mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-07-22 10:55:31 +00:00
fd66dbd424
libblkio (https://gitlab.com/libblkio/libblkio/) is a library for high-performance disk I/O. It currently supports io_uring, virtio-blk-vhost-user, and virtio-blk-vhost-vdpa with additional drivers under development. One of the reasons for developing libblkio is that other applications besides QEMU can use it. This will be particularly useful for virtio-blk-vhost-user which applications may wish to use for connecting to qemu-storage-daemon. libblkio also gives us an opportunity to develop in Rust behind a C API that is easy to consume from QEMU. This commit adds io_uring, nvme-io_uring, virtio-blk-vhost-user, and virtio-blk-vhost-vdpa BlockDrivers to QEMU using libblkio. It will be easy to add other libblkio drivers since they will share the majority of code. For now I/O buffers are copied through bounce buffers if the libblkio driver requires it. Later commits add an optimization for pre-registering guest RAM to avoid bounce buffers. The syntax is: --blockdev io_uring,node-name=drive0,filename=test.img,readonly=on|off,cache.direct=on|off --blockdev nvme-io_uring,node-name=drive0,filename=/dev/ng0n1,readonly=on|off,cache.direct=on --blockdev virtio-blk-vhost-vdpa,node-name=drive0,path=/dev/vdpa...,readonly=on|off,cache.direct=on --blockdev virtio-blk-vhost-user,node-name=drive0,path=vhost-user-blk.sock,readonly=on|off,cache.direct=on Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20221013185908.1297568-3-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
#include "qemu/osdep.h"
|
|
#include "libqtest.h"
|
|
|
|
const char common_args[] = "-nodefaults -machine none";
|
|
|
|
static void test_modules_load(const void *data)
|
|
{
|
|
QTestState *qts;
|
|
const char **args = (const char **)data;
|
|
|
|
qts = qtest_init(common_args);
|
|
qtest_module_load(qts, args[0], args[1]);
|
|
qtest_quit(qts);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
const char *modules[] = {
|
|
#ifdef CONFIG_BLKIO
|
|
"block-", "blkio",
|
|
#endif
|
|
#ifdef CONFIG_CURL
|
|
"block-", "curl",
|
|
#endif
|
|
#ifdef CONFIG_GLUSTERFS
|
|
"block-", "gluster",
|
|
#endif
|
|
#ifdef CONFIG_LIBISCSI
|
|
"block-", "iscsi",
|
|
#endif
|
|
#ifdef CONFIG_LIBNFS
|
|
"block-", "nfs",
|
|
#endif
|
|
#ifdef CONFIG_LIBSSH
|
|
"block-", "ssh",
|
|
#endif
|
|
#ifdef CONFIG_RBD
|
|
"block-", "rbd",
|
|
#endif
|
|
#ifdef CONFIG_AUDIO_ALSA
|
|
"audio-", "alsa",
|
|
#endif
|
|
#ifdef CONFIG_AUDIO_OSS
|
|
"audio-", "oss",
|
|
#endif
|
|
#ifdef CONFIG_AUDIO_PA
|
|
"audio-", "pa",
|
|
#endif
|
|
#ifdef CONFIG_AUDIO_SDL
|
|
"audio-", "sdl",
|
|
#endif
|
|
#ifdef CONFIG_CURSES
|
|
"ui-", "curses",
|
|
#endif
|
|
#if defined(CONFIG_GTK) && defined(CONFIG_VTE)
|
|
"ui-", "gtk",
|
|
#endif
|
|
#ifdef CONFIG_SDL
|
|
"ui-", "sdl",
|
|
#endif
|
|
#if defined(CONFIG_SPICE) && defined(CONFIG_GIO)
|
|
"ui-", "spice-app",
|
|
#endif
|
|
};
|
|
int i;
|
|
|
|
g_test_init(&argc, &argv, NULL);
|
|
|
|
for (i = 0; i < G_N_ELEMENTS(modules); i += 2) {
|
|
char *testname = g_strdup_printf("/module/load/%s%s",
|
|
modules[i], modules[i + 1]);
|
|
qtest_add_data_func(testname, modules + i, test_modules_load);
|
|
g_free(testname);
|
|
}
|
|
|
|
return g_test_run();
|
|
}
|