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https://github.com/yuzu-emu/unicorn.git
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5c85c564b5
There could be a race condition when two processes call address_space_map concurrently and both want to use the bounce buffer. Add an in_use flag in BounceBuffer to sync it. Backports commit c2cba0ffe495b60c4cc58080281e99c7a6580d4b from qemu
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/* By Dang Hoang Vu <dang.hvu -at- gmail.com>, 2015 */
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#ifndef UC_QEMU_H
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#define UC_QEMU_H
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struct uc_struct;
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#define OPC_BUF_SIZE 640
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#include "sysemu/sysemu.h"
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#include "sysemu/cpus.h"
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#include "exec/cpu-common.h"
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#include "exec/memory.h"
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#include "qemu/thread.h"
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#include "include/qom/cpu.h"
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#include "vl.h"
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// This two struct is originally from qemu/include/exec/cpu-all.h
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// Temporarily moved here since there is circular inclusion.
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typedef struct RAMBlock {
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struct MemoryRegion *mr;
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uint8_t *host;
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ram_addr_t offset;
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ram_addr_t length;
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uint32_t flags;
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char idstr[256];
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/* Reads can take either the iothread or the ramlist lock.
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* Writes must take both locks.
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*/
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QTAILQ_ENTRY(RAMBlock) next;
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int fd;
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} RAMBlock;
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typedef struct {
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MemoryRegion *mr;
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void *buffer;
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hwaddr addr;
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hwaddr len;
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bool in_use;
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} BounceBuffer;
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typedef struct RAMList {
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/* Protected by the iothread lock. */
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unsigned long *dirty_memory[DIRTY_MEMORY_NUM];
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RAMBlock *mru_block;
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QTAILQ_HEAD(, RAMBlock) blocks;
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uint32_t version;
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} RAMList;
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#endif
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