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Annotation of Gnu-Mach/xen/public/io/tpmif.h, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2:  * tpmif.h
        !             3:  *
        !             4:  * TPM I/O interface for Xen guest OSes.
        !             5:  *
        !             6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
        !             7:  * of this software and associated documentation files (the "Software"), to
        !             8:  * deal in the Software without restriction, including without limitation the
        !             9:  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
        !            10:  * sell copies of the Software, and to permit persons to whom the Software is
        !            11:  * furnished to do so, subject to the following conditions:
        !            12:  *
        !            13:  * The above copyright notice and this permission notice shall be included in
        !            14:  * all copies or substantial portions of the Software.
        !            15:  *
        !            16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        !            17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        !            19:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        !            20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
        !            21:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
        !            22:  * DEALINGS IN THE SOFTWARE.
        !            23:  *
        !            24:  * Copyright (c) 2005, IBM Corporation
        !            25:  *
        !            26:  * Author: Stefan Berger, [email protected]
        !            27:  * Grant table support: Mahadevan Gomathisankaran
        !            28:  *
        !            29:  * This code has been derived from tools/libxc/xen/io/netif.h
        !            30:  *
        !            31:  * Copyright (c) 2003-2004, Keir Fraser
        !            32:  */
        !            33: 
        !            34: #ifndef __XEN_PUBLIC_IO_TPMIF_H__
        !            35: #define __XEN_PUBLIC_IO_TPMIF_H__
        !            36: 
        !            37: #include "../grant_table.h"
        !            38: 
        !            39: struct tpmif_tx_request {
        !            40:     unsigned long addr;   /* Machine address of packet.   */
        !            41:     grant_ref_t ref;      /* grant table access reference */
        !            42:     uint16_t unused;
        !            43:     uint16_t size;        /* Packet size in bytes.        */
        !            44: };
        !            45: typedef struct tpmif_tx_request tpmif_tx_request_t;
        !            46: 
        !            47: /*
        !            48:  * The TPMIF_TX_RING_SIZE defines the number of pages the
        !            49:  * front-end and backend can exchange (= size of array).
        !            50:  */
        !            51: typedef uint32_t TPMIF_RING_IDX;
        !            52: 
        !            53: #define TPMIF_TX_RING_SIZE 1
        !            54: 
        !            55: /* This structure must fit in a memory page. */
        !            56: 
        !            57: struct tpmif_ring {
        !            58:     struct tpmif_tx_request req;
        !            59: };
        !            60: typedef struct tpmif_ring tpmif_ring_t;
        !            61: 
        !            62: struct tpmif_tx_interface {
        !            63:     struct tpmif_ring ring[TPMIF_TX_RING_SIZE];
        !            64: };
        !            65: typedef struct tpmif_tx_interface tpmif_tx_interface_t;
        !            66: 
        !            67: #endif
        !            68: 
        !            69: /*
        !            70:  * Local variables:
        !            71:  * mode: C
        !            72:  * c-set-style: "BSD"
        !            73:  * c-basic-offset: 4
        !            74:  * tab-width: 4
        !            75:  * indent-tabs-mode: nil
        !            76:  * End:
        !            77:  */

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