Commit Graph

41014 Commits

Author SHA1 Message Date
Markus Armbruster
0bdaa3a429 memory: Fix bad error handling in memory_region_init_ram_ptr()
Commit ef701d7 screwed up handling of out-of-memory conditions.
Before the commit, we report the error and exit(1), in one place.  The
commit lifts the error handling up the call chain some, to three
places.  Fine.  Except it uses &error_abort in these places, changing
the behavior from exit(1) to abort(), and thus undoing the work of
commit 3922825 "exec: Don't abort when we can't allocate guest
memory".

The previous two commits fixed one of the three places, another one
was fixed in commit 33e0eb5.  This commit fixes the third one.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-5-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:39:39 +02:00
Markus Armbruster
df8abec8cb loader: Fix memory_region_init_resizeable_ram() error handling
Commit ef701d7 screwed up handling of out-of-memory conditions.
Before the commit, we report the error and exit(1), in one place.  The
commit lifts the error handling up the call chain some, to three
places.  Fine.  Except it uses &error_abort in these places, changing
the behavior from exit(1) to abort(), and thus undoing the work of
commit 3922825 "exec: Don't abort when we can't allocate guest
memory".

The previous commit fixed up uses of memory_region_init_ram().  One of
them was replaced by memory_region_init_resizeable_ram() [sic!] in
commit a166614, so Coccinelle missed it.  Fix it up.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-4-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:39:35 +02:00
Markus Armbruster
f8ed85ac99 Fix bad error handling after memory_region_init_ram()
Symptom:

    $ qemu-system-x86_64 -m 10000000
    Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456:
    upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory
    Aborted (core dumped)

Root cause: commit ef701d7 screwed up handling of out-of-memory
conditions.  Before the commit, we report the error and exit(1), in
one place, ram_block_add().  The commit lifts the error handling up
the call chain some, to three places.  Fine.  Except it uses
&error_abort in these places, changing the behavior from exit(1) to
abort(), and thus undoing the work of commit 3922825 "exec: Don't
abort when we can't allocate guest memory".

The three places are:

* memory_region_init_ram()

  Commit 4994653 (right after commit ef701d7) lifted the error
  handling further, through memory_region_init_ram(), multiplying the
  incorrect use of &error_abort.  Later on, imitation of existing
  (bad) code may have created more.

* memory_region_init_ram_ptr()

  The &error_abort is still there.

* memory_region_init_rom_device()

  Doesn't need fixing, because commit 33e0eb5 (soon after commit
  ef701d7) lifted the error handling further, and in the process
  changed it from &error_abort to passing it up the call chain.
  Correct, because the callers are realize() methods.

Fix the error handling after memory_region_init_ram() with a
Coccinelle semantic patch:

    @r@
    expression mr, owner, name, size, err;
    position p;
    @@
            memory_region_init_ram(mr, owner, name, size,
    (
    -                              &error_abort
    +                              &error_fatal
    |
                                   err@p
    )
                                  );
    @script:python@
        p << r.p;
    @@
    print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column)

When the last argument is &error_abort, it gets replaced by
&error_fatal.  This is the fix.

If the last argument is anything else, its position is reported.  This
lets us check the fix is complete.  Four positions get reported:

* ram_backend_memory_alloc()

  Error is passed up the call chain, ultimately through
  user_creatable_complete().  As far as I can tell, it's callers all
  handle the error sanely.

* fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize()

  DeviceClass.realize() methods, errors handled sanely further up the
  call chain.

We're good.  Test case again behaves:

    $ qemu-system-x86_64 -m 10000000
    qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
    [Exit 1 ]

The next commits will repair the rest of commit ef701d7's damage.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:39:29 +02:00
Markus Armbruster
a29a37b994 error: New error_fatal
Similar to error_abort, but doesn't report where the error was
created, and terminates the process with exit(1) rather than abort().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-2-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:38:08 +02:00
Markus Armbruster
4f966768ac MAINTAINERS: Add "Error reporting" entry
Error reporting work has been flowing through my tree for a while.
Time for MAINTAINERS to catch up.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1442057396-21989-1-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:34:39 +02:00
Eric Blake
88e2ce2915 error: Copy location information in error_copy()
Commit 1e9b65bb forgot to propagate source information to copied
errors.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1441902890-23064-1-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-09-18 14:34:39 +02:00
Eric Blake
50b7b000c9 hmp: Allow for error message hints on HMP
Commits 7216ae3d and d2828429 disabled some error message hints,
all because a change to use modern error reporting meant that the
hint would be output prior to the actual error.  Fix this by making
hints a first-class member of Error.

For example, we are now back to the pleasant:

 $ qemu-system-x86_64 --nodefaults -S --vnc :0 --chardev null,id=,
 qemu-system-x86_64: --chardev null,id=,: Parameter 'id' expects an identifier
 Identifiers consist of letters, digits, '-', '.', '_', starting with a letter.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1441901956-21991-1-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-09-18 14:34:39 +02:00
Stefan Hajnoczi
615cf669b5 error: only prepend timestamp on stderr
The -msg timestamp=on option prepends a timestamp to error messages.
This is useful on stderr where it allows users to identify when an error
was raised.

Timestamps do not make sense on the monitor since error_report() is
called in response to a synchronous monitor command and the user already
knows "when" the command was issued.  Additionally, the rest of the
monitor conversation lacks timestamps so the error timestamp cannot be
correlated with other activity.

Only prepend timestamps on stderr.  This fixes libvirt's 'drive_del'
processing, which did not expect a timestamp.  Other QEMU monitor
clients are probably equally confused by timestamps on monitor error
messages.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Frank Schreuder <fschreuder@transip.nl>
Cc: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <1439212541-16997-1-git-send-email-stefanha@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Frank Schreuder <fschreuder@transip.nl>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-09-18 14:34:39 +02:00
Juan Quintela
16a1b6e97c target-cris: update CPU state save/load to use VMStateDescription
Update the CRIS CPU state save/load to use a VMStateDescription struct
rather than cpu_save/cpu_load functions.

Have to define TLBSet struct.
Multidimensional arrays in C are a mess, just unroll them.

Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM:
 * expand commit message a little since it's no longer one patch in
   a 35-patch series
 * add header/copyright comment to machine.c; credited copyright is
   Red Hat and author is Juan, since this commit gives the file all-new
   contents; license is LGPL-2-or-later, to match other target-cris code
 * remove hardcoded tab
 * add fields for locked_irq, interrupt_vector, fault_vector, trap_vector
 * drop minimum_version_id_old fields
 * bump version_id to 2 as we are not compatible with old state format
 * remove unnecessary hw/boards.h include
 * update to register via dc->vmsd]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2015-09-17 14:31:38 +01:00
Peter Maydell
cc450bfdc0 -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

# gpg: Signature made Thu 17 Sep 2015 12:43:56 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/net-pull-request:
  net: smc91c111: flush packets on RCR register changes
  net: smc91c111: gate can_receive() on rx FIFO having a slot
  net: smc91c111: guard flush_queued_packets() on can_rx()
  MAINTAINERS: Stefan will not maintain net subsystem

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-17 13:07:50 +01:00
Peter Crosthwaite
271a234a23 net: smc91c111: flush packets on RCR register changes
The SOFT_RST or RXEN in the control register can be used as a condition
to unblock the net layer via can_receive(). So check for possible
flushes on RCR changes. This will drop all pending packets on soft
reset or disable which is the functional intent of the can_receive()
logic.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Message-id: b114d4c96f4afbdaa15f1361d9c07e3021755915.1441873621.git.crosthwaite.peter@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-09-17 12:36:03 +01:00
Peter Crosthwaite
e62cb54cd5 net: smc91c111: gate can_receive() on rx FIFO having a slot
Return false from can_receive() when the FIFO doesn't have a free RX
slot. This fixes a bug in the current code where the allocated buffer
is freed before the fifo pop, triggering a premature flush of queued RX
packets. It also will handle a corner case, where the guest manually
frees the allocated buffer before popping the rx FIFO (hence it is not
enough to just delay the flush_queued_packets()).

Reported-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Message-id: 97bfdfc5cbce0bd5e0cbbbff35ce7a1bf6f8603d.1441873621.git.crosthwaite.peter@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-09-17 12:36:03 +01:00
Peter Crosthwaite
8d06b14927 net: smc91c111: guard flush_queued_packets() on can_rx()
Check that the core can once again receive packets before asking the
net layer to do a flush. This will make it more convenient to flush
packets when adding new conditions to can_receive.

Add missing if braces while moving the can_receive() core code.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Message-id: 92e15e12a6964274f4bc0eb71b61a7d94326f6c6.1441873621.git.crosthwaite.peter@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-09-17 12:36:03 +01:00
Peter Maydell
1c9f03b81c * Linux header update and cleanup
* Support for HyperV crash report
 * Cleanup of target-specific HMP commands
 * Multiarch batch
 * Checkpatch fix for Perl 5.22
 * NBD fix
 * Revert incorrect commit 5243722376
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Linux header update and cleanup
* Support for HyperV crash report
* Cleanup of target-specific HMP commands
* Multiarch batch
* Checkpatch fix for Perl 5.22
* NBD fix
* Revert incorrect commit 5243722376

# gpg: Signature made Wed 16 Sep 2015 16:39:01 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (24 commits)
  nbd: release exp->blk after all clients are closed
  checkpatch: Escape left braces in regex
  monitor: uninclude cpu_ldst
  include/exec: Move cputlb exec.c defs out
  cputlb: Change tlb_set_dirty() arg to cpu
  cputlb: move CPU_LOOP() for tlb_reset() to exec.c
  translate: move real_host_page setting to -common
  tcg: Move tci_tb_ptr to -common
  tcg: split tcg_op_defs to -common
  translate-all: Move tcg_handle_interrupt() to -common
  cpu-exec: Migrate some generic fns to cpu-exec-common
  qemu-char: Use g_new() & friends where that makes obvious sense
  monitor: added generation of documentation for hmp-commands-info.hx
  hmp-commands.hx: fix end of table info
  monitor: remove target-specific code from monitor.c
  hmp-commands-info: move info_cmds content out of monitor.c
  i386/kvm: Hyper-v crash msrs set/get'ers and migration
  kvm: Add kvm system event crash handler
  cpu: Add crash_occurred flag into CPUState
  target-i386: move asm-x86/hyperv.h to standard-headers
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-16 18:06:54 +01:00
Wen Congyang
d626834849 nbd: release exp->blk after all clients are closed
If the socket fd is shutdown, there may be some data which is received before
shutdown. We will read the data and do read/write in nbd_trip(). But the exp's
blk is NULL, and it will cause qemu crashed.

Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-Id: <55F929E2.1020501@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Fam Zheng
04f2562f8e checkpatch: Escape left braces in regex
Latest perl now deprecates "{" literal in regex and print warnings like
"unescaped left brace in regex is deprecated".  Add escape to keep it
happy.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1441969656-2640-1-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
e6b65fe1c2 monitor: uninclude cpu_ldst
This header is non-needed anymore and wont work in multi-arch where
this service is not provided to core code.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <4e96622ab5320603829b6f94b8c4e94d573d34fc.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
dfccc76023 include/exec: Move cputlb exec.c defs out
Move the architecture agnostic function prototypes for exec.c out of
cputlb.h to exec-all.h. This allows hiding of the arch specific
cputlb.h from exec.c which should be getting close to having no
architecture specifics. Prepares support for multi-arch, which will have
a minimal cpu.h that services exec.c but not cputlb.h.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <b4fe754c58c860315e35d44430c26b1c967ce2c9.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
bcae01e468 cputlb: Change tlb_set_dirty() arg to cpu
Change tlb_set_dirty() to accept a CPU instead of an env pointer. This
allows for removal of another CPUArchState usage from prototypes that
need to be QOMified.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <d2b1dcbe7945112989861d8ba7369449c11cc273.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
9a13565d52 cputlb: move CPU_LOOP() for tlb_reset() to exec.c
To prepare for multi-arch, cputlb.c should only have awareness of one
single architecture. This means it should not have access to the full
CPU lists which may be heterogeneous. Instead, push the CPU_LOOP() up
to the one and only caller in exec.c.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <db06dc6c49f8970caaf116d0385f00ee10a56f2f.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
5f12a788c0 translate: move real_host_page setting to -common
Move the size and mask globals for the "real" host page size to
translate-common. This is to allow system-level code to use
REAL_HOST_PAGE_ALIGN and friends in builds which hide translate-all
behind arch-obj.

Cc: dgilbert@redhat.com
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <b437638691f044bc690a7f03b1240c8b0f34ab57.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
162e992270 tcg: Move tci_tb_ptr to -common
This requires global visibility to common code. Move to tcg-common.

Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <cb0340eba225ab4945aa6cf7c9013f33aa05bcf8.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
7d8f787d9d tcg: split tcg_op_defs to -common
tcg_op_defs (and the _max) are both needed by the TCI disassembler. For
multi-arch, tcg.c will be multiple-compiled (arch-obj) with its symbols
hidden from common code. So split the definition off to new file,
tcg-common.c which will remain a regular obj-y for use by both the TCI
disas as well as the multiple tcg.c's.

Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <4b607425886d85aee65878e4935dfad46b3e6085.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
9b68a7754a translate-all: Move tcg_handle_interrupt() to -common
Move this function to common code. It has no arch specific
dependencies. Prepares support for multi-arch where the translate-all
interface needs to be virtualised. One less thing to virtualise.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <44a7c73604ed2552af47ed02b047b6a772b683e0.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Peter Crosthwaite
5abf9495ca cpu-exec: Migrate some generic fns to cpu-exec-common
The goal is to split the functions such that cpu-exec is CPU specific
content, while cpus-exec-common.c is generic code only. The function
interface to cpu-exec needs to be virtualised to prepare support for
multi-arch and moving these definitions out saves bloating the QOM
interface. So move these definitions out of cpu-exec to a new module,
cpu-exec-common.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-Id: <3cefeb3fbbb33031670951a0e74de2778529da3f.1441614289.git.crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Markus Armbruster
2d528d45ec qemu-char: Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n).  It's also safer,
for two reasons.  One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.

This commit only touches allocations with size arguments of the form
sizeof(T).  Same Coccinelle semantic patch as in commit b45c03f.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1442231643-23630-1-git-send-email-armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Pavel Butsykin
2cd8af2d44 monitor: added generation of documentation for hmp-commands-info.hx
It will be easier if you need to add info-commands to edit
only hmp-commands-info.hx, before this had to edit monitor.c and
hmp-commands.hx.

From the build point of view all documentation is saved into
qemu-monitor-info.texi which from now on is used for all user
documentation building.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-5-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Pavel Butsykin
70703344de hmp-commands.hx: fix end of table info
The table info(information about the system state) closes earlier
and some of its elements are outside(trace-events, rocker, etc). This
can be confusing and lead to additional bugs.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-4-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:33 +02:00
Pavel Butsykin
bf95728400 monitor: remove target-specific code from monitor.c
Move target-specific code out of /monitor.c to /target-*/monitor.c,
this will avoid code cluttering and using random ifdeffery.  The solution
is quite simple, but solves the issue of the separation of target-specific
code from monitor.

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-3-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Pavel Butsykin
da76ee76f7 hmp-commands-info: move info_cmds content out of monitor.c
For moving target- and device-specific code  from monitor.c,
to beginning we move info_cmds content to hmp-commands-info.hx

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1441899541-1856-2-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Andrey Smetanin
f2a53c9e05 i386/kvm: Hyper-v crash msrs set/get'ers and migration
KVM Hyper-V based guests can notify hypervisor about
occurred guest crash by writing into Hyper-V crash MSR's.
This patch does handling and migration of HV_X64_MSR_CRASH_P0-P4,
HV_X64_MSR_CRASH_CTL msrs. User can enable these MSR's by
'hv-crash' option.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1435924905-8926-13-git-send-email-den@openvz.org>
[Folks, stop abrviating variable names!!! Also fix compilation on
 non-Linux/x86. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Andrey Smetanin
7c207b9046 kvm: Add kvm system event crash handler
KVM kernel can send guest crash events into userspace.
Appropriate guest crash handler is called when kernel guest
crash event received. Guest crash event recognized by a
KVM_SYSTEM_EVENT_CRASH type of system event.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1435924905-8926-11-git-send-email-den@openvz.org>
[Rebase: add lock/unlock iothread around qemu_system_guest_panicked - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Andrey Smetanin
bac05aa9a7 cpu: Add crash_occurred flag into CPUState
CPUState::crash_occurred field inside CPUState marks
that guest crash occurred. This value is added into
cpu common migration subsection.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Andreas Färber <afaerber@suse.de>
Message-Id: <1435924905-8926-12-git-send-email-den@openvz.org>
[Document the new field. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Paolo Bonzini
73aa529a48 target-i386: move asm-x86/hyperv.h to standard-headers
The Hyper-V definitions are an industry standard and can be used
from code that is not KVM-specific.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Paolo Bonzini
eddb4de3cc update-linux-headers: copy standard-headers files one by one
cp_virtio is called for both the asm-s390/ and linux/ directories,
so it looks for pci_regs.h and input.h files in asm-s390/ too.  This
makes little sense.  In the next patch we will have the opposite
problem; we want to add asm-x86/hyperv.h, and there's also a
linux/hyperv.h file with unwanted dependencies on additional Linux
uapi headers.  We do not want to copy linux/hyperv.h.

The solution is to make cp_virtio (now renamed to cp_portable) copy
one file only, instead of using the "find" command, and call it multiple
times.  The new function is really just a reindentation of the old one.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Paolo Bonzini
120758fba4 update Linux headers to 4.3-rc1
The update to 4.2 was reviewed by Michael S. Tsirkin and Cornelia
Huck.  The further update to 4.3-rc1 only touches KVM files.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Paolo Bonzini
84090bbce9 pci: remove Link Training error from AER error list
The spec says:

    Undefined – The value read from this bit is
    undefined. In previous versions of this
    specification, this bit was used to indicate a Link
    Training Error. System software must ignore the
    value read from this bit. System software is
    permitted to write any value to this bit.

Do not allow injecting it.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Paolo Bonzini
05620f85e9 Revert "rcu: init rcu_registry_lock after fork"
This reverts commit 5243722376.
The patch forgot about rcu_sync_lock and was committed by mistake.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-16 17:33:32 +02:00
Peter Maydell
3c4698d0b5 Exception handling improvments from Pavel Dovgalyuk.
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Merge remote-tracking branch 'remotes/rth/tags/pull-target-i386-20150915' into staging

Exception handling improvments from Pavel Dovgalyuk.

# gpg: Signature made Tue 15 Sep 2015 20:36:14 BST using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-target-i386-20150915:
  target-i386: exception handling for other helper functions
  target-i386: exception handling for seg_helper functions
  target-i386: exception handling for memory helpers
  target-i386: exception handling for div instructions
  target-i386: exception handling for FPU instructions
  target-i386: introduce new raise_exception functions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-16 16:19:49 +01:00
Jason Wang
5fc51cc3dd MAINTAINERS: Stefan will not maintain net subsystem
Talked with Stefan, he will not maintain net subsystem.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-id: 1442372730-11360-1-git-send-email-jasowang@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-09-16 12:07:11 +01:00
Pavel Dovgalyuk
4054cdec04 target-i386: exception handling for other helper functions
This patch fixes exception handling for other helper functions.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:31:59 -07:00
Pavel Dovgalyuk
100ec09919 target-i386: exception handling for seg_helper functions
This patch fixes exception handling for seg_helper functions.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:31:59 -07:00
Pavel Dovgalyuk
2afbdf8480 target-i386: exception handling for memory helpers
This patch fixes exception handling for memory helpers
and removes obsolete PC update from translate.c.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:31:49 -07:00
Pavel Dovgalyuk
cc33c5d66b target-i386: exception handling for div instructions
This patch fixes exception handling for div instructions
and removes obsolete PC update from translate.c.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:28:16 -07:00
Pavel Dovgalyuk
6cad09d2f7 target-i386: exception handling for FPU instructions
This patch fixes exception handling for FPU instructions
and removes obsolete PC update from translate.c.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:28:16 -07:00
Pavel Dovgalyuk
9198009529 target-i386: introduce new raise_exception functions
This patch introduces new versions of raise_exception functions
that receive TB return address as an argument.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 12:28:16 -07:00
Peter Maydell
1a3abef74b TileGX basic instructions
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Merge remote-tracking branch 'remotes/rth/tags/pull-tile-20150915' into staging

TileGX basic instructions

# gpg: Signature made Tue 15 Sep 2015 15:57:08 BST using RSA key ID 4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"

* remotes/rth/tags/pull-tile-20150915: (35 commits)
  target-tilegx: Handle v1shl, v1shru, v1shrs
  target-tilegx: Handle v1shli, v1shrui
  target-tilegx: Handle v4int_l/h
  target-tilegx: Handle atomic instructions
  target-tilegx: Handle mtspr, mfspr
  target-tilegx: Handle v1cmpeq, v1cmpne
  target-tilegx: Handle mask instructions
  target-tilegx: Handle scalar multiply instructions
  target-tilegx: Handle conditional move instructions
  target-tilegx: Handle shift instructions
  target-tilegx: Handle bitfield instructions
  target-tilegx: Implement system and memory management instructions
  target-tilegx: Handle comparison instructions
  target-tilegx: Handle conditional branch instructions
  target-tilegx: Handle unconditional jump instructions
  target-tilegx: Handle post-increment load and store instructions
  target-tilegx: Handle basic load and store instructions
  target-tilegx: Handle most bit manipulation instructions
  target-arm: Use new revbit functions
  host-utils: Add revbit functions
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-15 17:24:28 +01:00
Richard Henderson
461aa6783e target-tilegx: Handle v1shl, v1shru, v1shrs
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 07:45:34 -07:00
Richard Henderson
3be19e8c83 target-tilegx: Handle v1shli, v1shrui
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 07:45:34 -07:00
Richard Henderson
5151c69abc target-tilegx: Handle v4int_l/h
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15 07:45:34 -07:00