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[Kernel] Code reentrance for guest fibers.

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[Kernel] Code reentrance using exceptions for guest fibers.
This commit is contained in:
gibbed
2020-12-04 14:57:48 -06:00
committed by Rick Gibbed
parent d420215de1
commit 1513dd235b
4 changed files with 132 additions and 46 deletions
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81
src/xenia/kernel/xthread.h
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@@ -70,35 +70,72 @@ struct XAPC {
// Processor Control Region
struct X_KPCR {
xe::be<uint32_t> tls_ptr; // 0x0
char unk_04[0x2C]; // 0x4
uint8_t unk_04[0x2C]; // 0x4
xe::be<uint32_t> pcr_ptr; // 0x30
char unk_34[0x3C]; // 0x34
uint8_t unk_34[0x3C]; // 0x34
xe::be<uint32_t> stack_base_ptr; // 0x70 Stack base address (high addr)
xe::be<uint32_t> stack_end_ptr; // 0x74 Stack end (low addr)
char unk_78[0x88]; // 0x78
uint8_t unk_78[0x88]; // 0x78
xe::be<uint32_t> current_thread; // 0x100
char unk_104[0x8]; // 0x104
xe::be<uint8_t> current_cpu; // 0x10C
char unk_10D[0x43]; // 0x10D
uint8_t unk_104[0x8]; // 0x104
uint8_t current_cpu; // 0x10C
uint8_t unk_10D[0x43]; // 0x10D
xe::be<uint32_t> dpc_active; // 0x150
};
struct X_KTHREAD {
X_DISPATCH_HEADER header; // 0x0
char unk_10[0xAC]; // 0x10
uint8_t suspend_count; // 0xBC
uint8_t unk_BD; // 0xBD
uint8_t unk_BE; // 0xBE
uint8_t current_cpu; // 0xBF
char unk_C0[0x70]; // 0xC0
xe::be<uint64_t> create_time; // 0x130
xe::be<uint64_t> exit_time; // 0x138
xe::be<uint32_t> exit_status; // 0x140
char unk_144[0x8]; // 0x144
xe::be<uint32_t> thread_id; // 0x14C
char unk_150[0x10]; // 0x150
xe::be<uint32_t> last_error; // 0x160
char unk_164[0x94C]; // 0x164
X_DISPATCH_HEADER header; // 0x0
xe::be<uint32_t> unk_10; // 0x10
xe::be<uint32_t> unk_14; // 0x14
uint8_t unk_18[0x28]; // 0x10
xe::be<uint32_t> unk_40; // 0x40
xe::be<uint32_t> unk_44; // 0x44
xe::be<uint32_t> unk_48; // 0x48
xe::be<uint32_t> unk_4C; // 0x4C
uint8_t unk_50[0x4]; // 0x50
xe::be<uint16_t> unk_54; // 0x54
xe::be<uint16_t> unk_56; // 0x56
uint8_t unk_58[0x4]; // 0x58
xe::be<uint32_t> stack_base; // 0x5C
xe::be<uint32_t> stack_limit; // 0x60
uint8_t unk_64[0x4]; // 0x64
xe::be<uint32_t> tls_address; // 0x68
uint8_t unk_6C; // 0x6C
uint8_t unk_6D[0x7]; // 0x6D
xe::be<uint32_t> unk_74; // 0x74
xe::be<uint32_t> unk_78; // 0x78
xe::be<uint32_t> unk_7C; // 0x7C
xe::be<uint32_t> unk_80; // 0x80
xe::be<uint32_t> unk_84; // 0x84
uint8_t unk_88[0x3]; // 0x88
uint8_t unk_8B; // 0x8B
uint8_t unk_8C[0x10]; // 0x8C
xe::be<uint32_t> unk_9C; // 0x9C
uint8_t unk_A0[0x1C]; // 0xA0
uint8_t suspend_count; // 0xBC
uint8_t unk_BD; // 0xBD
uint8_t unk_BE; // 0xBE
uint8_t current_cpu; // 0xBF
uint8_t unk_C0[0x10]; // 0xC0
xe::be<uint32_t> stack_alloc_base; // 0xD0
uint8_t unk_D4[0x5C]; // 0xD4
xe::be<uint64_t> create_time; // 0x130
xe::be<uint64_t> exit_time; // 0x138
xe::be<uint32_t> exit_status; // 0x140
xe::be<uint32_t> unk_144; // 0x144
xe::be<uint32_t> unk_148; // 0x148
xe::be<uint32_t> thread_id; // 0x14C
xe::be<uint32_t> start_address; // 0x150
xe::be<uint32_t> unk_154; // 0x154
xe::be<uint32_t> unk_158; // 0x158
uint8_t unk_15C[0x4]; // 0x15C
xe::be<uint32_t> last_error; // 0x160
xe::be<uint32_t> fiber_ptr; // 0x164
uint8_t unk_168[0x4]; // 0x168
xe::be<uint32_t> creation_flags; // 0x16C
uint8_t unk_170[0xC]; // 0x170
xe::be<uint32_t> unk_17C; // 0x17C
uint8_t unk_180[0x930]; // 0x180
// This struct is actually quite long... so uh, not filling this out!
};
@@ -151,6 +188,8 @@ class XThread : public XObject, public cpu::Thread {
virtual void Execute();
virtual void Reenter(uint32_t address);
static void EnterCriticalRegion();
static void LeaveCriticalRegion();
uint32_t RaiseIrql(uint32_t new_irql);