Commit Graph

183 Commits

Author SHA1 Message Date
Marc-André Lureau
d52c454aad contrib: add vhost-user-gpu
Add a vhost-user gpu backend, based on virtio-gpu/3d device. It is
associated with a vhost-user-gpu device.

Various TODO and nice to have items:
- multi-head support
- crash & resume handling
- accelerated rendering/display that avoids the waiting round trips
- edid support

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190524130946.31736-6-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-29 06:30:45 +02:00
Marc-André Lureau
bd2e44fee4 vhost-user: add vhost_user_gpu_set_socket()
Add a new vhost-user message to give a unix socket to a vhost-user
backend for GPU display updates.

Back when I started that work, I added a new GPU channel because the
vhost-user protocol wasn't bidirectional. Since then, there is a
vhost-user-slave channel for the slave to send requests to the master.
We could extend it with GPU messages. However, the GPU protocol is
quite orthogonal to vhost-user, thus I chose to have a new dedicated
channel.

See vhost-user-gpu.rst for the protocol details.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190524130946.31736-2-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-29 06:29:07 +02:00
Marc-André Lureau
06914c97d3 contrib: add vhost-user-input
Add a vhost-user input backend example, based on virtio-input-host
device. It takes an evdev path as argument, and can be associated with
a vhost-user-input device via a UNIX socket:

$ vhost-user-input -p /dev/input/eventX -s /tmp/vui.sock

$ qemu ... -chardev socket,id=vuic,path=/tmp/vui.sock
  -device vhost-user-input-pci,chardev=vuic

This example is intentionally not included in $TOOLS, and not
installed by default.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190514104126.6294-4-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-22 07:16:58 +02:00
Marc-André Lureau
7fa9f0388c libvhost-user: fix -Werror=format= on ppc64
That should fix the following warning:

/home/pm215/qemu/contrib/libvhost-user/libvhost-user.c: In function
‘vu_set_mem_table_exec_postcopy’:
/home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error:
format ‘%llx’ expects argument of type ‘long long unsigned int’, but
argument 5 has type ‘__u64’ [-Werror=format=]
         DPRINT("%s: region %d: Registered userfault for %llx + %llx\n",
         ^
/home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error:
format ‘%llx’ expects argument of type ‘long long unsigned int’, but
argument 6 has type ‘__u64’ [-Werror=format=]
cc1: all warnings being treated as errors

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190514104126.6294-3-marcandre.lureau@redhat.com

{ kraxel: s/PRIu64/PRIx64/ ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-22 07:16:17 +02:00
Marc-André Lureau
1005810b8a libvhost-user: fix cast warnings on 32 bits
Fixes warnings:
 warning: cast to pointer from integer of different size
 [-Wint-to-pointer-cast]

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190514104126.6294-2-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-22 07:14:16 +02:00
Li Feng
acbd487ddb libvhost-user: fix bad vu_log_write
Mark dirty as page, the step of each call is 1.

Signed-off-by: Li Feng <fengli@smartx.com>
Message-Id: <20190420091016.213160-1-fengli@smartx.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-05-20 18:40:02 -04:00
Xie Yongji
6b8f9c6e15 contrib/vhost-user-blk: enable inflight I/O tracking
This patch enables inflight I/O tracking for
vhost-user-blk backend so that we could restart it safely.

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190320112646.3712-8-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-05-20 18:40:02 -04:00
Peter Maydell
01807c8b0e Miscellaneous patches for 2019-05-13
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Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2019-05-13' into staging

Miscellaneous patches for 2019-05-13

# gpg: Signature made Mon 13 May 2019 08:04:02 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2019-05-13:
  Clean up decorations and whitespace around header guards
  Normalize header guard symbol definition.
  Clean up ill-advised or unusual header guards
  Clean up header guards that don't match their file name
  target/xtensa: Clean up core-isa.h header guards
  linux-user/nios2 linux-user/riscv: Clean up header guards
  authz: Normalize #include "authz/trace.h" to "trace.h"
  Use #include "..." for our own headers, <...> for others
  Clean up includes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-13 13:55:13 +01:00
Markus Armbruster
58ea30f514 Clean up header guards that don't match their file name
Header guard symbols should match their file name to make guard
collisions less likely.

Cleaned up with scripts/clean-header-guards.pl, followed by some
renaming of new guard symbols picked by the script to better ones.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-6-armbru@redhat.com>
[Rebase to master: update include/hw/net/ne2000-isa.h]
2019-05-13 08:58:55 +02:00
Markus Armbruster
1b6d3b517d Use #include "..." for our own headers, <...> for others
Also delete a few redundant #include.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-2-armbru@redhat.com>
2019-05-13 08:58:55 +02:00
Markus Armbruster
bbfff19688 Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes, with the changes
to the following files manually reverted:

    contrib/libvhost-user/libvhost-user-glib.h
    contrib/libvhost-user/libvhost-user.c
    contrib/libvhost-user/libvhost-user.h
    linux-user/mips64/cpu_loop.c
    linux-user/mips64/signal.c
    linux-user/sparc64/cpu_loop.c
    linux-user/sparc64/signal.c
    linux-user/x86_64/cpu_loop.c
    linux-user/x86_64/signal.c
    slirp/src/*
    target/s390x/gen-features.c
    tests/fp/platform.h
    tests/migration/s390x/a-b-bios.c
    tests/test-rcu-simpleq.c
    tests/test-rcu-tailq.c
    tests/uefi-test-tools/UefiTestToolsPkg/BiosTablesTest/BiosTablesTest.c

We're in the process of spinning out slirp/.  tests/fp/platform.h is
has to include qemu/osdep.h because tests/fp/berkeley-softfloat-3/ and
tests/fp/berkeley-testfloat-3/ don't.  tests/uefi-test-tools/ is guest
software.  The remaining reverts are the same as in commit
b7d89466dd.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190313162812.8885-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Revert change to tests/fp/platform.h, adjust commit message]
2019-05-13 08:58:55 +02:00
Marc-André Lureau
78067fdef6 libvhost-user: add PROTOCOL_F_CONFIG if {set, get}_config
Add the config protocol feature bit if the set_config & get_config
callbacks are implemented.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190503130034.24916-3-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-10 12:48:35 +02:00
Marc-André Lureau
d288eef3a0 libvhost-user: fix -Waddress-of-packed-member
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_mem_table_exec_postcopy’:
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:546:31: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member]
  546 |     VhostUserMemory *memory = &vmsg->payload.memory;
      |                               ^~~~~~~~~~~~~~~~~~~~~
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_mem_table_exec’:
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:688:31: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member]
  688 |     VhostUserMemory *memory = &vmsg->payload.memory;
      |                               ^~~~~~~~~~~~~~~~~~~~~
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_vring_addr_exec’:
/home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:817:36: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member]
  817 |     struct vhost_vring_addr *vra = &vmsg->payload.addr;
      |                                    ^~~~~~~~~~~~~~~~~~~

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190503130034.24916-2-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-10 12:48:35 +02:00
Cao Jiaxi
48bb55bfaa QEMU_PACKED: Remove gcc_struct attribute in Windows non x86 targets
gcc_struct is for x86 only, and it generates an warning on ARM64 Clang/MinGW targets.

Signed-off-by: Cao Jiaxi <driver1998@foxmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190503003618.10089-1-driver1998@foxmail.com
[PMM: dropped the slirp change as slirp is now a submodule]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-07 12:55:02 +01:00
Yuval Shaia
ade0075523 contrib/rdmacm-mux: Fix out-of-bounds risk
The function get_fd extract context from the received MAD message and
uses it as a key to fetch the destination fd from the mapping table.
A context can be dgid in case of CM request message or comm_id in case
of CM SIDR response message.

When MAD message with a smaller size as expected for the message type
received we are hitting out-of-bounds where we are looking for the
context out of message boundaries.

Fix it by validating the message size.

Reported-by Sam Smith <sam.j.smith@oracle.com>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20190212112347.1605-1-yuval.shaia@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2019-03-16 15:45:12 +02:00
Peter Maydell
9164add701 Final gitdm updates for 4.0
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-gitdm-next-120319-1' into staging

Final gitdm updates for 4.0

# gpg: Signature made Tue 12 Mar 2019 19:33:51 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-gitdm-next-120319-1:
  contrib: gitdm: add a mapping for Janus Technologies
  contrib: gitdm: another IBM email
  contrib: gitdm: add more individual contributors
  contrib: gitdm: Update Wave Computing group
  contrib: gitdm: Update domain-map

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-14 13:48:48 +00:00
Xie Yongji
5f9ff1eff3 libvhost-user: Support tracking inflight I/O in shared memory
This patch adds support for VHOST_USER_GET_INFLIGHT_FD and
VHOST_USER_SET_INFLIGHT_FD message to set/get shared buffer
to/from qemu. Then backend can track inflight I/O in this buffer.

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-5-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
Xie Yongji
f7671f3d49 libvhost-user: Introduce vu_queue_map_desc()
Introduce vu_queue_map_desc() which should be
independent with vu_queue_pop();

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190228085355.9614-4-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
Xie Yongji
792468cc6f libvhost-user: Remove unnecessary FD flag check for event file descriptors
The vu_check_queue_msg_file() has checked the FD flag. So let's
delete the redundant check after it.

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-3-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
Marc-André Lureau
b13919ab64 libvhost-user: add vu_queue_unpop()
vhost-user-input will make use of this function to undo some queue pop
in case the virtio queue does not have enough room.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190308140454.32437-11-marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
Marc-André Lureau
922ef483ec libvhost-user-glib: export vug_source_new()
Simplify the creation of FD sources for other users. This is just
convenience to avoid duplicating similar code elsewhere.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190308140454.32437-10-marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
Marc-André Lureau
6079865526 libvhost-user: exit by default on VHOST_USER_NONE
Since commit 2566378d6d, libvhost-user
no longer panics on disconnect (rc == 0), and instead silently ignores
an invalid VHOST_USER_NONE message.

Without extra work from the API user, this will simply busy-loop on
HUP events. The obvious thing to do is to exit(0) instead, while
additional or different work can be done by overriding
iface->process_msg().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
Message-Id: <20190308140454.32437-5-marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 21:22:31 -04:00
Marc-André Lureau
ba275e9d28 libvhost-user: fix clang enum-conversion warning
Now that the VhostUserMsg.request field is used for both master &
slave requests, since commit d84599f56c:

contrib/libvhost-user/libvhost-user.c:953:20: error: implicit conversion from enumeration type 'enum VhostUserSlaveRequest' to different enumeration type 'VhostUserRequest' (aka 'enum VhostUserRequest') [-Werror,-Wenum-conversion]
        .request = VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG,
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190308140454.32437-2-marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 21:22:31 -04:00
Alex Bennée
eb34fc03e2 contrib: gitdm: add a mapping for Janus Technologies
Currently this just includes Marcel who is a fairly prolific
contributor.

Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-03-12 19:31:29 +00:00
Alex Bennée
885e706052 contrib: gitdm: another IBM email
Based on Tom's LinkedIn profile his QEMU work was while in IBM's
virtualisation group.

Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-03-12 19:31:29 +00:00
Alex Bennée
7057aec21a contrib: gitdm: add more individual contributors
I know Richard's is right because I asked him in the pub. I'm guessing
Fredrik's based on the fact I vaguely remember an Atari demo. The
others I attributed to academic institutions last time I posted so
have moved them to individuals as requested.

Cc: Fredrik Noring <noring@nocrew.org>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Richard Henderson <rth@twiddle.net>
2019-03-12 19:31:29 +00:00
Aleksandar Markovic
e88a72523b contrib: gitdm: Update Wave Computing group
Add all missing MIPS/Imgtec/Wave contributors (from the inception of
QEMU).

Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-03-12 19:31:29 +00:00
Aleksandar Markovic
044f957b02 contrib: gitdm: Update domain-map
Add Citrix, Huawei, Intel, and Microsoft to domain-map.

Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
[AJB: sorted, added Fujitsu]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-03-12 19:31:29 +00:00
Viktor Prutyanov
06164cc402 contrib/elf2dmp: add kernel start address checking
Before this patch, if elf2dmp failed to find NT kernel PE magic in
allowed virtual address range, then it assumes NULL as NT kernel
address and cause segfault.

This patch fix the problem described above by checking NT kernel address
before futher processing.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20190219211936.6466-1-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-03-11 16:33:49 +01:00
Peter Maydell
3e29da9fd8 * cpu-exec fixes (Emilio, Laurent)
* TCG bugfix in queue.h (Paolo)
 * high address load for linuxboot (Zhijian)
 * PVH support (Liam, Stefano)
 * misc i386 changes (Paolo, Robert, Doug)
 * configure tweak for openpty (Thomas)
 * elf2dmp port to Windows (Viktor)
 * initial improvements to Makefile infrastructure (Yang + GSoC 2013)
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 Iw8yzEypU4Qsqy4zUyb+dppkwSLELOZ24uJVtYnV+HeTwejXD66FMhvFssw0P7kF
 VBK8L6SttYfe9ltUAsXmlLSsnYThCiV0AMclHy8U3mvA47KbBPxTR7u47UDAZSE=
 =2trt
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* cpu-exec fixes (Emilio, Laurent)
* TCG bugfix in queue.h (Paolo)
* high address load for linuxboot (Zhijian)
* PVH support (Liam, Stefano)
* misc i386 changes (Paolo, Robert, Doug)
* configure tweak for openpty (Thomas)
* elf2dmp port to Windows (Viktor)
* initial improvements to Makefile infrastructure (Yang + GSoC 2013)

# gpg: Signature made Tue 05 Feb 2019 17:34:42 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (76 commits)
  queue: fix QTAILQ_FOREACH_REVERSE_SAFE
  scsi-generic: Convert from DPRINTF() macro to trace events
  scsi-disk: Convert from DPRINTF() macro to trace events
  pc: Use hotplug_handler_(plug|unplug|unplug_request)
  i386: hvf: Fix smp boot hangs
  hw/vfio/Makefile.objs: Create new CONFIG_* variables for VFIO core and PCI
  hw/i2c/Makefile.objs: Create new CONFIG_* variables for EEPROM and ACPI controller
  hw/tricore/Makefile.objs: Create CONFIG_* for tricore
  hw/openrisc/Makefile.objs: Create CONFIG_* for openrisc
  hw/moxie/Makefile.objs: Conditionally build moxie
  hw/hppa/Makefile.objs: Create CONFIG_* for hppa
  hw/cris/Makefile.objs: Create CONFIG_* for cris
  hw/alpha/Makefile.objs: Create CONFIG_* for alpha
  hw/sparc64/Makefile.objs: Create CONFIG_* for sparc64
  hw/riscv/Makefile.objs: Create CONFIG_* for riscv boards
  hw/nios2/Makefile.objs: Conditionally build nios2
  hw/xtensa/Makefile.objs: Build xtensa_sim and xtensa_fpga conditionally
  hw/lm32/Makefile.objs: Conditionally build lm32 and milkmyst
  hw/sparc/Makefile.objs: CONFIG_* for sun4m and leon3 created
  hw/s390/Makefile.objs: Create new CONFIG_* variables for s390x boards and devices
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	qemu-deprecated.texi
2019-02-05 19:39:22 +00:00
Michael S. Tsirkin
8bafafcc29 contrib/libvhost-user: cleanup casts
Now that field types are all properly uint64_t,
drop the un-necessary cast.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-02-05 10:58:33 -05:00
Changpeng Liu
caa1ee4313 vhost-user-blk: add discard/write zeroes features support
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: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-02-05 10:58:33 -05:00
Peter Xu
a56de056c9 contrib/vhost-user-blk: fix the compilation issue
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-02-05 10:58:33 -05:00
Viktor Prutyanov
6ec6e988fb contrib/elf2dmp: fix printf format
Format strings for printf are changed for successful build for Windows
hosts.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20181220012441.13694-6-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:18 +01:00
Viktor Prutyanov
4591f4ceef contrib/elf2dmp: fix structures definitions
Remove duplicate structures definitions in case of build for Windows hosts.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20181220012441.13694-5-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:17 +01:00
Viktor Prutyanov
4ea1a21d84 contrib/elf2dmp: use GLib in PDB processing
Replace POSIX mmap with GLib g_mapped_file_new in PDB processing stage
to make elf2dmp cross-platform. There are no direct POSIX in elf2dmp
after this patch.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20181220012441.13694-4-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:17 +01:00
Viktor Prutyanov
bd4d0da7db contrib/elf2dmp: use GLib in ELF processing
Replace POSIX mmap with GLib g_mapped_file_new in ELF processing module
to make elf2dmp cross-platform.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20181220012441.13694-3-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:17 +01:00
Viktor Prutyanov
e53f3466e3 contrib/elf2dmp: fix elf.h including
Before this patch QEMU elf.h was not actually included.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-Id: <20181220012441.13694-2-viktor.prutyanov@phystech.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:17 +01:00
Michael S. Tsirkin
9174d8ad74 contrib/libvhost-user: switch to uint64_t
contrib/libvhost-user is now using __u64 which is
a long long. New linux headers will use uint64_t.

These need to be printed differently: llx versus PRIx64.

For now cast to uint64_t for portability so the change
does not break the build.

Casts will go away in the future.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-02-04 00:08:53 -05:00
Philippe Mathieu-Daudé
568c439a96 contrib/gitdm: Fix a typo
Typo comes from upstream git://git.lwn.net/gitdm.git.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <20190111155555.8270-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-24 13:34:20 +01:00
Marcel Apfelbaum
0f645ba16c contrib/rdmacm-mux: fix clang compilation
Fix Commit a5d2f6f877 (contrib/rdmacm-mux: Add implementation
                       of RDMA User MAD multiplexer).

The above commit introduces a new contrib target, adding a global dependency
to libumad library in case pvrdma configuration option is enabled.
Clang forbids it:
    clang-6.0: error: -libumad: 'linker' input unused
              [-Werror,-Wunused-command-line-argument]

Fix by limiting the scope to the rdmacm-mux target itself.

Reported-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Tested-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190118124614.24548-4-marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2019-01-19 11:01:57 +02:00
Marcel Apfelbaum
555b3d67bc hw/rdma: modify struct initialization
Do not initialize structs with {0} since some
CLANG versions do not support it.

Use {} construct instead.

Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Tested-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190118124614.24548-3-marcel.apfelbaum@gmail.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2019-01-19 11:01:33 +02:00
Marcel Apfelbaum
4a3d55a097 contrib/rdmacm-mux: remove Wno-format-truncation flag
The flag is not recognized by some CLANG versions.
Add proper constraints in code instead.

Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Tested-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190118124614.24548-2-marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2019-01-19 11:01:07 +02:00
Alex Bennée
cb8d955df7 contrib/gitdm: add another name to WaveComp map
Requested by Aleksandar.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-01-14 16:06:56 +00:00
Alex Bennée
f7329232b7 contrib/gitdm: add two more IBM'ers to group-map-ibm
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-01-14 16:06:56 +00:00
Joel Stanley
843c14831f contrib/gitdm: Add other IBMers
Here are some IBMers who use their personal addresses when submitting
patches.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-01-14 16:06:56 +00:00
Alex Bennée
3f209fc7c4 contrib/gitdm: add Nokia and Proxmox to the domain-map
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2019-01-14 16:06:56 +00:00
Paolo Bonzini
7d37435bd5 avoid TABs in files that only contain a few
Most files that have TABs only contain a handful of them.  Change
them to spaces so that we don't confuse people.

disas, standard-headers, linux-headers and libdecnumber are imported
from other projects and probably should be exempted from the check.
Outside those, after this patch the following files still contain both
8-space and TAB sequences at the beginning of the line.  Many of them
have a majority of TABs, or were initially committed with all tabs.

    bsd-user/i386/target_syscall.h
    bsd-user/x86_64/target_syscall.h
    crypto/aes.c
    hw/audio/fmopl.c
    hw/audio/fmopl.h
    hw/block/tc58128.c
    hw/display/cirrus_vga.c
    hw/display/xenfb.c
    hw/dma/etraxfs_dma.c
    hw/intc/sh_intc.c
    hw/misc/mst_fpga.c
    hw/net/pcnet.c
    hw/sh4/sh7750.c
    hw/timer/m48t59.c
    hw/timer/sh_timer.c
    include/crypto/aes.h
    include/disas/bfd.h
    include/hw/sh4/sh.h
    libdecnumber/decNumber.c
    linux-headers/asm-generic/unistd.h
    linux-headers/linux/kvm.h
    linux-user/alpha/target_syscall.h
    linux-user/arm/nwfpe/double_cpdo.c
    linux-user/arm/nwfpe/fpa11_cpdt.c
    linux-user/arm/nwfpe/fpa11_cprt.c
    linux-user/arm/nwfpe/fpa11.h
    linux-user/flat.h
    linux-user/flatload.c
    linux-user/i386/target_syscall.h
    linux-user/ppc/target_syscall.h
    linux-user/sparc/target_syscall.h
    linux-user/syscall.c
    linux-user/syscall_defs.h
    linux-user/x86_64/target_syscall.h
    slirp/cksum.c
    slirp/if.c
    slirp/ip.h
    slirp/ip_icmp.c
    slirp/ip_icmp.h
    slirp/ip_input.c
    slirp/ip_output.c
    slirp/mbuf.c
    slirp/misc.c
    slirp/sbuf.c
    slirp/socket.c
    slirp/socket.h
    slirp/tcp_input.c
    slirp/tcpip.h
    slirp/tcp_output.c
    slirp/tcp_subr.c
    slirp/tcp_timer.c
    slirp/tftp.c
    slirp/udp.c
    slirp/udp.h
    target/cris/cpu.h
    target/cris/mmu.c
    target/cris/op_helper.c
    target/sh4/helper.c
    target/sh4/op_helper.c
    target/sh4/translate.c
    tcg/sparc/tcg-target.inc.c
    tests/tcg/cris/check_addo.c
    tests/tcg/cris/check_moveq.c
    tests/tcg/cris/check_swap.c
    tests/tcg/multiarch/test-mmap.c
    ui/vnc-enc-hextile-template.h
    ui/vnc-enc-zywrle.h
    util/envlist.c
    util/readline.c

The following have only TABs:

    bsd-user/i386/target_signal.h
    bsd-user/sparc64/target_signal.h
    bsd-user/sparc64/target_syscall.h
    bsd-user/sparc/target_signal.h
    bsd-user/sparc/target_syscall.h
    bsd-user/x86_64/target_signal.h
    crypto/desrfb.c
    hw/audio/intel-hda-defs.h
    hw/core/uboot_image.h
    hw/sh4/sh7750_regnames.c
    hw/sh4/sh7750_regs.h
    include/hw/cris/etraxfs_dma.h
    linux-user/alpha/termbits.h
    linux-user/arm/nwfpe/fpopcode.h
    linux-user/arm/nwfpe/fpsr.h
    linux-user/arm/syscall_nr.h
    linux-user/arm/target_signal.h
    linux-user/cris/target_signal.h
    linux-user/i386/target_signal.h
    linux-user/linux_loop.h
    linux-user/m68k/target_signal.h
    linux-user/microblaze/target_signal.h
    linux-user/mips64/target_signal.h
    linux-user/mips/target_signal.h
    linux-user/mips/target_syscall.h
    linux-user/mips/termbits.h
    linux-user/ppc/target_signal.h
    linux-user/sh4/target_signal.h
    linux-user/sh4/termbits.h
    linux-user/sparc64/target_syscall.h
    linux-user/sparc/target_signal.h
    linux-user/x86_64/target_signal.h
    linux-user/x86_64/termbits.h
    pc-bios/optionrom/optionrom.h
    slirp/mbuf.h
    slirp/misc.h
    slirp/sbuf.h
    slirp/tcp.h
    slirp/tcp_timer.h
    slirp/tcp_var.h
    target/i386/svm.h
    target/sparc/asi.h
    target/xtensa/core-dc232b/xtensa-modules.inc.c
    target/xtensa/core-dc233c/xtensa-modules.inc.c
    target/xtensa/core-de212/core-isa.h
    target/xtensa/core-de212/xtensa-modules.inc.c
    target/xtensa/core-fsf/xtensa-modules.inc.c
    target/xtensa/core-sample_controller/core-isa.h
    target/xtensa/core-sample_controller/xtensa-modules.inc.c
    target/xtensa/core-test_kc705_be/core-isa.h
    target/xtensa/core-test_kc705_be/xtensa-modules.inc.c
    tests/tcg/cris/check_abs.c
    tests/tcg/cris/check_addc.c
    tests/tcg/cris/check_addcm.c
    tests/tcg/cris/check_addoq.c
    tests/tcg/cris/check_bound.c
    tests/tcg/cris/check_ftag.c
    tests/tcg/cris/check_int64.c
    tests/tcg/cris/check_lz.c
    tests/tcg/cris/check_openpf5.c
    tests/tcg/cris/check_sigalrm.c
    tests/tcg/cris/crisutils.h
    tests/tcg/cris/sys.c
    tests/tcg/i386/test-i386-ssse3.c
    ui/vgafont.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181213223737.11793-3-pbonzini@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:56 +01:00
Paolo Bonzini
b58deb344d qemu/queue.h: leave head structs anonymous unless necessary
Most list head structs need not be given a name.  In most cases the
name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV
or reverse iteration, but this does not apply to lists of other kinds,
and even for QTAILQ in practice this is only rarely needed.  In addition,
we will soon reimplement those macros completely so that they do not
need a name for the head struct.  So clean up everything, not giving a
name except in the rare case where it is necessary.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:55 +01:00
Yuval Shaia
a5d2f6f877 contrib/rdmacm-mux: Add implementation of RDMA User MAD multiplexer
RDMA MAD kernel module (ibcm) disallow more than one MAD-agent for a
given MAD class.
This does not go hand-by-hand with qemu pvrdma device's requirements
where each VM is MAD agent.
Fix it by adding implementation of RDMA MAD multiplexer service which on
one hand register as a sole MAD agent with the kernel module and on the
other hand gives service to more than one VM.

Design Overview:
Reviewed-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
----------------
A server process is registered to UMAD framework (for this to work the
rdma_cm kernel module needs to be unloaded) and creates a unix socket to
listen to incoming request from clients.
A client process (such as QEMU) connects to this unix socket and
registers with its own GID.

TX:
----
When client needs to send rdma_cm MAD message it construct it the same
way as without this multiplexer, i.e. creates a umad packet but this
time it writes its content to the socket instead of calling umad_send().
The server, upon receiving such a message fetch local_comm_id from it so
a context for this session can be maintain and relay the message to UMAD
layer by calling umad_send().

RX:
----
The server creates a worker thread to process incoming rdma_cm MAD
messages. When an incoming message arrived (umad_recv()) the server,
depending on the message type (attr_id) looks for target client by
either searching in gid->fd table or in local_comm_id->fd table. With
the extracted fd the server relays to incoming message to the client.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
2018-12-22 11:09:56 +02:00
Markus Armbruster
b7d89466dd Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes, with the changes
to the following files manually reverted:

    contrib/libvhost-user/libvhost-user-glib.h
    contrib/libvhost-user/libvhost-user.c
    contrib/libvhost-user/libvhost-user.h
    linux-user/mips64/cpu_loop.c
    linux-user/mips64/signal.c
    linux-user/sparc64/cpu_loop.c
    linux-user/sparc64/signal.c
    linux-user/x86_64/cpu_loop.c
    linux-user/x86_64/signal.c
    target/s390x/gen-features.c
    tests/migration/s390x/a-b-bios.c
    tests/test-rcu-simpleq.c
    tests/test-rcu-tailq.c

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181204172535.2799-1-armbru@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Yuval Shaia <yuval.shaia@oracle.com>
Acked-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
2018-12-20 10:29:08 +01:00
Alex Bennée
2f28271d80 contrib: add a basic gitdm config
This is a QEMU specific version of a gitdm config for generating
reports on the contributor base of the project. I've added enough
group maps and domain aliases to ensure the current top ten is as
reflective as it can be. As of this commit running:

  git log --numstat --since "Last Year" | gitdm -n -l 10

Reports:

  Top changeset contributors by employer
  Red Hat                   3172 (44.3%)
  Linaro                    1153 (16.1%)
  (None)                     549 (7.7%)
  IBM                        348 (4.9%)
  Academics (various)        170 (2.4%)
  Virtuozzo                  168 (2.3%)
  Wave Computing             118 (1.6%)
  Xilinx                     102 (1.4%)
  Igalia                      93 (1.3%)
  Cadence Design Systems      88 (1.2%)

  Top lines changed by employer
  Red Hat                   144092 (28.1%)
  Cadence Design Systems    126554 (24.6%)
  Linaro                    77480 (15.1%)
  Wave Computing            33134 (6.5%)
  SiFive                    14392 (2.8%)
  IBM                       12219 (2.4%)
  (None)                    11948 (2.3%)
  Academics (various)       10447 (2.0%)
  Virtuozzo                 10445 (2.0%)
  CodeWeavers               9179 (1.8%)

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-12-17 08:25:10 +00:00
Viktor Prutyanov
3fa2d384c2 contrib: add elf2dmp tool
elf2dmp is a converter from ELF dump (produced by 'dump-guest-memory') to
Windows MEMORY.DMP format (also know as 'Complete Memory Dump') which can be
opened in WinDbg.

This tool can help if VMCoreInfo device/driver is absent in Windows VM and
'dump-guest-memory -w' is not available but dump can be created in ELF format.

The tool works as follows:
1. Determine the system paging root looking at GS_BASE or KERNEL_GS_BASE
to locate the PRCB structure and finds the kernel CR3 nearby if QEMU CPU
state CR3 is not suitable.
2. Find an address within the kernel image by dereferencing the first
IDT entry and scans virtual memory upwards until the start of the
kernel.
3. Download a PDB matching the kernel from the Microsoft symbol store,
and figure out the layout of certain relevant structures necessary for
the dump.
4. Populate the corresponding structures in the memory image and create
the appropriate dump header.

Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com>
Message-Id: <1535546488-30208-3-git-send-email-viktor.prutyanov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 19:09:12 +02:00
Changpeng Liu
25b1d45a19 vhost-blk: turn on pre-defined RO feature bit
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 <changpeng.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-06-01 19:20:38 +03:00
Tiwei Bie
d84599f56c libvhost-user: support host notifier
This patch introduces the host notifier support in
libvhost-user. A new API is added to support setting
host notifier for each queue.

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-05-24 21:14:11 +03:00
Changpeng Liu
7d405b2ffb contrib/vhost-user-blk: enable protocol feature for vhost-user-blk
This patch reports the protocol feature that is only advertised by
QEMU if the device implements the config ops.

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-05-23 17:02:03 +03:00
Dr. David Alan Gilbert
e3638151da libvhost-user: Send messages with no data
The response to a VHOST_USER_POSTCOPY_ADVISE contains a fd but doesn't
actually contain any data.   FIx vu_message_write so that it doesn't
do a 0-byte write() call, since this was ending up with rc=0
that was confusing the error handling code.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-05-23 17:02:02 +03:00
Changpeng Liu
ea3e6f5a93 contrib/libvhost-user: add the protocol feature used for SET/GET message
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-04-09 17:35:46 +03:00
Dr. David Alan Gilbert
4275cd99c6 libvhost-user: Claim support for postcopy
Tell QEMU we understand the protocol features needed for postcopy.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 16:40:37 +02:00
Dr. David Alan Gilbert
c639187e33 vhost-user: Add VHOST_USER_POSTCOPY_END message
This message is sent just before the end of postcopy to get the
client to stop using userfault since we wont respond to any more
requests.  It should close userfaultfd so that any other pages
get mapped to the backing file automatically by the kernel, since
at this point we know we've received everything.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 16:40:37 +02:00
Dr. David Alan Gilbert
0185cfb30b libvhost-user: mprotect & madvises for postcopy
Clear the area and turn off THP.
PROT_NONE the area until after we've userfault advised it
to catch any unexpected changes.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 16:40:37 +02:00
Dr. David Alan Gilbert
9bb3801994 vhost+postcopy: Send address back to qemu
We need a better way, but at the moment we need the address of the
mappings sent back to qemu so it can interpret the messages on the
userfaultfd it reads.

This is done as a 3 stage set:
   QEMU -> client
      set_mem_table

   mmap stuff, get addresses

   client -> qemu
       here are the addresses

   qemu -> client
       OK - now you can use them

That ensures that qemu has registered the new addresses in it's
userfault code before the client starts accessing them.

Note: We don't ask for the default 'ack' reply since we've got our own.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:28 +02:00
Dr. David Alan Gilbert
51a5d6e5b2 libvhost-user+postcopy: Register new regions with the ufd
When new regions are sent to the client using SET_MEM_TABLE, register
them with the userfaultfd.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:28 +02:00
Dr. David Alan Gilbert
55d754b307 postcopy+vhost-user: Split set_mem_table for postcopy
Split the set_mem_table routines in both qemu and libvhost-user
because the postcopy versions are going to be quite different
once changes in the later patches are added. However, this patch
doesn't produce any functional change, just the split.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:28 +02:00
Dr. David Alan Gilbert
6864a7b5ac vhost+postcopy: Transmit 'listen' to slave
Notify the vhost-user slave on reception of the 'postcopy-listen'
event from the source.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:28 +02:00
Dr. David Alan Gilbert
2a84ffc0be libvhost-user: Open userfaultfd
Open a userfaultfd (on a postcopy_advise) and send it back in
the reply to the qemu for it to monitor.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:27 +02:00
Dr. David Alan Gilbert
d6e47717b0 libvhost-user: Support sending fds back to qemu
Allow replies with fds (for postcopy)

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:27 +02:00
Dr. David Alan Gilbert
d3dff7a5a1 vhost-user: Add 'VHOST_USER_POSTCOPY_ADVISE' message
Wire up a notifier to send a VHOST_USER_POSTCOPY_ADVISE
message on an incoming advise.

Later patches will fill in the behaviour/contents of the
message.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:27 +02:00
Dr. David Alan Gilbert
9ccbfe14dd postcopy: Add vhost-user flag for postcopy and check it
Add a vhost feature flag for postcopy support, and
use the postcopy notifier to check it before allowing postcopy.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 05:03:27 +02:00
Peter Maydell
b734ed9de1 virtio,vhost,pci,pc: features, fixes and cleanups
- new stats in virtio balloon
 - virtio eventfd rework for boot speedup
 - vhost memory rework for boot speedup
 - fixes and cleanups all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,vhost,pci,pc: features, fixes and cleanups

- new stats in virtio balloon
- virtio eventfd rework for boot speedup
- vhost memory rework for boot speedup
- fixes and cleanups all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 13 Feb 2018 16:29:55 GMT
# 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: (22 commits)
  virtio-balloon: include statistics of disk/file caches
  acpi-test: update FADT
  lpc: drop pcie host dependency
  tests: acpi: fix FADT not being compared to reference table
  hw/pci-bridge: fix pcie root port's IO hints capability
  libvhost-user: Support across-memory-boundary access
  libvhost-user: Fix resource leak
  virtio-balloon: unref the memory region before continuing
  pci: removed the is_express field since a uniform interface was inserted
  virtio-blk: enable multiple vectors when using multiple I/O queues
  pci/bus: let it has higher migration priority
  pci-bridge/i82801b11: clear bridge registers on platform reset
  vhost: Move log_dirty check
  vhost: Merge and delete unused callbacks
  vhost: Clean out old vhost_set_memory and friends
  vhost: Regenerate region list from changed sections list
  vhost: Merge sections added to temporary list
  vhost: Simplify ring verification checks
  vhost: Build temporary section list and deref after commit
  virtio: improve virtio devices initialization time
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13 16:33:31 +00:00
Yongji Xie
293084a719 libvhost-user: Support across-memory-boundary access
The sg list/indirect descriptor table may be contigious
in GPA but not in HVA address space. But libvhost-user
wasn't aware of that. This would cause out-of-bounds
access. Even a malicious guest could use it to get
information from the vhost-user backend.

Introduce a plen parameter in vu_gpa_to_va() so we can
handle this case, returning the actual mapped length.

Signed-off-by: Yongji Xie <xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2018-02-13 18:25:48 +02:00
Yongji Xie
bb102d1da1 libvhost-user: Fix resource leak
Free the mmaped memory when we need to mmap new memory
space on vu_set_mem_table_exec() and vu_set_log_base_exec() to
avoid memory leak.

Also close the corresponding fd after mmap() on
vu_set_log_base_exec() to avoid fd leak.

Signed-off-by: Yongji Xie <xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2018-02-13 18:25:48 +02:00
Markus Armbruster
922a01a013 Move include qemu/option.h from qemu-common.h to actual users
qemu-common.h includes qemu/option.h, but most places that include the
former don't actually need the latter.  Drop the include, and add it
to the places that actually need it.

While there, drop superfluous includes of both headers, and
separate #include from file comment with a blank line.

This cleanup makes the number of objects depending on qemu/option.h
drop from 4545 (out of 4743) to 284 in my "build everything" tree.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-20-armbru@redhat.com>
[Semantic conflict with commit bdd6a90a9e in block/nvme.c resolved]
2018-02-09 13:52:16 +01:00
Markus Armbruster
d8e39b7062 Use #include "..." for our own headers, <...> for others
System headers should be included with <...>, our own headers with
"...".  Offenders tracked down with an ugly, brittle and probably
buggy Perl script.  Previous iteration was commit a9c94277f0.

Delete inclusions of "string.h" and "strings.h" instead of fixing them
to <string.h> and <strings.h>, because we always include these via
osdep.h.

Put the cleaned up system header includes first.

While there, separate #include from file comment with exactly one
blank line.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-2-armbru@redhat.com>
2018-02-09 05:05:11 +01:00
Changpeng Liu
406d2aa2cc contrib/vhost-user-blk: introduce a vhost-user-blk sample application
This commit introduces a vhost-user-blk backend device, it uses UNIX
domain socket to communicate with QEMU. The vhost-user-blk sample
application should be used with QEMU vhost-user-blk-pci device.

To use it, complie with:
make vhost-user-blk

and start like this:
vhost-user-blk -b /dev/sdb -s /path/vhost.socket

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-01-18 21:52:37 +02:00
Changpeng Liu
0bc24d831e contrib/libvhost-user: enable virtio config space messages
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 <changpeng.liu@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-01-18 21:52:37 +02:00
Paolo Bonzini
2ba60ec175 contrib: add systemd unit files
This lets distros standardize on how QEMU should install systemd
services for qemu-ga and qemu-pr-helper.

The qemu-ga unit file comes from Fedora, but I checked that
Debian is using the same path for the virtio-serisal port.

I would like to include this in 2.11, so that the qemu-pr-helper
socket can be standardized across distros.  Note however that
the files are not installed.  We can add a configure option
in 2.12 perhaps, but it's too late now; documenting the files
in the release notes should do.

Suggested-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20171124164422.3960-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-12-20 22:29:26 +01:00
Dr. David Alan Gilbert
13384f158c libvhost-user: Support VHOST_USER_SET_SLAVE_REQ_FD
Allow the qemu to pass us a slave fd.  We don't do anything
with it yet.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20171002191521.15748-5-dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2017-10-12 16:57:50 +02:00
Dr. David Alan Gilbert
ea642e22ca libvhost-user: Update and fix feature and request lists
Update the ProtocolFeature and UserRequest lists to
match hw/virtio/vhost-user.c.
Fix the text labelling in libvhost-user.c to match the list.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20171002191521.15748-4-dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2017-10-12 16:57:46 +02:00
Dr. David Alan Gilbert
bcf0836d0f libvhost-user: vu_queue_started
Add a vu_queue_started method to complement vu_queue_enabled.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20171002191521.15748-2-dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2017-10-12 16:57:36 +02:00
Marc-André Lureau
53a2e1b523 vhost-user-scsi: remove server_sock from VusDev
It is unneeded in the VusDev device structure, and also simplify a bit
the code.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
62ddfba034 vhost-user-scsi: use libvhost-user glib helper
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
8bb7ddb78a libvhost-user: add glib source helper
This file implements a bridge from the vu_init API of libvhost-user to
GSource, so that libvhost-user can be used inside a GLib main loop.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
422a26872e vhost-user-scsi: use glib logging
- PLOG is unused
- code is compiled out unless debug is enabled
- logging is too verbose
- you can pipe to ts to have timestamp if needed, or use structured
  logging with more recent glib

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
7fb5a569a4 vhost-user-scsi: simplify source handling
Using a hashtable.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
3e7bd3ad47 vhost-user-scsi: drop extra callback pointer
Use the one from the source with casting, like any other glib source.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
49a4882438 vhost-user-scsi: don't copy iscsi/scsi-lowlevel.h
There is no need to include hw/virtio/virtio-scsi.h, then the conflict
with SCSI_XFER enum goes away.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
ca853813f7 vhost-user-scsi: avoid use of iscsi_ namespace
It is confusing and could easily conflict with future versions.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
ade9ab222e vhost-user-scsi: rename VUS types
- use Vus prefix consistently
- use CamelCase, since that's glib & libvhost-user style
- avoid _t postfix, usually for system headers

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
c7226ee77f vhost-user-scsi: remove unimplemented functions
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
d0dba9f4e7 vhost-user-scsi: remove VUS_MAX_LUNS
There is no code to support more than 1 yet, no need for that today.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
a755d271d8 vhost-user-scsi: remove vdev_scsi_add_iscsi_lun()
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
fa2cd143bf vhost-user-scsi: assert() in iscsi_add_lun()
Instead of a preliminary check, add an assert to the function that has
the pre-condition.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
689a9945e6 vhost-user-scsi: use NULL pointer
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
245792ddb7 vhost-user-scsi: simplify unix path cleanup
Always remove the unix path when leaving the program (instead of when
freeing scsi_dev). Note that unix_sock_new() also unlink() exisiting
path before creating the socket.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
4309251a8c vhost-user-scsi: remove vdev_scsi_find_by_vu()
The *dev pointer belongs to the vhost_scsi_dev_t parent.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
9a6903dbe3 vhost-user-scsi: also free the gtree
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
b4fe56e9ed vhost-user-scsi: glib calls that allocate don't return NULL
They abort instead, so get rid of failure conditions.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
3d9ad8be3d vhost-user-scsi: use glib allocation
Use g_new/g_free instead of plain malloc. This simplify a bit memory
handling since glib will abort if it cannot allocate.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:09 +02:00
Marc-André Lureau
8c36ed6e02 vhost-user-scsi: code style fixes
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-10-10 23:31:08 +02:00