Commit Graph

6315 Commits

Author SHA1 Message Date
Alexey Kardashevskiy
b516572f31 memory: Get rid of address_space_init_shareable
Since FlatViews are shared now and ASes not, this gets rid of
address_space_init_shareable().

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-17-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22 01:06:51 +02:00
Alexey Kardashevskiy
5e8fd947e2 memory: Rework "info mtree" to print flat views and dispatch trees
This adds a new "-d" switch to "info mtree" to print dispatch tree
internals.

This changes the way "-f" is handled - it prints now flat views and
associated address spaces.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-15-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:38 +02:00
Alexey Kardashevskiy
8629d3fcb7 memory: Rename mem_begin/mem_commit/mem_add helpers
This renames some helpers to reflect better what they do.

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-9-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:37 +02:00
Alexey Kardashevskiy
166206845f memory: Switch memory from using AddressSpace to FlatView
FlatView's will be shared between AddressSpace's and subpage_t
and MemoryRegionSection cannot store AS anymore, hence this change.

In particular, for:

 typedef struct subpage_t {
     MemoryRegion iomem;
-    AddressSpace *as;
+    FlatView *fv;
     hwaddr base;
     uint16_t sub_section[];
 } subpage_t;

  struct MemoryRegionSection {
     MemoryRegion *mr;
-    AddressSpace *address_space;
+    FlatView *fv;
     hwaddr offset_within_region;
     Int128 size;
     hwaddr offset_within_address_space;
     bool readonly;
 };

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-7-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:37 +02:00
Alexey Kardashevskiy
66a6df1dc6 memory: Move AddressSpaceDispatch from AddressSpace to FlatView
As we are going to share FlatView's between AddressSpace's,
and AddressSpaceDispatch is a structure to perform quick lookup
in FlatView, this moves ASD to FlatView.

After previosly open coded ASD rendering, we can also remove
as->next_dispatch as the new FlatView pointer is stored
on a stack and set to an AS atomically.

flatview_destroy() is executed under RCU instead of
address_space_dispatch_free() now.

This makes mem_begin/mem_commit to work with ASD and mem_add with FV
as later on mem_add will be taking FV as an argument anyway.

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-5-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:37 +02:00
Alexey Kardashevskiy
9a62e24f45 memory: Open code FlatView rendering
We are going to share FlatView's between AddressSpace's and per-AS
memory listeners won't suit the purpose anymore so open code
the dispatch tree rendering.

Since there is a good chance that dispatch_listener was the only
listener, this avoids address_space_update_topology_pass() if there is
no registered listeners; this should improve starting time.

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-3-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:37 +02:00
Paolo Bonzini
447b0d0b9e memory: avoid "resurrection" of dead FlatViews
It's possible for address_space_get_flatview() as it currently stands
to cause a use-after-free for the returned FlatView, if the reference
count is incremented after the FlatView has been replaced by a writer:

   thread 1             thread 2             RCU thread
  -------------------------------------------------------------
   rcu_read_lock
   read as->current_map
                        set as->current_map
                        flatview_unref
                           '--> call_rcu
   flatview_ref
     [ref=1]
   rcu_read_unlock
                                             flatview_destroy
   <badness>

Since FlatViews are not updated very often, we can just detect the
situation using a new atomic op atomic_fetch_inc_nonzero, similar to
Linux's atomic_inc_not_zero, which performs the refcount increment only if
it hasn't already hit zero.  This is similar to Linux commit de09a9771a53
("CRED: Fix get_task_cred() and task_state() to not resurrect dead
credentials", 2010-07-29).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 23:19:37 +02:00
Pavel Butsykin
55289fb036 virtio-serial: add enable_backend callback
We should guarantee that RAM will not be modified while VM has a stopped
state, otherwise it can lead to negative consequences during post-copy
migration. In RUN_STATE_FINISH_MIGRATE step, it's expected that RAM on
source side will not be modified as this could lead to non-consistent vm state
on the destination side. Also RAM access during postcopy-ram migration with
enabled release-ram capability can lead to sad consequences.

Let's add enable_backend() callback to avoid undesirable virtioqueue changes
in the guest memory.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-Id: <20170919120733.22020-1-pbutsykin@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-21 11:51:49 +02:00
Peter Maydell
d3f5433c7b Machine/CPU/NUMA queue, 2017-09-19
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine/CPU/NUMA queue, 2017-09-19

# gpg: Signature made Tue 19 Sep 2017 21:17:01 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  MAINTAINERS: Update git URLs for my trees
  hw/acpi-build: Fix SRAT memory building in case of node 0 without RAM
  NUMA: Replace MAX_NODES with nb_numa_nodes in for loop
  numa: cpu: calculate/set default node-ids after all -numa CLI options are parsed
  arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly
  pc: use generic cpu_model parsing
  vl.c: convert cpu_model to cpu type and set of global properties before machine_init()
  cpu: make cpu_generic_init() abort QEMU on error
  qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts
  hostmem-file: Add "discard-data" option
  osdep: Define QEMU_MADV_REMOVE
  vl: Clean up user-creatable objects when exiting

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-20 17:35:36 +01:00
Igor Mammedov
79e0793614 numa: cpu: calculate/set default node-ids after all -numa CLI options are parsed
Calculating default node-ids for CPUs in possible_cpu_arch_ids()
is rather fragile since defaults calculation uses nb_numa_nodes but
callback might be potentially called early before all -numa CLI
options are parsed, which would lead to cpus assigned only upto
nb_numa_nodes at the time possible_cpu_arch_ids() is called.

Issue was introduced by
(7c88e65 numa: mirror cpu to node mapping in MachineState::possible_cpus)
and for example CLI:
  -smp 4 -numa node,cpus=0 -numa node
would set props.node-id in possible_cpus array for every non
explicitly mapped CPU to the first node.

Issue is not visible to guest nor to mgmt interface due to
  1) implictly mapped cpus are forced to the first node in
     case of partial mapping
  2) in case of default mapping possible_cpu_arch_ids() is
     called after all -numa options are parsed (resulting
     in correct mapping).

However it's fragile to rely on late execution of
possible_cpu_arch_ids(), therefore add machine specific
callback that returns node-id for CPU and use it to calculate/
set defaults at machine_numa_finish_init() time when all -numa
options are parsed.

Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496314408-163972-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 16:51:33 -03:00
David Hildenbrand
53d8e91d64 s390x: move sclp_service_call() to sclp.h
Implemented in sclp.c, so let's move it to the right include file.
Also adjust some includes.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-9-david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-09-19 18:31:31 +02:00
David Hildenbrand
19c69829d6 s390x: move subsystem_reset() to s390-virtio-ccw.h
Implemented in s390-virtio-ccw.c, so move it to the right header.
We can also drop the extern. Fix up one include.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-7-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-09-19 18:31:31 +02:00
David Hildenbrand
6fda014e1a cpu: drop old comments describing members
These comments are obviously stale.

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-3-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-09-19 18:21:33 +02:00
Eric Blake
262a69f428 osdep.h: Prohibit disabling assert() in supported builds
We already have several files that knowingly require assert()
to work, sometimes because refactoring the code for proper
error handling has not been tackled yet; there are probably
other files that have a similar situation but with no comments
documenting the same.  In fact, we have places in migration
that handle untrusted input with assertions, where disabling
the assertions risks a worse security hole than the current
behavior of losing the guest to SIGABRT when migration fails
because of the assertion.  Promote our current per-file
safety-valve to instead be project-wide, and expand it to also
cover glib's g_assert().

Note that we do NOT want to encourage 'assert(side-effects);'
(that is a bad practice that prevents copy-and-paste of code to
other projects that CAN disable assertions; plus it costs
unnecessary reviewer mental cycles to remember whether a project
special-cases the crippling of asserts); and we would LIKE to
fix migration to not rely on asserts (but that takes a big code
audit).  But in the meantime, we DO want to send a message
that anyone that disables assertions has to tweak code in order
to compile, making it obvious that they are taking on additional
risk that we are not going to support.  At the same time, leave
comments mentioning NDEBUG in files that we know still need to
be scrubbed, so there is at least something to grep for.

It would be possible to come up with some other mechanism for
doing runtime checking by default, but which does not abort
the program on failure, while leaving side effects in place
(unlike how crippling assert() avoids even the side effects),
perhaps under the name q_verify(); but it was not deemed worth
the effort (developers should not have to learn a replacement
when the standard C macro works just fine, and it would be a lot
of churn for little gain).  The patch specifically uses #error
rather than #warn so that a user is forced to tweak the header
to acknowledge the issue, even when not using a -Werror
compilation.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>

Message-Id: <20170911211320.25385-1-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 16:20:49 +02:00
Gonglei
6c69dfb67e i386/cpu/hyperv: support over 64 vcpus for windows guests
Starting with Windows Server 2012 and Windows 8, if
CPUID.40000005.EAX contains a value of -1, Windows assumes specific
limit to the number of VPs. In this case, Windows Server 2012
guest VMs may use more than 64 VPs, up to the maximum supported
number of processors applicable to the specific Windows
version being used.

https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs

For compatibility, Let's introduce a new property for X86CPU,
named "x-hv-max-vps" as Eduardo's suggestion, and set it
to 0x40 before machine 2.10.

(The "x-" prefix indicates that the property is not supposed to
be a stable user interface.)

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1505143227-14324-1-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 16:20:49 +02:00
Igor Mammedov
ba1ba5cca3 arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly
there are 2 use cases to deal with:
  1: fixed CPU models per board/soc
  2: boards with user configurable cpu_model and fallback to
     default cpu_model if user hasn't specified one explicitly

For the 1st
  drop intermediate cpu_model parsing and use const cpu type
  directly, which replaces:
     typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
     object_new(typename)
  with
     object_new(FOO_CPU_TYPE_NAME)
  or
     cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
  with
     cpu_create(FOO_CPU_TYPE_NAME)

as result 1st use case doesn't have to invoke not necessary
translation and not needed code is removed.

For the 2nd
 1: set default cpu type with MachineClass::default_cpu_type and
 2: use generic cpu_model parsing that done before machine_init()
    is run and:
    2.1: drop custom cpu_model parsing where pattern is:
       typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
       [parse_features(typename, cpu_model, &err) ]

    2.2: or replace cpu_generic_init() which does what
         2.1 does + create_cpu(typename) with just
         create_cpu(machine->cpu_type)
as result cpu_name -> cpu_type translation is done using
generic machine code one including parsing optional features
if supported/present (removes a bunch of duplicated cpu_model
parsing code) and default cpu type is defined in an uniform way
within machine_class_init callbacks instead of adhoc places
in boadr's machine_init code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1505318697-77161-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:32 -03:00
Igor Mammedov
6063d4c0f9 vl.c: convert cpu_model to cpu type and set of global properties before machine_init()
All machines that support user specified cpu_model either call
cpu_generic_init() or cpu_class_by_name()/CPUClass::parse_features
to parse feature string and to get CPU type to create.

Which leads to code duplication and hard-codding default CPU model
within machine_foo_init() code. Which makes it impossible to
get CPU type before machine_init() is run.

So instead of setting default CPUs models and doing parsing in
target specific machine_foo_init() in various ways, provide
a generic data driven cpu_model parsing before machine_init()
is called.

in follow up per target patches, it will allow to:
  * define default CPU type in consistent/generic manner
    per machine type and drop custom code that fallbacks
    to default if cpu_model is NULL
  * drop custom features parsing in targets and do it
    in centralized way.
  * for cases of
      cpu_generic_init(TYPE_BASE/DEFAULT_CPU, "some_cpu")
    replace it with
      cpu_create(machine->cpu_type) || cpu_create(TYPE_FOO)
    depending if CPU type is user settable or not.
    not doing useless parsing and clearly documenting where
    CPU model is user settable or fixed one.

Patch allows machine subclasses to define default CPU type
per machine class at class_init() time and if that is set
generic code will parse cpu_model into a MachineState::cpu_type
which will be used to create CPUs for that machine instance
and allows gradual per board conversion.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1505318697-77161-4-git-send-email-imammedo@redhat.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:32 -03:00
Igor Mammedov
4482e05cbb cpu: make cpu_generic_init() abort QEMU on error
Almost every user of cpu_generic_init() checks for
returned NULL and then reports failure in a custom way
and aborts process.
Some users assume that call can't fail and don't check
for failure, though they should have checked for it.

In either cases cpu_generic_init() failure is fatal,
so instead of checking for failure and reporting
it various ways, make cpu_generic_init() report
errors in consistent way and terminate QEMU on failure.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1505318697-77161-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:32 -03:00
Igor Mammedov
3c72234c98 qom: cpus: split cpu_generic_init() on feature parsing and cpu creation parts
it would allow to reuse feature parsing part in various machines
that have CPU features instead of re-implementing the same feature
parsing each time.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1505318697-77161-2-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:32 -03:00
Paolo Bonzini
08e2c9f19c scsi: move block/scsi.h to include/scsi/constants.h
Complete the transition by renaming this header, which was
shared by block/iscsi.c and the SCSI emulation code.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:31 +02:00
Eduardo Habkost
0f81d33530 osdep: Define QEMU_MADV_REMOVE
Define QEMU_MADV_REMOVE, so we can use it with qemu_madvise().

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170824192315.5897-3-ehabkost@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Zack Cornelius <zack.cornelius@kove.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:23 -03:00
Eduardo Habkost
9d5139e543 vl: Clean up user-creatable objects when exiting
Delete all user-creatable objects in /objects when exiting QEMU, so they
can perform cleanup actions.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170824192315.5897-2-ehabkost@redhat.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Zack Cornelius <zack.cornelius@kove.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:23 -03:00
Paolo Bonzini
1ead6b4e24 scsi: introduce sg_io_sense_from_errno
Move more knowledge of SG_IO out of hw/scsi/scsi-generic.c, for
reusability.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Paolo Bonzini
a3760467c6 scsi: introduce scsi_build_sense
Move more knowledge of sense data format out of hw/scsi/scsi-bus.c
for reusability.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Paolo Bonzini
e5b5728cd3 scsi: move non-emulation specific code to scsi/
util/scsi.c includes some SCSI code that is shared by block/iscsi.c and
hw/scsi, but the introduction of the persistent reservation helper
will add many more instances of this.  There is also include/block/scsi.h,
which actually is not part of the core block layer.

The persistent reservation manager will also need a home.  A scsi/
directory provides one for both the aforementioned shared code and
the PR manager code.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Paolo Bonzini
37b6045c45 scsi: rename scsi_build_sense to scsi_convert_sense
After introducing the scsi/ subdirectory, there will be a scsi_build_sense
function that is the same as scsi_req_build_sense but without needing
a SCSIRequest.  The existing scsi_build_sense function gets in the way,
remove it.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Fam Zheng
a485b23425 scsi: Introduce scsi_sense_buf_to_errno
This recognizes the "fixed" and "descriptor" format sense data, extracts
the sense key/asc/ascq fields then converts them to an errno.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170821141008.19383-4-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Fam Zheng
2875135807 scsi: Refactor scsi sense interpreting code
So that it can be reused outside of iscsi.c.

Also update MAINTAINERS to include the new files in SCSI section.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170821141008.19383-2-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Richard W.M. Jones
5c0919d020 virtio-scsi: Add virtqueue_size parameter allowing virtqueue size to be set.
Since Linux switched to blk-mq as the default in Linux commit
5c279bd9e406 ("scsi: default to scsi-mq"), virtio-scsi LUNs consume
about 10x as much guest kernel memory.

This commit allows you to choose the virtqueue size for each
virtio-scsi-pci controller like this:

  -device virtio-scsi-pci,id=scsi,virtqueue_size=16

The default is still 128 as before.  Using smaller virtqueue_size
allows many more disks to be added to small memory virtual machines.
For a 1 vCPU, 500 MB, no swap VM I observed:

  With scsi-mq enabled (upstream kernel):              175 disks
    -"- ditto -"-   virtqueue_size=64:                 318 disks
    -"- ditto -"-   virtqueue_size=16:                 775 disks
  With scsi-mq disabled (kernel before 5c279bd9e406): 1755 disks

Note that to have any effect, this requires a kernel patch:

  https://lkml.org/lkml/2017/8/10/689

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Message-Id: <20170810165255.20865-1-rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:11 +02:00
Mao Zhongyi
794939e81d hw/ide: Convert DeviceClass init to realize
Replace init with realize in IDEDeviceClass, which has errp
as a parameter. So all the implementations now use error_setg
instead of error_report for reporting error.

Cc: John Snow <jsnow@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>

Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: c4d27b4b5d9e37468e63e35214ce4833ca271542.1505737465.git.maozy.fnst@cn.fujitsu.com
Signed-off-by: John Snow <jsnow@redhat.com>
2017-09-18 19:43:38 -04:00
John Snow
0e168d3551 IDE: replace DEBUG_AIO with trace events
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20170901001502.29915-6-jsnow@redhat.com
[Edited enum conditional for Clang --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2017-09-18 15:01:26 -04:00
John Snow
82a13ff821 ATAPI: Replace DEBUG_IDE_ATAPI with tracing events
As part of the ongoing effort to modernize the tracing facilities for
the IDE family of devices, remove PRINTFs in the ATAPI device with
actual tracing events.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20170901001502.29915-5-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2017-09-18 15:01:26 -04:00
John Snow
3eee2611dd IDE: replace DEBUG_IDE with tracing system
Remove the DEBUG_IDE preprocessor definition with something more
appropriately flexible, using the trace-events subsystem.

This will be less prone to bitrot and will more effectively allow
us to target just the functions we care about.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170901001502.29915-2-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2017-09-18 15:01:25 -04:00
Peter Maydell
11dd4b89d0 pull-seccomp-20170915
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20170915' into staging

pull-seccomp-20170915

# gpg: Signature made Fri 15 Sep 2017 09:21:15 BST
# gpg:                using RSA key 0xDF32E7C0F0FFF9A2
# gpg: Good signature from "Eduardo Otubo (Senior Software Engineer) <otubo@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: D67E 1B50 9374 86B4 0723  DBAB DF32 E7C0 F0FF F9A2

* remotes/otubo/tags/pull-seccomp-20170915:
  buildsys: Move seccomp cflags/libs to per object
  seccomp: add resourcecontrol argument to command line
  seccomp: add spawn argument to command line
  seccomp: add elevateprivileges argument to command line
  seccomp: add obsolete argument to command line
  seccomp: changing from whitelist to blacklist

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-15 22:34:08 +01:00
Peter Maydell
d535f5d363 ppc patch queue 2017-09-15
Here's the current batch of accumulated ppc patches.  These are all
 pretty simple bugfixes or cleanups, no big new features here.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.11-20170915' into staging

ppc patch queue 2017-09-15

Here's the current batch of accumulated ppc patches.  These are all
pretty simple bugfixes or cleanups, no big new features here.

# gpg: Signature made Fri 15 Sep 2017 04:50:00 BST
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.11-20170915:
  ppc/kvm: use kvm_vm_check_extension() in kvmppc_is_pr()
  spapr_events: use QTAILQ_FOREACH_SAFE() in spapr_clear_pending_events()
  spapr_cpu_core: cleaning up qdev_get_machine() calls
  spapr_pci: don't create 64-bit MMIO window if we don't need to
  spapr_pci: convert sprintf() to g_strdup_printf()
  spapr_cpu_core: fail gracefully with non-pseries machine types
  xics: fix several error leaks
  vfio, spapr: Fix levels calculation
  spapr_pci: handle FDT creation errors with _FDT()
  spapr_pci: use the common _FDT() helper
  spapr: fix CAS-generated reset
  ppc/xive: fix OV5_XIVE_EXPLOIT bits
  spapr: only update SDR1 once per-cpu during CAS
  spapr_pci: use g_strdup_printf()
  spapr_pci: drop useless check in spapr_populate_pci_child_dt()
  spapr_pci: drop useless check in spapr_phb_vfio_get_loc_code()
  hw/ppc/spapr.c: cleaning up qdev_get_machine() calls
  net: Add SunGEM device emulation as found on Apple UniNorth

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-15 19:00:16 +01:00
Eduardo Otubo
24f8cdc572 seccomp: add resourcecontrol argument to command line
This patch adds [,resourcecontrol=deny] to `-sandbox on' option. It
blacklists all process affinity and scheduler priority system calls to
avoid any bigger of the process.

Signed-off-by: Eduardo Otubo <otubo@redhat.com>
2017-09-15 10:15:06 +02:00
Eduardo Otubo
995a226f88 seccomp: add spawn argument to command line
This patch adds [,spawn=deny] argument to `-sandbox on' option. It
blacklists fork and execve system calls, avoiding Qemu to spawn new
threads or processes.

Signed-off-by: Eduardo Otubo <otubo@redhat.com>
2017-09-15 10:15:06 +02:00
Eduardo Otubo
73a1e64725 seccomp: add elevateprivileges argument to command line
This patch introduces the new argument
[,elevateprivileges=allow|deny|children] to the `-sandbox on'. It allows
or denies Qemu process to elevate its privileges by blacklisting all
set*uid|gid system calls. The 'children' option will let forks and
execves run unprivileged.

Signed-off-by: Eduardo Otubo <otubo@redhat.com>
2017-09-15 10:15:06 +02:00
Eduardo Otubo
2b716fa6d6 seccomp: add obsolete argument to command line
This patch introduces the argument [,obsolete=allow] to the `-sandbox on'
option. It allows Qemu to run safely on old system that still relies on
old system calls.

Signed-off-by: Eduardo Otubo <otubo@redhat.com>
2017-09-15 10:15:05 +02:00
Eduardo Otubo
1bd6152ae2 seccomp: changing from whitelist to blacklist
This patch changes the default behavior of the seccomp filter from
whitelist to blacklist. By default now all system calls are allowed and
a small black list of definitely forbidden ones was created.

Signed-off-by: Eduardo Otubo <otubo@redhat.com>
2017-09-15 10:13:35 +02:00
Cédric Le Goater
21f3f8db0e ppc/xive: fix OV5_XIVE_EXPLOIT bits
On POWER9, the Client Architecture Support (CAS) negotiation process
determines whether the guest operates in XIVE Legacy compatibility or
in XIVE exploitation mode. Now that we have initial guest support for
the XIVE interrupt controller, let's fix the bits definition which have
evolved in the latest specs.

The platform advertises the XIVE Exploitation Mode support using the
property "ibm,arch-vec-5-platform-support-vec-5", byte 23 bits 0-1 :

 - 0b00 XIVE legacy mode Only
 - 0b01 XIVE exploitation mode Only
 - 0b10 XIVE legacy or exploitation mode

The OS asks for XIVE Exploitation Mode support using the property
"ibm,architecture-vec-5", byte 23 bits 0-1:

 - 0b00 XIVE legacy mode Only
 - 0b01 XIVE exploitation mode Only

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-09-15 10:29:48 +10:00
Benjamin Herrenschmidt
f85504b23a net: Add SunGEM device emulation as found on Apple UniNorth
This adds a simplistic emulation of the Sun GEM ethernet controller
found in Apple ASICs.

Currently we only support the Apple UniNorth 1.x variant, but the
other Apple or Sun variants should mostly be a matter of adding
PCI IDs options.

We have a very primitive emulation of a single Broadcom 5201 PHY
which is supported by the MacOS driver.

This model brings out-of-the-box networking to MacOS 9, and all
versions of OS X I tried with the mac99 platform.

Further improvements from Mark:
- Remove sungem.h file, moving constants into sungem.c as required
- Switch to using tracepoints for debugging
- Split register blocks into separate memory regions
- Use arrays in SunGEMState to hold register values
- Add state-saving support

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-09-15 10:29:48 +10:00
Pranavkumar Sawargaonkar
70bfdce6a1 hw/pci-host/gpex: Set INTx index/gsi mapping
To implement INTx to gsi routing we need to pass the gpex host
bridge the gsi associated to each INTx index. Let's introduce
irq_num array and gpex_set_irq_num setter function.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Tushar Jagad <tushar.jagad@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Feng Kan <fkan@apm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1505296004-6798-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-14 18:43:18 +01:00
Alistair Francis
1946809ece xlnx-zcu102: Add a machine level virtualization property
Add a machine level virtualization property. This defaults to false and can be
set to true using this machine command line argument:
    -machine xlnx-zcu102,virtualization=on

This follows what the ARM virt machine does.

This property only applies to the ZCU102 machine. The EP108 machine does
not have this property.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-14 18:43:18 +01:00
Vadim Galitsyn
9aa3397f19 qmp: introduce query-memory-size-summary command
Add a new query-memory-size-summary command which provides the
following memory information in bytes:

  * base-memory - size of "base" memory specified with command line option -m.

  * plugged-memory - amount of memory that was hot-plugged.
    If target does not have CONFIG_MEM_HOTPLUG enabled, no
    value is reported.

Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Mohammed Gamal <mohammed.gamal@profitbricks.com>
Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Signed-off-by: Vadim Galitsyn <vadim.galitsyn@profitbricks.com>
Reviewed-by: Eugene Crosser <evgenii.cherkashin@profitbricks.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: qemu-devel@nongnu.org
Message-Id: <20170829153022.27004-3-vadim.galitsyn@profitbricks.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Fixup comments as per Igor's review
  Added 'of' from Vadim's reply
2017-09-14 15:52:10 +01:00
Vadim Galitsyn
31959e82fb hmp: extend "info numa" with hotplugged memory information
Report amount of hotplugged memory in addition to total
amount per NUMA node.

Signed-off-by: Vadim Galitsyn <vadim.galitsyn@profitbricks.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: qemu-devel@nongnu.org
Message-Id: <20170829153022.27004-2-vadim.galitsyn@profitbricks.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-09-14 15:52:10 +01:00
Peter Maydell
fcea73709b pc, pci, virtio: patches queued before 2.10
A bunch of stuff that was posted before the 2.10 timeframe,
 mostly fixes/cleanups.  New PCI bridges.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, pci, virtio: patches queued before 2.10

A bunch of stuff that was posted before the 2.10 timeframe,
mostly fixes/cleanups.  New PCI bridges.

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

# gpg: Signature made Fri 08 Sep 2017 14:15:34 BST
# gpg:                using RSA key 0x281F0DB8D28D5469
# 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:
  fw_cfg: rename read callback
  pci: add reserved slot check to do_pci_register_device()
  pci: move check for existing devfn into new pci_bus_devfn_available() helper
  vmgenid: replace x-write-pointer-available hack
  vhost-user-bridge: fix resume regression (since 2.9)
  libvhost-user: support resuming vq->last_avail_idx based on used_idx
  acpi/vmgenid: change device category to misc
  intel_iommu: fix missing BQL in pt fast path
  docs: update documentation considering PCIE-PCI bridge
  hw/pci: add QEMU-specific PCI capability to the Generic PCI Express Root Port
  hw/pci: introduce bridge-only vendor-specific capability to provide some hints to firmware
  hw/pci: introduce pcie-pci-bridge device
  Revert "ACPI: don't call acpi_pcihp_device_plug_cb on xen"
  hw/acpi: Move acpi_set_pci_info to pcihp
  hw/acpi: Limit hotplug to root bus on legacy mode
  pc: add 2.11 machine types
  vhost: Release memory references on cleanup

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-08 16:04:42 +01:00
Peter Maydell
a1ae46d1b4 ppc patch queue 2017-09-08
This is the first batch of ppc related patches for qemu-2.11, and it's
 accumulated quite a few things.  Includes:
 
   * A cleanup to handling of ppc cpu models from Igor
   * First parts of fixes to handling of guest vs. host SMT modes from
     Sam Bobroff
   * Preliminary patches towards supporting the Sam460 board from
     Balaton Zoltan
   * Several fixes for hotplug logic
   * Assorted other fixes and cleanups
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.11-20170908' into staging

ppc patch queue 2017-09-08

This is the first batch of ppc related patches for qemu-2.11, and it's
accumulated quite a few things.  Includes:

  * A cleanup to handling of ppc cpu models from Igor
  * First parts of fixes to handling of guest vs. host SMT modes from
    Sam Bobroff
  * Preliminary patches towards supporting the Sam460 board from
    Balaton Zoltan
  * Several fixes for hotplug logic
  * Assorted other fixes and cleanups

# gpg: Signature made Fri 08 Sep 2017 06:28:42 BST
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.11-20170908: (40 commits)
  ppc: spapr: Move VCPU ID calculation into sPAPR
  ppc: remove non implemented cpu models
  ppc: drop caching ObjectClass from PowerPCCPUAlias
  ppc: simplify cpu model lookup by PVR
  ppc: replace inter-function cyclic dependency/recurssion with 2 simple lookups
  ppc: make cpu alias point only to real cpu models
  ppc: make cpu_model translation to type consistent
  ppc: use macros to make cpu type name from string literal
  target/ppc: Remove old STATUS file
  PPC: KVM: Support machine option to set VSMT mode
  spapr: fallback to raw mode if best compat mode cannot be set during CAS
  hw/nvram/spapr_nvram: Device can not be created by the users
  hw/ppc/spapr_cpu_core: Add a proper check for spapr machine
  ppc4xx: Export ECB and PLB emulation
  ppc4xx_i2c: Move to hw/i2c
  ppc4xx_i2c: QOMify
  ppc4xx: Split off 4xx I2C emulation from ppc405_uc to its own file
  ppc4xx: Make MAL emulation more generic
  ppc4xx: Move MAL from ppc405_uc to ppc4xx_devs
  spapr_iommu: Realloc guest visible TCE table when hot(un)plugging vfio-pci
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-08 14:44:44 +01:00
Marc-André Lureau
6f6f4aec74 fw_cfg: rename read callback
The callback is called on select.

Furthermore, the next patch introduced a new callback, so rename the
function type with a generic name.

Signed-off-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>
2017-09-08 16:15:17 +03:00
Mark Cave-Ayland
8b8849844f pci: add reserved slot check to do_pci_register_device()
Add a new slot_reserved_mask bitmask to PCIBus indicating whether or not each
PCI slot on the bus is reserved. Ensure that it is initialised to zero to
maintain the existing behaviour that all slots are available by default, and
add the additional check with appropriate error reporting to
do_pci_register_device().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-09-08 16:15:17 +03:00