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1230 lines
34 KiB
C
1230 lines
34 KiB
C
/*
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* QTest testcase for the vhost-user
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*
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* Copyright (c) 2014 Virtual Open Systems Sarl.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "libqtest-single.h"
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#include "qapi/error.h"
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#include "qapi/qmp/qdict.h"
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#include "qemu/config-file.h"
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#include "qemu/option.h"
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#include "qemu/range.h"
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#include "qemu/sockets.h"
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#include "chardev/char-fe.h"
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#include "qemu/memfd.h"
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#include "qemu/module.h"
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#include "sysemu/sysemu.h"
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#include "libqos/libqos.h"
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#include "libqos/pci-pc.h"
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#include "libqos/virtio-pci.h"
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#include "libqos/malloc-pc.h"
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#include "libqos/qgraph_internal.h"
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#include "hw/virtio/virtio-net.h"
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#include "standard-headers/linux/vhost_types.h"
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#include "standard-headers/linux/virtio_ids.h"
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#include "standard-headers/linux/virtio_net.h"
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#include "standard-headers/linux/virtio_gpio.h"
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#include "standard-headers/linux/virtio_scmi.h"
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#ifdef CONFIG_LINUX
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#include <sys/vfs.h>
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#endif
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#define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM," \
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"mem-path=%s,share=on -numa node,memdev=mem"
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#define QEMU_CMD_MEMFD " -m %d -object memory-backend-memfd,id=mem,size=%dM," \
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" -numa node,memdev=mem"
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#define QEMU_CMD_SHM " -m %d -object memory-backend-shm,id=mem,size=%dM," \
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" -numa node,memdev=mem"
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#define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s"
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#define QEMU_CMD_NETDEV " -netdev vhost-user,id=hs0,chardev=%s,vhostforce=on"
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#define HUGETLBFS_MAGIC 0x958458f6
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/*********** FROM hw/virtio/vhost-user.c *************************************/
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#define VHOST_MEMORY_MAX_NREGIONS 8
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#define VHOST_MAX_VIRTQUEUES 0x100
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#define VHOST_USER_F_PROTOCOL_FEATURES 30
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#define VIRTIO_F_VERSION_1 32
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#define VHOST_USER_PROTOCOL_F_MQ 0
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#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
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#define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN 6
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#define VHOST_USER_PROTOCOL_F_CONFIG 9
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#define VHOST_LOG_PAGE 0x1000
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typedef enum VhostUserRequest {
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VHOST_USER_NONE = 0,
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VHOST_USER_GET_FEATURES = 1,
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VHOST_USER_SET_FEATURES = 2,
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VHOST_USER_SET_OWNER = 3,
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VHOST_USER_RESET_OWNER = 4,
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VHOST_USER_SET_MEM_TABLE = 5,
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VHOST_USER_SET_LOG_BASE = 6,
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VHOST_USER_SET_LOG_FD = 7,
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VHOST_USER_SET_VRING_NUM = 8,
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VHOST_USER_SET_VRING_ADDR = 9,
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VHOST_USER_SET_VRING_BASE = 10,
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VHOST_USER_GET_VRING_BASE = 11,
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VHOST_USER_SET_VRING_KICK = 12,
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VHOST_USER_SET_VRING_CALL = 13,
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VHOST_USER_SET_VRING_ERR = 14,
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VHOST_USER_GET_PROTOCOL_FEATURES = 15,
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VHOST_USER_SET_PROTOCOL_FEATURES = 16,
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VHOST_USER_GET_QUEUE_NUM = 17,
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VHOST_USER_SET_VRING_ENABLE = 18,
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VHOST_USER_GET_CONFIG = 24,
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VHOST_USER_SET_CONFIG = 25,
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VHOST_USER_MAX
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} VhostUserRequest;
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typedef struct VhostUserMemoryRegion {
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uint64_t guest_phys_addr;
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uint64_t memory_size;
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uint64_t userspace_addr;
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uint64_t mmap_offset;
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} VhostUserMemoryRegion;
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typedef struct VhostUserMemory {
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uint32_t nregions;
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uint32_t padding;
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VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
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} VhostUserMemory;
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typedef struct VhostUserLog {
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uint64_t mmap_size;
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uint64_t mmap_offset;
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} VhostUserLog;
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typedef struct VhostUserMsg {
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VhostUserRequest request;
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#define VHOST_USER_VERSION_MASK (0x3)
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#define VHOST_USER_REPLY_MASK (0x1<<2)
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uint32_t flags;
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uint32_t size; /* the following payload size */
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union {
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#define VHOST_USER_VRING_IDX_MASK (0xff)
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#define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
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uint64_t u64;
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struct vhost_vring_state state;
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struct vhost_vring_addr addr;
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VhostUserMemory memory;
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VhostUserLog log;
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} payload;
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} QEMU_PACKED VhostUserMsg;
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static VhostUserMsg m __attribute__ ((unused));
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#define VHOST_USER_HDR_SIZE (sizeof(m.request) \
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+ sizeof(m.flags) \
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+ sizeof(m.size))
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#define VHOST_USER_PAYLOAD_SIZE (sizeof(m) - VHOST_USER_HDR_SIZE)
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/* The version of the protocol we support */
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#define VHOST_USER_VERSION (0x1)
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/*****************************************************************************/
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enum {
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TEST_FLAGS_OK,
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TEST_FLAGS_DISCONNECT,
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TEST_FLAGS_BAD,
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TEST_FLAGS_END,
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};
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enum {
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VHOST_USER_NET,
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VHOST_USER_GPIO,
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VHOST_USER_SCMI,
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};
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typedef struct TestServer {
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gchar *socket_path;
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gchar *mig_path;
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gchar *chr_name;
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gchar *tmpfs;
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CharBackend chr;
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int fds_num;
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int fds[VHOST_MEMORY_MAX_NREGIONS];
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VhostUserMemory memory;
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GMainContext *context;
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GMainLoop *loop;
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GThread *thread;
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GMutex data_mutex;
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GCond data_cond;
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int log_fd;
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uint64_t rings;
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bool test_fail;
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int test_flags;
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int queues;
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struct vhost_user_ops *vu_ops;
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} TestServer;
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struct vhost_user_ops {
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/* Device types. */
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int type;
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void (*append_opts)(TestServer *s, GString *cmd_line,
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const char *chr_opts);
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/* VHOST-USER commands. */
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uint64_t (*get_features)(TestServer *s);
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void (*set_features)(TestServer *s, CharBackend *chr,
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VhostUserMsg *msg);
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void (*get_protocol_features)(TestServer *s,
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CharBackend *chr, VhostUserMsg *msg);
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};
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static const char *init_hugepagefs(void);
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static TestServer *test_server_new(const gchar *name,
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struct vhost_user_ops *ops);
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static void test_server_free(TestServer *server);
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static void test_server_listen(TestServer *server);
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enum test_memfd {
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TEST_MEMFD_AUTO,
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TEST_MEMFD_YES,
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TEST_MEMFD_NO,
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TEST_MEMFD_SHM,
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};
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static void append_vhost_net_opts(TestServer *s, GString *cmd_line,
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const char *chr_opts)
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{
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g_string_append_printf(cmd_line, QEMU_CMD_CHR QEMU_CMD_NETDEV,
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s->chr_name, s->socket_path,
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chr_opts, s->chr_name);
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}
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/*
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* For GPIO there are no other magic devices we need to add (like
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* block or netdev) so all we need to worry about is the vhost-user
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* chardev socket.
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*/
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static void append_vhost_gpio_opts(TestServer *s, GString *cmd_line,
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const char *chr_opts)
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{
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g_string_append_printf(cmd_line, QEMU_CMD_CHR,
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s->chr_name, s->socket_path,
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chr_opts);
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}
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static void append_mem_opts(TestServer *server, GString *cmd_line,
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int size, enum test_memfd memfd)
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{
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if (memfd == TEST_MEMFD_AUTO) {
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memfd = qemu_memfd_check(MFD_ALLOW_SEALING) ? TEST_MEMFD_YES
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: TEST_MEMFD_NO;
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}
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if (memfd == TEST_MEMFD_YES) {
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g_string_append_printf(cmd_line, QEMU_CMD_MEMFD, size, size);
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} else if (memfd == TEST_MEMFD_SHM) {
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g_string_append_printf(cmd_line, QEMU_CMD_SHM, size, size);
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} else {
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const char *root = init_hugepagefs() ? : server->tmpfs;
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g_string_append_printf(cmd_line, QEMU_CMD_MEM, size, size, root);
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}
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}
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static bool wait_for_fds(TestServer *s)
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{
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gint64 end_time;
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bool got_region;
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int i;
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g_mutex_lock(&s->data_mutex);
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end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
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while (!s->fds_num) {
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if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
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/* timeout has passed */
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g_assert(s->fds_num);
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break;
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}
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}
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/* check for sanity */
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g_assert_cmpint(s->fds_num, >, 0);
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g_assert_cmpint(s->fds_num, ==, s->memory.nregions);
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g_mutex_unlock(&s->data_mutex);
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got_region = false;
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for (i = 0; i < s->memory.nregions; ++i) {
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VhostUserMemoryRegion *reg = &s->memory.regions[i];
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if (reg->guest_phys_addr == 0) {
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got_region = true;
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break;
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}
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}
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if (!got_region) {
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g_test_skip("No memory at address 0x0");
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}
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return got_region;
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}
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static void read_guest_mem_server(QTestState *qts, TestServer *s)
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{
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uint8_t *guest_mem;
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int i, j;
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size_t size;
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g_mutex_lock(&s->data_mutex);
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/* iterate all regions */
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for (i = 0; i < s->fds_num; i++) {
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/* We'll check only the region starting at 0x0 */
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if (s->memory.regions[i].guest_phys_addr != 0x0) {
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continue;
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}
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g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024);
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size = s->memory.regions[i].memory_size +
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s->memory.regions[i].mmap_offset;
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guest_mem = mmap(0, size, PROT_READ | PROT_WRITE,
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MAP_SHARED, s->fds[i], 0);
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g_assert(guest_mem != MAP_FAILED);
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guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem));
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for (j = 0; j < 1024; j++) {
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uint32_t a = qtest_readb(qts, s->memory.regions[i].guest_phys_addr + j);
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uint32_t b = guest_mem[j];
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g_assert_cmpint(a, ==, b);
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}
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munmap(guest_mem, s->memory.regions[i].memory_size);
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}
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g_mutex_unlock(&s->data_mutex);
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}
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static void *thread_function(void *data)
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{
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GMainLoop *loop = data;
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g_main_loop_run(loop);
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return NULL;
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}
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static int chr_can_read(void *opaque)
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{
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return VHOST_USER_HDR_SIZE;
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}
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static void chr_read(void *opaque, const uint8_t *buf, int size)
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{
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g_autoptr(GError) err = NULL;
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TestServer *s = opaque;
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CharBackend *chr = &s->chr;
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VhostUserMsg msg;
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uint8_t *p = (uint8_t *) &msg;
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int fd = -1;
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if (s->test_fail) {
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qemu_chr_fe_disconnect(chr);
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/* now switch to non-failure */
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s->test_fail = false;
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}
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if (size != VHOST_USER_HDR_SIZE) {
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qos_printf("%s: Wrong message size received %d\n", __func__, size);
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return;
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}
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g_mutex_lock(&s->data_mutex);
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memcpy(p, buf, VHOST_USER_HDR_SIZE);
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if (msg.size) {
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p += VHOST_USER_HDR_SIZE;
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size = qemu_chr_fe_read_all(chr, p, msg.size);
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if (size != msg.size) {
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qos_printf("%s: Wrong message size received %d != %d\n",
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__func__, size, msg.size);
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goto out;
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}
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}
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switch (msg.request) {
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case VHOST_USER_GET_FEATURES:
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/* Mandatory for tests to define get_features */
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g_assert(s->vu_ops->get_features);
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/* send back features to qemu */
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msg.flags |= VHOST_USER_REPLY_MASK;
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msg.size = sizeof(m.payload.u64);
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if (s->test_flags >= TEST_FLAGS_BAD) {
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msg.payload.u64 = 0;
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s->test_flags = TEST_FLAGS_END;
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} else {
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msg.payload.u64 = s->vu_ops->get_features(s);
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}
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qemu_chr_fe_write_all(chr, (uint8_t *) &msg,
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VHOST_USER_HDR_SIZE + msg.size);
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break;
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case VHOST_USER_SET_FEATURES:
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if (s->vu_ops->set_features) {
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s->vu_ops->set_features(s, chr, &msg);
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}
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break;
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case VHOST_USER_SET_OWNER:
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/*
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* We don't need to do anything here, the remote is just
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* letting us know it is in charge. Just log it.
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*/
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qos_printf("set_owner: start of session\n");
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break;
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case VHOST_USER_GET_PROTOCOL_FEATURES:
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if (s->vu_ops->get_protocol_features) {
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s->vu_ops->get_protocol_features(s, chr, &msg);
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}
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break;
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case VHOST_USER_GET_CONFIG:
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/*
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* Treat GET_CONFIG as a NOP and just reply and let the guest
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* consider we have updated its memory. Tests currently don't
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* require working configs.
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*/
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msg.flags |= VHOST_USER_REPLY_MASK;
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p = (uint8_t *) &msg;
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qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
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break;
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case VHOST_USER_SET_PROTOCOL_FEATURES:
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/*
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* We did set VHOST_USER_F_PROTOCOL_FEATURES so its valid for
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* the remote end to send this. There is no handshake reply so
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* just log the details for debugging.
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*/
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qos_printf("set_protocol_features: 0x%"PRIx64 "\n", msg.payload.u64);
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break;
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|
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/*
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* A real vhost-user backend would actually set the size and
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* address of the vrings but we can simply report them.
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*/
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case VHOST_USER_SET_VRING_NUM:
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qos_printf("set_vring_num: %d/%d\n",
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msg.payload.state.index, msg.payload.state.num);
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break;
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case VHOST_USER_SET_VRING_ADDR:
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qos_printf("set_vring_addr: 0x%"PRIx64"/0x%"PRIx64"/0x%"PRIx64"\n",
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msg.payload.addr.avail_user_addr,
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msg.payload.addr.desc_user_addr,
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msg.payload.addr.used_user_addr);
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break;
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|
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case VHOST_USER_GET_VRING_BASE:
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/* send back vring base to qemu */
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msg.flags |= VHOST_USER_REPLY_MASK;
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msg.size = sizeof(m.payload.state);
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msg.payload.state.num = 0;
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p = (uint8_t *) &msg;
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qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
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assert(msg.payload.state.index < s->queues * 2);
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s->rings &= ~(0x1ULL << msg.payload.state.index);
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g_cond_broadcast(&s->data_cond);
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break;
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case VHOST_USER_SET_MEM_TABLE:
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/* received the mem table */
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memcpy(&s->memory, &msg.payload.memory, sizeof(msg.payload.memory));
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s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds,
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G_N_ELEMENTS(s->fds));
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|
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/* signal the test that it can continue */
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g_cond_broadcast(&s->data_cond);
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break;
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case VHOST_USER_SET_VRING_KICK:
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case VHOST_USER_SET_VRING_CALL:
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/* consume the fd */
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if (!qemu_chr_fe_get_msgfds(chr, &fd, 1) && fd < 0) {
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qos_printf("call fd: %d, do not set non-blocking\n", fd);
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break;
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}
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/*
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* This is a non-blocking eventfd.
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* The receive function forces it to be blocking,
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* so revert it back to non-blocking.
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*/
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g_unix_set_fd_nonblocking(fd, true, &err);
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g_assert_no_error(err);
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break;
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case VHOST_USER_SET_LOG_BASE:
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if (s->log_fd != -1) {
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close(s->log_fd);
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s->log_fd = -1;
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}
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qemu_chr_fe_get_msgfds(chr, &s->log_fd, 1);
|
|
msg.flags |= VHOST_USER_REPLY_MASK;
|
|
msg.size = 0;
|
|
p = (uint8_t *) &msg;
|
|
qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE);
|
|
|
|
g_cond_broadcast(&s->data_cond);
|
|
break;
|
|
|
|
case VHOST_USER_SET_VRING_BASE:
|
|
assert(msg.payload.state.index < s->queues * 2);
|
|
s->rings |= 0x1ULL << msg.payload.state.index;
|
|
g_cond_broadcast(&s->data_cond);
|
|
break;
|
|
|
|
case VHOST_USER_GET_QUEUE_NUM:
|
|
msg.flags |= VHOST_USER_REPLY_MASK;
|
|
msg.size = sizeof(m.payload.u64);
|
|
msg.payload.u64 = s->queues;
|
|
p = (uint8_t *) &msg;
|
|
qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
|
|
break;
|
|
|
|
case VHOST_USER_SET_VRING_ENABLE:
|
|
/*
|
|
* Another case we ignore as we don't need to respond. With a
|
|
* fully functioning vhost-user we would enable/disable the
|
|
* vring monitoring.
|
|
*/
|
|
qos_printf("set_vring(%d)=%s\n", msg.payload.state.index,
|
|
msg.payload.state.num ? "enabled" : "disabled");
|
|
break;
|
|
|
|
default:
|
|
qos_printf("vhost-user: un-handled message: %d\n", msg.request);
|
|
break;
|
|
}
|
|
|
|
out:
|
|
g_mutex_unlock(&s->data_mutex);
|
|
}
|
|
|
|
static const char *init_hugepagefs(void)
|
|
{
|
|
#ifdef CONFIG_LINUX
|
|
static const char *hugepagefs;
|
|
const char *path = getenv("QTEST_HUGETLBFS_PATH");
|
|
struct statfs fs;
|
|
int ret;
|
|
|
|
if (hugepagefs) {
|
|
return hugepagefs;
|
|
}
|
|
if (!path) {
|
|
return NULL;
|
|
}
|
|
|
|
if (access(path, R_OK | W_OK | X_OK)) {
|
|
qos_printf("access on path (%s): %s", path, strerror(errno));
|
|
g_test_fail();
|
|
return NULL;
|
|
}
|
|
|
|
do {
|
|
ret = statfs(path, &fs);
|
|
} while (ret != 0 && errno == EINTR);
|
|
|
|
if (ret != 0) {
|
|
qos_printf("statfs on path (%s): %s", path, strerror(errno));
|
|
g_test_fail();
|
|
return NULL;
|
|
}
|
|
|
|
if (fs.f_type != HUGETLBFS_MAGIC) {
|
|
qos_printf("Warning: path not on HugeTLBFS: %s", path);
|
|
g_test_fail();
|
|
return NULL;
|
|
}
|
|
|
|
hugepagefs = path;
|
|
return hugepagefs;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
static TestServer *test_server_new(const gchar *name,
|
|
struct vhost_user_ops *ops)
|
|
{
|
|
TestServer *server = g_new0(TestServer, 1);
|
|
g_autofree const char *tmpfs = NULL;
|
|
GError *err = NULL;
|
|
|
|
server->context = g_main_context_new();
|
|
server->loop = g_main_loop_new(server->context, FALSE);
|
|
|
|
/* run the main loop thread so the chardev may operate */
|
|
server->thread = g_thread_new(NULL, thread_function, server->loop);
|
|
|
|
tmpfs = g_dir_make_tmp("vhost-test-XXXXXX", &err);
|
|
if (!tmpfs) {
|
|
g_test_message("Can't create temporary directory in %s: %s",
|
|
g_get_tmp_dir(), err->message);
|
|
g_error_free(err);
|
|
}
|
|
g_assert(tmpfs);
|
|
|
|
server->tmpfs = g_strdup(tmpfs);
|
|
server->socket_path = g_strdup_printf("%s/%s.sock", tmpfs, name);
|
|
server->mig_path = g_strdup_printf("%s/%s.mig", tmpfs, name);
|
|
server->chr_name = g_strdup_printf("chr-%s", name);
|
|
|
|
g_mutex_init(&server->data_mutex);
|
|
g_cond_init(&server->data_cond);
|
|
|
|
server->log_fd = -1;
|
|
server->queues = 1;
|
|
server->vu_ops = ops;
|
|
|
|
return server;
|
|
}
|
|
|
|
static void chr_event(void *opaque, QEMUChrEvent event)
|
|
{
|
|
TestServer *s = opaque;
|
|
|
|
if (s->test_flags == TEST_FLAGS_END &&
|
|
event == CHR_EVENT_CLOSED) {
|
|
s->test_flags = TEST_FLAGS_OK;
|
|
}
|
|
}
|
|
|
|
static void test_server_create_chr(TestServer *server, const gchar *opt)
|
|
{
|
|
g_autofree gchar *chr_path = g_strdup_printf("unix:%s%s",
|
|
server->socket_path, opt);
|
|
Chardev *chr;
|
|
|
|
chr = qemu_chr_new(server->chr_name, chr_path, server->context);
|
|
g_assert(chr);
|
|
|
|
qemu_chr_fe_init(&server->chr, chr, &error_abort);
|
|
qemu_chr_fe_set_handlers(&server->chr, chr_can_read, chr_read,
|
|
chr_event, NULL, server, server->context, true);
|
|
}
|
|
|
|
static void test_server_listen(TestServer *server)
|
|
{
|
|
test_server_create_chr(server, ",server=on,wait=off");
|
|
}
|
|
|
|
static void test_server_free(TestServer *server)
|
|
{
|
|
int i, ret;
|
|
|
|
/* finish the helper thread and dispatch pending sources */
|
|
g_main_loop_quit(server->loop);
|
|
g_thread_join(server->thread);
|
|
while (g_main_context_pending(NULL)) {
|
|
g_main_context_iteration(NULL, TRUE);
|
|
}
|
|
|
|
unlink(server->socket_path);
|
|
g_free(server->socket_path);
|
|
|
|
unlink(server->mig_path);
|
|
g_free(server->mig_path);
|
|
|
|
ret = rmdir(server->tmpfs);
|
|
if (ret != 0) {
|
|
g_test_message("unable to rmdir: path (%s): %s",
|
|
server->tmpfs, strerror(errno));
|
|
}
|
|
g_free(server->tmpfs);
|
|
|
|
qemu_chr_fe_deinit(&server->chr, true);
|
|
|
|
for (i = 0; i < server->fds_num; i++) {
|
|
close(server->fds[i]);
|
|
}
|
|
|
|
if (server->log_fd != -1) {
|
|
close(server->log_fd);
|
|
}
|
|
|
|
g_free(server->chr_name);
|
|
|
|
g_main_loop_unref(server->loop);
|
|
g_main_context_unref(server->context);
|
|
g_cond_clear(&server->data_cond);
|
|
g_mutex_clear(&server->data_mutex);
|
|
g_free(server);
|
|
}
|
|
|
|
static void wait_for_log_fd(TestServer *s)
|
|
{
|
|
gint64 end_time;
|
|
|
|
g_mutex_lock(&s->data_mutex);
|
|
end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
|
|
while (s->log_fd == -1) {
|
|
if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
|
|
/* timeout has passed */
|
|
g_assert(s->log_fd != -1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_mutex_unlock(&s->data_mutex);
|
|
}
|
|
|
|
static void write_guest_mem(TestServer *s, uint32_t seed)
|
|
{
|
|
uint32_t *guest_mem;
|
|
int i, j;
|
|
size_t size;
|
|
|
|
/* iterate all regions */
|
|
for (i = 0; i < s->fds_num; i++) {
|
|
|
|
/* We'll write only the region statring at 0x0 */
|
|
if (s->memory.regions[i].guest_phys_addr != 0x0) {
|
|
continue;
|
|
}
|
|
|
|
g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024);
|
|
|
|
size = s->memory.regions[i].memory_size +
|
|
s->memory.regions[i].mmap_offset;
|
|
|
|
guest_mem = mmap(0, size, PROT_READ | PROT_WRITE,
|
|
MAP_SHARED, s->fds[i], 0);
|
|
|
|
g_assert(guest_mem != MAP_FAILED);
|
|
guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem));
|
|
|
|
for (j = 0; j < 256; j++) {
|
|
guest_mem[j] = seed + j;
|
|
}
|
|
|
|
munmap(guest_mem, s->memory.regions[i].memory_size);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static guint64 get_log_size(TestServer *s)
|
|
{
|
|
guint64 log_size = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < s->memory.nregions; ++i) {
|
|
VhostUserMemoryRegion *reg = &s->memory.regions[i];
|
|
guint64 last = range_get_last(reg->guest_phys_addr,
|
|
reg->memory_size);
|
|
log_size = MAX(log_size, last / (8 * VHOST_LOG_PAGE) + 1);
|
|
}
|
|
|
|
return log_size;
|
|
}
|
|
|
|
typedef struct TestMigrateSource {
|
|
GSource source;
|
|
TestServer *src;
|
|
TestServer *dest;
|
|
} TestMigrateSource;
|
|
|
|
static gboolean
|
|
test_migrate_source_check(GSource *source)
|
|
{
|
|
TestMigrateSource *t = (TestMigrateSource *)source;
|
|
gboolean overlap = t->src->rings && t->dest->rings;
|
|
|
|
g_assert(!overlap);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
GSourceFuncs test_migrate_source_funcs = {
|
|
.check = test_migrate_source_check,
|
|
};
|
|
|
|
static void vhost_user_test_cleanup(void *s)
|
|
{
|
|
TestServer *server = s;
|
|
|
|
qos_invalidate_command_line();
|
|
test_server_free(server);
|
|
}
|
|
|
|
static void *vhost_user_test_setup(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *server = test_server_new("vhost-user-test", arg);
|
|
test_server_listen(server);
|
|
|
|
append_mem_opts(server, cmd_line, 256, TEST_MEMFD_AUTO);
|
|
server->vu_ops->append_opts(server, cmd_line, "");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, server);
|
|
|
|
return server;
|
|
}
|
|
|
|
static void *vhost_user_test_setup_memfd(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *server = test_server_new("vhost-user-test", arg);
|
|
test_server_listen(server);
|
|
|
|
append_mem_opts(server, cmd_line, 256, TEST_MEMFD_YES);
|
|
server->vu_ops->append_opts(server, cmd_line, "");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, server);
|
|
|
|
return server;
|
|
}
|
|
|
|
static void *vhost_user_test_setup_shm(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *server = test_server_new("vhost-user-test", arg);
|
|
test_server_listen(server);
|
|
|
|
append_mem_opts(server, cmd_line, 256, TEST_MEMFD_SHM);
|
|
server->vu_ops->append_opts(server, cmd_line, "");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, server);
|
|
|
|
return server;
|
|
}
|
|
|
|
static void test_read_guest_mem(void *obj, void *arg, QGuestAllocator *alloc)
|
|
{
|
|
TestServer *server = arg;
|
|
|
|
if (!wait_for_fds(server)) {
|
|
return;
|
|
}
|
|
|
|
read_guest_mem_server(global_qtest, server);
|
|
}
|
|
|
|
static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc)
|
|
{
|
|
TestServer *s = arg;
|
|
TestServer *dest;
|
|
GString *dest_cmdline;
|
|
char *uri;
|
|
QTestState *to;
|
|
GSource *source;
|
|
QDict *rsp;
|
|
guint8 *log;
|
|
guint64 size;
|
|
|
|
if (!wait_for_fds(s)) {
|
|
return;
|
|
}
|
|
|
|
dest = test_server_new("dest", s->vu_ops);
|
|
dest_cmdline = g_string_new(qos_get_current_command_line());
|
|
uri = g_strdup_printf("%s%s", "unix:", dest->mig_path);
|
|
|
|
size = get_log_size(s);
|
|
g_assert_cmpint(size, ==, (256 * 1024 * 1024) / (VHOST_LOG_PAGE * 8));
|
|
|
|
test_server_listen(dest);
|
|
g_string_append_printf(dest_cmdline, " -incoming %s", uri);
|
|
append_mem_opts(dest, dest_cmdline, 256, TEST_MEMFD_AUTO);
|
|
dest->vu_ops->append_opts(dest, dest_cmdline, "");
|
|
to = qtest_init(dest_cmdline->str);
|
|
|
|
/* This would be where you call qos_allocate_objects(to, NULL), if you want
|
|
* to talk to the QVirtioNet object on the destination.
|
|
*/
|
|
|
|
source = g_source_new(&test_migrate_source_funcs,
|
|
sizeof(TestMigrateSource));
|
|
((TestMigrateSource *)source)->src = s;
|
|
((TestMigrateSource *)source)->dest = dest;
|
|
g_source_attach(source, s->context);
|
|
|
|
/* slow down migration to have time to fiddle with log */
|
|
/* TODO: qtest could learn to break on some places */
|
|
rsp = qmp("{ 'execute': 'migrate-set-parameters',"
|
|
"'arguments': { 'max-bandwidth': 10 } }");
|
|
g_assert(qdict_haskey(rsp, "return"));
|
|
qobject_unref(rsp);
|
|
|
|
rsp = qmp("{ 'execute': 'migrate', 'arguments': { 'uri': %s } }", uri);
|
|
g_assert(qdict_haskey(rsp, "return"));
|
|
qobject_unref(rsp);
|
|
|
|
wait_for_log_fd(s);
|
|
|
|
log = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, s->log_fd, 0);
|
|
g_assert(log != MAP_FAILED);
|
|
|
|
/* modify first page */
|
|
write_guest_mem(s, 0x42);
|
|
log[0] = 1;
|
|
munmap(log, size);
|
|
|
|
/* speed things up */
|
|
rsp = qmp("{ 'execute': 'migrate-set-parameters',"
|
|
"'arguments': { 'max-bandwidth': 0 } }");
|
|
g_assert(qdict_haskey(rsp, "return"));
|
|
qobject_unref(rsp);
|
|
|
|
qmp_eventwait("STOP");
|
|
qtest_qmp_eventwait(to, "RESUME");
|
|
|
|
g_assert(wait_for_fds(dest));
|
|
read_guest_mem_server(to, dest);
|
|
|
|
g_source_destroy(source);
|
|
g_source_unref(source);
|
|
|
|
qtest_quit(to);
|
|
test_server_free(dest);
|
|
g_free(uri);
|
|
g_string_free(dest_cmdline, true);
|
|
}
|
|
|
|
static void wait_for_rings_started(TestServer *s, size_t count)
|
|
{
|
|
gint64 end_time;
|
|
|
|
g_mutex_lock(&s->data_mutex);
|
|
end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
|
|
while (ctpop64(s->rings) != count) {
|
|
if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
|
|
/* timeout has passed */
|
|
g_assert_cmpint(ctpop64(s->rings), ==, count);
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_mutex_unlock(&s->data_mutex);
|
|
}
|
|
|
|
static inline void test_server_connect(TestServer *server)
|
|
{
|
|
test_server_create_chr(server, ",reconnect-ms=1000");
|
|
}
|
|
|
|
static gboolean
|
|
reconnect_cb(gpointer user_data)
|
|
{
|
|
TestServer *s = user_data;
|
|
|
|
qemu_chr_fe_disconnect(&s->chr);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gpointer
|
|
connect_thread(gpointer data)
|
|
{
|
|
TestServer *s = data;
|
|
|
|
/* wait for qemu to start before first try, to avoid extra warnings */
|
|
g_usleep(G_USEC_PER_SEC);
|
|
test_server_connect(s);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void *vhost_user_test_setup_reconnect(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *s = test_server_new("reconnect", arg);
|
|
|
|
g_thread_unref(g_thread_new("connect", connect_thread, s));
|
|
append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO);
|
|
s->vu_ops->append_opts(s, cmd_line, ",server=on");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, s);
|
|
|
|
return s;
|
|
}
|
|
|
|
static void test_reconnect(void *obj, void *arg, QGuestAllocator *alloc)
|
|
{
|
|
TestServer *s = arg;
|
|
GSource *src;
|
|
|
|
if (!wait_for_fds(s)) {
|
|
return;
|
|
}
|
|
|
|
wait_for_rings_started(s, 2);
|
|
|
|
/* reconnect */
|
|
s->fds_num = 0;
|
|
s->rings = 0;
|
|
src = g_idle_source_new();
|
|
g_source_set_callback(src, reconnect_cb, s, NULL);
|
|
g_source_attach(src, s->context);
|
|
g_source_unref(src);
|
|
g_assert(wait_for_fds(s));
|
|
wait_for_rings_started(s, 2);
|
|
}
|
|
|
|
static void *vhost_user_test_setup_connect_fail(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *s = test_server_new("connect-fail", arg);
|
|
|
|
s->test_fail = true;
|
|
|
|
g_thread_unref(g_thread_new("connect", connect_thread, s));
|
|
append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO);
|
|
s->vu_ops->append_opts(s, cmd_line, ",server=on");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, s);
|
|
|
|
return s;
|
|
}
|
|
|
|
static void *vhost_user_test_setup_flags_mismatch(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *s = test_server_new("flags-mismatch", arg);
|
|
|
|
s->test_flags = TEST_FLAGS_DISCONNECT;
|
|
|
|
g_thread_unref(g_thread_new("connect", connect_thread, s));
|
|
append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO);
|
|
s->vu_ops->append_opts(s, cmd_line, ",server=on");
|
|
|
|
g_test_queue_destroy(vhost_user_test_cleanup, s);
|
|
|
|
return s;
|
|
}
|
|
|
|
static void test_vhost_user_started(void *obj, void *arg, QGuestAllocator *alloc)
|
|
{
|
|
TestServer *s = arg;
|
|
|
|
if (!wait_for_fds(s)) {
|
|
return;
|
|
}
|
|
wait_for_rings_started(s, 2);
|
|
}
|
|
|
|
static void *vhost_user_test_setup_multiqueue(GString *cmd_line, void *arg)
|
|
{
|
|
TestServer *s = vhost_user_test_setup(cmd_line, arg);
|
|
|
|
s->queues = 2;
|
|
g_string_append_printf(cmd_line,
|
|
" -set netdev.hs0.queues=%d"
|
|
" -global virtio-net-pci.vectors=%d",
|
|
s->queues, s->queues * 2 + 2);
|
|
|
|
return s;
|
|
}
|
|
|
|
static void test_multiqueue(void *obj, void *arg, QGuestAllocator *alloc)
|
|
{
|
|
TestServer *s = arg;
|
|
|
|
wait_for_rings_started(s, s->queues * 2);
|
|
}
|
|
|
|
|
|
static uint64_t vu_net_get_features(TestServer *s)
|
|
{
|
|
uint64_t features = 0x1ULL << VHOST_F_LOG_ALL |
|
|
0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
|
|
|
|
if (s->queues > 1) {
|
|
features |= 0x1ULL << VIRTIO_NET_F_MQ;
|
|
}
|
|
|
|
return features;
|
|
}
|
|
|
|
static void vu_net_set_features(TestServer *s, CharBackend *chr,
|
|
VhostUserMsg *msg)
|
|
{
|
|
g_assert(msg->payload.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES));
|
|
if (s->test_flags == TEST_FLAGS_DISCONNECT) {
|
|
qemu_chr_fe_disconnect(chr);
|
|
s->test_flags = TEST_FLAGS_BAD;
|
|
}
|
|
}
|
|
|
|
static void vu_net_get_protocol_features(TestServer *s, CharBackend *chr,
|
|
VhostUserMsg *msg)
|
|
{
|
|
/* send back features to qemu */
|
|
msg->flags |= VHOST_USER_REPLY_MASK;
|
|
msg->size = sizeof(m.payload.u64);
|
|
msg->payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
|
|
msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN;
|
|
if (s->queues > 1) {
|
|
msg->payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ;
|
|
}
|
|
qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size);
|
|
}
|
|
|
|
/* Each VHOST-USER device should have its ops structure defined. */
|
|
static struct vhost_user_ops g_vu_net_ops = {
|
|
.type = VHOST_USER_NET,
|
|
|
|
.append_opts = append_vhost_net_opts,
|
|
|
|
.get_features = vu_net_get_features,
|
|
.set_features = vu_net_set_features,
|
|
.get_protocol_features = vu_net_get_protocol_features,
|
|
};
|
|
|
|
static void register_vhost_user_test(void)
|
|
{
|
|
QOSGraphTestOptions opts = {
|
|
.before = vhost_user_test_setup,
|
|
.subprocess = true,
|
|
.arg = &g_vu_net_ops,
|
|
};
|
|
|
|
qemu_add_opts(&qemu_chardev_opts);
|
|
|
|
qos_add_test("vhost-user/read-guest-mem/memfile",
|
|
"virtio-net",
|
|
test_read_guest_mem, &opts);
|
|
|
|
opts.before = vhost_user_test_setup_shm;
|
|
qos_add_test("vhost-user/read-guest-mem/shm",
|
|
"virtio-net",
|
|
test_read_guest_mem, &opts);
|
|
|
|
if (qemu_memfd_check(MFD_ALLOW_SEALING)) {
|
|
opts.before = vhost_user_test_setup_memfd;
|
|
qos_add_test("vhost-user/read-guest-mem/memfd",
|
|
"virtio-net",
|
|
test_read_guest_mem, &opts);
|
|
}
|
|
|
|
qos_add_test("vhost-user/migrate",
|
|
"virtio-net",
|
|
test_migrate, &opts);
|
|
|
|
opts.before = vhost_user_test_setup_reconnect;
|
|
qos_add_test("vhost-user/reconnect", "virtio-net",
|
|
test_reconnect, &opts);
|
|
|
|
opts.before = vhost_user_test_setup_connect_fail;
|
|
qos_add_test("vhost-user/connect-fail", "virtio-net",
|
|
test_vhost_user_started, &opts);
|
|
|
|
opts.before = vhost_user_test_setup_flags_mismatch;
|
|
qos_add_test("vhost-user/flags-mismatch", "virtio-net",
|
|
test_vhost_user_started, &opts);
|
|
|
|
opts.before = vhost_user_test_setup_multiqueue;
|
|
opts.edge.extra_device_opts = "mq=on";
|
|
qos_add_test("vhost-user/multiqueue",
|
|
"virtio-net",
|
|
test_multiqueue, &opts);
|
|
}
|
|
libqos_init(register_vhost_user_test);
|
|
|
|
static uint64_t vu_gpio_get_features(TestServer *s)
|
|
{
|
|
return 0x1ULL << VIRTIO_F_VERSION_1 |
|
|
0x1ULL << VIRTIO_GPIO_F_IRQ |
|
|
0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
|
|
}
|
|
|
|
/*
|
|
* This stub can't handle all the message types but we should reply
|
|
* that we support VHOST_USER_PROTOCOL_F_CONFIG as gpio would use it
|
|
* talking to a read vhost-user daemon.
|
|
*/
|
|
static void vu_gpio_get_protocol_features(TestServer *s, CharBackend *chr,
|
|
VhostUserMsg *msg)
|
|
{
|
|
/* send back features to qemu */
|
|
msg->flags |= VHOST_USER_REPLY_MASK;
|
|
msg->size = sizeof(m.payload.u64);
|
|
msg->payload.u64 = 1ULL << VHOST_USER_PROTOCOL_F_CONFIG;
|
|
|
|
qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size);
|
|
}
|
|
|
|
static struct vhost_user_ops g_vu_gpio_ops = {
|
|
.type = VHOST_USER_GPIO,
|
|
|
|
.append_opts = append_vhost_gpio_opts,
|
|
|
|
.get_features = vu_gpio_get_features,
|
|
.set_features = vu_net_set_features,
|
|
.get_protocol_features = vu_gpio_get_protocol_features,
|
|
};
|
|
|
|
static void register_vhost_gpio_test(void)
|
|
{
|
|
QOSGraphTestOptions opts = {
|
|
.before = vhost_user_test_setup,
|
|
.subprocess = true,
|
|
.arg = &g_vu_gpio_ops,
|
|
};
|
|
|
|
qemu_add_opts(&qemu_chardev_opts);
|
|
|
|
qos_add_test("read-guest-mem/memfile",
|
|
"vhost-user-gpio", test_read_guest_mem, &opts);
|
|
}
|
|
libqos_init(register_vhost_gpio_test);
|
|
|
|
static uint64_t vu_scmi_get_features(TestServer *s)
|
|
{
|
|
return 0x1ULL << VIRTIO_F_VERSION_1 |
|
|
0x1ULL << VIRTIO_SCMI_F_P2A_CHANNELS |
|
|
0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
|
|
}
|
|
|
|
static void vu_scmi_get_protocol_features(TestServer *s, CharBackend *chr,
|
|
VhostUserMsg *msg)
|
|
{
|
|
msg->flags |= VHOST_USER_REPLY_MASK;
|
|
msg->size = sizeof(m.payload.u64);
|
|
msg->payload.u64 = 1ULL << VHOST_USER_PROTOCOL_F_MQ;
|
|
|
|
qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size);
|
|
}
|
|
|
|
static struct vhost_user_ops g_vu_scmi_ops = {
|
|
.type = VHOST_USER_SCMI,
|
|
|
|
.append_opts = append_vhost_gpio_opts,
|
|
|
|
.get_features = vu_scmi_get_features,
|
|
.set_features = vu_net_set_features,
|
|
.get_protocol_features = vu_scmi_get_protocol_features,
|
|
};
|
|
|
|
static void register_vhost_scmi_test(void)
|
|
{
|
|
QOSGraphTestOptions opts = {
|
|
.before = vhost_user_test_setup,
|
|
.subprocess = true,
|
|
.arg = &g_vu_scmi_ops,
|
|
};
|
|
|
|
qemu_add_opts(&qemu_chardev_opts);
|
|
|
|
qos_add_test("scmi/read-guest-mem/memfile",
|
|
"vhost-user-scmi", test_read_guest_mem, &opts);
|
|
}
|
|
libqos_init(register_vhost_scmi_test);
|