UTCB definitions for x86. More...

#include <l4/sys/types.h>

Include dependency graph for utcb.h:

Data Structures
struct	l4_exc_regs_t
	UTCB structure for exceptions. More...

Macros
#define	L4_UTCB_EXCEPTION_REGS_SIZE 19
	Number if message registers used for exception IPC.
#define	L4_UTCB_GENERIC_DATA_SIZE 63
	Total number of message register (MRs) available.
#define	L4_UTCB_GENERIC_BUFFERS_SIZE 58
	Total number of buffer registers (BRs) available.
#define	L4_UTCB_MSG_REGS_OFFSET 0
	Offset of MR[0] relative to the UTCB pointer.
#define	L4_UTCB_BUF_REGS_OFFSET (64 * sizeof(l4_umword_t))
	Offset of BR[0] relative to the UTCB pointer.
#define	L4_UTCB_THREAD_REGS_OFFSET (123 * sizeof(l4_umword_t))
	Offset of TCR[0] relative to the UTCB pointer.
#define	L4_UTCB_INHERIT_FPU (1UL << 24)
	BDR flag to accept reception of FPU state.
#define	L4_UTCB_OFFSET 512
	Offset of two consecutive UTCBs.

Functions
l4_umword_t	l4_utcb_exc_pc (l4_exc_regs_t const *u) L4_NOTHROW
	Access function to get the program counter of the exception state.
void	l4_utcb_exc_pc_set (l4_exc_regs_t *u, l4_addr_t pc) L4_NOTHROW
	Set the program counter register in the exception state.
l4_umword_t	l4_utcb_exc_typeval (l4_exc_regs_t const *u) L4_NOTHROW
	Get the value out of an exception UTCB that describes the type of exception.
int	l4_utcb_exc_is_pf (l4_exc_regs_t const *u) L4_NOTHROW
	Check whether an exception IPC is a page fault.
l4_addr_t	l4_utcb_exc_pfa (l4_exc_regs_t const *u) L4_NOTHROW
	Function to get the L4 style page fault address out of an exception.
int	l4_utcb_exc_is_ex_regs_exception (l4_exc_regs_t const *u) L4_NOTHROW
	Check whether an exception IPC was triggered via l4_thread_ex_regs().

Detailed Description

UTCB definitions for x86.

Definition in file utcb.h.

Data Structures