Commit graph

7402 commits

Author SHA1 Message Date
Gerd Hoffmann
c19f4fbce1 virtio-gpu: move virtio_gpu_gl_block
Move to virtio-gpu-3d.c where all the other virgl code lives too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20170505104101.30589-2-kraxel@redhat.com
2017-05-12 12:02:48 +02:00
Igor Mammedov
1171ae9a5b numa: remove node_cpu bitmaps as they are no longer used
Postfactum "CPU(s) present in multiple NUMA nodes" check
was the last user of node_cpu bitmaps, but it's not need
as machine_set_cpu_numa_node() does the similar check at
the time mapping is set for cpus (i.e. when -numa cpus=
is parsed) and ensures that cpu can be mapped only to
one node.

Remove duplicate check based on node_cpu bitmaps and
since the last user is gone remove node_cpu as well,
which completes internal transition from legacy bitmap
based mapping storage to possible_cpus storage.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1494415802-227633-17-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:50 -03:00
Igor Mammedov
482dfe9a9e machine: call machine init from wrapper
add machine_run_board_init() wrapper that calls machine
init for now but in follow up patches it will be used
to run generic machine code that should run before
machine init.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1494415802-227633-15-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:50 -03:00
Igor Mammedov
3b8a8557f7 numa: remove no longer need numa_post_machine_init()
CPUState::numa_node is still in use but now it's set by
board when it creates CPU objects. So there isn't any
need to set it again after all CPU's are created,
since it's been already set.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1494415802-227633-14-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:50 -03:00
Igor Mammedov
7c88e65d9e numa: mirror cpu to node mapping in MachineState::possible_cpus
Introduce machine_set_cpu_numa_node() helper that stores
node mapping for CPU in MachineState::possible_cpus.
CPU and node it belongs to is specified by 'props' argument.

Patch doesn't remove old way of storing mapping in
numa_info[X].node_cpu as removing it at the same time
makes patch rather big. Instead it just mirrors mapping
in possible_cpus and follow up per target patches will
switch to possible_cpus and numa_info[X].node_cpu will
be removed once there isn't any users left.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1494415802-227633-7-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:49 -03:00
Igor Mammedov
0b8497f08c spapr: add node-id property to sPAPR core
it will allow switching from cpu_index to core based numa
mapping in follow up patches.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <1494415802-227633-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:48 -03:00
Igor Mammedov
ea089eebbd numa: move source of default CPUs to NUMA node mapping into boards
Originally CPU threads were by default assigned in
round-robin fashion. However it was causing issues in
guest since CPU threads from the same socket/core could
be placed on different NUMA nodes.
Commit fb43b73b (pc: fix default VCPU to NUMA node mapping)
fixed it by grouping threads within a socket on the same node
introducing cpu_index_to_socket_id() callback and commit
20bb648d (spapr: Fix default NUMA node allocation for threads)
reused callback to fix similar issues for SPAPR machine
even though socket doesn't make much sense there.

As result QEMU ended up having 3 default distribution rules
used by 3 targets /virt-arm, spapr, pc/.

In effort of moving NUMA mapping for CPUs into possible_cpus,
generalize default mapping in numa.c by making boards decide
on default mapping and let them explicitly tell generic
numa code to which node a CPU thread belongs to by replacing
cpu_index_to_socket_id() with @cpu_index_to_instance_props()
which provides default node_id assigned by board to specified
cpu_index.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1494415802-227633-2-git-send-email-imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:48 -03:00
Laurent Vivier
3bfe57165b numa: equally distribute memory on nodes
When there are more nodes than available memory to put the minimum
allowed memory by node, all the memory is put on the last node.

This is because we put (ram_size / nb_numa_nodes) &
~((1 << mc->numa_mem_align_shift) - 1); on each node, and in this
case the value is 0. This is particularly true with pseries,
as the memory must be aligned to 256MB.

To avoid this problem, this patch uses an error diffusion algorithm [1]
to distribute equally the memory on nodes.

We introduce numa_auto_assign_ram() function in MachineClass
to keep compatibility between machine type versions.
The legacy function is used with pseries-2.9, pc-q35-2.9 and
pc-i440fx-2.9 (and previous), the new one with all others.

Example:

qemu-system-ppc64 -S -nographic  -nodefaults -monitor stdio -m 1G -smp 8 \
                  -numa node -numa node -numa node \
                  -numa node -numa node -numa node

Before:

(qemu) info numa
6 nodes
node 0 cpus: 0 6
node 0 size: 0 MB
node 1 cpus: 1 7
node 1 size: 0 MB
node 2 cpus: 2
node 2 size: 0 MB
node 3 cpus: 3
node 3 size: 0 MB
node 4 cpus: 4
node 4 size: 0 MB
node 5 cpus: 5
node 5 size: 1024 MB

After:
(qemu) info numa
6 nodes
node 0 cpus: 0 6
node 0 size: 0 MB
node 1 cpus: 1 7
node 1 size: 256 MB
node 2 cpus: 2
node 2 size: 0 MB
node 3 cpus: 3
node 3 size: 256 MB
node 4 cpus: 4
node 4 size: 256 MB
node 5 cpus: 5
node 5 size: 256 MB

[1] https://en.wikipedia.org/wiki/Error_diffusion

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20170502162955.1610-2-lvivier@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: s/ram_size/size/ at numa_default_auto_assign_ram()]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:47 -03:00
He Chen
0f203430dd numa: Allow setting NUMA distance for different NUMA nodes
This patch is going to add SLIT table support in QEMU, and provides
additional option `dist` for command `-numa` to allow user set vNUMA
distance by QEMU command.

With this patch, when a user wants to create a guest that contains
several vNUMA nodes and also wants to set distance among those nodes,
the QEMU command would like:

```
-numa node,nodeid=0,cpus=0 \
-numa node,nodeid=1,cpus=1 \
-numa node,nodeid=2,cpus=2 \
-numa node,nodeid=3,cpus=3 \
-numa dist,src=0,dst=1,val=21 \
-numa dist,src=0,dst=2,val=31 \
-numa dist,src=0,dst=3,val=41 \
-numa dist,src=1,dst=2,val=21 \
-numa dist,src=1,dst=3,val=31 \
-numa dist,src=2,dst=3,val=21 \
```

Signed-off-by: He Chen <he.chen@linux.intel.com>
Message-Id: <1493260558-20728-1-git-send-email-he.chen@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-11 16:08:37 -03:00
Eric Blake
4c41cb4955 block: Update comments on BDRV_BLOCK_* meanings
We had some conflicting documentation: a nice 8-way table that
described all possible combinations of DATA, ZERO, and
OFFSET_VALID, contrasted with text that implied that OFFSET_VALID
always meant raw data could be read directly.  Furthermore, the
text refers a lot to bs->file, even though the interface was
updated back in 67a0fd2a to let the driver pass back a specific
BDS (not necessarily bs->file).  As the 8-way table is the
intended semantics, simplify the rest of the text to get rid of
the confusion.

ALLOCATED is always set by the block layer for convenience (drivers
do not have to worry about it).  RAW is used only internally, but
by more than the raw driver.  Document these additional items on
the driver callback.

Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170507000552.20847-4-eblake@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-05-11 14:28:06 +02:00
Kevin Wolf
9c5e6594f1 block: Fix write/resize permissions for inactive images
Format drivers for inactive nodes don't need write/resize permissions on
their bs->file and can share write/resize with another VM (in fact, this
is the whole point of keeping images inactive). Represent this fact in
the op blocker system, so that image locking does the right thing
without special-casing inactive images.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-11 12:08:24 +02:00
Kevin Wolf
cfa1a5723f block: Drop permissions when migration completes
With image locking, permissions affect other qemu processes as well. We
want to be sure that the destination can run, so let's drop permissions
on the source when migration completes.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-11 12:08:24 +02:00
Kevin Wolf
4417ab7adf block: New BdrvChildRole.activate() for blk_resume_after_migration()
Instead of manually calling blk_resume_after_migration() in migration
code after doing bdrv_invalidate_cache_all(), integrate the BlockBackend
activation with cache invalidation into a single function. This is
achieved with a new callback in BdrvChildRole that is called by
bdrv_invalidate_cache_all().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-11 12:08:24 +02:00
Fam Zheng
13461fdba6 osdep: Add qemu_lock_fd and qemu_unlock_fd
They are wrappers of POSIX fcntl "file private locking", with a
convenient "try lock" wrapper implemented with F_OFD_GETLK.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-11 11:15:32 +02:00
Fam Zheng
5a9347c673 block: Add, parse and store "force-share" option
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-11 11:02:38 +02:00
Fam Zheng
5176196c32 block: Make bdrv_perm_names public
It can be used outside of block.c for making user friendly messages.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-11 11:02:38 +02:00
Philippe Voinov
9cfa7ab939 ui: Support non-zero minimum values for absolute input axes
This patch refactors ui/input.c to support absolute axis
minimum values other than 0. All dependent calls to qemu_input_queue_abs
have been updated to explicitly supply 0 as the axis minimum value.

Signed-off-by: Philippe Voinov <philippevoinov@gmail.com>
Message-id: 20170505133952.29885-1-philippevoinov@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-05-11 09:42:16 +02:00
David Gibson
eaf87a3976 pnv: Fix build failures on some host platforms
This makes some changes to fix build failures on the 'min-glib' docker
image, and maybe other platforms with a buildchain that's less tolerant
about duplicated typedefs.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-05-11 09:45:15 +10:00
Paolo Bonzini
5c6b487d67 ppc: xics: fix compilation with CentOS 6
The PowerPCCPU typedef is included twice if a file includes
both hw/ppc/xics.h and target/ppc/cpu-qom.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-05-11 09:45:15 +10:00
Sam Bobroff
229e16fd24 ppc/xics: preserve P and Q bits for KVM IRQs
Kernel commit 17d48610ae0f ("KVM: PPC: Book 3S: XICS: Implement ICS
P/Q states") added new bits to the state used by KVM IRQs. Currently,
QEMU does not preserve these bits, so migrating (or otherwise saving
and restoring) the guest state causes the P and Q bits to be cleared.

Clearing the P bit has no effect, because the kernel will set it based
on other data, but the loss of a set Q bit will cause a lost
interrupt.

This patch preserves the P and Q bits, correcting the problem.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-05-11 09:45:15 +10:00
Michael S. Tsirkin
8b12e48950 acpi-defs: clean up open brace usage
patchew has been saying:
ERROR: open brace '{' following struct go on the same line

Fix up acpi-defs.h to follow this rule.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-05-10 22:04:23 +03:00
Peter Xu
465238d9f8 pc: add 2.10 machine type
CC: "Michael S. Tsirkin" <mst@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-05-10 22:04:23 +03:00
Igor Mammedov
98e753a6e5 pc/fwcfg: unbreak migration from qemu-2.5 and qemu-2.6 during firmware boot
Since 2.7 commit (b2a575a Add optionrom compatible with fw_cfg DMA version)
regressed migration during firmware exection time by
abusing fwcfg.dma_enabled property to decide loading
dma version of option rom AND by mistake disabling DMA
for 2.6 and earlier globally instead of only for option rom.

so 2.6 machine type guest is broken when it already runs
firmware in DMA mode but migrated to qemu-2.7(pc-2.6)
at that time;

a) qemu-2.6:pc2.6 (fwcfg.dma=on,firmware=dma,oprom=ioport)
b) qemu-2.7:pc2.6 (fwcfg.dma=off,firmware=ioport,oprom=ioport)

  to:   a     b
from
a       OK   FAIL
b       OK   OK

So we currently have broken forward migration from
qemu-2.6 to qemu-2.[789] that however could be fixed
for 2.10 by re-enabling DMA for 2.[56] machine types
and allowing dma capable option rom only since 2.7.
As result qemu should end up with:

c) qemu-2.10:pc2.6 (fwcfg.dma=on,firmware=dma,oprom=ioport)

   to:  a     b    c
from
a      OK   FAIL  OK
b      OK   OK    OK
c      OK   FAIL  OK

where forward migration from qemu-2.6 to qemu-2.10 should
work again leaving only qemu-2.[789]:pc-2.6 broken.

Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Analyzed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-05-10 22:04:23 +03:00
Ard Biesheuvel
cb51ac2ffe hw/arm/virt: generate 64-bit addressable ACPI objects
Our current ACPI table generation code limits the placement of ACPI
tables to 32-bit addressable memory, in order to be able to emit the
root pointer (RSDP) and root table (RSDT) using table types from the
ACPI 1.0 days.

Since ARM was not supported by ACPI before version 5.0, it makes sense
to lift this restriction. This is not crucial for mach-virt, which is
guaranteed to have some memory available below the 4 GB mark, but it
is a nice to have for QEMU machines that do not have any 32-bit
addressable memory, which is not uncommon for real world 64-bit ARM
systems.

Since we already emit a version of the RSDP root pointer that has a
secondary 64-bit wide address field for the 64-bit root table (XSDT),
all we need to do is replace the RSDT generation with the generation
of an XSDT table, and use a different slot in the FADT table to refer
to the DSDT.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
2017-05-10 22:04:23 +03:00
Ard Biesheuvel
5ee8534731 hw/acpi-defs: replace leading X with x_ in FADT field names
At the request of Michael, replace the leading capital X in the FADT
field name Xfacs and Xdsdt with lower case x + underscore.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-05-10 22:04:23 +03:00
Stefan Hajnoczi
f465706e59 trivial patches for 2017-05-10
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 =AAfU
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Merge remote-tracking branch 'mjt/tags/trivial-patches-fetch' into staging

trivial patches for 2017-05-10

# gpg: Signature made Wed 10 May 2017 03:19:30 AM EDT
# gpg:                using RSA key 0x701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* mjt/tags/trivial-patches-fetch: (23 commits)
  tests: Remove redundant assignment
  MAINTAINERS: Update paths for AioContext implementation
  MAINTAINERS: Update paths for main loop
  jazz_led: fix bad snprintf
  tests: Ignore another built executable (test-hmp)
  scripts: Switch to more portable Perl shebang
  scripts/qemu-binfmt-conf.sh: Fix shell portability issue
  virtfs: allow a device id to be specified in the -virtfs option
  hw/core/generic-loader: Fix crash when running without CPU
  virtio-blk: Remove useless condition around g_free()
  qemu-doc: Fix broken URLs of amnhltm.zip and dosidle210.zip
  use _Static_assert in QEMU_BUILD_BUG_ON
  channel-file: fix wrong parameter comments
  block: Make 'replication_state' an enum
  util: Use g_malloc/g_free in envlist.c
  qga: fix compiler warnings (clang 5)
  device_tree: fix compiler warnings (clang 5)
  usb-ccid: make ccid_write_data_block() cope with null buffers
  tests: Ignore more test executables
  Add 'none' as type for drive's if option
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-10 12:31:19 -04:00
Stefan Hajnoczi
1effe6ad5e Merge qcrypto 2017/05/09 v1
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 =R5f2
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'danpb/tags/pull-qcrypto-2017-05-09-1' into staging

Merge qcrypto 2017/05/09 v1

# gpg: Signature made Tue 09 May 2017 09:43:47 AM EDT
# gpg:                using RSA key 0xBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>"
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* danpb/tags/pull-qcrypto-2017-05-09-1:
  crypto: qcrypto_random_bytes() now works on windows w/o any other crypto libs
  crypto: move 'opaque' parameter to (nearly) the end of parameter list
  List SASL config file under the cryptography maintainer's realm
  Default to GSSAPI (Kerberos) instead of DIGEST-MD5 for SASL

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-10 11:22:13 -04:00
Andreas Grapentin
09d352042f use _Static_assert in QEMU_BUILD_BUG_ON
QEMU_BUILD_BUG_ON should use C11's _Static_assert, if the compiler supports it,
to provide more readable messages on failure.

We check for _Static_assert in configure, and set CONFIG_STATIC_ASSERT
accordingly. QEMU_BUILD_BUG_ON invokes _Static_assert if CONFIG_STATIC_ASSERT
is defined, and reverts to the old way otherwise.

That way, systems without C11 conforming compiler will still have the old
messages, as verified by intentionally breaking the configure check.

the following example output was generated by inverting the condition in
QEMU_BUILD_BUG_ON:

without _Static_assert:

> In file included from /qemu/include/qemu/osdep.h:36:0,
>                  from /qemu/qga/commands.c:13:
> /qemu/qga/commands.c: In function ‘qmp_guest_exec_status’:
> /qemu/include/qemu/compiler.h:89:12: error: negative width in bit-field ‘<anonymous>’
>      struct { \
>             ^
> /qemu/include/qemu/compiler.h:96:38: note: in expansion of macro  QEMU_BUILD_BUG_ON_STRUCT’
>  #define QEMU_BUILD_BUG_ON(x) typedef QEMU_BUILD_BUG_ON_STRUCT(x) \
>                                       ^~~~~~~~~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:146:5: note: in expansion of macro ‘QEMU_BUILD_BUG_ON’
>      QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *));   \
>      ^~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:417:5: note: in expansion of macro ‘atomic_load_acquire’
>      atomic_load_acquire(ptr)
>      ^~~~~~~~~~~~~~~~~~~
> /qemu/qga/commands.c:160:21: note: in expansion of macro ‘atomic_mb_read’
>      bool finished = atomic_mb_read(&gei->finished);
>                      ^~~~~~~~~~~~~~

with _Static_assert:

> In file included from /qemu/include/qemu/osdep.h:36:0,
>                  from /qemu/qga/commands.c:13:
> /qemu/qga/commands.c: In function ‘qmp_guest_exec_status’:
> /qemu/include/qemu/compiler.h:94:30: error: static assertion failed: "not expecting: sizeof(*&gei->finished) > sizeof(void *)"
>  #define QEMU_BUILD_BUG_ON(x) _Static_assert(!(x), #x)
>                               ^
> /qemu/include/qemu/atomic.h:146:5: note: in expansion of macro ‘QEMU_BUILD_BUG_ON’
>      QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *));   \
>      ^~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:417:5: note: in expansion of macro ‘atomic_load_acquire’
>      atomic_load_acquire(ptr)
>      ^~~~~~~~~~~~~~~~~~~
> /qemu/qga/commands.c:160:21: note: in expansion of macro ‘atomic_mb_read’
>      bool finished = atomic_mb_read(&gei->finished);
>                      ^~~~~~~~~~~~~~

Signed-off-by: Andreas Grapentin <andreas@grapentin.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-10 10:19:23 +03:00
sochin.jiang
bcd711feb0 channel-file: fix wrong parameter comments
Signed-off-by: sochin.jiang <sochin@aliyun.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-10 10:18:57 +03:00
Stefan Hajnoczi
76d20ea0f1 QAPI patches for 2017-05-04
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Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-04-v3' into staging

QAPI patches for 2017-05-04

# gpg: Signature made Tue 09 May 2017 03:16:12 AM EDT
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* armbru/tags/pull-qapi-2017-05-04-v3: (28 commits)
  qmp-shell: improve help
  qmp-shell: don't show version greeting if unavailable
  qmp-shell: Cope with query-commands error
  qmp-shell: add -N option to skip negotiate
  qmp-shell: add persistent command history
  qobject-input-visitor: Catch misuse of end_struct vs. end_list
  qapi: Document intended use of @name within alternate visits
  qobject-input-visitor: Document full_name_nth()
  qmp: Improve QMP dispatch error messages
  sockets: Delete unused helper socket_address_crumple()
  sockets: Limit SocketAddressLegacy to external interfaces
  sockets: Rename SocketAddressFlat to SocketAddress
  sockets: Rename SocketAddress to SocketAddressLegacy
  qapi: New QAPI_CLONE_MEMBERS()
  sockets: Prepare inet_parse() for flattened SocketAddress
  sockets: Prepare vsock_parse() for flattened SocketAddress
  test-qga: Actually test 0xff sync bytes
  fdc-test: Avoid deprecated 'change' command
  QemuOpts: Simplify qemu_opts_to_qdict()
  block: Simplify bdrv_append_temp_snapshot() logic
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-09 15:49:14 -04:00
Geert Martin Ijewski
a37278169d crypto: qcrypto_random_bytes() now works on windows w/o any other crypto libs
If no crypto library is included in the build, QEMU uses
qcrypto_random_bytes() to generate random data. That function tried to open
/dev/urandom or /dev/random and if opening both files failed it errored out.

Those files obviously do not exist on windows, so there the code uses
CryptGenRandom().

Furthermore there was some refactoring and a new function
qcrypto_random_init() was introduced. If a proper crypto library (gnutls or
libgcrypt) is included in the build, this function does nothing. If neither
is included it initializes the (platform specific) handles that are used by
qcrypto_random_bytes().
Either:
* a handle to /dev/urandom | /dev/random on unix like systems
* a handle to a cryptographic service provider on windows

Signed-off-by: Geert Martin Ijewski <gm.ijewski@web.de>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-09 14:41:47 +01:00
Daniel P. Berrange
e4a3507e86 crypto: move 'opaque' parameter to (nearly) the end of parameter list
Previous commit moved 'opaque' to be the 2nd parameter in the list:

  commit 375092332e
  Author: Fam Zheng <famz@redhat.com>
  Date:   Fri Apr 21 20:27:02 2017 +0800

    crypto: Make errp the last parameter of functions

    Move opaque to 2nd instead of the 2nd to last, so that compilers help
    check with the conversion.

this puts it back to the 2nd to last position.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-09 14:41:47 +01:00
Markus Armbruster
ed0ba0f47e qapi: Document intended use of @name within alternate visits
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493282486-28338-4-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-09 09:14:40 +02:00
Markus Armbruster
0c099fa7e9 sockets: Delete unused helper socket_address_crumple()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-8-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message typo fixed]
2017-05-09 09:14:40 +02:00
Markus Armbruster
bd269ebc82 sockets: Limit SocketAddressLegacy to external interfaces
SocketAddressLegacy is a simple union, and simple unions are awkward:
they have their variant members wrapped in a "data" object on the
wire, and require additional indirections in C.  SocketAddress is the
equivalent flat union.  Convert all users of SocketAddressLegacy to
SocketAddress, except for existing external interfaces.

See also commit fce5d53..9445673 and 85a82e8..c5f1ae3.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-7-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Minor editing accident fixed, commit message and a comment tweaked]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:40 +02:00
Markus Armbruster
62cf396b5d sockets: Rename SocketAddressFlat to SocketAddress
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-6-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
2017-05-09 09:14:40 +02:00
Markus Armbruster
dfd100f242 sockets: Rename SocketAddress to SocketAddressLegacy
The next commit will rename SocketAddressFlat to SocketAddress, and
the commit after that will replace most uses of SocketAddressLegacy by
SocketAddress, replacing most of this commit's renames right back.

Note that checkpatch emits a few "line over 80 characters" warnings.
The long lines are all temporary; the SocketAddressLegacy replacement
will shorten them again.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:40 +02:00
Markus Armbruster
4626a19c86 qapi: New QAPI_CLONE_MEMBERS()
QAPI_CLONE() returns a newly allocated QAPI object.  Inconvenient when
we want to clone into an existing object.  QAPI_CLONE_MEMBERS() does
exactly that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-4-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-09 09:14:40 +02:00
Markus Armbruster
0785bd7a7c sockets: Prepare inet_parse() for flattened SocketAddress
I'm going to flatten SocketAddress: rename SocketAddress to
SocketAddressLegacy, SocketAddressFlat to SocketAddress, eliminate
SocketAddressLegacy except in external interfaces.

inet_parse() returns a newly allocated InetSocketAddress.  Lift the
allocation from inet_parse() into its caller socket_parse() to prepare
for flattening SocketAddress.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1493192202-3184-3-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Straightforward rebase]
2017-05-09 09:14:40 +02:00
Eric Blake
a92c21591b qobject: Add helper macros for common scalar insertions
Rather than making lots of callers wrap a scalar in a QInt, QString,
or QBool, provide helper macros that do the wrapping automatically.

Update the Coccinelle script to make mass conversions easy, although
the conversion itself will be done as a separate patches to ease
review and backport efforts.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-6-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-08 20:32:14 +02:00
Eric Blake
8f16de18f6 pci: Reduce scope of error injection
No one outside of pcie_aer.h was using error injection; mark them
static for internal use.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-3-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-08 20:32:14 +02:00
Stefan Hajnoczi
1c5d506101 A large set of small patches. I have not included yet vhost-user-scsi,
but it'll come in the next pull request.
 
 * use GDB XML register description for x86
 * use _Static_assert in QEMU_BUILD_BUG_ON
 * add "R:" to MAINTAINERS and get_maintainers
 * checkpatch improvements
 * dump threading fixes
 * first part of vhost-user-scsi support
 * QemuMutex tracing
 * vmw_pvscsi and megasas fixes
 * sgabios module update
 * use Rev3 (ACPI 2.0) FADT
 * deprecate -hdachs
 * improve -accel documentation
 * hax fix
 * qemu-char GSource bugfix
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Merge remote-tracking branch 'bonzini/tags/for-upstream' into staging

A large set of small patches.  I have not included yet vhost-user-scsi,
but it'll come in the next pull request.

* use GDB XML register description for x86
* use _Static_assert in QEMU_BUILD_BUG_ON
* add "R:" to MAINTAINERS and get_maintainers
* checkpatch improvements
* dump threading fixes
* first part of vhost-user-scsi support
* QemuMutex tracing
* vmw_pvscsi and megasas fixes
* sgabios module update
* use Rev3 (ACPI 2.0) FADT
* deprecate -hdachs
* improve -accel documentation
* hax fix
* qemu-char GSource bugfix

# gpg: Signature made Fri 05 May 2017 06:10:40 AM EDT
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# 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

* bonzini/tags/for-upstream: (21 commits)
  vhost-scsi: create a vhost-scsi-common abstraction
  libvhost-user: replace vasprintf() to fix build
  get_maintainer: add subsystem to reviewer output
  get_maintainer: --r (list reviewer) is on by default
  get_maintainer: it's '--pattern-depth', not '-pattern-depth'
  get_maintainer: Teach get_maintainer.pl about the new "R:" tag
  MAINTAINERS: Add "R:" tag for self-appointed reviewers
  Fix the -accel parameter and the documentation for 'hax'
  dump: Acquire BQL around vm_start() in dump thread
  hax: Fix memory mapping de-duplication logic
  checkpatch: Disallow glib asserts in main code
  trace: add qemu mutex lock and unlock trace events
  vmw_pvscsi: check message ring page count at initialisation
  sgabios: update for "fix wrong video attrs for int 10h,ah==13h"
  scsi: avoid an off-by-one error in megasas_mmio_write
  vl: deprecate the "-hdachs" option
  use _Static_assert in QEMU_BUILD_BUG_ON
  target/i386: Add GDB XML register description support
  char: Fix removing wrong GSource that be found by fd_in_tag
  hw/i386: Build-time assertion on pc/q35 reset register being identical.
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-08 13:29:40 -04:00
Marc-André Lureau
61f7c6a0c2 doc: fix function spelling
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-07 09:57:51 +03:00
Stefan Hajnoczi
dd1559bb26 -----BEGIN PGP SIGNATURE-----
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'elmarco/tags/chr-tests-pull-request' into staging

# gpg: Signature made Thu 04 May 2017 12:42:10 PM BST
# gpg:                using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* elmarco/tags/chr-tests-pull-request: (21 commits)
  tests: add /char/console test
  tests: add /char/udp test
  tests: add /char/socket test
  tests: add /char/file test
  tests: add /char/pipe test
  tests: add alias check in /char/ringbuf
  char-udp: flush as much buffer as possible
  char-socket: add 'connected' property
  char-socket: add 'addr' property
  char-socket: update local address after listen
  char-socket: introduce update_disconnected_filename()
  char: useless NULL check
  char: remove chardevs list
  char: remove qemu_chardev_add
  char: use /chardevs container instead of chardevs list
  vl: add todo note about root container cleanup
  char: add a /chardevs container
  container: don't leak container reference
  xen: use a better chardev type check
  mux: simplfy muxes_realize_done
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 17:07:55 +01:00
Stefan Hajnoczi
f03f9f0c10 Basic support for using channel-attached 3270 'green-screen'
devices via tn3270. Actual handling of the data stream is
 delegated to x3270; more info at http://wiki.qemu.org/Features/3270
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Merge remote-tracking branch 'cohuck/tags/s390x-3270-20170504' into staging

Basic support for using channel-attached 3270 'green-screen'
devices via tn3270. Actual handling of the data stream is
delegated to x3270; more info at http://wiki.qemu.org/Features/3270

# gpg: Signature made Thu 04 May 2017 11:36:51 AM BST
# gpg:                using RSA key 0xDECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* cohuck/tags/s390x-3270-20170504:
  s390x/3270: Mark non-migratable and enable the device
  s390x/3270: Detect for continued presence of a 3270 client
  s390x/3270: Add the TCP socket events handler for 3270
  s390x/3270: 3270 data stream handling
  s390x/3270: Add emulated terminal3270 device
  s390x/3270: Add abstract emulated ccw-attached 3270 device
  s390x/css: Add an algorithm to find a free chpid
  chardev: Basic support for TN3270

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:56:38 +01:00
Stefan Hajnoczi
4aee86c60a migration/next for 20170504
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 =FAsE
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'quintela/tags/migration/20170504' into staging

migration/next for 20170504

# gpg: Signature made Thu 04 May 2017 10:35:41 AM BST
# gpg:                using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* quintela/tags/migration/20170504:
  migration: Extra tracing
  migration: Move postcopy-ram.h to migration/
  monitor: Move hmp_info_snapshots from savevm.c to hmp.c
  monitor: Move hmp_delvm from savevm.c to hmp.c
  monitor: Move hmp_savevm from savevm.c to hmp.c
  monitor: Move hmp_loadvm from monitor.c to hmp.c
  monitor: Remove monitor parameter from save_vmstate
  migration: to_dst_file at that point is NULL
  migration: setup bi-directional I/O channel for exec: protocol
  ram: Split dirty bitmap by RAMBlock

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:52:35 +01:00
Stefan Hajnoczi
317134bb54 Openrisc Features and Fixes for qemu 2.10
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Merge remote-tracking branch 'shorne/tags/pull-or-20170504' into staging

Openrisc Features and Fixes for qemu 2.10

# gpg: Signature made Thu 04 May 2017 01:41:45 AM BST
# gpg:                using RSA key 0xC3B31C2D5E6627E4
# gpg: Good signature from "Stafford Horne <shorne@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: D9C4 7354 AEF8 6C10 3A25  EFF1 C3B3 1C2D 5E66 27E4

* shorne/tags/pull-or-20170504:
  target/openrisc: Support non-busy idle state using PMR SPR
  target/openrisc: Remove duplicate features property
  target/openrisc: Implement full vmstate serialization
  migration: Add VMSTATE_STRUCT_2DARRAY()
  target/openrisc: implement shadow registers
  migration: Add VMSTATE_UINTTL_2DARRAY()
  target/openrisc: add numcores and coreid support
  target/openrisc: Fixes for memory debugging
  target/openrisc: Implement EPH bit
  target/openrisc: Implement EVBAR register
  MAINTAINERS: Add myself as openrisc maintainer

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:21:16 +01:00
Stefan Hajnoczi
4f225f343a More s390x patches, this time boot related:
- LOADPARM machine property, exposed to the guest via SCLP and
   diagnose 308
 - Use LOADPARM in the s390-ccw bios to select a boot entry
 - Fix a crash in the ipl device code when a virtio-scsi-pci device
   has been specified
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 Version: GnuPG v1
 
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Merge remote-tracking branch 'cohuck/tags/s390x-20170502' into staging

More s390x patches, this time boot related:
- LOADPARM machine property, exposed to the guest via SCLP and
  diagnose 308
- Use LOADPARM in the s390-ccw bios to select a boot entry
- Fix a crash in the ipl device code when a virtio-scsi-pci device
  has been specified

# gpg: Signature made Tue 02 May 2017 02:29:26 PM BST
# gpg:                using RSA key 0xDECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* cohuck/tags/s390x-20170502:
  hw/s390x/ipl: Fix crash with virtio-scsi-pci device
  pc-bios/s390-ccw.img: update image
  pc-bios/s390-ccw: add boot entry selection to El Torito routine
  pc-bios/s390-ccw: add boot entry selection for ECKD DASD
  pc-bios/s390-ccw: provide entry selection on LOADPARM for SCSI disk
  pc-bios/s390-ccw: provide a function to interpret LOADPARM value
  pc-bios/s390-ccw: get LOADPARM stored in SCP Read Info
  pc-bios/s390-ccw: Make ebcdic/ascii conversion public
  util/qemu-config: Add loadparm to qemu machine_opts
  hw/s390x/sclp: update LOADPARM in SCP Info
  hw/s390x/ipl: enable LOADPARM in IPIB for a boot device
  hw/s390x: provide loadparm property for the machine

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:00:03 +01:00
Felipe Franciosi
95615ce5a1 vhost-scsi: create a vhost-scsi-common abstraction
In order to introduce a new vhost-user-scsi host device type, it makes
sense to abstract part of vhost-scsi into a common parent class. This
commit does exactly that.

Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Message-Id: <1488479153-21203-3-git-send-email-felipe@nutanix.com>
2017-05-05 12:10:00 +02:00
Fam Zheng
6796b4008b dump: Acquire BQL around vm_start() in dump thread
This fixes an assertion failure in the following backtrace:

    __GI___assert_fail
    memory_region_transaction_commit
    memory_region_add_eventfd
    virtio_pci_ioeventfd_assign
    virtio_bus_set_host_notifier
    virtio_blk_data_plane_start
    virtio_bus_start_ioeventfd
    virtio_vmstate_change
    vm_state_notify
    vm_prepare_start
    vm_start
    dump_cleanup
    dump_process
    dump_thread
    start_thread
    clone

vm_start need BQL, acquire it if doing cleaning up from main thread.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170503072819.14462-1-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:10:00 +02:00