9db221ae73
This patch create a synthetic file system with mount tag
v_synth when -virtfs_synth command line option is specified
in qemu. The synthetic file system can be mounted in guest
using 9p using the below command line
mount -t 9p -oversion=9p2000.L,trans=virtio v_synth <mountpint>
Synthetic file system enabled different qemu subsystem to register
callbacks for read and write events from guest. The subsystem
can create directories and files in the synthetic file system as show
in ex below
qemu_v9fs_synth_mkdir(NULL, 0777, "test2", &node);
qemu_v9fs_synth_add_file(node, 0777, "testfile",
my_test_read, NULL, NULL);
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/*
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* Virtio 9p
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*
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* Copyright IBM, Corp. 2010
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*
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* Authors:
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* Gautham R Shenoy <ego@in.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_FSDEV_H
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#define QEMU_FSDEV_H
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#include "qemu-option.h"
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#include "file-op-9p.h"
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/*
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* A table to store the various file systems and their callback operations.
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* -----------------
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* fstype | ops
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* -----------------
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* local | local_ops
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* . |
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* . |
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* . |
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* . |
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* -----------------
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* etc
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*/
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typedef struct FsDriverTable {
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const char *name;
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FileOperations *ops;
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} FsDriverTable;
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/*
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* Structure to store the various fsdev's passed through command line.
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*/
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typedef struct FsDriverEntry {
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char *fsdev_id;
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char *path;
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int export_flags;
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FileOperations *ops;
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} FsDriverEntry;
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typedef struct FsDriverListEntry {
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FsDriverEntry fse;
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QTAILQ_ENTRY(FsDriverListEntry) next;
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} FsDriverListEntry;
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int qemu_fsdev_add(QemuOpts *opts);
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FsDriverEntry *get_fsdev_fsentry(char *id);
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extern FileOperations local_ops;
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extern FileOperations handle_ops;
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extern FileOperations synth_ops;
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#endif
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