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authorLiam <byteslice@airmail.cc>2023-12-26 05:21:08 +0100
committerLiam <byteslice@airmail.cc>2023-12-26 05:30:56 +0100
commitddda76f9b0d16e8a6fbc92db9e26f25843b647ed (patch)
tree3fd209d66b8503ca7f0cf6d15c5c065179c66076 /src/core/arm/dynarmic
parentMerge pull request #12394 from liamwhite/per-process-memory (diff)
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Diffstat (limited to 'src/core/arm/dynarmic')
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic.cpp49
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic.h20
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_32.cpp5
-rw-r--r--src/core/arm/dynarmic/arm_dynarmic_64.cpp5
4 files changed, 79 insertions, 0 deletions
diff --git a/src/core/arm/dynarmic/arm_dynarmic.cpp b/src/core/arm/dynarmic/arm_dynarmic.cpp
new file mode 100644
index 000000000..e6e9fc45b
--- /dev/null
+++ b/src/core/arm/dynarmic/arm_dynarmic.cpp
@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#ifdef __linux__
+
+#include "common/signal_chain.h"
+
+#include "core/arm/dynarmic/arm_dynarmic.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/memory.h"
+
+namespace Core {
+
+namespace {
+
+thread_local Core::Memory::Memory* g_current_memory{};
+std::once_flag g_registered{};
+struct sigaction g_old_segv {};
+
+void HandleSigSegv(int sig, siginfo_t* info, void* ctx) {
+ if (g_current_memory && g_current_memory->InvalidateSeparateHeap(info->si_addr)) {
+ return;
+ }
+
+ return g_old_segv.sa_sigaction(sig, info, ctx);
+}
+
+} // namespace
+
+ScopedJitExecution::ScopedJitExecution(Kernel::KProcess* process) {
+ g_current_memory = std::addressof(process->GetMemory());
+}
+
+ScopedJitExecution::~ScopedJitExecution() {
+ g_current_memory = nullptr;
+}
+
+void ScopedJitExecution::RegisterHandler() {
+ std::call_once(g_registered, [] {
+ struct sigaction sa {};
+ sa.sa_sigaction = &HandleSigSegv;
+ sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
+ Common::SigAction(SIGSEGV, std::addressof(sa), std::addressof(g_old_segv));
+ });
+}
+
+} // namespace Core
+
+#endif
diff --git a/src/core/arm/dynarmic/arm_dynarmic.h b/src/core/arm/dynarmic/arm_dynarmic.h
index eef7c3116..53dd18815 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.h
+++ b/src/core/arm/dynarmic/arm_dynarmic.h
@@ -26,4 +26,24 @@ constexpr HaltReason TranslateHaltReason(Dynarmic::HaltReason hr) {
return static_cast<HaltReason>(hr);
}
+#ifdef __linux__
+
+class ScopedJitExecution {
+public:
+ explicit ScopedJitExecution(Kernel::KProcess* process);
+ ~ScopedJitExecution();
+ static void RegisterHandler();
+};
+
+#else
+
+class ScopedJitExecution {
+public:
+ explicit ScopedJitExecution(Kernel::KProcess* process) {}
+ ~ScopedJitExecution() {}
+ static void RegisterHandler() {}
+};
+
+#endif
+
} // namespace Core
diff --git a/src/core/arm/dynarmic/arm_dynarmic_32.cpp b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
index c78cfd528..36478f722 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_32.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
@@ -331,11 +331,15 @@ bool ArmDynarmic32::IsInThumbMode() const {
}
HaltReason ArmDynarmic32::RunThread(Kernel::KThread* thread) {
+ ScopedJitExecution sj(thread->GetOwnerProcess());
+
m_jit->ClearExclusiveState();
return TranslateHaltReason(m_jit->Run());
}
HaltReason ArmDynarmic32::StepThread(Kernel::KThread* thread) {
+ ScopedJitExecution sj(thread->GetOwnerProcess());
+
m_jit->ClearExclusiveState();
return TranslateHaltReason(m_jit->Step());
}
@@ -377,6 +381,7 @@ ArmDynarmic32::ArmDynarmic32(System& system, bool uses_wall_clock, Kernel::KProc
m_cp15(std::make_shared<DynarmicCP15>(*this)), m_core_index{core_index} {
auto& page_table_impl = process->GetPageTable().GetBasePageTable().GetImpl();
m_jit = MakeJit(&page_table_impl);
+ ScopedJitExecution::RegisterHandler();
}
ArmDynarmic32::~ArmDynarmic32() = default;
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.cpp b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
index f351b13d9..c811c8ad5 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
@@ -362,11 +362,15 @@ std::shared_ptr<Dynarmic::A64::Jit> ArmDynarmic64::MakeJit(Common::PageTable* pa
}
HaltReason ArmDynarmic64::RunThread(Kernel::KThread* thread) {
+ ScopedJitExecution sj(thread->GetOwnerProcess());
+
m_jit->ClearExclusiveState();
return TranslateHaltReason(m_jit->Run());
}
HaltReason ArmDynarmic64::StepThread(Kernel::KThread* thread) {
+ ScopedJitExecution sj(thread->GetOwnerProcess());
+
m_jit->ClearExclusiveState();
return TranslateHaltReason(m_jit->Step());
}
@@ -406,6 +410,7 @@ ArmDynarmic64::ArmDynarmic64(System& system, bool uses_wall_clock, Kernel::KProc
auto& page_table = process->GetPageTable().GetBasePageTable();
auto& page_table_impl = page_table.GetImpl();
m_jit = MakeJit(&page_table_impl, page_table.GetAddressSpaceWidth());
+ ScopedJitExecution::RegisterHandler();
}
ArmDynarmic64::~ArmDynarmic64() = default;