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https://gitlab.uni-freiburg.de/opensourcevdi/spice
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2f6e2a8ef9
On LLP64 platforms (like Windows) a virtual address cannot be represented by a "unsigned long" type, so use uintptr_t which is defined as an integral type large like a pointer. "address_delta" and "addr_delta" are a difference of pointers so use same type size. Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Acked-by: Snir Sheriber <ssheribe@redhat.com>
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2009,2010 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MEMSLOT_H_
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#define MEMSLOT_H_
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#include <spice/qxl_dev.h>
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#include "red-common.h"
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typedef struct MemSlot {
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int generation;
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uintptr_t virt_start_addr;
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uintptr_t virt_end_addr;
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uintptr_t address_delta;
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} MemSlot;
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typedef struct RedMemSlotInfo {
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MemSlot **mem_slots;
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uint32_t num_memslots_groups;
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uint32_t num_memslots;
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uint8_t mem_slot_bits;
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uint8_t generation_bits;
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uint8_t memslot_id_shift;
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uint8_t memslot_gen_shift;
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uint8_t internal_groupslot_id;
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uintptr_t memslot_gen_mask;
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uintptr_t memslot_clean_virt_mask;
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} RedMemSlotInfo;
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static inline int memslot_get_id(RedMemSlotInfo *info, uint64_t addr)
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{
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return addr >> info->memslot_id_shift;
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}
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static inline int memslot_get_generation(RedMemSlotInfo *info, uint64_t addr)
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{
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return (addr >> info->memslot_gen_shift) & info->memslot_gen_mask;
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}
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int memslot_validate_virt(RedMemSlotInfo *info, uintptr_t virt, int slot_id,
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uint32_t add_size, uint32_t group_id);
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uintptr_t memslot_max_size_virt(RedMemSlotInfo *info,
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uintptr_t virt, int slot_id,
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uint32_t group_id);
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void *memslot_get_virt(RedMemSlotInfo *info, QXLPHYSICAL addr, uint32_t add_size,
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int group_id);
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void memslot_info_init(RedMemSlotInfo *info,
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uint32_t num_groups, uint32_t num_slots,
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uint8_t generation_bits,
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uint8_t id_bits,
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uint8_t internal_groupslot_id);
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void memslot_info_destroy(RedMemSlotInfo *info);
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void memslot_info_add_slot(RedMemSlotInfo *info, uint32_t slot_group_id, uint32_t slot_id,
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uintptr_t addr_delta, uintptr_t virt_start, uintptr_t virt_end,
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uint32_t generation);
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void memslot_info_del_slot(RedMemSlotInfo *info, uint32_t slot_group_id, uint32_t slot_id);
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void memslot_info_reset(RedMemSlotInfo *info);
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#endif /* MEMSLOT_H_ */
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