asm.S

#include "asm.h"

.section .text.__ebreak
.global __ebreak
__ebreak:
    ebreak
    ret

.section .text.__wfi
.global __wfi
__wfi:
    wfi
    ret

.section .text.__sfence_vma_all
.global __sfence_vma_all
__sfence_vma_all:
    sfence.vma
    ret

.section .text.__sfence_vma
.global __sfence_vma
__sfence_vma:
    sfence.vma a0, a1
    ret

// RISC-V hypervisor instructions.

// The switch for enabling LLVM support for asm generation.
// #define LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT


.section .text.__hfence_gvma
.global __hfence_gvma
__hfence_gvma:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hfence.gvma a0, a1
#else
    .word 1656029299
#endif
    ret
.section .text.__hfence_vvma
.global __hfence_vvma
__hfence_vvma:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hfence.vvma a0, a1
#else
    .word 582287475
#endif
    ret
.section .text.__hlv_b
.global __hlv_b
__hlv_b:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.b a0, a0
#else
    .word 1610958195
#endif
    ret
.section .text.__hlv_bu
.global __hlv_bu
__hlv_bu:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.bu a0, a0
#else
    .word 1612006771
#endif
    ret
.section .text.__hlv_h
.global __hlv_h
__hlv_h:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.h a0, a0
#else
    .word 1678067059
#endif
    ret
.section .text.__hlv_hu
.global __hlv_hu
__hlv_hu:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.hu a0, a0
#else
    .word 1679115635
#endif
    ret
.section .text.__hlvx_hu
.global __hlvx_hu
__hlvx_hu:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlvx.hu a0, a0
#else
    .word 1681212787
#endif
    ret
.section .text.__hlv_w
.global __hlv_w
__hlv_w:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.w a0, a0
#else
    .word 1745175923
#endif
    ret
.section .text.__hlvx_wu
.global __hlvx_wu
__hlvx_wu:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlvx.wu a0, a0
#else
    .word 1748321651
#endif
    ret
.section .text.__hsv_b
.global __hsv_b
__hsv_b:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hsv.b a0, a1
#else
    .word 1656045683
#endif
    ret
.section .text.__hsv_h
.global __hsv_h
__hsv_h:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hsv.h a0, a1
#else
    .word 1723154547
#endif
    ret
.section .text.__hsv_w
.global __hsv_w
__hsv_w:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hsv.w a0, a1
#else
    .word 1790263411
#endif
    ret
.section .text.__hlv_wu
.global __hlv_wu
__hlv_wu:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.wu a0, a0
#else
    .word 1746224499
#endif
    ret
.section .text.__hlv_d
.global __hlv_d
__hlv_d:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hlv.d a0, a0
#else
    .word 1812284787
#endif
    ret
.section .text.__hsv_d
.global __hsv_d
__hsv_d:
#ifdef LLVM_RISCV_HYPERVISOR_EXTENSION_SUPPORT
    hsv.d a0, a1
#else
    .word 1857372275
#endif
    ret


// User Trap Setup
RW(0x000, ustatus)  // User status register
RW(0x004, uie)      // User interrupt-enable register
RW(0x005, utvec)    // User trap handler base address

// User Trap Handling
RW(0x040, uscratch) // Scratch register for user trap handlers
RW(0x041, uepc)     // User exception program counter
RW(0x042, ucause)   // User trap cause
RW(0x043, utval)    // User bad address or instruction
RW(0x044, uip)      // User interrupt pending

// User Floating-Point CSRs
RW(0x001, fflags)   // Floating-Point Accrued Exceptions
RW(0x002, frm)      // Floating-Point Dynamic Rounding Mode
RW(0x003, fcsr)     // Floating-Point Control and Status Register (frm + fflags)

// User Counter/Timers
RO(  0xC00, cycle)          // Cycle counter for RDCYCLE instruction
RO(  0xC01, time)           // Timer for RDTIME instruction
RO(  0xC02, instret)        // Instructions-retired counter for RDINSTRET instruction
RO(  0xC03, hpmcounter3)    // Performance-monitoring counter
RO(  0xC04, hpmcounter4)    // Performance-monitoring counter
RO(  0xC05, hpmcounter5)    // Performance-monitoring counter
RO(  0xC06, hpmcounter6)    // Performance-monitoring counter
RO(  0xC07, hpmcounter7)    // Performance-monitoring counter
RO(  0xC08, hpmcounter8)    // Performance-monitoring counter
RO(  0xC09, hpmcounter9)    // Performance-monitoring counter
RO(  0xC0A, hpmcounter10)   // Performance-monitoring counter
RO(  0xC0B, hpmcounter11)   // Performance-monitoring counter
RO(  0xC0C, hpmcounter12)   // Performance-monitoring counter
RO(  0xC0D, hpmcounter13)   // Performance-monitoring counter
RO(  0xC0E, hpmcounter14)   // Performance-monitoring counter
RO(  0xC0F, hpmcounter15)   // Performance-monitoring counter
RO(  0xC10, hpmcounter16)   // Performance-monitoring counter
RO(  0xC11, hpmcounter17)   // Performance-monitoring counter
RO(  0xC12, hpmcounter18)   // Performance-monitoring counter
RO(  0xC13, hpmcounter19)   // Performance-monitoring counter
RO(  0xC14, hpmcounter20)   // Performance-monitoring counter
RO(  0xC15, hpmcounter21)   // Performance-monitoring counter
RO(  0xC16, hpmcounter22)   // Performance-monitoring counter
RO(  0xC17, hpmcounter23)   // Performance-monitoring counter
RO(  0xC18, hpmcounter24)   // Performance-monitoring counter
RO(  0xC19, hpmcounter25)   // Performance-monitoring counter
RO(  0xC1A, hpmcounter26)   // Performance-monitoring counter
RO(  0xC1B, hpmcounter27)   // Performance-monitoring counter
RO(  0xC1C, hpmcounter28)   // Performance-monitoring counter
RO(  0xC1D, hpmcounter29)   // Performance-monitoring counter
RO(  0xC1E, hpmcounter30)   // Performance-monitoring counter
RO(  0xC1F, hpmcounter31)   // Performance-monitoring counter
RO32(0xC80, cycleh)         // Upper 32 bits of cycle, RV32I only
RO32(0xC81, timeh)          // Upper 32 bits of time, RV32I only
RO32(0xC82, instreth)       // Upper 32 bits of instret, RV32I only
RO32(0xC83, hpmcounter3h)   // Upper 32 bits of hpmcounter3, RV32I only
RO32(0xC84, hpmcounter4h)
RO32(0xC85, hpmcounter5h)
RO32(0xC86, hpmcounter6h)
RO32(0xC87, hpmcounter7h)
RO32(0xC88, hpmcounter8h)
RO32(0xC89, hpmcounter9h)
RO32(0xC8A, hpmcounter10h)
RO32(0xC8B, hpmcounter11h)
RO32(0xC8C, hpmcounter12h)
RO32(0xC8D, hpmcounter13h)
RO32(0xC8E, hpmcounter14h)
RO32(0xC8F, hpmcounter15h)
RO32(0xC90, hpmcounter16h)
RO32(0xC91, hpmcounter17h)
RO32(0xC92, hpmcounter18h)
RO32(0xC93, hpmcounter19h)
RO32(0xC94, hpmcounter20h)
RO32(0xC95, hpmcounter21h)
RO32(0xC96, hpmcounter22h)
RO32(0xC97, hpmcounter23h)
RO32(0xC98, hpmcounter24h)
RO32(0xC99, hpmcounter25h)
RO32(0xC9A, hpmcounter26h)
RO32(0xC9B, hpmcounter27h)
RO32(0xC9C, hpmcounter28h)
RO32(0xC9D, hpmcounter29h)
RO32(0xC9E, hpmcounter30h)
RO32(0xC9F, hpmcounter31h)

// Supervisor Trap Setup
RW(0x100, sstatus)      // Supervisor status register
RW(0x102, sedeleg)      // Supervisor exception delegation register
RW(0x103, sideleg)      // Supervisor interrupt delegation register
RW(0x104, sie)          // Supervisor interrupt-enable register
RW(0x105, stvec)        // Supervisor trap handler base address
RW(0x106, scounteren)   // Supervisor counter enable

// Supervisor Trap Handling
RW(0x140, sscratch)     // Scratch register for supervisor trap handlers
RW(0x141, sepc)         // Supervisor exception program counter
RW(0x142, scause)       // Supervisor trap cause
RW(0x143, stval)        // Supervisor bad address or instruction
RW(0x144, sip)          // Supervisor interrupt pending

// Supervisor Protection and Translation
RW(0x180, satp)         // Supervisor address translation and protection

// Machine Information Registers
RO(0xF11, mvendorid)    // Vendor ID
RO(0xF12, marchid)      // Architecture ID
RO(0xF13, mimpid)       // Implementation ID
RO(0xF14, mhartid)      // Hardware thread ID

// Machine Trap Setup
RW(0x300, mstatus)      // Machine status register
RW(0x301, misa)         // ISA and extensions
RW(0x302, medeleg)      // Machine exception delegation register
RW(0x303, mideleg)      // Machine interrupt delegation register
RW(0x304, mie)          // Machine interrupt-enable register
RW(0x305, mtvec)        // Machine trap handler base address
RW(0x306, mcounteren)   // Machine counter enable

// Machine Trap Handling
RW(0x340, mscratch)     // Scratch register for machine trap handlers
RW(0x341, mepc)         // Machine exception program counter
RW(0x342, mcause)       // Machine trap cause
RW(0x343, mtval)        // Machine bad address or instruction
RW(0x344, mip)          // Machine interrupt pending

// Machine Protection and Translation
RW(  0x3A0, pmpcfg0)    // Physical memory protection configuration
RW32(0x3A1, pmpcfg1)    // Physical memory protection configuration, RV32 only
RW(  0x3A2, pmpcfg2)    // Physical memory protection configuration
RW32(0x3A3, pmpcfg3)    // Physical memory protection configuration, RV32 only
RW(  0x3B0, pmpaddr0)   // Physical memory protection address register
RW(  0x3B1, pmpaddr1)   // Physical memory protection address register
RW(  0x3B2, pmpaddr2)   // Physical memory protection address register
RW(  0x3B3, pmpaddr3)   // Physical memory protection address register
RW(  0x3B4, pmpaddr4)   // Physical memory protection address register
RW(  0x3B5, pmpaddr5)   // Physical memory protection address register
RW(  0x3B6, pmpaddr6)   // Physical memory protection address register
RW(  0x3B7, pmpaddr7)   // Physical memory protection address register
RW(  0x3B8, pmpaddr8)   // Physical memory protection address register
RW(  0x3B9, pmpaddr9)   // Physical memory protection address register
RW(  0x3BA, pmpaddr10)  // Physical memory protection address register
RW(  0x3BB, pmpaddr11)  // Physical memory protection address register
RW(  0x3BC, pmpaddr12)  // Physical memory protection address register
RW(  0x3BD, pmpaddr13)  // Physical memory protection address register
RW(  0x3BE, pmpaddr14)  // Physical memory protection address register
RW(  0x3BF, pmpaddr15)  // Physical memory protection address register

// Machine Counter/Timers
RO(  0xB00, mcycle)          // Machine cycle counter
RO(  0xB02, minstret)        // Machine instructions-retired counter
RO(  0xB03, mhpmcounter3)    // Machine performance-monitoring counter
RO(  0xB04, mhpmcounter4)    // Machine performance-monitoring counter
RO(  0xB05, mhpmcounter5)    // Machine performance-monitoring counter
RO(  0xB06, mhpmcounter6)    // Machine performance-monitoring counter
RO(  0xB07, mhpmcounter7)    // Machine performance-monitoring counter
RO(  0xB08, mhpmcounter8)    // Machine performance-monitoring counter
RO(  0xB09, mhpmcounter9)    // Machine performance-monitoring counter
RO(  0xB0A, mhpmcounter10)   // Machine performance-monitoring counter
RO(  0xB0B, mhpmcounter11)   // Machine performance-monitoring counter
RO(  0xB0C, mhpmcounter12)   // Machine performance-monitoring counter
RO(  0xB0D, mhpmcounter13)   // Machine performance-monitoring counter
RO(  0xB0E, mhpmcounter14)   // Machine performance-monitoring counter
RO(  0xB0F, mhpmcounter15)   // Machine performance-monitoring counter
RO(  0xB10, mhpmcounter16)   // Machine performance-monitoring counter
RO(  0xB11, mhpmcounter17)   // Machine performance-monitoring counter
RO(  0xB12, mhpmcounter18)   // Machine performance-monitoring counter
RO(  0xB13, mhpmcounter19)   // Machine performance-monitoring counter
RO(  0xB14, mhpmcounter20)   // Machine performance-monitoring counter
RO(  0xB15, mhpmcounter21)   // Machine performance-monitoring counter
RO(  0xB16, mhpmcounter22)   // Machine performance-monitoring counter
RO(  0xB17, mhpmcounter23)   // Machine performance-monitoring counter
RO(  0xB18, mhpmcounter24)   // Machine performance-monitoring counter
RO(  0xB19, mhpmcounter25)   // Machine performance-monitoring counter
RO(  0xB1A, mhpmcounter26)   // Machine performance-monitoring counter
RO(  0xB1B, mhpmcounter27)   // Machine performance-monitoring counter
RO(  0xB1C, mhpmcounter28)   // Machine performance-monitoring counter
RO(  0xB1D, mhpmcounter29)   // Machine performance-monitoring counter
RO(  0xB1E, mhpmcounter30)   // Machine performance-monitoring counter
RO(  0xB1F, mhpmcounter31)   // Machine performance-monitoring counter
RO32(0xB80, mcycleh)         // Upper 32 bits of mcycle, RV32I only
RO32(0xB82, minstreth)       // Upper 32 bits of minstret, RV32I only
RO32(0xB83, mhpmcounter3h)   // Upper 32 bits of mhpmcounter3, RV32I only
RO32(0xB84, mhpmcounter4h)
RO32(0xB85, mhpmcounter5h)
RO32(0xB86, mhpmcounter6h)
RO32(0xB87, mhpmcounter7h)
RO32(0xB88, mhpmcounter8h)
RO32(0xB89, mhpmcounter9h)
RO32(0xB8A, mhpmcounter10h)
RO32(0xB8B, mhpmcounter11h)
RO32(0xB8C, mhpmcounter12h)
RO32(0xB8D, mhpmcounter13h)
RO32(0xB8E, mhpmcounter14h)
RO32(0xB8F, mhpmcounter15h)
RO32(0xB90, mhpmcounter16h)
RO32(0xB91, mhpmcounter17h)
RO32(0xB92, mhpmcounter18h)
RO32(0xB93, mhpmcounter19h)
RO32(0xB94, mhpmcounter20h)
RO32(0xB95, mhpmcounter21h)
RO32(0xB96, mhpmcounter22h)
RO32(0xB97, mhpmcounter23h)
RO32(0xB98, mhpmcounter24h)
RO32(0xB99, mhpmcounter25h)
RO32(0xB9A, mhpmcounter26h)
RO32(0xB9B, mhpmcounter27h)
RO32(0xB9C, mhpmcounter28h)
RO32(0xB9D, mhpmcounter29h)
RO32(0xB9E, mhpmcounter30h)
RO32(0xB9F, mhpmcounter31h)

RW(0x323, mhpmevent3)   // Machine performance-monitoring event selector
RW(0x324, mhpmevent4)   // Machine performance-monitoring event selector
RW(0x325, mhpmevent5)   // Machine performance-monitoring event selector
RW(0x326, mhpmevent6)   // Machine performance-monitoring event selector
RW(0x327, mhpmevent7)   // Machine performance-monitoring event selector
RW(0x328, mhpmevent8)   // Machine performance-monitoring event selector
RW(0x329, mhpmevent9)   // Machine performance-monitoring event selector
RW(0x32A, mhpmevent10)  // Machine performance-monitoring event selector
RW(0x32B, mhpmevent11)  // Machine performance-monitoring event selector
RW(0x32C, mhpmevent12)  // Machine performance-monitoring event selector
RW(0x32D, mhpmevent13)  // Machine performance-monitoring event selector
RW(0x32E, mhpmevent14)  // Machine performance-monitoring event selector
RW(0x32F, mhpmevent15)  // Machine performance-monitoring event selector
RW(0x330, mhpmevent16)  // Machine performance-monitoring event selector
RW(0x331, mhpmevent17)  // Machine performance-monitoring event selector
RW(0x332, mhpmevent18)  // Machine performance-monitoring event selector
RW(0x333, mhpmevent19)  // Machine performance-monitoring event selector
RW(0x334, mhpmevent20)  // Machine performance-monitoring event selector
RW(0x335, mhpmevent21)  // Machine performance-monitoring event selector
RW(0x336, mhpmevent22)  // Machine performance-monitoring event selector
RW(0x337, mhpmevent23)  // Machine performance-monitoring event selector
RW(0x338, mhpmevent24)  // Machine performance-monitoring event selector
RW(0x339, mhpmevent25)  // Machine performance-monitoring event selector
RW(0x33A, mhpmevent26)  // Machine performance-monitoring event selector
RW(0x33B, mhpmevent27)  // Machine performance-monitoring event selector
RW(0x33C, mhpmevent28)  // Machine performance-monitoring event selector
RW(0x33D, mhpmevent29)  // Machine performance-monitoring event selector
RW(0x33E, mhpmevent30)  // Machine performance-monitoring event selector
RW(0x33F, mhpmevent31)  // Machine performance-monitoring event selector

// Debug/Trace Registers (shared with Debug Mode)
RW(0x7A0, tselect)  // Debug/Trace trigger register select
RW(0x7A1, tdata1)   // First Debug/Trace trigger data register
RW(0x7A2, tdata2)   // Second Debug/Trace trigger data register
RW(0x7A3, tdata3)   // Third Debug/Trace trigger data register

// Debug Mode Registers
RW(0x7B0, dcsr)     // Debug control and status register
RW(0x7B1, dpc)      // Debug PC
RW(0x7B2, dscratch) // Debug scratch register

// Hypervisor Trap Setup
RW(0x600, hstatus)    // Hypervisor status register
RW(0x602, hedeleg)    // Hypervisor exception delegation register
RW(0x603, hideleg)    // Hypervisor interrupt delegation register
RW(0x604, hie)        // Hypervisor interrupt-enable register
RW(0x606, hcounteren) // Hypervisor counter enable
RW(0x607, hgeie)      // Hypervisor guest external interrupt-enable register

// Hypervisor Trap Handling
RW(0x643, htval)  // Hypervisor bad guest physical address
RW(0x644, hip)    // Hypervisor interrupt pending
RW(0x645, hvip)   // Hypervisor virtual interrupt pending
RW(0x64a, htinst) // Hypervisor trap instruction (transformed)
RW(0xe12, hgeip)  // Hypervisor guest external interrupt pending

// Hypervisor Protection and Translation
RO(0x680, hgatp) // Hypervisor guest address translation and protection

// Debug/Trace Registers
RW(0x6a8, hcontext) // Hypervisor-mode context register

// Hypervisor Counter/Timer Virtualization Registers
RW(0x605, htimedelta)    // Delta for VS/VU-mode timer
RW32(0x615, htimedeltah) // Upper 32 bits of {\tt htimedelta}, RV32 only

// Virtual Supervisor Registers
RW(0x200, vsstatus)  // Virtual supervisor status register
RW(0x204, vsie)      // Virtual supervisor interrupt-enable register
RW(0x205, vstvec)    // Virtual supervisor trap handler base address
RW(0x240, vsscratch) // Virtual supervisor scratch register
RW(0x241, vsepc)     // Virtual supervisor exception program counter
RW(0x242, vscause)   // Virtual supervisor trap cause
RW(0x243, vstval)    // Virtual supervisor bad address or instruction
RW(0x244, vsip)      // Virtual supervisor interrupt pending
RW(0x280, vsatp)     // Virtual supervisor address translation and protection