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core: Implement separate A32/A64 ARM interfaces.

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This commit is contained in:
bunnei 2020-03-01 23:46:10 -05:00
parent 6fc485a607
commit c083ea7d78
21 changed files with 454 additions and 122 deletions
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32
src/core/arm/arm_interface.h
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@ -25,7 +25,20 @@ public:
explicit ARM_Interface(System& system_) : system{system_} {}
virtual ~ARM_Interface() = default;
struct ThreadContext {
struct ThreadContext32 {
std::array<u32, 16> cpu_registers;
u32 cpsr;
std::array<u8, 4> padding;
std::array<u64, 32> fprs;
u32 fpscr;
u32 fpexc;
u32 tpidr;
};
// Internally within the kernel, it expects the AArch32 version of the
// thread context to be 344 bytes in size.
static_assert(sizeof(ThreadContext32) == 0x158);
struct ThreadContext64 {
std::array<u64, 31> cpu_registers;
u64 sp;
u64 pc;
@ -38,7 +51,7 @@ public:
};
// Internally within the kernel, it expects the AArch64 version of the
// thread context to be 800 bytes in size.
static_assert(sizeof(ThreadContext) == 0x320);
static_assert(sizeof(ThreadContext64) == 0x320);
/// Runs the CPU until an event happens
virtual void Run() = 0;
@ -130,17 +143,10 @@ public:
*/
virtual void SetTPIDR_EL0(u64 value) = 0;
/**
* Saves the current CPU context
* @param ctx Thread context to save
*/
virtual void SaveContext(ThreadContext& ctx) = 0;
/**
* Loads a CPU context
* @param ctx Thread context to load
*/
virtual void LoadContext(const ThreadContext& ctx) = 0;
virtual void SaveContext(ThreadContext32& ctx) = 0;
virtual void SaveContext(ThreadContext64& ctx) = 0;
virtual void LoadContext(const ThreadContext32& ctx) = 0;
virtual void LoadContext(const ThreadContext64& ctx) = 0;
/// Clears the exclusive monitor's state.
virtual void ClearExclusiveState() = 0;