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Atmosphere/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_assembly_offsets.h
Michael Scire 79dbc22cb2 kern: implement new thread context/fpu semantics
2022-03-22 19:59:39 -07:00

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/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_build_config.hpp>
/* TODO: Different header for this? */
#define AMS_KERN_NUM_SUPERVISOR_CALLS 0xC0
/* ams::kern::KThread, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp */
#define THREAD_KERNEL_STACK_TOP 0x280
/* ams::kern::KThread::StackParameters, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp */
#define THREAD_STACK_PARAMETERS_SIZE 0x130
#define THREAD_STACK_PARAMETERS_SVC_PERMISSION 0x00
#define THREAD_STACK_PARAMETERS_CALLER_SAVE_FPU_REGISTERS 0x18
#define THREAD_STACK_PARAMETERS_CUR_THREAD 0x20
#define THREAD_STACK_PARAMETERS_DISABLE_COUNT 0x28
#define THREAD_STACK_PARAMETERS_DPC_FLAGS 0x2A
#define THREAD_STACK_PARAMETERS_CURRENT_SVC_ID 0x2B
#define THREAD_STACK_PARAMETERS_RESERVED_2C 0x2C
#define THREAD_STACK_PARAMETERS_EXCEPTION_FLAGS 0x2D
#define THREAD_STACK_PARAMETERS_IS_PINNED 0x2E
#define THREAD_STACK_PARAMETERS_RESERVED_2F 0x2F
#define THREAD_STACK_PARAMETERS_THREAD_CONTEXT 0x30
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_CALLING_SVC (0)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_EXCEPTION_HANDLER (1)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_FPU_CONTEXT_RESTORE_NEEDED (2)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_FPU_64_BIT (3)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_USERMODE_EXCEPTION_HANDLER (4)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_CACHE_MAINTENANCE_OPERATION (5)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_TLB_MAINTENANCE_OPERATION (6)
#if defined(MESOSPHERE_ENABLE_HARDWARE_SINGLE_STEP)
#define THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_HARDWARE_SINGLE_STEP (7)
#endif
#define THREAD_EXCEPTION_FLAG_IS_CALLING_SVC (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_CALLING_SVC)
#define THREAD_EXCEPTION_FLAG_IS_IN_EXCEPTION_HANDLER (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_EXCEPTION_HANDLER)
#define THREAD_EXCEPTION_FLAG_IS_FPU_CONTEXT_RESTORE_NEEDED (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_FPU_CONTEXT_RESTORE_NEEDED)
#define THREAD_EXCEPTION_FLAG_IS_FPU_64_BIT (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_FPU_64_BIT)
#define THREAD_EXCEPTION_FLAG_IS_IN_USERMODE_EXCEPTION_HANDLER (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_USERMODE_EXCEPTION_HANDLER)
#define THREAD_EXCEPTION_FLAG_IS_IN_CACHE_MAINTENANCE_OPERATION (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_CACHE_MAINTENANCE_OPERATION)
#define THREAD_EXCEPTION_FLAG_IS_IN_TLB_MAINTENANCE_OPERATION (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_IN_TLB_MAINTENANCE_OPERATION)
#if defined(MESOSPHERE_ENABLE_HARDWARE_SINGLE_STEP)
#define THREAD_EXCEPTION_FLAG_IS_HARDWARE_SINGLE_STEP (1 << THREAD_EXCEPTION_FLAG_BIT_INDEX_IS_HARDWARE_SINGLE_STEP)
#endif
/* ams::kern::arch::arm64::KThreadContext, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_thread_context.hpp */
#define THREAD_CONTEXT_SIZE 0x100
#define THREAD_CONTEXT_CPU_REGISTERS 0x000
#define THREAD_CONTEXT_X19 0x000
#define THREAD_CONTEXT_X20 0x008
#define THREAD_CONTEXT_X21 0x010
#define THREAD_CONTEXT_X22 0x018
#define THREAD_CONTEXT_X23 0x020
#define THREAD_CONTEXT_X24 0x028
#define THREAD_CONTEXT_X25 0x030
#define THREAD_CONTEXT_X26 0x038
#define THREAD_CONTEXT_X27 0x040
#define THREAD_CONTEXT_X28 0x048
#define THREAD_CONTEXT_X29 0x050
#define THREAD_CONTEXT_LR 0x058
#define THREAD_CONTEXT_SP 0x060
#define THREAD_CONTEXT_FPCR 0x068
#define THREAD_CONTEXT_FPSR 0x06C
#define THREAD_CONTEXT_FPU_REGISTERS 0x070
#define THREAD_CONTEXT_LOCKED 0x0F0
#define THREAD_CONTEXT_X19_X20 THREAD_CONTEXT_X19
#define THREAD_CONTEXT_X21_X22 THREAD_CONTEXT_X21
#define THREAD_CONTEXT_X23_X24 THREAD_CONTEXT_X23
#define THREAD_CONTEXT_X25_X26 THREAD_CONTEXT_X25
#define THREAD_CONTEXT_X27_X28 THREAD_CONTEXT_X27
#define THREAD_CONTEXT_X29_X30 THREAD_CONTEXT_X29
#define THREAD_CONTEXT_LR_SP THREAD_CONTEXT_LR
#define THREAD_CONTEXT_SP_FPCR_FPSR THREAD_CONTEXT_SP
#define THREAD_CONTEXT_FPCR_FPSR THREAD_CONTEXT_FPCR
#define THREAD_CONTEXT_FPU64_Q8 (THREAD_CONTEXT_FPU_REGISTERS + 0x00)
#define THREAD_CONTEXT_FPU64_Q9 (THREAD_CONTEXT_FPU_REGISTERS + 0x10)
#define THREAD_CONTEXT_FPU64_Q10 (THREAD_CONTEXT_FPU_REGISTERS + 0x20)
#define THREAD_CONTEXT_FPU64_Q11 (THREAD_CONTEXT_FPU_REGISTERS + 0x30)
#define THREAD_CONTEXT_FPU64_Q12 (THREAD_CONTEXT_FPU_REGISTERS + 0x40)
#define THREAD_CONTEXT_FPU64_Q13 (THREAD_CONTEXT_FPU_REGISTERS + 0x50)
#define THREAD_CONTEXT_FPU64_Q14 (THREAD_CONTEXT_FPU_REGISTERS + 0x60)
#define THREAD_CONTEXT_FPU64_Q15 (THREAD_CONTEXT_FPU_REGISTERS + 0x70)
#define THREAD_CONTEXT_FPU64_Q8_Q9 THREAD_CONTEXT_FPU64_Q8
#define THREAD_CONTEXT_FPU64_Q10_Q11 THREAD_CONTEXT_FPU64_Q10
#define THREAD_CONTEXT_FPU64_Q12_Q13 THREAD_CONTEXT_FPU64_Q12
#define THREAD_CONTEXT_FPU64_Q14_Q15 THREAD_CONTEXT_FPU64_Q14
#define THREAD_CONTEXT_FPU32_Q4 (THREAD_CONTEXT_FPU_REGISTERS + 0x00)
#define THREAD_CONTEXT_FPU32_Q5 (THREAD_CONTEXT_FPU_REGISTERS + 0x10)
#define THREAD_CONTEXT_FPU32_Q6 (THREAD_CONTEXT_FPU_REGISTERS + 0x20)
#define THREAD_CONTEXT_FPU32_Q7 (THREAD_CONTEXT_FPU_REGISTERS + 0x30)
#define THREAD_CONTEXT_FPU32_Q4_Q5 THREAD_CONTEXT_FPU32_Q4
#define THREAD_CONTEXT_FPU32_Q6_Q7 THREAD_CONTEXT_FPU32_Q6
#define THREAD_FPU64_CONTEXT_Q0 0x000
#define THREAD_FPU64_CONTEXT_Q1 0x010
#define THREAD_FPU64_CONTEXT_Q2 0x020
#define THREAD_FPU64_CONTEXT_Q3 0x030
#define THREAD_FPU64_CONTEXT_Q4 0x040
#define THREAD_FPU64_CONTEXT_Q5 0x050
#define THREAD_FPU64_CONTEXT_Q6 0x060
#define THREAD_FPU64_CONTEXT_Q7 0x070
#define THREAD_FPU64_CONTEXT_Q16 0x080
#define THREAD_FPU64_CONTEXT_Q17 0x090
#define THREAD_FPU64_CONTEXT_Q18 0x0A0
#define THREAD_FPU64_CONTEXT_Q19 0x0B0
#define THREAD_FPU64_CONTEXT_Q20 0x0C0
#define THREAD_FPU64_CONTEXT_Q21 0x0D0
#define THREAD_FPU64_CONTEXT_Q22 0x0E0
#define THREAD_FPU64_CONTEXT_Q23 0x0F0
#define THREAD_FPU64_CONTEXT_Q24 0x100
#define THREAD_FPU64_CONTEXT_Q25 0x110
#define THREAD_FPU64_CONTEXT_Q26 0x120
#define THREAD_FPU64_CONTEXT_Q27 0x130
#define THREAD_FPU64_CONTEXT_Q28 0x140
#define THREAD_FPU64_CONTEXT_Q29 0x150
#define THREAD_FPU64_CONTEXT_Q30 0x160
#define THREAD_FPU64_CONTEXT_Q31 0x170
#define THREAD_FPU64_CONTEXT_Q0_Q1 THREAD_FPU64_CONTEXT_Q0
#define THREAD_FPU64_CONTEXT_Q2_Q3 THREAD_FPU64_CONTEXT_Q2
#define THREAD_FPU64_CONTEXT_Q4_Q5 THREAD_FPU64_CONTEXT_Q4
#define THREAD_FPU64_CONTEXT_Q6_Q7 THREAD_FPU64_CONTEXT_Q6
#define THREAD_FPU64_CONTEXT_Q16_Q17 THREAD_FPU64_CONTEXT_Q16
#define THREAD_FPU64_CONTEXT_Q18_Q19 THREAD_FPU64_CONTEXT_Q18
#define THREAD_FPU64_CONTEXT_Q20_Q21 THREAD_FPU64_CONTEXT_Q20
#define THREAD_FPU64_CONTEXT_Q22_Q23 THREAD_FPU64_CONTEXT_Q22
#define THREAD_FPU64_CONTEXT_Q24_Q25 THREAD_FPU64_CONTEXT_Q24
#define THREAD_FPU64_CONTEXT_Q26_Q27 THREAD_FPU64_CONTEXT_Q26
#define THREAD_FPU64_CONTEXT_Q28_Q29 THREAD_FPU64_CONTEXT_Q28
#define THREAD_FPU64_CONTEXT_Q30_Q31 THREAD_FPU64_CONTEXT_Q30
#define THREAD_FPU32_CONTEXT_Q0 0x000
#define THREAD_FPU32_CONTEXT_Q1 0x010
#define THREAD_FPU32_CONTEXT_Q2 0x020
#define THREAD_FPU32_CONTEXT_Q3 0x030
#define THREAD_FPU32_CONTEXT_Q8 0x040
#define THREAD_FPU32_CONTEXT_Q9 0x050
#define THREAD_FPU32_CONTEXT_Q10 0x060
#define THREAD_FPU32_CONTEXT_Q11 0x070
#define THREAD_FPU32_CONTEXT_Q12 0x080
#define THREAD_FPU32_CONTEXT_Q13 0x090
#define THREAD_FPU32_CONTEXT_Q14 0x0A0
#define THREAD_FPU32_CONTEXT_Q15 0x0B0
#define THREAD_FPU32_CONTEXT_Q0_Q1 THREAD_FPU32_CONTEXT_Q0
#define THREAD_FPU32_CONTEXT_Q2_Q3 THREAD_FPU32_CONTEXT_Q2
#define THREAD_FPU32_CONTEXT_Q8_Q9 THREAD_FPU32_CONTEXT_Q8
#define THREAD_FPU32_CONTEXT_Q10_Q11 THREAD_FPU32_CONTEXT_Q10
#define THREAD_FPU32_CONTEXT_Q12_Q13 THREAD_FPU32_CONTEXT_Q12
#define THREAD_FPU32_CONTEXT_Q14_Q15 THREAD_FPU32_CONTEXT_Q14
/* ams::kern::arch::arm64::KExceptionContext, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_exception_context.hpp */
#define EXCEPTION_CONTEXT_SIZE 0x120
#define EXCEPTION_CONTEXT_X0 0x000
#define EXCEPTION_CONTEXT_X1 0x008
#define EXCEPTION_CONTEXT_X2 0x010
#define EXCEPTION_CONTEXT_X3 0x018
#define EXCEPTION_CONTEXT_X4 0x020
#define EXCEPTION_CONTEXT_X5 0x028
#define EXCEPTION_CONTEXT_X6 0x030
#define EXCEPTION_CONTEXT_X7 0x038
#define EXCEPTION_CONTEXT_X8 0x040
#define EXCEPTION_CONTEXT_X9 0x048
#define EXCEPTION_CONTEXT_X10 0x050
#define EXCEPTION_CONTEXT_X11 0x058
#define EXCEPTION_CONTEXT_X12 0x060
#define EXCEPTION_CONTEXT_X13 0x068
#define EXCEPTION_CONTEXT_X14 0x070
#define EXCEPTION_CONTEXT_X15 0x078
#define EXCEPTION_CONTEXT_X16 0x080
#define EXCEPTION_CONTEXT_X17 0x088
#define EXCEPTION_CONTEXT_X18 0x090
#define EXCEPTION_CONTEXT_X19 0x098
#define EXCEPTION_CONTEXT_X20 0x0A0
#define EXCEPTION_CONTEXT_X21 0x0A8
#define EXCEPTION_CONTEXT_X22 0x0B0
#define EXCEPTION_CONTEXT_X23 0x0B8
#define EXCEPTION_CONTEXT_X24 0x0C0
#define EXCEPTION_CONTEXT_X25 0x0C8
#define EXCEPTION_CONTEXT_X26 0x0D0
#define EXCEPTION_CONTEXT_X27 0x0D8
#define EXCEPTION_CONTEXT_X28 0x0E0
#define EXCEPTION_CONTEXT_X29 0x0E8
#define EXCEPTION_CONTEXT_X30 0x0F0
#define EXCEPTION_CONTEXT_SP 0x0F8
#define EXCEPTION_CONTEXT_PC 0x100
#define EXCEPTION_CONTEXT_PSR 0x108
#define EXCEPTION_CONTEXT_TPIDR 0x110
#define EXCEPTION_CONTEXT_X0_X1 EXCEPTION_CONTEXT_X0
#define EXCEPTION_CONTEXT_X2_X3 EXCEPTION_CONTEXT_X2
#define EXCEPTION_CONTEXT_X4_X5 EXCEPTION_CONTEXT_X4
#define EXCEPTION_CONTEXT_X6_X7 EXCEPTION_CONTEXT_X6
#define EXCEPTION_CONTEXT_X8_X9 EXCEPTION_CONTEXT_X8
#define EXCEPTION_CONTEXT_X10_X11 EXCEPTION_CONTEXT_X10
#define EXCEPTION_CONTEXT_X12_X13 EXCEPTION_CONTEXT_X12
#define EXCEPTION_CONTEXT_X14_X15 EXCEPTION_CONTEXT_X14
#define EXCEPTION_CONTEXT_X16_X17 EXCEPTION_CONTEXT_X16
#define EXCEPTION_CONTEXT_X18_X19 EXCEPTION_CONTEXT_X18
#define EXCEPTION_CONTEXT_X20_X21 EXCEPTION_CONTEXT_X20
#define EXCEPTION_CONTEXT_X22_X23 EXCEPTION_CONTEXT_X22
#define EXCEPTION_CONTEXT_X24_X25 EXCEPTION_CONTEXT_X24
#define EXCEPTION_CONTEXT_X26_X27 EXCEPTION_CONTEXT_X26
#define EXCEPTION_CONTEXT_X28_X29 EXCEPTION_CONTEXT_X28
#define EXCEPTION_CONTEXT_X30_SP EXCEPTION_CONTEXT_X30
#define EXCEPTION_CONTEXT_PC_PSR EXCEPTION_CONTEXT_PC
#define EXCEPTION_CONTEXT_X9_X10 EXCEPTION_CONTEXT_X9
#define EXCEPTION_CONTEXT_X19_X20 EXCEPTION_CONTEXT_X19
#define EXCEPTION_CONTEXT_X21_X22 EXCEPTION_CONTEXT_X21
#define EXCEPTION_CONTEXT_X23_X24 EXCEPTION_CONTEXT_X23
#define EXCEPTION_CONTEXT_X25_X26 EXCEPTION_CONTEXT_X25
#define EXCEPTION_CONTEXT_X27_X28 EXCEPTION_CONTEXT_X27
#define EXCEPTION_CONTEXT_X29_X30 EXCEPTION_CONTEXT_X29
#define EXCEPTION_CONTEXT_SP_PC EXCEPTION_CONTEXT_SP
#define EXCEPTION_CONTEXT_PSR_TPIDR EXCEPTION_CONTEXT_PSR
/* ams::svc::arch::arm64::ThreadLocalRegion, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libvapours/include/vapours/svc/arch/arm64/svc_thread_local_region.hpp */
#define THREAD_LOCAL_REGION_MESSAGE_BUFFER 0x000
#define THREAD_LOCAL_REGION_DISABLE_COUNT 0x100
#define THREAD_LOCAL_REGION_INTERRUPT_FLAG 0x102
#define THREAD_LOCAL_REGION_SIZE 0x200
/* ams::kern::init::KInitArguments, https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/arch/arm64/init/kern_k_init_arguments.hpp */
#define INIT_ARGUMENTS_SIZE 0x60
#define INIT_ARGUMENTS_TTBR0 0x00
#define INIT_ARGUMENTS_TTBR1 0x08
#define INIT_ARGUMENTS_TCR 0x10
#define INIT_ARGUMENTS_MAIR 0x18
#define INIT_ARGUMENTS_CPUACTLR 0x20
#define INIT_ARGUMENTS_CPUECTLR 0x28
#define INIT_ARGUMENTS_SCTLR 0x30
#define INIT_ARGUMENTS_SP 0x38
#define INIT_ARGUMENTS_ENTRYPOINT 0x40
#define INIT_ARGUMENTS_ARGUMENT 0x48
#define INIT_ARGUMENTS_SETUP_FUNCTION 0x50
#define INIT_ARGUMENTS_EXCEPTION_STACK 0x58
/* ams::kern::KScheduler (::SchedulingState), https://github.com/Atmosphere-NX/Atmosphere/blob/master/libraries/libmesosphere/include/mesosphere/kern_k_scheduler.hpp */
/* NOTE: Due to constraints on ldarb relative offsets, KSCHEDULER_NEEDS_SCHEDULING cannot trivially be changed, and will require assembly edits. */
#define KSCHEDULER_NEEDS_SCHEDULING 0x00
#define KSCHEDULER_INTERRUPT_TASK_RUNNABLE 0x01
#define KSCHEDULER_HIGHEST_PRIORITY_THREAD 0x10
#define KSCHEDULER_IDLE_THREAD_STACK 0x18
#define KSCHEDULER_PREVIOUS_THREAD 0x20
#define KSCHEDULER_INTERRUPT_TASK_MANAGER 0x28
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