cpu.h File Reference

#include <kernel/config.h>
#include <kernel/cpu/stack_pointer.h>
#include <kernel/cpu/tss.h>
#include <assert.h>
#include <stdint.h>
#include <sys/proc.h>

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Data Structures
struct	cpu_t
	CPU structure. More...

Macros
#define	CPU_OFFSET_SELF   0x0
	The offset of the self member in the cpu_t structure.
#define	CPU_OFFSET_SYSCALL_RSP   0x10
	The offset of the syscall_ctx_t pointer in the cpu_t structure.
#define	CPU_OFFSET_USER_RSP   0x18
	The offset of the userRsp member in the cpu_t structure.
#define	CPU_OFFSET_ID   0x8
	The offset of the id member in the cpu_t structure.
#define	CPU_MAX   UINT8_MAX
	Maximum number of CPUs supported.
#define	CPU_ID_BOOTSTRAP   0
	ID of the bootstrap CPU.
#define	CPU_ID_INVALID   UINT16_MAX
	Invalid CPU ID.
#define	CPU_STACK_CANARY   0x1234567890ABCDEFULL
	CPU stack canary value.
#define	CPU_FOR_EACH(cpu)
	Macro to iterate over all CPUs.

Typedefs
typedef struct cpu	cpu_t
typedef uint16_t	cpu_id_t
	Type used to identify a CPU.

Functions
void	cpu_init (cpu_t *cpu)
	Initializes a CPU structure.
void	cpu_stacks_overflow_check (void)
	Checks the current CPU for stack overflows.
uint64_t	cpu_halt_others (void)
	Halts all other CPUs.
uintptr_t	cpu_interrupt_stack_top (void)
	Gets the top of the interrupt stack for the current CPU.
static uint16_t	cpu_amount (void)
	Gets the number of identified CPUs.
static cpu_t *	cpu_get_by_id (cpu_id_t id)
	Gets a CPU structure by its ID.
static cpu_t *	cpu_get_next (cpu_t *current)
	Gets the next CPU in the CPU array.

Variables
cpu_t *	_cpus [CPU_MAX]
	Array of pointers to cpu_t structures for each CPU, indexed by CPU ID.
uint16_t	_cpuAmount
	The number of CPUs currently identified.

Typedef Documentation

cpu_t

typedef struct cpu cpu_t

Definition at line 12 of file cpu.h.