ia64/xen-unstable

view xen/include/public/io/ioreq.h @ 7339:ff7c5a791ed5

Backout incautious public/io header changes
author djm@kirby.fc.hp.com
date Fri Oct 21 13:58:39 2005 -0600 (2005-10-21)
parents 760f5e85c706
children fdea4a967bc7
line source
1 /*
2 * ioreq.h: I/O request definitions for device models
3 * Copyright (c) 2004, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 *
18 */
20 #ifndef _IOREQ_H_
21 #define _IOREQ_H_
23 #define IOREQ_READ 1
24 #define IOREQ_WRITE 0
26 #define STATE_INVALID 0
27 #define STATE_IOREQ_READY 1
28 #define STATE_IOREQ_INPROCESS 2
29 #define STATE_IORESP_READY 3
30 #define STATE_IORESP_HOOK 4
32 #define IOREQ_TYPE_PIO 0 /* pio */
33 #define IOREQ_TYPE_COPY 1 /* mmio ops */
34 #define IOREQ_TYPE_AND 2
35 #define IOREQ_TYPE_OR 3
36 #define IOREQ_TYPE_XOR 4
38 /*
39 * VMExit dispatcher should cooperate with instruction decoder to
40 * prepare this structure and notify service OS and DM by sending
41 * virq
42 */
43 typedef struct {
44 uint64_t addr; /* physical address */
45 uint64_t size; /* size in bytes */
46 uint64_t count; /* for rep prefixes */
47 union {
48 uint64_t data; /* data */
49 void *pdata; /* pointer to data */
50 } u;
51 uint8_t state:4;
52 uint8_t pdata_valid:1; /* if 1, use pdata above */
53 uint8_t dir:1; /* 1=read, 0=write */
54 uint8_t df:1;
55 uint8_t type; /* I/O type */
56 } ioreq_t;
58 #define MAX_VECTOR 256
59 #define BITS_PER_BYTE 8
60 #define INTR_LEN (MAX_VECTOR/(BITS_PER_BYTE * sizeof(uint64_t)))
62 typedef struct {
63 uint64_t pic_intr[INTR_LEN];
64 uint64_t pic_mask[INTR_LEN];
65 int eport; /* Event channel port */
66 } global_iodata_t;
68 typedef struct {
69 ioreq_t vp_ioreq;
70 unsigned long vp_intr[INTR_LEN];
71 } vcpu_iodata_t;
73 typedef struct {
74 global_iodata_t sp_global;
75 vcpu_iodata_t vcpu_iodata[1];
76 } shared_iopage_t;
78 #endif /* _IOREQ_H_ */
80 /*
81 * Local variables:
82 * mode: C
83 * c-set-style: "BSD"
84 * c-basic-offset: 4
85 * tab-width: 4
86 * indent-tabs-mode: nil
87 * End:
88 */