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rcv_endpoint.h
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/*
* (c) 2017 Alexander Warg <alexander.warg@kernkonzept.com>
*
* License: see LICENSE.spdx (in this directory or the directories above)
*/
#pragma once
#include <l4/sys/utcb.h>
#include <l4/sys/types.h>
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread(l4_cap_idx_t ep, l4_cap_idx_t thread,
l4_umword_t label);
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
l4_umword_t label);
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread_u(l4_cap_idx_t ep, l4_cap_idx_t thread,
l4_umword_t label, l4_utcb_t *utcb);
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination_u(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
l4_umword_t label, l4_utcb_t *utcb);
enum L4_rcv_ep_ops
{
L4_RCV_EP_BIND_OP = 0x10,
};
/* IMPLEMENTATION -----------------------------------------------------------*/
#include <l4/sys/ipc.h>
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread_u(l4_cap_idx_t ep,
l4_cap_idx_t thread, l4_umword_t label,
l4_utcb_t *utcb)
{
l4_msg_regs_t *m = l4_utcb_mr_u(utcb);
m->mr[0] = L4_RCV_EP_BIND_OP;
m->mr[1] = label;
m->mr[2] = l4_map_obj_control(0, 0);
m->mr[3] = l4_obj_fpage(thread, 0, L4_CAP_FPAGE_RWS).raw;
return l4_ipc_call(ep, utcb, l4_msgtag(L4_PROTO_KOBJECT, 2, 1, 0),
L4_IPC_NEVER);
}
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination_u(l4_cap_idx_t ep,
l4_cap_idx_t snd_dst, l4_umword_t label,
l4_utcb_t *utcb)
{
l4_msg_regs_t *m = l4_utcb_mr_u(utcb);
m->mr[0] = L4_RCV_EP_BIND_OP;
m->mr[1] = label;
m->mr[2] = l4_map_obj_control(0, 0);
m->mr[3] = l4_obj_fpage(snd_dst, 0, L4_CAP_FPAGE_RWS).raw;
return l4_ipc_call(ep, utcb, l4_msgtag(L4_PROTO_KOBJECT, 2, 1, 0),
L4_IPC_NEVER);
}
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_thread(l4_cap_idx_t ep, l4_cap_idx_t thread,
l4_umword_t label)
{
return l4_rcv_ep_bind_thread_u(ep, thread, label, l4_utcb());
}
L4_INLINE l4_msgtag_t
l4_rcv_ep_bind_snd_destination(l4_cap_idx_t ep, l4_cap_idx_t snd_dst,
l4_umword_t label)
{
return l4_rcv_ep_bind_snd_destination_u(ep, snd_dst, label, l4_utcb());
}
l4_umword_t
unsigned long l4_umword_t
Unsigned machine word.
Definition l4int.h:40
l4_cap_idx_t
unsigned long l4_cap_idx_t
Capability selector type.
Definition types.h:336
l4_obj_fpage
l4_fpage_t l4_obj_fpage(l4_cap_idx_t obj, unsigned int order, unsigned char rights) L4_NOTHROW
Create a kernel-object flexpage.
Definition __l4_fpage.h:715
L4_CAP_FPAGE_RWS
@ L4_CAP_FPAGE_RWS
Read, interface specific 'W', and 'S' rights for capability flexpages.
Definition __l4_fpage.h:206
l4_ipc_call
l4_msgtag_t l4_ipc_call(l4_cap_idx_t object, l4_utcb_t *utcb, l4_msgtag_t tag, l4_timeout_t timeout) L4_NOTHROW
Object call (usual invocation).
Definition ipc.h:565
l4_rcv_ep_bind_thread
l4_msgtag_t l4_rcv_ep_bind_thread(l4_cap_idx_t ep, l4_cap_idx_t thread, l4_umword_t label)
Bind the IPC receive endpoint to a thread.
Definition rcv_endpoint.h:131
l4_rcv_ep_bind_snd_destination
l4_msgtag_t l4_rcv_ep_bind_snd_destination(l4_cap_idx_t ep, l4_cap_idx_t snd_dst, l4_umword_t label)
Bind the IPC receive endpoint to a send destination (a thread).
Definition rcv_endpoint.h:138
l4_map_obj_control
l4_umword_t l4_map_obj_control(l4_umword_t spot, unsigned grant) L4_NOTHROW
Create the first word for a map item that is a send item for the object space.
Definition __l4_fpage.h:749
l4_msgtag
l4_msgtag_t l4_msgtag(long label, unsigned words, unsigned items, unsigned flags) L4_NOTHROW
Create a message tag from the specified values.
Definition types.h:405
L4_PROTO_KOBJECT
@ L4_PROTO_KOBJECT
Protocol for messages to a generic kobject.
Definition types.h:52
L4_IPC_NEVER
#define L4_IPC_NEVER
never timeout
Definition __timeout.h:76
l4_utcb_t
struct l4_utcb_t l4_utcb_t
Opaque type for the UTCB.
Definition utcb.h:56
l4_utcb
l4_utcb_t * l4_utcb(void) L4_NOTHROW L4_PURE
Get the UTCB address.
Definition utcb.h:346
L4_INLINE
#define L4_INLINE
L4 Inline function attribute.
Definition compiler.h:51
ipc.h
Common IPC interface.
types.h
Common L4 ABI Data Types.
utcb.h
UTCB definitions.
L4_rcv_ep_ops
L4_rcv_ep_ops
Receive endpoint operations.
Definition rcv_endpoint.h:94
L4_RCV_EP_BIND_OP
@ L4_RCV_EP_BIND_OP
Bind to thread or thread group.
Definition rcv_endpoint.h:95
l4_msgtag_t
Message tag data structure.
Definition types.h:154
l4_fpage_t::raw
l4_umword_t raw
Raw value.
Definition __l4_fpage.h:78
l4_msg_regs_t
Encapsulation of the message-register block in the UTCB.
Definition utcb.h:68
l4_msg_regs_t::mr
l4_umword_t mr[L4_UTCB_GENERIC_DATA_SIZE]
Message registers.
Definition utcb.h:69