core/arm_interface: Call SVC after end of dynarmic block.

So we can modify all of dynarmic states within SVC without ExceptionalExit.

Especially as the ExceptionalExit hack is dropped on upstream dynarmic.
This commit is contained in:
Markus Wick 2021-05-27 22:54:22 +02:00
parent 9110cfdefb
commit 3d2e80daed
6 changed files with 42 additions and 18 deletions

View file

@ -65,9 +65,6 @@ public:
/// Step CPU by one instruction /// Step CPU by one instruction
virtual void Step() = 0; virtual void Step() = 0;
/// Exits execution from a callback, the callback must rewind the stack
virtual void ExceptionalExit() = 0;
/// Clear all instruction cache /// Clear all instruction cache
virtual void ClearInstructionCache() = 0; virtual void ClearInstructionCache() = 0;

View file

@ -78,7 +78,9 @@ public:
} }
void CallSVC(u32 swi) override { void CallSVC(u32 swi) override {
Kernel::Svc::Call(parent.system, swi); parent.svc_called = true;
parent.svc_swi = swi;
parent.jit->HaltExecution();
} }
void AddTicks(u64 ticks) override { void AddTicks(u64 ticks) override {
@ -187,11 +189,17 @@ std::shared_ptr<Dynarmic::A32::Jit> ARM_Dynarmic_32::MakeJit(Common::PageTable*
} }
void ARM_Dynarmic_32::Run() { void ARM_Dynarmic_32::Run() {
while (true) {
jit->Run(); jit->Run();
if (!svc_called) {
break;
}
svc_called = false;
Kernel::Svc::Call(system, svc_swi);
if (shutdown) {
break;
}
} }
void ARM_Dynarmic_32::ExceptionalExit() {
jit->ExceptionalExit();
} }
void ARM_Dynarmic_32::Step() { void ARM_Dynarmic_32::Step() {
@ -275,6 +283,7 @@ void ARM_Dynarmic_32::LoadContext(const ThreadContext32& ctx) {
void ARM_Dynarmic_32::PrepareReschedule() { void ARM_Dynarmic_32::PrepareReschedule() {
jit->HaltExecution(); jit->HaltExecution();
shutdown = true;
} }
void ARM_Dynarmic_32::ClearInstructionCache() { void ARM_Dynarmic_32::ClearInstructionCache() {

View file

@ -42,7 +42,6 @@ public:
u32 GetPSTATE() const override; u32 GetPSTATE() const override;
void SetPSTATE(u32 pstate) override; void SetPSTATE(u32 pstate) override;
void Run() override; void Run() override;
void ExceptionalExit() override;
void Step() override; void Step() override;
VAddr GetTlsAddress() const override; VAddr GetTlsAddress() const override;
void SetTlsAddress(VAddr address) override; void SetTlsAddress(VAddr address) override;
@ -82,6 +81,12 @@ private:
std::size_t core_index; std::size_t core_index;
DynarmicExclusiveMonitor& exclusive_monitor; DynarmicExclusiveMonitor& exclusive_monitor;
std::shared_ptr<Dynarmic::A32::Jit> jit; std::shared_ptr<Dynarmic::A32::Jit> jit;
// SVC callback
u32 svc_swi{};
bool svc_called{};
bool shutdown{};
}; };
} // namespace Core } // namespace Core

View file

@ -102,7 +102,9 @@ public:
} }
void CallSVC(u32 swi) override { void CallSVC(u32 swi) override {
Kernel::Svc::Call(parent.system, swi); parent.svc_called = true;
parent.svc_swi = swi;
parent.jit->HaltExecution();
} }
void AddTicks(u64 ticks) override { void AddTicks(u64 ticks) override {
@ -227,11 +229,17 @@ std::shared_ptr<Dynarmic::A64::Jit> ARM_Dynarmic_64::MakeJit(Common::PageTable*
} }
void ARM_Dynarmic_64::Run() { void ARM_Dynarmic_64::Run() {
while (true) {
jit->Run(); jit->Run();
if (!svc_called) {
break;
}
svc_called = false;
Kernel::Svc::Call(system, svc_swi);
if (shutdown) {
break;
}
} }
void ARM_Dynarmic_64::ExceptionalExit() {
jit->ExceptionalExit();
} }
void ARM_Dynarmic_64::Step() { void ARM_Dynarmic_64::Step() {
@ -320,6 +328,7 @@ void ARM_Dynarmic_64::LoadContext(const ThreadContext64& ctx) {
void ARM_Dynarmic_64::PrepareReschedule() { void ARM_Dynarmic_64::PrepareReschedule() {
jit->HaltExecution(); jit->HaltExecution();
shutdown = true;
} }
void ARM_Dynarmic_64::ClearInstructionCache() { void ARM_Dynarmic_64::ClearInstructionCache() {

View file

@ -40,7 +40,6 @@ public:
void SetPSTATE(u32 pstate) override; void SetPSTATE(u32 pstate) override;
void Run() override; void Run() override;
void Step() override; void Step() override;
void ExceptionalExit() override;
VAddr GetTlsAddress() const override; VAddr GetTlsAddress() const override;
void SetTlsAddress(VAddr address) override; void SetTlsAddress(VAddr address) override;
void SetTPIDR_EL0(u64 value) override; void SetTPIDR_EL0(u64 value) override;
@ -75,6 +74,12 @@ private:
DynarmicExclusiveMonitor& exclusive_monitor; DynarmicExclusiveMonitor& exclusive_monitor;
std::shared_ptr<Dynarmic::A64::Jit> jit; std::shared_ptr<Dynarmic::A64::Jit> jit;
// SVC callback
u32 svc_swi{};
bool svc_called{};
bool shutdown{};
}; };
} // namespace Core } // namespace Core

View file

@ -659,7 +659,6 @@ void KScheduler::Unload(KThread* thread) {
if (thread) { if (thread) {
if (thread->IsCallingSvc()) { if (thread->IsCallingSvc()) {
system.ArmInterface(core_id).ExceptionalExit();
thread->ClearIsCallingSvc(); thread->ClearIsCallingSvc();
} }
if (!thread->IsTerminationRequested()) { if (!thread->IsTerminationRequested()) {