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authorPeter Maydell2018-06-04 11:15:16 +0200
committerPeter Maydell2018-06-04 11:15:16 +0200
commitf67c9b693ae3d03305162623a043ba4067a3c00c (patch)
treef7b339649902accf7aeb09a8cd48dba45e962b3c /contrib/vhost-user-blk/vhost-user-blk.c
parentMerge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging (diff)
parentvhost-blk: turn on pre-defined RO feature bit (diff)
downloadqemu-f67c9b693ae3d03305162623a043ba4067a3c00c.tar.gz
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
acpi, vhost, misc: fixes, features vDPA support, fix to vhost blk RO bit handling, some include path cleanups, NFIT ACPI table. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Fri 01 Jun 2018 17:25:19 BST # gpg: using RSA key 281F0DB8D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: (31 commits) vhost-blk: turn on pre-defined RO feature bit ACPI testing: test NFIT platform capabilities nvdimm, acpi: support NFIT platform capabilities tests/.gitignore: add entry for generated file arch_init: sort architectures ui: use local path for local headers qga: use local path for local headers colo: use local path for local headers migration: use local path for local headers usb: use local path for local headers sd: fix up include vhost-scsi: drop an unused include ppc: use local path for local headers rocker: drop an unused include e1000e: use local path for local headers ioapic: fix up includes ide: use local path for local headers display: use local path for local headers trace: use local path for local headers migration: drop an unused include ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'contrib/vhost-user-blk/vhost-user-blk.c')
-rw-r--r--contrib/vhost-user-blk/vhost-user-blk.c48
1 files changed, 35 insertions, 13 deletions
diff --git a/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/vhost-user-blk.c
index a6a132a492..571f114a56 100644
--- a/contrib/vhost-user-blk/vhost-user-blk.c
+++ b/contrib/vhost-user-blk/vhost-user-blk.c
@@ -31,6 +31,7 @@ typedef struct VubDev {
VugDev parent;
int blk_fd;
struct virtio_blk_config blkcfg;
+ bool enable_ro;
char *blk_name;
GMainLoop *loop;
} VubDev;
@@ -301,14 +302,27 @@ static void vub_queue_set_started(VuDev *vu_dev, int idx, bool started)
static uint64_t
vub_get_features(VuDev *dev)
{
- return 1ull << VIRTIO_BLK_F_SIZE_MAX |
- 1ull << VIRTIO_BLK_F_SEG_MAX |
- 1ull << VIRTIO_BLK_F_TOPOLOGY |
- 1ull << VIRTIO_BLK_F_BLK_SIZE |
- 1ull << VIRTIO_BLK_F_FLUSH |
- 1ull << VIRTIO_BLK_F_CONFIG_WCE |
- 1ull << VIRTIO_F_VERSION_1 |
- 1ull << VHOST_USER_F_PROTOCOL_FEATURES;
+ uint64_t features;
+ VugDev *gdev;
+ VubDev *vdev_blk;
+
+ gdev = container_of(dev, VugDev, parent);
+ vdev_blk = container_of(gdev, VubDev, parent);
+
+ features = 1ull << VIRTIO_BLK_F_SIZE_MAX |
+ 1ull << VIRTIO_BLK_F_SEG_MAX |
+ 1ull << VIRTIO_BLK_F_TOPOLOGY |
+ 1ull << VIRTIO_BLK_F_BLK_SIZE |
+ 1ull << VIRTIO_BLK_F_FLUSH |
+ 1ull << VIRTIO_BLK_F_CONFIG_WCE |
+ 1ull << VIRTIO_F_VERSION_1 |
+ 1ull << VHOST_USER_F_PROTOCOL_FEATURES;
+
+ if (vdev_blk->enable_ro) {
+ features |= 1ull << VIRTIO_BLK_F_RO;
+ }
+
+ return features;
}
static uint64_t
@@ -476,6 +490,7 @@ vub_new(char *blk_file)
vub_free(vdev_blk);
return NULL;
}
+ vdev_blk->enable_ro = false;
vdev_blk->blkcfg.wce = 0;
vdev_blk->blk_name = blk_file;
@@ -490,10 +505,11 @@ int main(int argc, char **argv)
int opt;
char *unix_socket = NULL;
char *blk_file = NULL;
+ bool enable_ro = false;
int lsock = -1, csock = -1;
VubDev *vdev_blk = NULL;
- while ((opt = getopt(argc, argv, "b:s:h")) != -1) {
+ while ((opt = getopt(argc, argv, "b:rs:h")) != -1) {
switch (opt) {
case 'b':
blk_file = g_strdup(optarg);
@@ -501,17 +517,20 @@ int main(int argc, char **argv)
case 's':
unix_socket = g_strdup(optarg);
break;
+ case 'r':
+ enable_ro = true;
+ break;
case 'h':
default:
- printf("Usage: %s [-b block device or file, -s UNIX domain socket]"
- " | [ -h ]\n", argv[0]);
+ printf("Usage: %s [ -b block device or file, -s UNIX domain socket"
+ " | -r Enable read-only ] | [ -h ]\n", argv[0]);
return 0;
}
}
if (!unix_socket || !blk_file) {
- printf("Usage: %s [-b block device or file, -s UNIX domain socket] |"
- " [ -h ]\n", argv[0]);
+ printf("Usage: %s [ -b block device or file, -s UNIX domain socket"
+ " | -r Enable read-only ] | [ -h ]\n", argv[0]);
return -1;
}
@@ -530,6 +549,9 @@ int main(int argc, char **argv)
if (!vdev_blk) {
goto err;
}
+ if (enable_ro) {
+ vdev_blk->enable_ro = true;
+ }
vug_init(&vdev_blk->parent, csock, vub_panic_cb, &vub_iface);