation(
CpuContext callerContext,
GuestCpuContinuation continuation,
string reason,
out string? error);
}
public readonly record struct GuestImportCallFrame(
bool IsValid,
ulong ReturnRip,
ulong ResumeRsp);
public readonly record struct GuestCpuContinuation(
ulong Rip,
ulong Rsp,
ulong Rflags,
ulong FsBase,
ulong GsBase,
ulong Rax,
ulong Rcx,
ulong Rdx,
ulong Rbx,
ulong Rbp,
ulong Rsi,
ulong Rdi,
ulong R8,
ulong R9,
ulong R12,
ulong R13,
ulong R14,
ulong R15);
public static class GuestThreadExecution
{
[ThreadStatic]
@@ -34,6 +75,15 @@ public static class GuestThreadExecution
[ThreadStatic]
private static string? _pendingEntryExitReason;
[ThreadStatic]
private static bool _hasCurrentImportCallFrame;
[ThreadStatic]
private static ulong _currentImportReturnRip;
[ThreadStatic]
private static ulong _currentImportResumeRsp;
public static IGuestThreadScheduler? Scheduler { get; set; }
public static bool IsGuestThread => _currentGuestThreadHandle != 0;
@@ -48,6 +98,9 @@ public static class GuestThreadExecution
_pendingEntryExit = false;
_pendingEntryExitStatus = 0;
_pendingEntryExitReason = null;
_hasCurrentImportCallFrame = false;
_currentImportReturnRip = 0;
_currentImportResumeRsp = 0;
return previous;
}
@@ -58,6 +111,9 @@ public static class GuestThreadExecution
_pendingEntryExit = false;
_pendingEntryExitStatus = 0;
_pendingEntryExitReason = null;
_hasCurrentImportCallFrame = false;
_currentImportReturnRip = 0;
_currentImportResumeRsp = 0;
}
public static bool RequestCurrentThreadBlock(string reason)
@@ -104,4 +160,35 @@ public static class GuestThreadExecution
_pendingEntryExitReason = null;
return true;
}
public static GuestImportCallFrame EnterImportCallFrame(ulong returnRip, ulong resumeRsp)
{
var previous = new GuestImportCallFrame(
_hasCurrentImportCallFrame,
_currentImportReturnRip,
_currentImportResumeRsp);
_hasCurrentImportCallFrame = true;
_currentImportReturnRip = returnRip;
_currentImportResumeRsp = resumeRsp;
return previous;
}
public static void RestoreImportCallFrame(GuestImportCallFrame previous)
{
_hasCurrentImportCallFrame = previous.IsValid;
_currentImportReturnRip = previous.ReturnRip;
_currentImportResumeRsp = previous.ResumeRsp;
}
public static bool TryGetCurrentImportCallFrame(out GuestImportCallFrame frame)
{
if (!_hasCurrentImportCallFrame)
{
frame = default;
return false;
}
frame = new GuestImportCallFrame(true, _currentImportReturnRip, _currentImportResumeRsp);
return true;
}
}