Commit Graph

76217 Commits

Author SHA1 Message Date
Richard Henderson
2c674109c2 configure: Override the os default with --disable-pie
Some distributions, e.g. Ubuntu 19.10, enable PIE by default.
If for some reason one wishes to build a non-pie binary, we
must provide additional options to override.

At the same time, reorg the code to an elif chain.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Update for QEMU_LDFLAGS.
2020-03-28 14:09:45 -07:00
Richard Henderson
e6cbd75158 configure: Unnest detection of -z,relro and -z,now
There is nothing about these options that is related to PIE.
Use them unconditionally.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fangrui Song <i@maskray.me>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Do not split into two tests.
v3: Update to QEMU_LDFLAGS.
2020-03-28 14:09:45 -07:00
Richard Henderson
b26341241b configure: Always detect -no-pie toolchain support
The CFLAGS_NOPIE and LDFLAGS_NOPIE variables are used
in pc-bios/optionrom/Makefile, which has nothing to do
with the PIE setting of the main qemu executables.

This overrides any operating system default to build
all executables as PIE, which is important for ROMs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
d2cd29e307 configure: Do not force pie=no for non-x86
PIE is supported on many other hosts besides x86.

The default for non-x86 is now the same as x86: pie is used
if supported, and may be forced via --enable/--disable-pie.

The original commit (40d6444e91) said:

  "Non-x86 are not changed, as they require TCG changes"

but I think that's wrong -- there's nothing about PIE that
affects TCG one way or another.

Tested on aarch64 (bionic) and ppc64le (centos 7) hosts.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
64547a3bb6 tcg: Remove softmmu code_gen_buffer fixed address
The commentary talks about "in concert with the addresses
assigned in the relevant linker script", except there is no
linker script for softmmu, nor has there been for some time.

(Do not confuse the user-only linker script editing that was
removed in the previous patch, because user-only does not
use this code_gen_buffer allocation method.)

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
ee5195ee0f configure: Drop adjustment of textseg
This adjustment was random and unnecessary.  The user mode
startup code in probe_guest_base() will choose a value for
guest_base that allows the host qemu binary to not conflict
with the guest binary.

With modern distributions, this isn't even used, as the default
is PIE, which does the same job in a more portable way.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Remove mention of config-host.ld from make distclean
2020-03-28 14:09:44 -07:00
Peter Maydell
5acad5bf48 Pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

Pull request

# gpg: Signature made Fri 27 Mar 2020 20:14:10 GMT
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/ide-pull-request:
  cmd646-ide: use qdev gpio rather than qemu_allocate_irqs()
  via-ide: use qdev gpio rather than qemu_allocate_irqs()
  via-ide: don't use PCI level for legacy IRQs
  hw/ide/sii3112: Use qdev gpio rather than qemu_allocate_irqs()
  fdc/i8257: implement verify transfer mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-28 00:27:04 +00:00
Mark Cave-Ayland
cbf4c9ac9c cmd646-ide: use qdev gpio rather than qemu_allocate_irqs()
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-4-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Mark Cave-Ayland
627a445ae0 via-ide: use qdev gpio rather than qemu_allocate_irqs()
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-3-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Mark Cave-Ayland
b938587569 via-ide: don't use PCI level for legacy IRQs
The PCI level calculation was accidentally left in when rebasing from a
previous patchset. Since both IRQs are driven separately, the value
being passed into the IRQ handler should be used directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-2-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Peter Maydell
d6ef883d9d hw/ide/sii3112: Use qdev gpio rather than qemu_allocate_irqs()
Coverity points out (CID 1421984) that we are leaking the
memory returned by qemu_allocate_irqs(). We can avoid this
leak by switching to using qdev_init_gpio_in(); the base
class finalize will free the irqs that this allocates under
the hood.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20200323151715.29454-1-peter.maydell@linaro.org
[Maintainer edit: replace `DEVICE(dev)` by `ds` --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Sven Schnelle
9e58f17270 fdc/i8257: implement verify transfer mode
While working on the Tulip driver i tried to write some Teledisk images to
a floppy image which didn't work. Turned out that Teledisk checks the written
data by issuing a READ command to the FDC but running the DMA controller
in VERIFY mode. As we ignored the DMA request in that case, the DMA transfer
never finished, and Teledisk reported an error.

The i8257 spec says about verify transfers:

3) DMA verify, which does not actually involve the transfer of data. When an
8257 channel is in the DMA verify mode, it will respond the same as described
for transfer operations, except that no memory or I/O read/write control signals
will be generated.

Hervé proposed to remove all the dma_mode_ok stuff from fdc to have a more
clear boundary between DMA and FDC, so this patch also does that.

Suggested-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
2020-03-27 14:30:08 -04:00
Peter Maydell
127fe86433 Testing updates:
- docker updates (various dependencies)
   - travis updates (s390x KVM build)
   - tweak qemu/atomic.h headers in event of clash
   - test/vm updates (NetBSD -> 9.0, FreeBSD -> 12.1)
   - disable MTTCG for mips64/mips64el
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-270320-2' into staging

Testing updates:

  - docker updates (various dependencies)
  - travis updates (s390x KVM build)
  - tweak qemu/atomic.h headers in event of clash
  - test/vm updates (NetBSD -> 9.0, FreeBSD -> 12.1)
  - disable MTTCG for mips64/mips64el

# gpg: Signature made Fri 27 Mar 2020 13:45:18 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-270320-2:
  .travis.yml: Add a KVM-only s390x job
  tests/docker: Add libepoxy and libudev packages to the Fedora image
  tests/docker: Use Python3 PyYAML in the Fedora image
  tests/docker: Install gcrypt devel package in Debian image
  tests/docker: Keep package list sorted
  configure: disable MTTCG for MIPS guests
  tests/vm: fix basevm config
  tests/vm: update NetBSD to 9.0
  tests/vm: update FreeBSD to 12.1
  tests/vm: move vga setup
  tests/vm: write raw console log
  qemu/atomic.h: add #ifdef guards for stdatomic.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-27 18:15:01 +00:00
Peter Maydell
77a48a743f Block layer patches:
- Fix another case of mirror block job deadlocks
 - Minor fixes
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Fix another case of mirror block job deadlocks
- Minor fixes

# gpg: Signature made Fri 27 Mar 2020 15:18:37 GMT
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  qcow2: Remove unused fields from BDRVQcow2State
  mirror: Wait only for in-flight operations
  Revert "mirror: Don't let an operation wait for itself"
  nvme: Print 'cqid' for nvme_del_cq
  block: fix bdrv_root_attach_child forget to unref child_bs
  block/iscsi:use the flags in iscsi_open() prevent Clang warning

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-27 16:04:22 +00:00
Kevin Wolf
df74b1d3df qcow2: Remove unused fields from BDRVQcow2State
These fields were already removed in commit c3c10f72, but then commit
b58deb34 revived them probably due to bad merge conflict resolution.
They are still unused, so remove them again.

Fixes: b58deb344d
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326170757.12344-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Kevin Wolf
ce8cabbd17 mirror: Wait only for in-flight operations
mirror_wait_for_free_in_flight_slot() just picks a random operation to
wait for. However, a MirrorOp is already in s->ops_in_flight when
mirror_co_read() waits for free slots, so if not enough slots are
immediately available, an operation can end up waiting for itself, or
two or more operations can wait for each other to complete, which
results in a hang.

Fix this by adding a flag to MirrorOp that tells us if the request is
already in flight (and therefore occupies slots that it will later
free), and picking only such operations for waiting.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1794692
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Kevin Wolf
9178f4fe5f Revert "mirror: Don't let an operation wait for itself"
This reverts commit 7e6c4ff792.

The fix was incomplete as it only protected against requests waiting for
themselves, but not against requests waiting for each other. We need a
different solution.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Minwoo Im
6fcc859fc2 nvme: Print 'cqid' for nvme_del_cq
The given argument for this trace should be cqid, not sqid.

Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Message-Id: <20200324140646.8274-1-minwoo.im.dev@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Vladimir Sementsov-Ogievskiy
7a26df203c block: fix bdrv_root_attach_child forget to unref child_bs
bdrv_root_attach_child promises to drop child_bs reference on failure.
It does it on first handled failure path, but not on the second. Fix
that.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324155921.23822-1-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Chen Qun
34afc5c298 block/iscsi:use the flags in iscsi_open() prevent Clang warning
Clang static code analyzer show warning:
  block/iscsi.c:1920:9: warning: Value stored to 'flags' is never read
        flags &= ~BDRV_O_RDWR;
        ^        ~~~~~~~~~~~~

In iscsi_allocmap_init() only checks BDRV_O_NOCACHE, which
is the same in both of flags and bs->open_flags.
We can use the flags instead bs->open_flags to prevent Clang warning.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200311032927.35092-1-kuhn.chenqun@huawei.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Philippe Mathieu-Daudé
41e1f0e225 .travis.yml: Add a KVM-only s390x job
Add a job to build QEMU on s390x with TCG disabled, so
this configuration won't bitrot over time.

This job is quick, running check-unit: Ran for 5 min 30 sec
https://travis-ci.org/github/philmd/qemu/jobs/665456423

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322154015.25358-1-philmd@redhat.com>
Message-Id: <20200323161514.23952-12-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
3e3207337b tests/docker: Add libepoxy and libudev packages to the Fedora image
Install optional dependencies of QEMU to get better coverage.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-5-philmd@redhat.com>
Message-Id: <20200323161514.23952-11-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
6d8e7738b0 tests/docker: Use Python3 PyYAML in the Fedora image
The Python2 PyYAML is now pointless, switch to the Python3 version.

Fixes: bcbf27947 (docker: move tests from python2 to python3)
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-4-philmd@redhat.com>
Message-Id: <20200323161514.23952-10-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
9274ae32c3 tests/docker: Install gcrypt devel package in Debian image
In commit 6f8bbb374b we enabled building with the gcrypt library
on the the Debian 'x86 host', which was based on Debian Stretch.
Later in commit 698a71edbe we upgraded the Debian base image to
Buster.

Apparently Debian Stretch was listing gcrypt as a QEMU dependency,
but this is not the case anymore in Buster, so we need to install
it manually (it it not listed by 'apt-get -s build-dep qemu' in
the common debian10.docker anymore). This fixes:

 $ ../configure $QEMU_CONFIGURE_OPTS

  ERROR: User requested feature gcrypt
         configure was not able to find it.
         Install gcrypt devel >= 1.5.0

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-3-philmd@redhat.com>
Message-Id: <20200323161514.23952-9-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
cdb1a84cfe tests/docker: Keep package list sorted
Keep package list sorted, this eases rebase/cherry-pick.

Fixes: 3a6784813
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-2-philmd@redhat.com>
Message-Id: <20200323161514.23952-8-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Alex Bennée
a092a95547 configure: disable MTTCG for MIPS guests
While debugging check-acceptance failures I found an instability in
the mips64el test case. Briefly the test case:

  retry.py -n 100 -c -- ./mips64el-softmmu/qemu-system-mips64el \
    -display none -vga none -serial mon:stdio \
    -machine malta -kernel ./vmlinux-4.7.0-rc1.I6400 \
    -cpu I6400 -smp 8 -vga std \
    -append "printk.time=0 clocksource=GIC console=tty0 console=ttyS0 panic=-1" \
    --no-reboot

Reports about a 9% failure rate:

  Results summary:
  0: 91 times (91.00%), avg time 5.547 (0.45 varience/0.67 deviation)
  -6: 9 times (9.00%), avg time 3.394 (0.02 varience/0.13 deviation)
  Ran command 100 times, 91 passes

When re-run with "--accel tcg,thread=single" the instability goes
away.

  Results summary:
  0: 100 times (100.00%), avg time 17.318 (249.76 varience/15.80 deviation)
  Ran command 100 times, 100 passes

Which seems to indicate there is some aspect of the MIPS MTTCG fixes
that has been missed. Ideally we would fix that but I'm afraid I don't
have time to investigate and am not super familiar with the
architecture anyway. In lieu of someone tracking down the failure lets
disable it for now.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Message-Id: <20200323161514.23952-7-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Alex Bennée
f01454ad17 tests/vm: fix basevm config
When the patch was merged it was part of a longer series which had
already merged the config changes. Semu-revert the config related
changes for now so things will build.

Fixes: b081986c85
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200323161514.23952-6-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
2cc3e591b3 tests/vm: update NetBSD to 9.0
The installer supports GPT now, so the install workflow has changed a
bit.  Also: run without VGA device.  This works around a bug in the
seabios sercon code and makes the bootloader menu show up on the serial
line, so we can drop the quirk for that.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200310083218.26355-5-kraxel@redhat.com>
Message-Id: <20200323161514.23952-5-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
610bd2cf2f tests/vm: update FreeBSD to 12.1
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200310083218.26355-4-kraxel@redhat.com>
Message-Id: <20200323161514.23952-4-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
50a06452c7 tests/vm: move vga setup
Move '-device VGA' from basevm.py to the guests, so they have
the chance to opt out and run without display device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200310083218.26355-3-kraxel@redhat.com>
Message-Id: <20200323161514.23952-3-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
698a64f948 tests/vm: write raw console log
Run "tail -f /var/tmp/*/qemu*console.raw" in another terminal
to watch the install console.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200310083218.26355-2-kraxel@redhat.com>
Message-Id: <20200323161514.23952-2-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Alex Bennée
f4ce3adf6b qemu/atomic.h: add #ifdef guards for stdatomic.h
Deep inside the FreeBSD netmap headers we end up including stdatomic.h
which clashes with qemu's atomic functions which are modelled along
the C11 standard. To avoid a massive rename lets just ifdef around the
problem.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200326170121.13045-1-alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-27 13:42:57 +00:00
Peter Maydell
cfe68ae025 Emulate x86_64 vsyscalls
Fix syscall_nr.h cleanup
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request' into staging

Emulate x86_64 vsyscalls
Fix syscall_nr.h cleanup

# gpg: Signature made Thu 26 Mar 2020 07:23:16 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-5.0-pull-request:
  linux-user: Flush out implementation of gettimeofday
  linux-user: Add x86_64 vsyscall page to /proc/self/maps
  linux-user/i386: Emulate x86_64 vsyscalls
  linux-user/i386: Split out gen_signal
  target/i386: Renumber EXCP_SYSCALL
  linux-user, configure: fix (again) syscall_nr.h dependencies cleanup

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-26 20:55:54 +00:00
Peter Maydell
762fa6d79a Block patches for 5.0-rc1:
- Fix qemu-img convert with a host device or iscsi target
 - Use-after-free fix in mirror
 - Some minor qcow2 fixes
 - Minor sheepdog fix
 - Minor qemu-img check report fix
 -----BEGIN PGP SIGNATURE-----
 
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 =zSv1
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2020-03-26' into staging

Block patches for 5.0-rc1:
- Fix qemu-img convert with a host device or iscsi target
- Use-after-free fix in mirror
- Some minor qcow2 fixes
- Minor sheepdog fix
- Minor qemu-img check report fix

# gpg: Signature made Thu 26 Mar 2020 14:28:26 GMT
# gpg:                using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40
# gpg:                issuer "mreitz@redhat.com"
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2020-03-26:
  iotests/138: Test leaks/corruptions fixed report
  iotests: Add poke_file_[bl]e functions
  qemu-img: Fix check's leak/corruption fix report
  sheepdog: Consistently set bdrv_has_zero_init_truncate
  qcow2: Avoid feature name extension on small cluster size
  qcow2: List autoclear bit names in header
  qcow2: Comment typo fixes
  block: trickle down the fallback image creation function use to the block drivers
  block: pass BlockDriver reference to the .bdrv_co_create
  block/mirror: fix use after free of local_err

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-26 15:44:26 +00:00
Max Reitz
a507c51790 iotests/138: Test leaks/corruptions fixed report
Test that qemu-img check reports the number of leaks and corruptions
fixed in its JSON report (after a successful run).

While touching the _unsupported_imgopts line, adjust the note on why
data_file does not work with this test: The current comment sounds a bit
like it is a mistake for qemu-img check not to check external data
files' refcounts.  But there are no such refcounts, so it is no mistake.
Just say that qemu-img check does not do much for external data files,
and this is why this test does not work with them.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200324172757.1173824-4-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:52:43 +01:00
Max Reitz
2f8bb28ff0 iotests: Add poke_file_[bl]e functions
Similarly to peek_file_[bl]e, we may want to write binary integers into
a file.  Currently, this often means messing around with poke_file and
raw binary strings.  I hope these functions make it a bit more
comfortable.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Code-suggested-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324172757.1173824-3-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:52:37 +01:00
Max Reitz
1656324ec0 qemu-img: Fix check's leak/corruption fix report
There are two problems with qemu-img check's report on how many leaks
and/or corruptions have been fixed:

(1) ImageCheck.has_leaks_fixed and ImageCheck.has_corruptions_fixed are
only true when ImageCheck.leaks or ImageCheck.corruptions (respectively)
are non-zero.  qcow2's check implementation will set the latter to zero
after it has fixed leaks and corruptions, though, so leaks-fixed and
corruptions-fixed are actually never reported after successful repairs.
We should always report them when they are non-zero, just like all the
other fields of ImageCheck.

(2) After something has been fixed and we run the check a second time,
leaks_fixed and corruptions_fixed are taken from the first run; but
has_leaks_fixed and has_corruptions_fixed are not.  The second run
actually cannot fix anything, so with (1) fixed, has_leaks_fixed and
has_corruptions_fixed will always be false here.  (With (1) unfixed,
they will at least be false on successful runs, because then the number
of leaks and corruptions found in the second run should be 0.)
We should save has_leaks_fixed and has_corruptions_fixed just like we
save leaks_fixed and corruptions_fixed.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324172757.1173824-2-mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:52:19 +01:00
Eric Blake
ed04991063 sheepdog: Consistently set bdrv_has_zero_init_truncate
block_int.h claims that .bdrv_has_zero_init must return 0 if
.bdrv_has_zero_init_truncate does likewise; but this is violated if
only the former callback is provided if .bdrv_co_truncate also exists.
When adding the latter callback, it was mistakenly added to only one
of the three possible sheepdog instantiations.

Fixes: 1dcaf527
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200324174233.1622067-5-eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Eric Blake
e7be13ad3f qcow2: Avoid feature name extension on small cluster size
As the feature name table can be quite large (over 9k if all 64 bits
of all three feature fields have names; a mere 8 features leaves only
8 bytes for a backing file name in a 512-byte cluster), it is unwise
to emit this optional header in images with small cluster sizes.

Update iotest 036 to skip running on small cluster sizes; meanwhile,
note that iotest 061 never passed on alternative cluster sizes
(however, I limited this patch to tests with output affected by adding
feature names, rather than auditing for other tests that are not
robust to alternative cluster sizes).

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200324174233.1622067-4-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Eric Blake
bb40ebce2c qcow2: List autoclear bit names in header
The feature table is supposed to advertise the name of all feature
bits that we support; however, we forgot to update the table for
autoclear bits.  While at it, move the table to read-only memory in
code, and tweak the qcow2 spec to name the second autoclear bit.
Update iotests that are affected by the longer header length.

Fixes: 88ddffae
Fixes: 93c24936
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324174233.1622067-3-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Eric Blake
a951a631b9 qcow2: Comment typo fixes
Various trivial typos noticed while working on this file.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200324174233.1622067-2-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Maxim Levitsky
5a5e7f8cd8 block: trickle down the fallback image creation function use to the block drivers
Instead of checking the .bdrv_co_create_opts to see if we need the
fallback, just implement the .bdrv_co_create_opts in the drivers that
need it.

This way we don't break various places that need to know if the
underlying protocol/format really supports image creation, and this way
we still allow some drivers to not support image creation.

Fixes: fd17146cd9
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1816007

Note that technically this driver reverts the image creation fallback
for the vxhs driver since I don't have a means to test it, and IMHO it
is better to leave it not supported as it was prior to generic image
creation patches.

Also drop iscsi_create_opts which was left accidentally.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-3-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
[mreitz: Fixed alignment, and moved bdrv_co_create_opts_simple() and
         bdrv_create_opts_simple from block.h into block_int.h]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Maxim Levitsky
b92902dfea block: pass BlockDriver reference to the .bdrv_co_create
This will allow the reuse of a single generic .bdrv_co_create
implementation for several drivers.
No functional changes.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-2-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Vladimir Sementsov-Ogievskiy
66c8672d24 block/mirror: fix use after free of local_err
local_err is used again in mirror_exit_common() after
bdrv_set_backing_hd(), so we must zero it. Otherwise try to set
non-NULL local_err will crash.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324153630.11882-3-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:32 +01:00
Peter Maydell
01e38186ec Combo Migration/HMP/virtiofs pull
Small fixes all around.
 Ones that are noticeable:
   a) Igor's migration compatibility fix affecting older machine types
      has been seen in the wild
   b) Philippe's autconverge fix should fix an intermittently
      failing migration test.
   c) Mao's makes a small change to the output of 'info
      migrate_parameters'  for tls-authz.
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20200325b' into staging

Combo Migration/HMP/virtiofs pull

Small fixes all around.
Ones that are noticeable:
  a) Igor's migration compatibility fix affecting older machine types
     has been seen in the wild
  b) Philippe's autconverge fix should fix an intermittently
     failing migration test.
  c) Mao's makes a small change to the output of 'info
     migrate_parameters'  for tls-authz.

# gpg: Signature made Wed 25 Mar 2020 13:14:48 GMT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20200325b:
  migration: use "" instead of (null) for tls-authz
  migration/ram: fix use after free of local_err
  migration/colo: fix use after free of local_err
  vl.c: fix migration failure for 3.1 and older machine types
  tools/virtiofsd/passthrough_ll: Fix double close()
  hmp/vnc: Fix info vnc list leak
  tests/migration: Reduce autoconverge initial bandwidth
  xbzrle: update xbzrle doc
  hmp-cmd: fix a missing_break warning

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-26 09:28:11 +00:00
Richard Henderson
a52f5f87be linux-user: Flush out implementation of gettimeofday
The first argument, timeval, is allowed to be NULL.

The second argument, timezone, was missing.  While its use is
deprecated, it is still present in the syscall.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-6-richard.henderson@linaro.org>
[lv: add "#if defined(TARGET_NR_gettimeofday)"]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-26 08:08:54 +01:00
Richard Henderson
bf02adcd88 linux-user: Add x86_64 vsyscall page to /proc/self/maps
The page isn't (necessarily) present in the host /proc/self/maps,
and even if it might be it isn't present in page_flags, and even
if it was it might not have the same set of page permissions.

The easiest thing to do, particularly when it comes to the
"[vsyscall]" note at the end of line, is to special case it.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-5-richard.henderson@linaro.org>
[lv: remove trailing space]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-26 08:08:54 +01:00
Richard Henderson
b26491b4d4 linux-user/i386: Emulate x86_64 vsyscalls
Notice the magic page during translate, much like we already
do for the arm32 commpage.  At runtime, raise an exception to
return cpu_loop for emulation.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-4-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-26 08:08:54 +01:00
Richard Henderson
acf768a904 linux-user/i386: Split out gen_signal
This is a bit tidier than open-coding the 5 lines necessary
to initialize the target_siginfo_t.  In addition, this zeros
the remaining bytes of the target_siginfo_t, rather than
passing in garbage.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-26 08:08:54 +01:00
Richard Henderson
628460891d target/i386: Renumber EXCP_SYSCALL
We are not short of numbers for EXCP_*.  There is no need to confuse things
by having EXCP_VMEXIT and EXCP_SYSCALL overlap, even though the former is
only used for system mode and the latter is only used for user mode.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-26 08:08:53 +01:00