78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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/******************************************************************************
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* tpmif.h
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*
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* TPM I/O interface for Xen guest OSes.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright (c) 2005, IBM Corporation
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*
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* Author: Stefan Berger, stefanb@us.ibm.com
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* Grant table support: Mahadevan Gomathisankaran
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*
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* This code has been derived from tools/libxc/xen/io/netif.h
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*
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* Copyright (c) 2003-2004, Keir Fraser
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*/
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#ifndef __XEN_PUBLIC_IO_TPMIF_H__
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#define __XEN_PUBLIC_IO_TPMIF_H__
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#include "../grant_table.h"
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struct tpmif_tx_request {
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unsigned long addr; /* Machine address of packet. */
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grant_ref_t ref; /* grant table access reference */
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uint16_t unused;
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uint16_t size; /* Packet size in bytes. */
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};
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typedef struct tpmif_tx_request tpmif_tx_request_t;
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/*
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* The TPMIF_TX_RING_SIZE defines the number of pages the
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* front-end and backend can exchange (= size of array).
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*/
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typedef uint32_t TPMIF_RING_IDX;
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#define TPMIF_TX_RING_SIZE 1
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/* This structure must fit in a memory page. */
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struct tpmif_ring {
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struct tpmif_tx_request req;
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};
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typedef struct tpmif_ring tpmif_ring_t;
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struct tpmif_tx_interface {
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struct tpmif_ring ring[TPMIF_TX_RING_SIZE];
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};
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typedef struct tpmif_tx_interface tpmif_tx_interface_t;
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#endif
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/*
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* Local variables:
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* mode: C
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* c-set-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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