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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2009,2010 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_REDMEMSLOTS
#define _H_REDMEMSLOTS
#include "red_common.h"
#include <spice/qxl_dev.h>
typedef struct MemSlot {
int generation;
unsigned long virt_start_addr;
unsigned long virt_end_addr;
long address_delta;
} MemSlot;
typedef struct RedMemSlotInfo {
MemSlot **mem_slots;
uint32_t num_memslots_groups;
uint32_t num_memslots;
uint8_t mem_slot_bits;
uint8_t generation_bits;
uint8_t memslot_id_shift;
uint8_t memslot_gen_shift;
uint8_t internal_groupslot_id;
unsigned long memslot_gen_mask;
unsigned long memslot_clean_virt_mask;
} RedMemSlotInfo;
static inline int get_memslot_id(RedMemSlotInfo *info, uint64_t addr)
{
return addr >> info->memslot_id_shift;
}
static inline int get_generation(RedMemSlotInfo *info, uint64_t addr)
{
return (addr >> info->memslot_gen_shift) & info->memslot_gen_mask;
}
unsigned long get_virt_delta(RedMemSlotInfo *info, QXLPHYSICAL addr, int group_id);
int validate_virt(RedMemSlotInfo *info, unsigned long virt, int slot_id,
uint32_t add_size, uint32_t group_id);
unsigned long get_virt(RedMemSlotInfo *info, QXLPHYSICAL addr, uint32_t add_size,
int group_id, int *error);
void *validate_chunk(RedMemSlotInfo *info, QXLPHYSICAL data, uint32_t group_id,
uint32_t *data_size_out, QXLPHYSICAL *next_out, int *error);
void red_memslot_info_init(RedMemSlotInfo *info,
uint32_t num_groups, uint32_t num_slots,
uint8_t generation_bits,
uint8_t id_bits,
uint8_t internal_groupslot_id);
void red_memslot_info_add_slot(RedMemSlotInfo *info, uint32_t slot_group_id, uint32_t slot_id,
uint64_t addr_delta, unsigned long virt_start, unsigned long virt_end,
uint32_t generation);
void red_memslot_info_del_slot(RedMemSlotInfo *info, uint32_t slot_group_id, uint32_t slot_id);
void red_memslot_info_reset(RedMemSlotInfo *info);
#endif
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