128 lines
4.3 KiB
C
128 lines
4.3 KiB
C
/*
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* ioreq.h: I/O request definitions for device models
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* Copyright (c) 2004, Intel Corporation.
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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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#ifndef _IOREQ_H_
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#define _IOREQ_H_
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#define IOREQ_READ 1
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#define IOREQ_WRITE 0
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#define STATE_IOREQ_NONE 0
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#define STATE_IOREQ_READY 1
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#define STATE_IOREQ_INPROCESS 2
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#define STATE_IORESP_READY 3
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#define IOREQ_TYPE_PIO 0 /* pio */
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#define IOREQ_TYPE_COPY 1 /* mmio ops */
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#define IOREQ_TYPE_TIMEOFFSET 7
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#define IOREQ_TYPE_INVALIDATE 8 /* mapcache */
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/*
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* VMExit dispatcher should cooperate with instruction decoder to
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* prepare this structure and notify service OS and DM by sending
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* virq
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*/
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struct ioreq {
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uint64_t addr; /* physical address */
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uint64_t size; /* size in bytes */
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uint64_t count; /* for rep prefixes */
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uint64_t data; /* data (or paddr of data) */
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uint8_t state:4;
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uint8_t data_is_ptr:1; /* if 1, data above is the guest paddr
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* of the real data to use. */
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uint8_t dir:1; /* 1=read, 0=write */
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uint8_t df:1;
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uint8_t pad:1;
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uint8_t type; /* I/O type */
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uint8_t _pad0[6];
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uint64_t io_count; /* How many IO done on a vcpu */
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};
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typedef struct ioreq ioreq_t;
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struct vcpu_iodata {
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struct ioreq vp_ioreq;
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/* Event channel port, used for notifications to/from the device model. */
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uint32_t vp_eport;
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uint32_t _pad0;
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};
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typedef struct vcpu_iodata vcpu_iodata_t;
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struct shared_iopage {
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struct vcpu_iodata vcpu_iodata[1];
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};
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typedef struct shared_iopage shared_iopage_t;
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struct buf_ioreq {
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uint8_t type; /* I/O type */
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uint8_t pad:1;
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uint8_t dir:1; /* 1=read, 0=write */
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uint8_t size:2; /* 0=>1, 1=>2, 2=>4, 3=>8. If 8, use two buf_ioreqs */
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uint32_t addr:20;/* physical address */
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uint32_t data; /* data */
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};
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typedef struct buf_ioreq buf_ioreq_t;
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#define IOREQ_BUFFER_SLOT_NUM 511 /* 8 bytes each, plus 2 4-byte indexes */
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struct buffered_iopage {
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unsigned int read_pointer;
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unsigned int write_pointer;
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buf_ioreq_t buf_ioreq[IOREQ_BUFFER_SLOT_NUM];
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}; /* NB. Size of this structure must be no greater than one page. */
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typedef struct buffered_iopage buffered_iopage_t;
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#if defined(__ia64__)
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struct pio_buffer {
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uint32_t page_offset;
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uint32_t pointer;
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uint32_t data_end;
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uint32_t buf_size;
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void *opaque;
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};
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#define PIO_BUFFER_IDE_PRIMARY 0 /* I/O port = 0x1F0 */
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#define PIO_BUFFER_IDE_SECONDARY 1 /* I/O port = 0x170 */
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#define PIO_BUFFER_ENTRY_NUM 2
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struct buffered_piopage {
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struct pio_buffer pio[PIO_BUFFER_ENTRY_NUM];
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uint8_t buffer[1];
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};
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#endif /* defined(__ia64__) */
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#define ACPI_PM1A_EVT_BLK_ADDRESS 0x0000000000001f40
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#define ACPI_PM1A_CNT_BLK_ADDRESS (ACPI_PM1A_EVT_BLK_ADDRESS + 0x04)
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#define ACPI_PM_TMR_BLK_ADDRESS (ACPI_PM1A_EVT_BLK_ADDRESS + 0x08)
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#define ACPI_GPE0_BLK_ADDRESS (ACPI_PM_TMR_BLK_ADDRESS + 0x20)
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#define ACPI_GPE0_BLK_LEN 0x08
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#endif /* _IOREQ_H_ */
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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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