#include <IndustryStandard/Xen/grant_table.h>

Functions
VOID	XenGrantTableInit (IN XENBUS_DEVICE *Dev)

VOID	XenGrantTableDeinit (IN XENBUS_DEVICE *Dev)

EFI_STATUS EFIAPI	XenBusGrantAccess (IN XENBUS_PROTOCOL This, IN domid_t DomainId, IN UINTN Frame, IN BOOLEAN ReadOnly, OUT grant_ref_t RefPtr)

EFI_STATUS EFIAPI	XenBusGrantEndAccess (IN XENBUS_PROTOCOL *This, IN grant_ref_t Ref)

Detailed Description

Grant Table function declaration.

Grant Table are used to grant access to certain page of the current VM to an other VM.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file GrantTable.h.

Function Documentation

EFI_STATUS EFIAPI XenBusGrantAccess	(	IN XENBUS_PROTOCOL *	This,
		IN domid_t	DomainId,
		IN UINTN	Frame,
		IN BOOLEAN	ReadOnly,
		OUT grant_ref_t *	RefPtr
	)

Grant access to the page Frame to the domain DomainId.

Parameters

This	A pointer to XENBUS_PROTOCOL instance.
DomainId	ID of the domain to grant access to.
Frame	Frame Number of the page to grant access to.
ReadOnly	Provide read-only or read-write access.
RefPtr	Reference number of the grant will be written to this pointer.

Definition at line 191 of file GrantTable.c.

EFI_STATUS EFIAPI XenBusGrantEndAccess	(	IN XENBUS_PROTOCOL *	This,
		IN grant_ref_t	Ref
	)

End access to grant Ref, previously return by XenBusGrantAccess.

Parameters

This	A pointer to XENBUS_PROTOCOL instance.
Ref	Reference numeber of a grant previously returned by XenBusGrantAccess.

Definition at line 205 of file GrantTable.c.

VOID XenGrantTableDeinit ( IN XENBUS_DEVICE * Dev )

De-initialize the Grant Table.

VOID XenGrantTableInit ( IN XENBUS_DEVICE * Dev )

Initialize the Grant Table at the address MmioAddr.

Parameters

Dev	A pointer to XENBUS_DEVICE.
MmioAddr	An address where the grant table can be mapped into the guest.

Definition at line 123 of file GrantTable.c.