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nce: implement instruction emulation for misaligned memory accesses

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This commit is contained in:
Liam
2023-11-30 14:05:02 -05:00
parent 11b123ba01
commit bd59934350
9 changed files with 3849 additions and 43 deletions
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13
src/core/arm/nce/arm_nce.h
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@@ -61,7 +61,8 @@ private:
static void ReturnToRunCodeByExceptionLevelChangeSignalHandler(int sig, void* info,
void* raw_context);
static void BreakFromRunCodeSignalHandler(int sig, void* info, void* raw_context);
static void GuestFaultSignalHandler(int sig, void* info, void* raw_context);
static void GuestAlignmentFaultSignalHandler(int sig, void* info, void* raw_context);
static void GuestAccessFaultSignalHandler(int sig, void* info, void* raw_context);
static void LockThreadParameters(void* tpidr);
static void UnlockThreadParameters(void* tpidr);
@@ -70,8 +71,11 @@ private:
// C++ implementation functions for assembly definitions.
static void* RestoreGuestContext(void* raw_context);
static void SaveGuestContext(GuestContext* ctx, void* raw_context);
static bool HandleGuestFault(GuestContext* ctx, void* info, void* raw_context);
static void HandleHostFault(int sig, void* info, void* raw_context);
static bool HandleFailedGuestFault(GuestContext* ctx, void* info, void* raw_context);
static bool HandleGuestAlignmentFault(GuestContext* ctx, void* info, void* raw_context);
static bool HandleGuestAccessFault(GuestContext* ctx, void* info, void* raw_context);
static void HandleHostAlignmentFault(int sig, void* info, void* raw_context);
static void HandleHostAccessFault(int sig, void* info, void* raw_context);
public:
Core::System& m_system;
@@ -83,6 +87,9 @@ public:
// Core context.
GuestContext m_guest_ctx{};
Kernel::KThread* m_running_thread{};
// Stack for signal processing.
std::unique_ptr<u8[]> m_stack{};
};
} // namespace Core