Currently vhost-user-scsi driver doesn't allow to change
the configuration space of virtio_scsi, while vhost-user-blk
support that, so here we set the flag in vhost-user-blk driver
and unset it in vhost-user-scsi.
Signed-off-by: Changpeng Liu
---
hw/block/vhost-user-blk.c | 1 +
hw/scsi/
Variable `vdev` in `struct vhost_dev` will not be ready
until start the device, so let's not use it for the error
output here.
Fixes: 5653493 ("hw/virtio/vhost-user: don't suppress F_CONFIG when supported")
Signed-off-by: Changpeng Liu
---
hw/virtio/vhost-user.c | 8 +++
) for vhost-user-blk device.
But for this patch, we choose append parameters to Qemu vhost-user-blk as the
solution.
Changpeng Liu (2):
vhost-user-blk: introduce a new vhost-user-blk host device
vhost-user-blk: introduce a vhost-user-blk sample application
.giti
exist vhost-user messages, Qemu can't get the parameters such as
capacity of the backend block device, users need to append such
parameters when start Qemu.
Signed-off-by: Changpeng Liu
---
configure | 11 ++
hw/block/Makefile.objs | 3 +
hw/block/
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 2 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 695
device live migration as well.
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio config space
vhost-user-blk: introduce a new vhost-user-blk host device
contrib/libvhost-user: enable virtio config space messages
contrib/vhost-user-blk: introduce a vhost-user-blk
messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
configure | 11 ++
hw/block/Makefile.objs | 3 +
hw/block/vhost-user-blk.c | 360 +
hw/virtio
, VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 31 ++
hw/virtio/vhost-user.c| 86 +++
hw/virtio/vhost.c
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 51 +++
contrib/libvhost-user/libvhost-user.h | 14 ++
2 files changed, 65 insertions(+)
diff --git a/contrib/libvhost-user/libvhost-user.c
b
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 2 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 735
Currently virtio-pci driver hardcoded 2 vectors for virtio-blk device,
for multiple I/O queues scenario, all the I/O queues will share one
interrupt vector, while here, enable multiple vectors according to
the number of I/O queues.
Signed-off-by: Changpeng Liu
---
hw/virtio/virtio-pci.c | 12
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 556
toring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space.
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio config space
vhost-user-blk: introduce a new vhost-user-blk host device
,
VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change in the I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 44
hw/virtio/vhost-user.c| 107 ++
hw/virtio/vhost.c
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 80 +++
contrib/libvhost-user/libvhost-user.h | 36 +++-
2 files changed, 115 insertions(+), 1 deletion(-)
diff --git a/contrib/libvhost-user
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 80 +++
contrib/libvhost-user/libvhost-user.h | 36 +++-
2 files changed, 115 insertions(+), 1 deletion(-)
diff --git a/contrib/libvhost-user
,
VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change in the I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 45
hw/virtio/vhost-user.c| 107 ++
hw/virtio/vhost.c
valid data buffers.
v4-v5: add header offset and size for virtio config space.
v3-v4: refactoring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space.
Changpeng Liu (4):
vhost-user: add new vhost user messages
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 550
,
VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change in the I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 39
hw/virtio/vhost-user.c| 98 +++
hw/virtio/vhost.c
live migration as well.
V4-v5: add header offset and size for virtio config space.
v3-v4: refactoring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space.
Changpeng Liu (4):
vhost-user: add new vhost user messages
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 79 +++
contrib/libvhost-user/libvhost-user.h | 24 ++-
2 files changed, 102 insertions(+), 1 deletion(-)
diff --git a/contrib/libvhost-user
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 536
forward the IO
requests through socket message, but this will have huge performance drop;
Any feedback is appreciated.
Changpeng Liu (1):
block/NVMe: introduce a new vhost NVMe host device to QEMU
hw/block/Makefile.objs | 3 +
hw/block/nvme.h| 28 ++
hw/block
.
Currently Guest OS must use 4.12 kernel or later.
Signed-off-by: Changpeng Liu
---
hw/block/Makefile.objs | 3 +
hw/block/nvme.h| 28 ++
hw/block/vhost.c | 439 ++
hw/block/vhost_user.c | 588 +
hw/block
Public bug reported:
The new commit: 4fe6d78 break the existing vhost-user devices, such as
vhost-user-scsi/blk and vhost-vsocks when exit the host driver,
kvm_io_ioeventfd_del will hit the abort().
** Affects: qemu
Importance: Undecided
Status: New
** Tags: vhost-user virtio
--
VIRTIO_BLK_T_DISCARD
to extend exist virtio-blk protocol. virtio-blk protocol uses a single
8 bytes descriptor containing type,reserved and sector, currently Linux
uses the reserved field as IO priority, here we also re-use the reserved
field as number of discard sectors.
Signed-off-by: Changpeng Liu
Linux commit 1f23816b8 "virtio_blk: add discard and write zeroes support"
added the support in the Guest kernel, while here enable the feature bits
support with vhost-user-blk driver. Also enable the test example utility
with DISCARD command support.
Signed-off-by: Changpeng Liu
--
Signed-off-by: Changpeng Liu
---
contrib/vhost-user-blk/vhost-user-blk.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/contrib/vhost-user-blk/vhost-user-blk.c
b/contrib/vhost-user-blk/vhost-user-blk.c
index 858221a..49640df 100644
--- a/contrib/vhost-user-blk/vhost
Signed-off-by: Changpeng Liu
---
configure | 3 +++
1 file changed, 3 insertions(+)
diff --git a/configure b/configure
index 3eee3fc..3d5af97 100755
--- a/configure
+++ b/configure
@@ -5763,6 +5763,9 @@ if test "$want_tools" = "yes" ; then
if [ "$posix" = "
Linux commit 1f23816b8 "virtio_blk: add discard and write zeroes support"
added the support in the Guest kernel, while here also enable the features
support with vhost-user-blk driver. Also enable the test example utility
with DISCARD and WRITE ZEROES commands.
Signed-off-by: Cha
Linux commit 1f23816b8 "virtio_blk: add discard and write zeroes support"
added the support in the Guest kernel, while here also enable the features
support with vhost-user-blk driver. Also enable the test example utility
with DISCARD and WRITE ZEROES commands.
Signed-off-by: Cha
Read only feature shouldn't be negotiable, because if the
backend device reported Read only feature supported, QEMU
host driver shouldn't change backend's RO attribute.
Signed-off-by: Changpeng Liu
---
hw/block/vhost-user-blk.c | 5 +
include/hw/virtio/vhost-user
This patch reports the protocol feature that is only advertised by
QEMU if the device implements the config ops.
Signed-off-by: Changpeng Liu
---
contrib/vhost-user-blk/vhost-user-blk.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/contrib/vhost-user-blk/vhost-user-blk.c
b/contrib
Read only feature shouldn't be negotiable, because if the
backend device reported Read only feature supported, QEMU
host driver shouldn't change backend's RO attribute. While
here, also enable the vhost-user-blk test utility to test
RO feature.
Signed-off-by: Changpeng Liu
---
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
configure | 11 ++
hw/block/Makefile.objs
device live migration as well.
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio config space
vhost-user-blk: introduce a new vhost-user-blk host device
contrib/libvhost-user: enable virtio config space messages
contrib/vhost-user-blk: introduce a vhost-user-blk
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 74 +++
contrib/libvhost-user/libvhost-user.h | 15 +++
2 files changed, 89 insertions(+)
diff --git a/contrib/libvhost-user/libvhost-user.c
b/contrib
, VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 32 +
hw/virtio/vhost-user.c| 97 +++
hw/virtio/vhost.c
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 2 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 735
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 492
case
of virtio config space changed.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.c | 75 +++
contrib/libvhost-user/libvhost-user.h | 15 ++-
2 files changed, 89 insertions(+), 1 deletion(-)
diff --git a/contrib/libvhost-user/libvhost
live migration as well.
v3-v4: refactoring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio config space
vhost-user-blk: introduce
,
VHOST_USER_SET_CONFIG_FD message is added as the event notifier
in case virtio config space change in the I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 33 +
hw/virtio/vhost-user.c| 97 +++
hw/virtio/vhost.c
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
configure | 11 ++
hw/block/Makefile.objs
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 543
v4-v5: add header offset and size for virtio config space.
v3-v4: refactoring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space.
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio co
,
VHOST_USER_SLAVE_CONFIG_CHANGE_MSG message is added as the event notifier
in case virtio config space change in the slave I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 53 +
hw/virtio/vhost-user.c| 118 ++
hw
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
Enable VHOST_USER_GET_CONFIG/VHOST_USER_SET_CONFIG messages in
libvhost-user library, users can implement their own I/O target
based on the library. This enable the virtio config space delivered
between QEMU host device and the I/O target.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user
-user get/set messages' payload doesn't contain invalid
data buffers.
v4-v5: add header offset and size for virtio config space.
v3-v4: refactoring the vhost user block example patch based on new
libvhost-user library.
v2-v3: add new vhost user message to get/set virtio config space.
Changp
,
VHOST_USER_SLAVE_CONFIG_CHANGE_MSG message is added as the event notifier
in case virtio config space change in the slave I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 55 ++
hw/virtio/vhost-user.c| 118 ++
hw
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 545
Enable VHOST_USER_GET_CONFIG/VHOST_USER_SET_CONFIG messages in
libvhost-user library, users can implement their own I/O target
based on the library. This enable the virtio config space delivered
between QEMU host device and the I/O target.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user
,
VHOST_USER_SLAVE_CONFIG_CHANGE_MSG message is added as the event notifier
in case virtio config space change in the slave I/O target.
Signed-off-by: Changpeng Liu
---
docs/interop/vhost-user.txt | 55 ++
hw/virtio/vhost-user.c| 118 ++
hw
Enable VHOST_USER_GET_CONFIG/VHOST_USER_SET_CONFIG messages in
libvhost-user library, users can implement their own I/O target
based on the library. This enable the virtio config space delivered
between QEMU host device and the I/O target.
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user
/path/vhost.socket
Signed-off-by: Changpeng Liu
---
.gitignore | 1 +
Makefile| 3 +
Makefile.objs | 1 +
contrib/vhost-user-blk/Makefile.objs| 1 +
contrib/vhost-user-blk/vhost-user-blk.c | 545
set virtio config space.
Changpeng Liu (4):
vhost-user: add new vhost user messages to support virtio config space
vhost-user-blk: introduce a new vhost-user-blk host device
contrib/libvhost-user: enable virtio config space messages
contrib/vhost-user-blk: introduce a vhost-user-blk sample a
logic, such as all
user space I/O stack against hardware block device. It uses the new
vhost messages(VHOST_USER_GET_CONFIG) to get block virtio config
information from backend process.
Signed-off-by: Changpeng Liu
---
default-configs/pci.mak| 1 +
hw/block/Makefile.objs
Signed-off-by: Changpeng Liu
---
contrib/libvhost-user/libvhost-user.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/contrib/libvhost-user/libvhost-user.h
b/contrib/libvhost-user/libvhost-user.h
index 79f7a53..b27075e 100644
--- a/contrib/libvhost-user/libvhost-user.h
+++ b/contrib
This patch reports the protocol feature that is only advertised by
QEMU if the device implements the config ops.
Signed-off-by: Changpeng Liu
---
contrib/vhost-user-blk/vhost-user-blk.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/contrib/vhost-user-blk/vhost-user-blk.c
b/contrib
Currently virtio-pci driver hardcoded 2 vectors for virtio-blk device,
for multiple I/O queues scenario, all the I/O queues will share one
interrupt vector, while here, enable multiple vectors according to
the number of I/O queues.
Signed-off-by: Changpeng Liu
---
hw/virtio/virtio-pci.c | 14
lizing the host driver, for now, discard/write zeroes
are not supported by virtio-blk host driver, so set the config
size as before, users can change config size when adding the new
feature bits support.
Signed-off-by: Changpeng Liu
---
hw/block/virtio-blk.c | 15 +++
include
lizing the host driver, for now, discard/write zeroes
are not supported by virtio-blk host driver, so set the config
size as before, users can change config size when adding the new
feature bits support.
Signed-off-by: Changpeng Liu
---
hw/block/virtio-blk.c | 10 ++
1 file changed, 6
ed: Invalid argument
Since virtio-blk doesn't support the "discard" and "write zeroes"
features, it shouldn't even expose the associated fields in the
config space actually. Just include all fields up to num_queues to
match QEMU 3.1 and older.
Signed-off-
ed: Invalid argument
Since virtio-blk doesn't support the "discard" and "write zeroes"
features, it shouldn't even expose the associated fields in the
config space actually. Just include all fields up to num_queues to
match QEMU 3.1 and older.
Signed-off-
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