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Annotation of Gnu-Mach/xen/public/io/tpmif.h, revision 1.1.1.1

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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