xen.h File Reference

Xen interface. More...

#include <stdint.h>
#include <ipxe/bitops.h>
#include <xen/xen.h>
#include <xen/event_channel.h>
#include <bits/xen.h>

Go to the source code of this file.

Data Structures
struct	xen_grant
	A Xen grant table. More...
struct	xen_store
	A XenStore. More...
struct	xen_hypervisor
	A Xen hypervisor. More...

Macros
#define	__XEN_INTERFACE_VERSION__   0x00040400
#define	xen_mb()
#define	xen_rmb()
#define	xen_wmb()
#define	EXEN(xenrc)
	Convert a Xen status code to an iPXE status code.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
static	__attribute__ ((always_inline)) int xenevent_pending(struct xen_hypervisor *xen
	Test and clear pending event.

Variables
static evtchn_port_t	port

Detailed Description

Xen interface.

Definition in file xen.h.

Macro Definition Documentation

__XEN_INTERFACE_VERSION__

#define __XEN_INTERFACE_VERSION__   0x00040400

Definition at line 14 of file xen.h.

xen_mb

#define xen_mb

(

)

Value:

mb()

Definition at line 22 of file xen.h.

xen_rmb

#define xen_rmb

(

)

Value:

rmb()

Definition at line 23 of file xen.h.

xen_wmb

#define xen_wmb

(

)

Value:

wmb()

Definition at line 24 of file xen.h.

EXEN

#define EXEN

(

xenrc

)

Value:

EPLATFORM ( EINFO_EPLATFORM, -(xenrc) )

Convert a Xen status code to an iPXE status code.

Parameters

xenrc

Xen status code (negated)

Return values

rc	iPXE status code (before negation)

Xen status codes are defined in the file include/xen/errno.h in the Xen repository. They happen to match the Linux error codes, some of which can be found in our include/ipxe/errno/linux.h.

Definition at line 87 of file xen.h.

Referenced by hvm_ioremap(), hvm_iounmap(), hvm_map_hypercall(), hvm_map_xenstore(), netfront_create_event(), netfront_send_event(), xengrant_init(), and xenstore_request().

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

__attribute__()

__attribute__ ( (always_inline) )

inlinestatic

Test and clear pending event.

Parameters

xen	Xen hypervisor
port	Event channel port

Return values

pending

Event was pending

Variable Documentation

port

evtchn_port_t port

Initial value:

{
 
        return test_and_clear_bit ( port, xen->shared->evtchn_pending )

Definition at line 70 of file xen.h.