Commit Graph

71842 Commits

Author SHA1 Message Date
Alex Bennée
50d2dcaddb tests/docker: --disable-libssh on ubuntu1804 builds
Currently this stops the mega:

  make docker-test-build

from working. Once the source is patched to deal with the case this
workaround can be removed.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
e5389e4414 tests/docker: add more images to PARTIAL_IMAGES when not on x86_64
This prevents us trying to do builds which we can't complete.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 14:14:31 +01:00
Alex Bennée
d2467284e8 tests/docker: use --arch-only for installing deps
The Debian QEMU packages require a bunch of cross compilers for
building firmware which aren't available on all host architectures.
Using --arch-only skips this particular requirement and allows us to
install just the dependencies we need.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
ec22b72699 tests/docker: add debian-amd64-cross for non-x86 hosts
When building on a non-x86 host we need to setup the x86 build like
any other cross compiler.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 14:14:31 +01:00
Alex Bennée
bf5b512cd4 tests/docker: avoid $SHELL invoke bash directly
On some images SHELL is pointing at a limited /bin/sh which doesn't
understand noprofile/norc. Given the run script is running bash just
invoke it directly.

This fixes:

  $ make docker-test-build@IMAGE DEBUG=1
  [...]
  + echo '  ./test-build'
  ./test-build
  + echo '* Hit Ctrl-D to continue, or type '\''exit 1'\'' to abort'
  * Hit Ctrl-D to continue, or type 'exit 1' to abort
  + echo
  + /bin/sh --noprofile --norc
  /bin/sh: 0: Illegal option --

Fixes: 2b0c4fa13f
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
44d5a8bf5d tests/docker: add debian9-mxe to DEBIAN_PARTIAL_IMAGES
Another image that can't be used directly to build QEMU.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
ac276a4b54 tests/docker: add debian-xtensa-cross to DEBIAN_PARTIAL_IMAGES
This should have been marked when the docker recipe was added to
prevent it being used for cross compiling QEMU. Sort the
DEBIAN_PARTIAL_IMAGE list while we are at it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
4d26c7fef4 tests/docker: pin powerpc-user-cross to a snapshot
Now Jessie has entered LTS the powerpc architecture has been dropped
so we can no longer build the image from scratch. However we can use
the snapshot archive to build the last working version.

This now only lives on an example of setting up a user-cross image as
at least on x86-64 we can use the Buster packaged cross compiler for
building test images.

Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 14:14:31 +01:00
Alex Bennée
a3c1f1283b tests/docker: update Debian Sid image
While we are not currently using it we might as well keep the image
for later usage. So:

  - update to a more recent snapshot
  - clean up verbiage in commentary
  - remove duplicate shell from a merge failure

Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
8a4daee5f9 tests/docker: move our ppc64 cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
c6e8f512d5 tests/docker: move our riscv64 cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
4575a701ea tests/docker: move our mips64 cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
923984c5e8 tests/docker: move our sh4 cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
78d1d69641 tests/docker: move our sparc64 cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
20f8b1a27a tests/docker: move our m68k cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
c268700b9f tests/docker: move our HPPA cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
e3386c276c tests/docker: move our Alpha cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
ce49420913 tests/docker: move our powerpc cross compile to Buster
Now Buster is released we can stop relying on the movable feast that
is Sid for our cross-compiler for building tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
18b6be4326 tests/docker: move our arm64 cross compile to Buster
Now Buster is released we can unify our cross build images for both
QEMU and tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
2f45f2d446 tests/docker: add Buster to DOCKER_PARTIAL_IMAGES
We need to add additional packages to the base images to be able to
build QEMU so lets avoid building with it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
09bb808f0b tests/docker: set DEF_TARGET_LIST for some containers
You can assume the failures most people are interested in are the
cross-compile failures that are specific to the cross compile target.
Set DEF_TARGET_LIST based on what we use for shippable, the user can
always override by calling with TARGET_LIST set.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 14:14:31 +01:00
Alex Bennée
6945018a68 tests/docker: move DEF_TARGET_LIST setting to common.rc
We might as well not repeat ourselves. At the same time allow it to be
overridden which we will use later from docker targets.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-09-10 14:14:31 +01:00
Alex Bennée
8cf4efcf30 tests/tcg: add .gitignore for in source builds
This hides the new build artefacts from the re-organised TCG tests when
you are doing an in-source build.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 14:14:31 +01:00
Paolo Bonzini
2038f8c877 tests/tcg: move configuration to a sub-shell script
Avoid the repeated inclusions of config-target.mak, which have
risks of namespace pollution, and instead build minimal configuration
files in a configuration script.  The same configuration files can
also be included in Makefile and Makefile.qemu

[AJB 10/09/19]
In the original PR this had inadvertently enabled tests
for ppc64abi32. However as the rest of the multiarch tests work rather
than disabling the otherwise correctly functioning build I've just
skipped the failing linux-test test. For some reason I can't debug it
with TCG so I'm leaving that to the PPC maintainers to look at.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190807143523.15917-4-pbonzini@redhat.com>
[AJB: s/docker/container/, rm last bits from configure, ppc6432abi hack]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Richard Henderson <rth@twiddle.net>
2019-09-10 14:09:00 +01:00
Paolo Bonzini
fc76c56d3f tests/tcg: cleanup Makefile inclusions
Rename Makefile.probe to Makefile.prereqs and make it actually
define rules for the tests.

Rename Makefile to Makefile.target, since it is not a toplevel
makefile.

Rename Makefile.include to Makefile.qemu and disentangle it
from the QEMU Makefile.target, so that it is invoked recursively
by tests/Makefile.include.  Tests are now placed in
tests/tcg/$(TARGET).

Drop the usage of TARGET_BASE_ARCH, which is ignored by everything except
x86_64 and aarch64.  Fix x86 tests by using -cpu max and, while
at it, standardize on QEMU_OPTS for aarch64 tests too.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190807143523.15917-3-pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
Paolo Bonzini
6a9e0ef32a tests/tcg: use EXTRA_CFLAGS everywhere
For i386 specifically, this allows using the host GCC
to compile the i386 tests.  But, it should really be
done for all targets, unless we want to pass $(EXTRA_CFLAGS)
directly as part of $(CC).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20190807143523.15917-2-pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
Alex Bennée
eea2153ea8 tests/docker: fix final missing .encode when parsing solibs
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
Alex Bennée
884fcafc9c tests/docker: handle missing encoding keyword for subprocess.check_output
This was only added in Python 3.6 and not all the build hosts have
that recent a python3. However we still need to ensure everything is
returns as a unicode string so checks higher up the call chain don't
barf.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

fixup! tests/docker: handle missing encoding keyword for subprocess.check_output
2019-09-10 09:38:33 +01:00
Alex Bennée
71ebbe09e9 tests/docker: fix "cc" command to work with podman
Podman requires a little bit of additional magic to the uid mapping
which was already done for the normal RunCommand. We simplify the
logic by pushing it directly into the Docker::run method to avoid
instantiating an extra Docker() object and ensure the CC command
always runs as the current user.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
John Snow
63772d5cfd tests/docker: Use --userns=keep-id for podman
The workaround that attempts to accomplish the same result as --userns=keep-id
does not appear to work well with UIDs much above 1000 (like mine, which is
above 20000.)

Since we have official support for this "trick" now, use the supported method.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20190904232451.26466-1-jsnow@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
Alex Bennée
8480517d4c configure: clean-up container cross compile detect
The introduction of podman support inadvertently broke configure's
detect of the container support as the configure probe didn't specify
an engine type. To fix this in docker.py:

  - only (re)set USE_ENGINE if --engine is specified
  - enhance the output so docker is no longer just yes

In the configure script we can at least start cleaning up the
detecting and naming of variables. To avoid too much churn the
conversion of the various make DOCKER_foo variables has been left for
future clean-ups.

Fixes: 9459f75413
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: David Hildenbrand <david@redhat.com>
2019-09-10 09:38:33 +01:00
Thomas Huth
4030289a44 hw/misc: Mark most objects as "common" code to speed up compilation a litte bit
Most of the code in hw/misc/ does not directly depend on CPU-specific
code. Mark it as "common" so that the code can be shared between e.g.
qemu-system-arm and qemu-system-aarch64, or between the various mips
flavours, instead of recompiling it for each and every target again
and again.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190902162638.28142-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-09-10 09:38:33 +01:00
Richard Henderson
2041df4a05 linux-user: Add AT_HWCAP2 for aarch64-linux-user
Add the HWCAP2_* bits from kernel version v5.3-rc3.
Enable the bits corresponding to ARMv8.5-CondM and ARMv8.5-FRINT.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190809171156.3476-1-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-10 10:29:07 +02:00
Laurent Vivier
9d3019bce3 linux-user: remove useless variable
filename is only used to open the file if AT_EXECFD is not provided.
But exec_path already contains the path of the file to open.
Remove filename as it is only used in main.c whereas exec_path is
also used in syscall.c.

Fixes: d088d664f2 ("linux-user: identify running binary in /proc/self/exe")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190714134028.315-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-10 10:28:50 +02:00
Vladimir Sementsov-Ogievskiy
d885ac33cf iotests: skip 232 when run tests as root
chmod a-w don't help under root, so skip the test in such case.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
cb73747e1a iotests: Test blockdev-create for vpc
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
7c932a1d69 iotests: Restrict nbd Python tests to nbd
We have two Python unittest-style tests that test NBD.  As such, they
should specify supported_protocols=['nbd'] so they are skipped when the
user wants to test some other protocol.

Furthermore, we should restrict their choice of formats to 'raw'.  The
idea of a protocol/format combination is to use some format over some
protocol; but we always use the raw format over NBD.  It does not really
matter what the NBD server uses on its end, and it is not a useful test
of the respective format driver anyway.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
103cbc771e iotests: Restrict file Python tests to file
Most of our Python unittest-style tests only support the file protocol.
You can run them with any other protocol, but the test will simply
ignore your choice and use file anyway.

We should let them signal that they require the file protocol so they
are skipped when you want to test some other protocol.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
88d2aa533a iotests: Add supported protocols to execute_test()
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
1a37e31244 vpc: Return 0 from vpc_co_create() on success
blockdev_create_run() directly uses .bdrv_co_create()'s return value as
the job's return value.  Jobs must return 0 on success, not just any
nonnegative value.  Therefore, using blockdev-create for VPC images may
currently fail as the vpc driver may return a positive integer.

Because there is no point in returning a positive integer anywhere in
the block layer (all non-negative integers are generally treated as
complete success), we probably do not want to add more such cases.
Therefore, fix this problem by making the vpc driver always return 0 in
case of success.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Kevin Wolf
effecce6bc file-posix: Fix has_write_zeroes after NO_FALLBACK
If QEMU_AIO_NO_FALLBACK is given, we always return failure and don't
even try to use the BLKZEROOUT ioctl. In this failure case, we shouldn't
disable has_write_zeroes because we didn't learn anything about the
ioctl. The next request might not set QEMU_AIO_NO_FALLBACK and we can
still use the ioctl then.

Fixes: 738301e117
Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-10 08:58:43 +02:00
Markus Armbruster
6b9d62c2a9 pr-manager: Fix invalid g_free() crash bug
pr_manager_worker() passes its @opaque argument to g_free().  Wrong;
it points to pr_manager_worker()'s automatic @data.  Broken when
commit 2f3a7ab39b converted @data from heap- to stack-allocated.  Fix
by deleting the g_free().

Fixes: 2f3a7ab39b
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
ae6ef01909 iotests: Test reverse sub-cluster qcow2 writes
This exercises the regression introduced in commit
50ba5b2d99.  On my machine, it has close
to a 50 % false-negative rate, but that should still be sufficient to
test the fix.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Max Reitz
b2c6f23f4a block/file-posix: Reduce xfsctl() use
This patch removes xfs_write_zeroes() and xfs_discard().  Both functions
have been added just before the same feature was present through
fallocate():

- fallocate() has supported PUNCH_HOLE for XFS since Linux 2.6.38 (March
  2011); xfs_discard() was added in December 2010.

- fallocate() has supported ZERO_RANGE for XFS since Linux 3.15 (June
  2014); xfs_write_zeroes() was added in November 2013.

Nowadays, all systems that qemu runs on should support both fallocate()
features (RHEL 7's kernel does).

xfsctl() is still useful for getting the request alignment for O_DIRECT,
so this patch does not remove our dependency on it completely.

Note that xfs_write_zeroes() had a bug: It calls ftruncate() when the
file is shorter than the specified range (because ZERO_RANGE does not
increase the file length).  ftruncate() may yield and then discard data
that parallel write requests have written past the EOF in the meantime.
Dropping the function altogether fixes the bug.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Fixes: 50ba5b2d99
Reported-by: Lukáš Doktor <ldoktor@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Vladimir Sementsov-Ogievskiy
bb0c940993 job: drop job_drain
In job_finish_sync job_enter should be enough for a job to make some
progress and draining is a wrong tool for it. So use job_enter directly
here and drop job_drain with all related staff not used more.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Alberto Garcia
b70d08205b qcow2: Fix the calculation of the maximum L2 cache size
The size of the qcow2 L2 cache defaults to 32 MB, which can be easily
larger than the maximum amount of L2 metadata that the image can have.
For example: with 64 KB clusters the user would need a qcow2 image
with a virtual size of 256 GB in order to have 32 MB of L2 metadata.

Because of that, since commit b749562d98
we forbid the L2 cache to become larger than the maximum amount of L2
metadata for the image, calculated using this formula:

    uint64_t max_l2_cache = virtual_disk_size / (s->cluster_size / 8);

The problem with this formula is that the result should be rounded up
to the cluster size because an L2 table on disk always takes one full
cluster.

For example, a 1280 MB qcow2 image with 64 KB clusters needs exactly
160 KB of L2 metadata, but we need 192 KB on disk (3 clusters) even if
the last 32 KB of those are not going to be used.

However QEMU rounds the numbers down and only creates 2 cache tables
(128 KB), which is not enough for the image.

A quick test doing 4KB random writes on a 1280 MB image gives me
around 500 IOPS, while with the correct cache size I get 16K IOPS.

Cc: qemu-stable@nongnu.org
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Peter Maydell
89ea03a7dc Add the m68k next-cube machine
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/m68k-pull-2019-09-07' into staging

Add the m68k next-cube machine

# gpg: Signature made Sat 07 Sep 2019 16:32:53 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "huth@tuxfamily.org"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/m68k-pull-2019-09-07:
  .travis.yml: Let the avocado job run the NeXTcube tests
  tests/acceptance: Add test of NeXTcube framebuffer using OCR
  m68k: Add an entry for the NeXTcube machine to the MAINTAINERS file
  m68k: Add serial controller to the NeXTcube machine
  escc: introduce a selector for the register bit
  m68k: Add NeXTcube machine
  m68k: Add NeXTcube keyboard device
  m68k: Add NeXTcube framebuffer device emulation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-09-09 09:48:34 +01:00
Philippe Mathieu-Daudé
2531164959 .travis.yml: Let the avocado job run the NeXTcube tests
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190813134921.30602-3-philmd@redhat.com>
[huth: Rebased patch to master branch]
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
2019-09-07 08:35:41 +02:00
Philippe Mathieu-Daudé
ca2e7e463f tests/acceptance: Add test of NeXTcube framebuffer using OCR
Add a test of the NeXTcube framebuffer using the Tesseract OCR
engine on a screenshot of the framebuffer device.

The test is very quick:

  $ avocado --show=app,console run tests/acceptance/machine_m68k_nextcube.py
  JOB ID     : 78844a92424cc495bd068c3874d542d1e20f24bc
  JOB LOG    : /home/phil/avocado/job-results/job-2019-08-13T13.16-78844a9/job.log
   (1/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_size: PASS (2.16 s)
   (2/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v3: -
  ue r pun Honl'flx ; 5‘ 55‘
  avg ncaaaaa 25 MHZ, memary jag m
  Backplane slat «a
  Ethernet address a a r a r3 2
  Memgry sackets aea canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
  Memgry sackets a and 1 canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
  [...]
  Yestlnq the rpu, 5::
  system test raneg Errar egge 51
  Egg: cammand
  Default pggc devlce nut fauna
  NEXY>I
  PASS (2.64 s)
   (3/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v4: SKIP: tesseract v4 OCR tool not available
  RESULTS    : PASS 2 | ERROR 0 | FAIL 0 | SKIP 1 | WARN 0 | INTERRUPT 0 | CANCEL 0
  JOB TIME   : 5.35 s

Documentation on how to install tesseract:
  https://github.com/tesseract-ocr/tesseract/wiki#installation

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190813134921.30602-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
2019-09-07 08:33:49 +02:00
Thomas Huth
1810b81501 m68k: Add an entry for the NeXTcube machine to the MAINTAINERS file
I don't have much clue about the NeXT hardware, but at least I know now
the source files a little bit, so I volunteer to pick up patches and send
PULL requests for them until someone else with more knowledge steps up
to do this job instead.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-7-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
2019-09-07 08:32:52 +02:00