Commit Graph

57217 Commits

Author SHA1 Message Date
Emilio G. Cota
5ca66278c8 arm/translate-a64: mark path as unreachable to eliminate warning
Fixes the following warning when compiling with gcc 5.4.0 with -O1
optimizations and --enable-debug:

target/arm/translate-a64.c: In function ‘aarch64_tr_translate_insn’:
target/arm/translate-a64.c:2361:8: error: ‘post_index’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
     if (!post_index) {
        ^
target/arm/translate-a64.c:2307:10: note: ‘post_index’ was declared here
     bool post_index;
          ^
target/arm/translate-a64.c:2386:8: error: ‘writeback’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
     if (writeback) {
        ^
target/arm/translate-a64.c:2308:10: note: ‘writeback’ was declared here
     bool writeback;
          ^

Note that idx comes from selecting 2 bits, and therefore its value
can be at most 3.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1510087611-1851-1-git-send-email-cota@braap.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-13 13:55:24 +00:00
Peter Maydell
f291910db6 nbd patches for 2017-11-09
- Vladimir Sementsov-Ogievskiy: nbd/server: fix nbd_negotiate_handle_info
 - Eric Blake: 0/7 various NBD fixes for 2.11
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 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
 
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Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2017-11-09' into staging

nbd patches for 2017-11-09

- Vladimir Sementsov-Ogievskiy: nbd/server: fix nbd_negotiate_handle_info
- Eric Blake: 0/7 various NBD fixes for 2.11

# gpg: Signature made Thu 09 Nov 2017 16:56:58 GMT
# gpg:                using RSA key 0xA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2017-11-09:
  nbd/server: Fix structured read of length 0
  nbd-client: Stricter enforcing of structured reply spec
  nbd-client: Short-circuit 0-length operations
  nbd: Fix struct name for structured reads
  nbd/client: Nicer trace of structured reply
  nbd-client: Refuse read-only client with BDRV_O_RDWR
  nbd-client: Fix error message typos
  nbd/server: fix nbd_negotiate_handle_info

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-13 13:13:12 +00:00
Peter Maydell
508ba0f7e2 s390x changes: let pci devices start out in a usable state, and make
RISBGN work in tcg.
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20171109' into staging

s390x changes: let pci devices start out in a usable state, and make
RISBGN work in tcg.

# gpg: Signature made Thu 09 Nov 2017 15:27:21 GMT
# gpg:                using RSA key 0xDECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>"
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20171109:
  target/s390x: Finish implementing RISBGN
  s390x/pci: let pci devices start in configured mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-13 11:41:47 +00:00
Peter Maydell
6b8d0ac031 Capstone fixes for 2.11
-----BEGIN PGP SIGNATURE-----
 
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 =j6B5
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/rth/tags/pull-cap-20171109' into staging

Capstone fixes for 2.11

# gpg: Signature made Thu 09 Nov 2017 07:49:25 GMT
# gpg:                using RSA key 0x64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-cap-20171109:
  Makefile: Capstone: Add support for cross compile ranlib
  disas: Dump insn bytes along with capstone disassembly

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-13 10:05:18 +00:00
Peter Maydell
53fb28d10d Pull request
v2:
  * v1 emails 2/3 and 3/3 weren't sent due to an email failure
  * Included Sergio's updated wording in the commit description
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 =YBHk
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

v2:
 * v1 emails 2/3 and 3/3 weren't sent due to an email failure
 * Included Sergio's updated wording in the commit description

# gpg: Signature made Wed 08 Nov 2017 19:12:01 GMT
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  util/async: use atomic_mb_set in qemu_bh_cancel
  tests-aio-multithread: fix /aio/multi/schedule race condition

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-10 17:25:15 +00:00
Peter Maydell
4ffa88c99c Merge qcrypto 2017/11/08 v1
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 xF15fh/59fUYE/yP7g2w
 =+xi3
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/berrange/tags/pull-qcrypto-2017-11-08-1' into staging

Merge qcrypto 2017/11/08 v1

# gpg: Signature made Wed 08 Nov 2017 11:06:38 GMT
# 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

* remotes/berrange/tags/pull-qcrypto-2017-11-08-1:
  crypto: afalg: fix a NULL pointer dereference
  tests: Run the luks tests in test-crypto-block only if encryption is available

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-10 16:01:35 +00:00
Peter Maydell
6058bfb00a ppc patch queue 2017-11-08
Here's the current set of accumulated ppc patches for qemu-2.11.
 Since we're now in hard freeze these are all bugfixes (although some
 fix a bug by way of a cleanup).
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.11-20171108' into staging

ppc patch queue 2017-11-08

Here's the current set of accumulated ppc patches for qemu-2.11.
Since we're now in hard freeze these are all bugfixes (although some
fix a bug by way of a cleanup).

# gpg: Signature made Wed 08 Nov 2017 08:10:38 GMT
# 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-2.11-20171108:
  e500: ppce500_init_mpic() return device instead of IRQ array
  hw/display/sm501: Fix comment in sm501_sysbus_class_init()
  ppc: fix setting of compat mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-10 15:05:56 +00:00
Eric Blake
ef8c887ee0 nbd/server: Fix structured read of length 0
The NBD spec was recently clarified to state that a read of length 0
should not be attempted by a compliant client; but that a server must
still handle it correctly in an unspecified manner (that is, either
a successful no-op or an error reply, but not a crash) [1].  However,
it also implies that NBD_REPLY_TYPE_OFFSET_DATA must have a non-zero
payload length, but our existing code was replying with a chunk
that a picky client could reject as invalid because it was missing
a payload (our own client implementation was recently patched to be
that picky, after first fixing it to not send 0-length requests).

We are already doing successful no-ops for 0-length writes and for
non-structured reads; so for consistency, we want structured reply
reads to also be a no-op.  The easiest way to do this is to return
a NBD_REPLY_TYPE_NONE chunk; this is best done via a new helper
function (especially since future patches for other structured
replies may benefit from using the same helper).

[1] https://github.com/NetworkBlockDevice/nbd/commit/ee926037

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-8-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:25:11 -06:00
Eric Blake
b4176cb314 nbd-client: Stricter enforcing of structured reply spec
Ensure that the server is not sending unexpected chunk lengths
for either the NONE or the OFFSET_DATA chunk, nor unexpected
hole length for OFFSET_HOLE.  This will flag any server as
broken that responds to a zero-length read with an OFFSET_DATA
(what our server currently does, but that's about to be fixed)
or with OFFSET_HOLE, even though we previously fixed our client
to never be able to send such a request over the wire.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-7-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:22:26 -06:00
Eric Blake
9d8f818cde nbd-client: Short-circuit 0-length operations
The NBD spec was recently clarified to state that clients should
not send 0-length requests to the server, as the server behavior
is undefined [1].  We know that qemu-nbd's behavior is a successful
no-op (once it has filtered for read-only exports), but other NBD
implementations might return an error.  To avoid any questionable
server implementations, it is better to just short-circuit such
requests on the client side (we are relying on the block layer to
already filter out requests such as invalid offset, write to a
read-only volume, and so forth); do the short-circuit as late as
possible to still benefit from protections from assertions that
the block layer is not violating our assumptions.

[1] https://github.com/NetworkBlockDevice/nbd/commit/ee926037

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-6-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:18:31 -06:00
Eric Blake
efdc0c103d nbd: Fix struct name for structured reads
A closer read of the NBD spec shows that a structured reply chunk
for a hole is not quite identical to the prefix of a data chunk,
because the hole has to also send a 32-bit size field.  Although
we do not yet send holes, we should fix the misleading information
in our header and make it easier for a future patch to support
sparse reads.  Messed up in commit bae245d1.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-5-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:17:12 -06:00
Eric Blake
079d3266c7 nbd/client: Nicer trace of structured reply
It's useful to know which structured reply chunk is being processed.
Missed in commit d2febedb.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-4-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:16:45 -06:00
Eric Blake
1104d83c72 nbd-client: Refuse read-only client with BDRV_O_RDWR
The NBD spec says that clients should not try to write/trim to
an export advertised as read-only by the server.  But we failed
to check that, and would allow the block layer to use NBD with
BDRV_O_RDWR even when the server is read-only, which meant we
were depending on the server sending a proper EPERM failure for
various commands, and also exposes a leaky abstraction: using
qemu-io in read-write mode would succeed on 'w -z 0 0' because
of local short-circuiting logic, but 'w 0 0' would send a
request over the wire (where it then depends on the server, and
fails at least for qemu-nbd but might pass for other NBD
implementations).

With this patch, a client MUST request read-only mode to access
a server that is doing a read-only export, or else it will get
a message like:

can't open device nbd://localhost:10809/foo: request for write access conflicts with read-only export

It is no longer possible to even attempt writes over the wire
(including the corner case of 0-length writes), because the block
layer enforces the explicit read-only request; this matches the
behavior of qcow2 when backed by a read-only POSIX file.

Fix several iotests to comply with the new behavior (since
qemu-nbd of an internal snapshot, as well as nbd-server-add over QMP,
default to a read-only export, we must tell blockdev-add/qemu-io to
set up a read-only client).

CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-3-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:10:17 -06:00
Eric Blake
e659fb3b99 nbd-client: Fix error message typos
Provide missing spaces that are required when using string
concatenation to break error messages across source lines.
Introduced in commit f140e300.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20171108215703.9295-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2017-11-09 10:09:38 -06:00
Richard Henderson
fdaae35143 target/s390x: Finish implementing RISBGN
We added the entry to insn-data.def, but failed to update op_risbg
to match.  No need to special-case the imask inversion, since that
is already ~0 for RISBG (and now RISBGN).

Fixes: 375ee58bed
Fixes: https://bugs.launchpad.net/qemu/+bug/1701798 (s390x part)
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20171107145546.767-1-richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-11-09 10:36:06 +01:00
Alistair Francis
9f81aeb5da Makefile: Capstone: Add support for cross compile ranlib
When cross compiling QEMU for Windows we need to specify the cross
version of ranlib to avoid build errors when building capstone. This
patch ensures we use the same cross prefix on ranlib as other toolchain
components.

- Fedora23 mingw
- RHEL-7.2 with mingw packages from epel:

   LINK    qemu-img.exe
 build-win64/capstone/capstone.lib: error adding symbols: Archive has no
index; run ranlib to add one
 collect2: error: ld returned 1 exit status

$ x86_64-w64-mingw32-ar --version
GNU ar (GNU Binutils) 2.25

Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <e457d4e906dceea4de6c3431813a06b137c1ab9c.1510103351.git.alistair.francis@xilinx.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-11-09 08:47:14 +01:00
Richard Henderson
15fa1a0ae0 disas: Dump insn bytes along with capstone disassembly
This feature is present for some targets in the bfd disassembler(s).
Implement it generically for all capstone users.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-11-09 08:46:38 +01:00
Vladimir Sementsov-Ogievskiy
46321d6b5f nbd/server: fix nbd_negotiate_handle_info
namelen should be here, length is unrelated, and always 0 at this
point.  Broken in introduction in commit f37708f6, but mostly
harmless (replying with '' as the name does not violate protocol,
and does not confuse qemu as the nbd client since our implementation
does not ask for the name; but might confuse some other client that
does ask for the name especially if the default export is different
than the export name being queried).

Adding an assert makes it obvious that we are not skipping any bytes
in the client's message, as well as making it obvious that we were
using the wrong variable.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
CC: qemu-stable@nongnu.org
Message-Id: <20171101154204.27146-1-vsementsov@virtuozzo.com>
[eblake: improve commit message, squash in assert addition]
Signed-off-by: Eric Blake <eblake@redhat.com>
2017-11-08 16:32:26 -06:00
Sergio Lopez
ef6dada8b4 util/async: use atomic_mb_set in qemu_bh_cancel
Commit b7a745d added a qemu_bh_cancel call to the completion function
as an optimization to prevent it from unnecessarily rescheduling itself.

This completion function is scheduled from worker_thread, after setting
the state of a ThreadPoolElement to THREAD_DONE.

This was considered to be safe, as the completion function restarts the
loop just after the call to qemu_bh_cancel. But, as this loop lacks a HW
memory barrier, the read of req->state may actually happen _before_ the
call, seeing it still as THREAD_QUEUED, and ending the completion
function without having processed a pending TPE linked at pool->head:

         worker thread             |            I/O thread
------------------------------------------------------------------------
                                   | speculatively read req->state
req->state = THREAD_DONE;          |
qemu_bh_schedule(p->completion_bh) |
  bh->scheduled = 1;               |
                                   | qemu_bh_cancel(p->completion_bh)
                                   |   bh->scheduled = 0;
                                   | if (req->state == THREAD_DONE)
                                   |   // sees THREAD_QUEUED

The source of the misunderstanding was that qemu_bh_cancel is now being
used by the _consumer_ rather than the producer, and therefore now needs
to have acquire semantics just like e.g. aio_bh_poll.

In some situations, if there are no other independent requests in the
same aio context that could eventually trigger the scheduling of the
completion function, the omitted TPE and all operations pending on it
will get stuck forever.

[Added Sergio's updated wording about the HW memory barrier.
--Stefan]

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-id: 20171108063447.2842-1-slp@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-11-08 19:09:15 +00:00
Longpeng
f1710638ed crypto: afalg: fix a NULL pointer dereference
Test-crypto-hash calls qcrypto_hash_bytesv/digest/base64 with
errp=NULL, this will cause a NULL pointer dereference if afalg_driver
doesn't support requested algos:

    ret = qcrypto_hash_afalg_driver.hash_bytesv(alg, iov, niov,
                                                result, resultlen,
                                                errp);
    if (ret == 0) {
        return ret;
    }

    error_free(*errp);  // <--- here

Because the error message is thrown away immediately, we should
just pass NULL to hash_bytesv(). There is also the same problem in
afalg-backend cipher & hmac, let's fix them together.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Longpeng <longpeng2@huawei.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-11-08 11:05:09 +00:00
Thomas Huth
b417a7624c tests: Run the luks tests in test-crypto-block only if encryption is available
The test-crypto-block currently fails if encryption has not been
compiled into QEMU:

TEST: tests/test-crypto-block... (pid=22231)
  /crypto/block/qcow:                                                  OK
  /crypto/block/luks/default:
  Unexpected error in qcrypto_pbkdf2() at qemu/crypto/pbkdf-stub.c:41:
FAIL
GTester: last random seed: R02Sbbb5b6f299c6727f41bb50ba4aa6ef5c
(pid=22237)
  /crypto/block/luks/aes-256-cbc-plain64:
  Unexpected error in qcrypto_pbkdf2() at qemu/crypto/pbkdf-stub.c:41:
FAIL
GTester: last random seed: R02S3e27992a5ab4cc95e141c4ed3c7f0d2e
(pid=22239)
  /crypto/block/luks/aes-256-cbc-essiv:
  Unexpected error in qcrypto_pbkdf2() at qemu/crypto/pbkdf-stub.c:41:
FAIL
GTester: last random seed: R02S51b52bb02a66c42d8b331fd305384f53
(pid=22241)
FAIL: tests/test-crypto-block

So run the luks test only if the required encryption support is available.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-11-08 11:03:46 +00:00
Christian Borntraeger
2c28c49057 s390x/pci: let pci devices start in configured mode
Currently, to enable a pci device in the guest, the user has to issue
echo 1 > /sys/bus/pci/slots/00000000/power. This is not what people
expect. On an LPAR, the user can put a PCI device in configured or
deconfigured state via IOCDS. The "start in deconfigured state" can be
used for "sharing" a pci function across LPARs. This is not what we are
going to use in KVM, so always start configured.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Message-Id: <20171107175455.73793-2-borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2017-11-08 12:00:08 +01:00
Stefan Hajnoczi
fb0c43f34e tests-aio-multithread: fix /aio/multi/schedule race condition
test_multi_co_schedule_entry() set to_schedule[id] in the final loop
iteration before terminating the coroutine.  There is a race condition
where the main thread attempts to enter the terminating or terminated
coroutine when signalling coroutines to stop:

  atomic_mb_set(&now_stopping, true);
  for (i = 0; i < NUM_CONTEXTS; i++) {
      ctx_run(i, finish_cb, NULL);  <--- enters dead coroutine!
      to_schedule[i] = NULL;
  }

Make sure only to set to_schedule[id] if this coroutine really needs to
be scheduled!

Reported-by: "R.Nageswara Sastry" <nasastry@in.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20171106190233.1175-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-11-08 09:22:55 +00:00
Michael Davidsaver
c91c187f71 e500: ppce500_init_mpic() return device instead of IRQ array
Actual number of interrupt pins isn't known
in ppce500_init_mpic() so a hardcoded number
was used, which causes a crash with older openpic.

Instead, return the DeviceState* and change ppce500_init()
to call qdev_get_gpio_in() to get only the irq pins
which are needed.

Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-11-08 13:21:37 +11:00
Thomas Huth
79b217dedb hw/display/sm501: Fix comment in sm501_sysbus_class_init()
The "cannot_instantiate_with_device_add_yet" flag has been renamed
to "user_creatable" a while ago.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-11-08 13:21:37 +11:00
Greg Kurz
e4f0c6bb1a ppc: fix setting of compat mode
While trying to make KVM PR usable again, commit 5dfaa532ae introduced a
regression: the current compat_pvr value is passed to KVM instead of the
new one. This means that we always pass 0 instead of the max-cpu-compat
PVR during the initial machine reset. And at CAS time, we either pass
the PVR from the command line or even don't call kvmppc_set_compat() at
all, ie, the PCR will not be set as expected.

For example if we start a big endian fedora26 guest in power7 compat
mode on a POWER8 host, we get this in the guest:

$ cat /proc/cpuinfo
processor       : 0
cpu             : POWER7 (architected), altivec supported
clock           : 4024.000000MHz
revision        : 2.0 (pvr 004d 0200)

timebase        : 512000000
platform        : pSeries
model           : IBM pSeries (emulated by qemu)
machine         : CHRP IBM pSeries (emulated by qemu)
MMU             : Hash

but the guest can still execute POWER8 instructions, and the following
program succeeds:

int main()
{
        asm("vncipher 0,0,0"); // ISA 2.07 instruction
}

Let's pass the new compat_pvr to kvmppc_set_compat() and the program fails
with SIGILL as expected.

Reported-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-11-08 13:21:37 +11:00
Peter Maydell
b0fbe46ad8 Update version for v2.11.0-rc0 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 16:05:28 +00:00
Peter Maydell
5ca7a3cba4 Pull IO 2017/11/06 v2
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Merge remote-tracking branch 'remotes/berrange/tags/pull-2017-11-06-2' into staging

Pull IO 2017/11/06 v2

# gpg: Signature made Tue 07 Nov 2017 14:35:25 GMT
# 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

* remotes/berrange/tags/pull-2017-11-06-2:
  sockets: avoid leak of listen file descriptor

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 14:43:35 +00:00
Daniel P. Berrange
10a7b7e6fd sockets: avoid leak of listen file descriptor
If we iterate over the full port range without successfully binding+listening
on the socket, we'll try the next address, whereupon we overwrite the slisten
file descriptor variable without closing it.

Rather than having two places where we open + close socket FDs on different
iterations of nested for loops, re-arrange the code to always open+close
within the same loop iteration.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-11-07 14:10:20 +00:00
Peter Maydell
a4f0537db0 target-arm queue:
* arm_gicv3_its: Don't abort on table save failure
  * arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
  * translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
  * hw/arm: Mark the "fsl,imx31/25/6" devices with user_creatable = false
  * arm: implement cache/shareability attribute bits for PAR registers
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20171107' into staging

target-arm queue:
 * arm_gicv3_its: Don't abort on table save failure
 * arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
 * translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
 * hw/arm: Mark the "fsl,imx31/25/6" devices with user_creatable = false
 * arm: implement cache/shareability attribute bits for PAR registers

# gpg: Signature made Tue 07 Nov 2017 13:33:58 GMT
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20171107:
  hw/intc/arm_gicv3_its: Don't abort on table save failure
  hw/intc/arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
  translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
  hw/arm: Mark the "fsl,imx31" device with user_creatable = false
  hw/arm: Mark the "fsl,imx25" device with user_creatable = false
  hw/arm: Mark the "fsl,imx6" device with user_creatable = false
  arm: implement cache/shareability attribute bits for PAR registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:54:41 +00:00
Eric Auger
8a7348b5d6 hw/intc/arm_gicv3_its: Don't abort on table save failure
The ITS is not fully properly reset at the moment. Caches are
not emptied.

After a reset, in case we attempt to save the state before
the bound devices have registered their MSIs and after the
1st level table has been allocated by the ITS driver
(device BASER is valid), the first level entries are still
invalid. If the device cache is not empty (devices registered
before the reset), vgic_its_save_device_tables fails with -EINVAL.
This causes a QEMU abort().

Cc: qemu-stable@nongnu.org
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: wanghaibin <wanghaibin.wang@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:52 +00:00
Shanker Donthineni
3a575cd2c2 hw/intc/arm_gicv3_its: Fix the VM termination in vm_change_state_handler()
The commit cddafd8f35 ("hw/intc/arm_gicv3_its: Implement state save
/restore") breaks the backward compatibility with the older kernels
where vITS save/restore support is not available. The vmstate function
vm_change_state_handler() should not be registered if the running kernel
doesn't support ITS save/restore feature. Otherwise VM instance will be
killed whenever vmstate callback function is invoked.

Observed a virtual machine shutdown with QEMU-2.10+linux-4.11 when testing
the reboot command "virsh reboot <domain> --mode acpi" instead of reboot.

KVM Error: 'KVM_SET_DEVICE_ATTR failed: Group 4 attr 0x00000000000001'

Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1509712671-16299-1-git-send-email-shankerd@codeaurora.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:51 +00:00
Peter Maydell
3448d47b31 translate.c: Fix usermode big-endian AArch32 LDREXD and STREXD
For AArch32 LDREXD and STREXD, architecturally the 32-bit word at the
lowest address is always Rt and the one at addr+4 is Rt2, even if the
CPU is big-endian. Our implementation does these with a single
64-bit store, so if we're big-endian then we need to put the two
32-bit halves together in the opposite order to little-endian,
so that they end up in the right places. We were trying to do
this with the gen_aa32_frob64() function, but that is not correct
for the usermode emulator, because there there is a distinction
between "load a 64 bit value" (which does a BE 64-bit access
and doesn't need swapping) and "load two 32 bit values as one
64 bit access" (where we still need to do the swapping, like
system mode BE32).

Fixes: https://bugs.launchpad.net/qemu/+bug/1725267
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 1509622400-13351-1-git-send-email-peter.maydell@linaro.org
2017-11-07 13:03:51 +00:00
Thomas Huth
e4e05b7b3e hw/arm: Mark the "fsl,imx31" device with user_creatable = false
QEMU currently crashes when the user tries to instantiate the fsl,imx31
device manually:

$ aarch64-softmmu/qemu-system-aarch64 -M kzm -device fsl,,imx31
**
ERROR:/home/thuth/devel/qemu/tcg/tcg.c:538:tcg_register_thread:
 assertion failed: (n < max_cpus)
Aborted (core dumped)

The kzm board (which is the one that uses this CPU type) only supports
one CPU, and the realize function of the "fsl,imx31" device also uses
serial_hds[] directly, so this device clearly can not be instantiated
twice and thus we should mark it with user_creatable = false.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1509519537-6964-4-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:51 +00:00
Thomas Huth
5e0c7044b9 hw/arm: Mark the "fsl,imx25" device with user_creatable = false
QEMU currently crashes when the user tries to instantiate the fsl,imx25
device manually:

$ aarch64-softmmu/qemu-system-aarch64 -S -M imx25-pdk -device fsl,,imx25
**
ERROR:/home/thuth/devel/qemu/tcg/tcg.c:538:tcg_register_thread:
 assertion failed: (n < max_cpus)

The imx25-pdk board (which is the one that uses this CPU type) only
supports one CPU, and the realize function of the "fsl,imx25" device
also uses serial_hds[] directly, so this device clearly can not be
instantiated twice and thus we should mark it with user_creatable = 0.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1509519537-6964-3-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:51 +00:00
Thomas Huth
70fbd3c4bf hw/arm: Mark the "fsl,imx6" device with user_creatable = false
This device causes QEMU to abort if the user tries to instantiate it:

$ qemu-system-aarch64 -M sabrelite -smp 1,maxcpus=2 -device fsl,,imx6
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
qemu-system-aarch64: -device fsl,,imx6: Device 'serial0' is in use
Aborted (core dumped)

The device uses serial_hds[] directly in its realize function, so it
can not be instantiated again by the user.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1509519537-6964-2-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:51 +00:00
Andrew Baumann
5b2d261d60 arm: implement cache/shareability attribute bits for PAR registers
On a successful address translation instruction, PAR is supposed to
contain cacheability and shareability attributes determined by the
translation. We previously returned 0 for these bits (in line with the
general strategy of ignoring caches and memory attributes), but some
guest OSes may depend on them.

This patch collects the attribute bits in the page-table walk, and
updates PAR with the correct attributes for all LPAE translations.
Short descriptor formats still return 0 for these bits, as in the
prior implementation.

Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 20171031223830.4608-1-Andrew.Baumann@microsoft.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 13:03:51 +00:00
Peter Maydell
5853e92207 cocoa queue:
* make scrolling work in GUI monitor windows
  * change ungrab to ctrl-alt-g (matching gtk)
  * pass unused ctrl-alt combos to guest
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-cocoa-20171107' into staging

cocoa queue:
 * make scrolling work in GUI monitor windows
 * change ungrab to ctrl-alt-g (matching gtk)
 * pass unused ctrl-alt combos to guest

# gpg: Signature made Tue 07 Nov 2017 10:15:00 GMT
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-cocoa-20171107:
  ui/cocoa.m: Send ctrl-alt key combos to guest if QEMU isn't using them
  ui/cocoa.m: move ungrab to ctrl-alt-g
  ui/cocoa.m: Make scrolling work again in GUI monitor windows

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 12:19:48 +00:00
Peter Maydell
0e82cdd012 Merge build 2017/11/07 v1
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 =TdMN
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Merge remote-tracking branch 'remotes/berrange/tags/pull-build-2017-11-07-1' into staging

Merge build 2017/11/07 v1

# gpg: Signature made Tue 07 Nov 2017 10:14:49 GMT
# 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

* remotes/berrange/tags/pull-build-2017-11-07-1:
  build: remove use of MAKELEVEL optimization in submodule handling
  build: delay check for empty git submodule list
  build: don't fail if given a git submodule which does not exist
  build: allow automatic git submodule updates to be disabled
  build: don't create temporary files in source dir
  build: allow setting a custom GIT binary for transparent proxying

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 11:42:57 +00:00
Peter Maydell
d2b8c0910e This fixes a bad errno returned to the guest and a trivial coding style nit.
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 =qH6G
 -----END PGP SIGNATURE-----

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

This fixes a bad errno returned to the guest and a trivial coding style nit.

# gpg: Signature made Mon 06 Nov 2017 18:09:24 GMT
# gpg:                using RSA key 0x71D4D5E5822F73D6
# gpg: Good signature from "Greg Kurz <groug@kaod.org>"
# gpg:                 aka "Gregory Kurz <gregory.kurz@free.fr>"
# gpg:                 aka "[jpeg image of size 3330]"
# Primary key fingerprint: B482 8BAF 9431 40CE F2A3  4910 71D4 D5E5 822F 73D6

* remotes/gkurz/tags/for-upstream:
  9pfs: fix v9fs_mark_fids_unreclaim() return value
  9pfs: drop one user of struct V9fsFidState

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 10:59:07 +00:00
Peter Maydell
ef2088f9af ui/cocoa.m: Send ctrl-alt key combos to guest if QEMU isn't using them
Send those ctrl-alt key combos that QEMU doesn't treat specially to
the guest rather than ignoring them.

All the case where we do special handling of ctrl-alt-X exit the
event handling using a "return" statement, so we can simply allow
the rest to fall through into the normal key handling by deleting
the now-spurious "else".

We take the opportunity to clean up some oddly-formatted and
now rather uninformative comments by removing them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 10:14:14 +00:00
John Arbuckle
5929e36cac ui/cocoa.m: move ungrab to ctrl-alt-g
Currently the cocoa user interface relis on the user pushing
control-alt to ungrab the mouse.  This is patch changes the key
combination to control-alt-g to be in line with the GTK user
interface.

Signed-off-by: John Arbuckle <programmingkidx@gmail.com>
Message-id: 20171102213907.11443-1-programmingkidx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 10:14:14 +00:00
John Arbuckle
9c3a418eac ui/cocoa.m: Make scrolling work again in GUI monitor windows
Make scrolling in the monitor work, by correctly passing through
control+key combinations.

Signed-off-by: John Arbuckle <programmingkidx@gmail.com>
Message-id: 20171101154607.1582-1-programmingkidx@gmail.com
[PMM: fixed coding style nits; cleaned up commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-07 10:14:14 +00:00
Greg Kurz
267fcadf32 9pfs: fix v9fs_mark_fids_unreclaim() return value
The return value of v9fs_mark_fids_unreclaim() is then propagated to
pdu_complete(). It should be a negative errno, not -1.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-11-06 18:05:35 +01:00
Greg Kurz
21cf9edf4f 9pfs: drop one user of struct V9fsFidState
To comply with QEMU coding style.

Signed-off-by: Greg Kurz <groug@kaod.org>
2017-11-06 18:05:35 +01:00
Peter Maydell
299d1ea9bb MIPS patches 2017-11-06
Changes:
 Update email addresses of Yongbok Kim, James Hogan and Paul Burton.
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 Version: GnuPG v1.4.5 (GNU/Linux)
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/yongbok/tags/mips-20171106' into staging

MIPS patches 2017-11-06

Changes:
Update email addresses of Yongbok Kim, James Hogan and Paul Burton.

# gpg: Signature made Mon 06 Nov 2017 15:38:58 GMT
# gpg:                using RSA key 0x2238EB86D5F797C2
# gpg: Good signature from "Yongbok Kim <yongbok.kim@mips.com>"
# gpg:                 aka "Yongbok Kim <yongbok.kim@imgtec.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: 8600 4CF5 3415 A5D9 4CFA  2B5C 2238 EB86 D5F7 97C2

* remotes/yongbok/tags/mips-20171106:
  MAINTAINERS: Update Paul Burton's email address
  MAINTAINERS: Update James Hogan's email address
  MAINTAINERS: Update Yongbok Kim's email address

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-06 16:13:10 +00:00
Paul Burton
94d973bdaa MAINTAINERS: Update Paul Burton's email address
Update my email address from paul.burton@imgtec.com to
paul.burton@mips.com, since MIPS will soon no longer be a part of
Imagination Technologies & as such the @imgtec.com address will soon
cease to function.

A mapping is added in .mailmap such that git reports the new @mips.com
address, and get_maintainer.pl in turn reports it when examining git
history. Whilst here add a mapping for my also-defunct
paul@archlinuxmips.org email address too.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Yongbok Kim <yongbok.kim@mips.com>
Cc: qemu-devel@nongnu.org
Cc: qemu-trivial@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[Yongbok Kim:
  Updated message subject]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-11-06 07:36:43 -08:00
James Hogan
a7a2d7d2a0 MAINTAINERS: Update James Hogan's email address
Update my imgtec.com email address to my kernel.org one in MAINTAINERS
as MIPS will soon no longer be part of Imagination Technologies, and add
a mapping in .mailcap so get_maintainer.pl reports the right address.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: qemu-devel@nongnu.org
Cc: qemu-trivial@nongnu.org
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
[Yongbok Kim:
  Updated message subject]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-11-06 07:36:43 -08:00
Yongbok Kim
0eb4e1f33a MAINTAINERS: Update Yongbok Kim's email address
Update my email address to mips.com

Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-11-06 07:36:42 -08:00
Daniel P. Berrange
c4b01c7c51 build: remove use of MAKELEVEL optimization in submodule handling
The Makefile attempts to optimize the handling of submodules by using MAKELEVEL
to only check the submodule status when running from the top level make
invokation. This causes problems for people who are using a makefile of their
own to in turn invoke QEMU's makefile, as MAKELEVEL is already set to 1 (or
more) when QEMU's makefile runs.

This optimization should not really be needed, since the git-submodule.sh
script is already used to detect if a submodule update is required. This by
removing the MAKELEVEL check, we at most add an extra 'git-submodule.sh status'
call to each make level, the overhead of which is lost in noise of building
QEMU.

Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-11-06 12:49:20 +00:00