regs.h File Reference

#include <stdint.h>

Go to the source code of this file.

Macros
#define	XCR0_XSAVE_SAVE_X87   (1 << 0)
#define	XCR0_XSAVE_SAVE_SSE   (1 << 1)
#define	XCR0_AVX_ENABLE   (1 << 2)
#define	XCR0_AVX512_ENABLE   (1 << 5)
#define	XCR0_ZMM0_15_ENABLE   (1 << 6)
#define	XCR0_ZMM16_32_ENABLE   (1 << 7)
#define	MSR_LAPIC   0x1B
#define	MSR_CPU_ID   0xC0000103
#define	MSR_EFER   0xC0000080
#define	MSR_STAR   0xC0000081
#define	MSR_LSTAR   0xC0000082
#define	MSR_SYSCALL_FLAG_MASK   0xC0000084
#define	MSR_GS_BASE   0xC0000101
#define	MSR_KERNEL_GS_BASE   0xc0000102
#define	EFER_SYSCALL_ENABLE   1
#define	RFLAGS_CARRY   (1 << 0)
#define	RFLAGS_ALWAYS_SET   (1 << 1)
#define	RFLAGS_PARITY   (1 << 2)
#define	RFLAGS_RESERVED1   (1 << 3)
#define	RFLAGS_AUX_CARRY   (1 << 4)
#define	RFLAGS_RESERVED2   (1 << 5)
#define	RFLAGS_ZERO   (1 << 6)
#define	RFLAGS_SIGN   (1 << 7)
#define	RFLAGS_TRAP   (1 << 8)
#define	RFLAGS_INTERRUPT_ENABLE   (1 << 9)
#define	RFLAGS_DIRECTION   (1 << 10)
#define	RFLAGS_OVERFLOW   (1 << 11)
#define	RFLAGS_IOPL   (1 << 12 | 1 << 13)
#define	RFLAGS_NESTED_TASK   (1 << 14)
#define	RFLAGS_MODE   (1 << 15)
#define	CR0_PROTECTED_MODE_ENABLE   (1 << 0)
#define	CR0_MONITOR_CO_PROCESSOR   (1 << 1)
#define	CR0_EMULATION   (1 << 2)
#define	CR0_TASK_SWITCHED   (1 << 3)
#define	CR0_EXTENSION_TYPE   (1 << 4)
#define	CR0_NUMERIC_ERROR_ENABLE   (1 << 5)
#define	CR0_WRITE_PROTECT   (1 << 16)
#define	CR0_ALIGNMENT_MASK   (1 << 18)
#define	CR0_NOT_WRITE_THROUGH   (1 << 29)
#define	CR0_CACHE_DISABLE   (1 << 30)
#define	CR0_PAGING_ENABLE   (1 << 31)
#define	CR4_PAGE_GLOBAL_ENABLE   (1 << 7)
#define	CR4_FXSR_ENABLE   (1 << 9)
#define	CR4_SIMD_EXCEPTION   (1 << 10)
#define	CR4_XSAVE_ENABLE   (1 << 18)

Functions
static void	xcr0_write (uint32_t xcr, uint64_t value)
static uint64_t	msr_read (uint32_t msr)
static void	msr_write (uint32_t msr, uint64_t value)
static uint64_t	rflags_read ()
static void	rflags_write (uint64_t value)
static uint64_t	cr4_read ()
static void	cr4_write (uint64_t value)
static uint64_t	cr3_read ()
static void	cr3_write (uint64_t value)
static uint64_t	cr2_read ()
static void	cr2_write (uint64_t value)
static uint64_t	cr0_read ()
static void	cr0_write (uint64_t value)
static uint64_t	rsp_read ()
static void	rsp_write (uint64_t value)
static uint64_t	rbp_read ()
static void	rbp_write (uint64_t value)

Macro Definition Documentation

CR0_ALIGNMENT_MASK

#define CR0_ALIGNMENT_MASK   (1 << 18)

Definition at line 46 of file regs.h.

CR0_CACHE_DISABLE

#define CR0_CACHE_DISABLE   (1 << 30)

Definition at line 48 of file regs.h.

CR0_EMULATION

#define CR0_EMULATION   (1 << 2)

Definition at line 41 of file regs.h.

CR0_EXTENSION_TYPE

#define CR0_EXTENSION_TYPE   (1 << 4)

Definition at line 43 of file regs.h.

CR0_MONITOR_CO_PROCESSOR

#define CR0_MONITOR_CO_PROCESSOR   (1 << 1)

Definition at line 40 of file regs.h.

CR0_NOT_WRITE_THROUGH

#define CR0_NOT_WRITE_THROUGH   (1 << 29)

Definition at line 47 of file regs.h.

CR0_NUMERIC_ERROR_ENABLE

#define CR0_NUMERIC_ERROR_ENABLE   (1 << 5)

Definition at line 44 of file regs.h.

CR0_PAGING_ENABLE

#define CR0_PAGING_ENABLE   (1 << 31)

Definition at line 49 of file regs.h.

CR0_PROTECTED_MODE_ENABLE

#define CR0_PROTECTED_MODE_ENABLE   (1 << 0)

Definition at line 39 of file regs.h.

CR0_TASK_SWITCHED

#define CR0_TASK_SWITCHED   (1 << 3)

Definition at line 42 of file regs.h.

CR0_WRITE_PROTECT

#define CR0_WRITE_PROTECT   (1 << 16)

Definition at line 45 of file regs.h.

CR4_FXSR_ENABLE

#define CR4_FXSR_ENABLE   (1 << 9)

Definition at line 52 of file regs.h.

CR4_PAGE_GLOBAL_ENABLE

#define CR4_PAGE_GLOBAL_ENABLE   (1 << 7)

Definition at line 51 of file regs.h.

CR4_SIMD_EXCEPTION

#define CR4_SIMD_EXCEPTION   (1 << 10)

Definition at line 53 of file regs.h.

CR4_XSAVE_ENABLE

#define CR4_XSAVE_ENABLE   (1 << 18)

Definition at line 54 of file regs.h.

EFER_SYSCALL_ENABLE

#define EFER_SYSCALL_ENABLE   1

Definition at line 21 of file regs.h.

MSR_CPU_ID

#define MSR_CPU_ID   0xC0000103

Definition at line 13 of file regs.h.

MSR_EFER

#define MSR_EFER   0xC0000080

Definition at line 14 of file regs.h.

MSR_GS_BASE

#define MSR_GS_BASE   0xC0000101

Definition at line 18 of file regs.h.

MSR_KERNEL_GS_BASE

#define MSR_KERNEL_GS_BASE   0xc0000102

Definition at line 19 of file regs.h.

MSR_LAPIC

#define MSR_LAPIC   0x1B

Definition at line 12 of file regs.h.

MSR_LSTAR

#define MSR_LSTAR   0xC0000082

Definition at line 16 of file regs.h.

MSR_STAR

#define MSR_STAR   0xC0000081

Definition at line 15 of file regs.h.

MSR_SYSCALL_FLAG_MASK

#define MSR_SYSCALL_FLAG_MASK   0xC0000084

Definition at line 17 of file regs.h.

RFLAGS_ALWAYS_SET

#define RFLAGS_ALWAYS_SET   (1 << 1)

Definition at line 24 of file regs.h.

RFLAGS_AUX_CARRY

#define RFLAGS_AUX_CARRY   (1 << 4)

Definition at line 27 of file regs.h.

RFLAGS_CARRY

#define RFLAGS_CARRY   (1 << 0)

Definition at line 23 of file regs.h.

RFLAGS_DIRECTION

#define RFLAGS_DIRECTION   (1 << 10)

Definition at line 33 of file regs.h.

RFLAGS_INTERRUPT_ENABLE

#define RFLAGS_INTERRUPT_ENABLE   (1 << 9)

Definition at line 32 of file regs.h.

RFLAGS_IOPL

#define RFLAGS_IOPL   (1 << 12 | 1 << 13)

Definition at line 35 of file regs.h.

RFLAGS_MODE

#define RFLAGS_MODE   (1 << 15)

Definition at line 37 of file regs.h.

RFLAGS_NESTED_TASK

#define RFLAGS_NESTED_TASK   (1 << 14)

Definition at line 36 of file regs.h.

RFLAGS_OVERFLOW

#define RFLAGS_OVERFLOW   (1 << 11)

Definition at line 34 of file regs.h.

RFLAGS_PARITY

#define RFLAGS_PARITY   (1 << 2)

Definition at line 25 of file regs.h.

RFLAGS_RESERVED1

#define RFLAGS_RESERVED1   (1 << 3)

Definition at line 26 of file regs.h.

RFLAGS_RESERVED2

#define RFLAGS_RESERVED2   (1 << 5)

Definition at line 28 of file regs.h.

RFLAGS_SIGN

#define RFLAGS_SIGN   (1 << 7)

Definition at line 30 of file regs.h.

RFLAGS_TRAP

#define RFLAGS_TRAP   (1 << 8)

Definition at line 31 of file regs.h.

RFLAGS_ZERO

#define RFLAGS_ZERO   (1 << 6)

Definition at line 29 of file regs.h.

XCR0_AVX512_ENABLE

#define XCR0_AVX512_ENABLE   (1 << 5)

Definition at line 8 of file regs.h.

XCR0_AVX_ENABLE

#define XCR0_AVX_ENABLE   (1 << 2)

Definition at line 7 of file regs.h.

XCR0_XSAVE_SAVE_SSE

#define XCR0_XSAVE_SAVE_SSE   (1 << 1)

Definition at line 6 of file regs.h.

XCR0_XSAVE_SAVE_X87

#define XCR0_XSAVE_SAVE_X87   (1 << 0)

Definition at line 5 of file regs.h.

XCR0_ZMM0_15_ENABLE

#define XCR0_ZMM0_15_ENABLE   (1 << 6)

Definition at line 9 of file regs.h.

XCR0_ZMM16_32_ENABLE

#define XCR0_ZMM16_32_ENABLE   (1 << 7)

Definition at line 10 of file regs.h.

Function Documentation

cr0_read()

static uint64_t cr0_read ( )

inlinestatic

Definition at line 126 of file regs.h.

Referenced by panic(), and simd_cpu_init().

cr0_write()

static void cr0_write ( uint64_t  value )

inlinestatic

Definition at line 133 of file regs.h.

Referenced by simd_cpu_init().

cr2_read()

static uint64_t cr2_read ( )

inlinestatic

Definition at line 114 of file regs.h.

Referenced by exception_handler(), panic(), and thread_handle_page_fault().

cr2_write()

static void cr2_write ( uint64_t  value )

inlinestatic

Definition at line 121 of file regs.h.

cr3_read()

static uint64_t cr3_read ( )

inlinestatic

Definition at line 102 of file regs.h.

Referenced by page_table_load(), panic(), tlb_invalidate(), and vmm_cpu_ctx_init_common().

cr3_write()

static void cr3_write ( uint64_t  value )

inlinestatic

Definition at line 109 of file regs.h.

Referenced by page_table_load(), tlb_invalidate(), and vmm_init().

cr4_read()

static uint64_t cr4_read ( )

inlinestatic

Definition at line 90 of file regs.h.

Referenced by panic(), simd_cpu_init(), simd_xsave_init(), and vmm_cpu_ctx_init_common().

cr4_write()

static void cr4_write ( uint64_t  value )

inlinestatic

Definition at line 97 of file regs.h.

Referenced by simd_cpu_init(), simd_xsave_init(), and vmm_cpu_ctx_init_common().

msr_read()

static uint64_t msr_read ( uint32_t  msr )

inlinestatic

Definition at line 63 of file regs.h.

Referenced by lapic_cpu_init(), smp_self(), smp_self_id_unsafe(), smp_self_unsafe(), and syscalls_cpu_init().

msr_write()

static void msr_write ( uint32_t  msr, uint64_t  value  )

inlinestatic

Definition at line 71 of file regs.h.

Referenced by cpu_init(), lapic_cpu_init(), smp_bootstrap_init_early(), syscall_ctx_load(), and syscalls_cpu_init().

rbp_read()

static uint64_t rbp_read ( )

inlinestatic

Definition at line 150 of file regs.h.

rbp_write()

static void rbp_write ( uint64_t  value )

inlinestatic

Definition at line 157 of file regs.h.

rflags_read()

static uint64_t rflags_read ( )

inlinestatic

Definition at line 78 of file regs.h.

Referenced by inode_truncate(), interrupt_disable(), interrupt_enable(), space_load(), vfs_create(), vfs_get_or_lookup_dentry(), vfs_getdents(), vfs_ioctl(), vfs_link(), vfs_mmap(), vfs_open(), vfs_open2(), vfs_read(), vfs_remove(), vfs_seek(), vfs_write(), wait_block_cancel(), and wait_block_commit().

rflags_write()

static void rflags_write ( uint64_t  value )

inlinestatic

Definition at line 85 of file regs.h.

rsp_read()

static uint64_t rsp_read ( )

inlinestatic

Definition at line 138 of file regs.h.

Referenced by kmain().

rsp_write()

static void rsp_write ( uint64_t  value )

inlinestatic

Definition at line 145 of file regs.h.

xcr0_write()

static void xcr0_write ( uint32_t  xcr, uint64_t  value  )

inlinestatic

Definition at line 56 of file regs.h.

Referenced by simd_xsave_init().