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Xiao Guangrong [Thu, 29 Oct 2015 07:31:39 +0000 (15:31 +0800)]
target-i386: Enable clflushopt/clwb/pcommit instructions
These instructions are used by NVDIMM drivers and the specification is
located at:
https://software.intel.com/sites/default/files/managed/0d/53/319433-022.pdf
There instructions are available on Skylake Server.
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Tue, 3 Nov 2015 19:24:18 +0000 (17:24 -0200)]
target-i386: Remove POPCNT from qemu64 and qemu32 CPU models
POPCNT is not available on Penryn and older and on Opteron_G2 and older,
and we want to make the default CPU runnable in most hosts, so it won't
be enabled by default in KVM mode.
We should eventually have all features supported by TCG enabled by
default in TCG mode, but as we don't have a good mechanism today to
ensure we have different defaults in KVM and TCG mode, disable POPCNT in
the qemu64 and qemu32 CPU models entirely.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Tue, 3 Nov 2015 19:24:18 +0000 (17:24 -0200)]
target-i386: Remove ABM from qemu64 CPU model
ABM is not available on Sandy Bridge and older, and we want to make the
default CPU runnable in most hosts, so it won't be enabled by default in
KVM mode.
We should eventually have all features supported by TCG enabled by
default in TCG mode, but as we don't have a good mechanism today to
ensure we have different defaults in KVM and TCG mode, disable ABM in
the qemu64 CPU model entirely.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Tue, 3 Nov 2015 19:17:33 +0000 (17:17 -0200)]
target-i386: Remove SSE4a from qemu64 CPU model
SSE4a is not available in any Intel CPU, and we want to make the default
CPU runnable in most hosts, so it doesn't make sense to enable it by
default in KVM mode.
We should eventually have all features supported by TCG enabled by
default in TCG mode, but as we don't have a good mechanism today to
ensure we have different defaults in KVM and TCG mode, disable SSE4a in
the qemu64 CPU model entirely.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Tue, 3 Nov 2015 19:18:50 +0000 (17:18 -0200)]
target-i386: Set "check=off" by default on pc-*-2.4 and older
The default CPU model (qemu64) have some issues today: it enables some
features (ABM and SSE4a) that are not present in many host CPUs. That
means many hosts (but not all of them) had those features silently
disabled in the default configuration in QEMU 2.4 and older.
With the new "check=on" default, this causes warnings to be printed in
the default configuration, because of the lack of SSE4A on all Intel
hosts, and the lack of ABM on Sandy Bridge and older hosts:
$ qemu-system-x86_64 -machine pc,accel=kvm
warning: host doesn't support requested feature: CPUID.80000001H:ECX.abm [bit 5]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.sse4a [bit 6]
Those issues will be fixed in pc-*-2.5 and newer. But as we can't change
the guest ABI in pc-*-2.4, disable "check" mode by default in pc-*-2.4
and older so we don't print spurious warnings.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell [Thu, 5 Nov 2015 14:31:24 +0000 (14:31 +0000)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* Guest ABI fixes for PC machines (hw_version)
* Fixes for recent Perl
* John Snow's configure fixes
* file-backed RAM improvements (Igor, Pavel)
* -Werror=clobbered fixes (Stefan)
* Kill -d ioport
* Fix qemu-system-s390x
* Performance improvement for kvmclock migration
# gpg: Signature made Thu 05 Nov 2015 13:42:27 GMT using RSA key ID
78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
* remotes/bonzini/tags/for-upstream:
iscsi: Translate scsi sense into error code
Revert "Introduce cpu_clean_all_dirty"
kvmclock: add a new function to update env->tsc.
configure: disable FORTIFY_SOURCE under clang
backends/hostmem-file: Allow to specify full pathname for backing file
configure: disallow ccache during compile tests
cpu-exec: Fix compiler warning (-Werror=clobbered)
memory: call begin, log_start and commit when registering a new listener
megasas: Use qemu_hw_version() instead of QEMU_VERSION
osdep: Rename qemu_{get, set}_version() to qemu_{, set_}hw_version()
pc: Set hw_version on all machine classes
qemu-log: remove -d ioport
ioport: do not use CPU_LOG_IOPORT
target-i386: fix pcmpxstrx equal-ordered (strstr) mode
scripts/text2pod.pl: Escape left brace
file_ram_alloc: propagate error to caller instead of terminating QEMU
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fam Zheng [Thu, 5 Nov 2015 05:00:09 +0000 (13:00 +0800)]
iscsi: Translate scsi sense into error code
Previously we return -EIO blindly when anything goes wrong. Add a helper
function to parse sense fields and try to make the return code more
meaningful.
This also fixes the default werror configuration (enospc) when we're
using qcow2 on an iscsi lun. The old -EIO not being treated as out of
space error failed to trigger vm stop.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <
1446699609-11376-1-git-send-email-famz@redhat.com>
[libiscsi 1.9 compatibility - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Thu, 5 Nov 2015 10:52:35 +0000 (10:52 +0000)]
Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2015-11-04-tag' into staging
qemu-ga patch queue
* fix file handle cleanup on w32
* use non-blocking mode for file handles on w32 to avoid
hangs on guest-file-read/guest-file-write to pipes
# gpg: Signature made Wed 04 Nov 2015 19:36:16 GMT using RSA key ID
F108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg: aka "Michael Roth <mdroth@utexas.edu>"
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
* remotes/mdroth/tags/qga-pull-2015-11-04-tag:
qga: set file descriptor in qmp_guest_file_open non-blocking on Win32
qga: fixed CloseHandle in qmp_guest_file_open
qga: drop hand-made guest_file_toggle_flags helper
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Liang Li [Thu, 5 Nov 2015 03:51:04 +0000 (11:51 +0800)]
Revert "Introduce cpu_clean_all_dirty"
This reverts commit
de9d61e83d43be9069e6646fa9d57a3f47779d28.
Now 'cpu_clean_all_dirty' is useless, we can revert the related code.
Conflicts:
include/sysemu/kvm.h
Signed-off-by: Liang Li <liang.z.li@intel.com>
Message-Id: <
1446695464-27116-3-git-send-email-liang.z.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Liang Li [Thu, 5 Nov 2015 03:51:03 +0000 (11:51 +0800)]
kvmclock: add a new function to update env->tsc.
The commit
317b0a6d8 fixed an issue which caused by the outdated
env->tsc value, but the fix lead to 'cpu_synchronize_all_states()'
called twice during live migration. The 'cpu_synchronize_all_states()'
takes about 130us for a VM which has 4 vcpus, it's a bit expensive.
Synchronize the whole CPU context just for updating env->tsc is too
wasting, this patch use a new function to update the env->tsc.
Comparing to 'cpu_synchronize_all_states()', it only takes about 20us.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Message-Id: <
1446695464-27116-2-git-send-email-liang.z.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
John Snow [Tue, 3 Nov 2015 20:43:42 +0000 (15:43 -0500)]
configure: disable FORTIFY_SOURCE under clang
Some versions of clang may have difficulty compiling glibc headers when
-D_FORTIFY_SOURCE is used. For example, Clang++ 3.5.0-9.fc22 cannot
compile glibc's stdio headers when -D_FORTIFY_SOURCE=2 is used. This
manifests currently as build failures with clang and any arm target.
According to LLVM dev Richard Smith, clang does not target or support
FORTIFY_SOURCE + glibc, and it should not be relied on.
"It's still an unsupported combination, and while it might compile, some
of the checks are unlikely to work because they require a frontend
inliner to be useful"
See: http://lists.llvm.org/pipermail/cfe-dev/2015-November/045846.html
Conclusion: disable fortify-source if we appear to be using clang instead
of testing for compile success or failure, which may be incidental or not
indicative of proper support of the feature.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <
1446583422-10153-1-git-send-email-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Thu, 5 Nov 2015 10:10:57 +0000 (10:10 +0000)]
Merge remote-tracking branch 'remotes/juanquintela/tags/migration/
20151104' into staging
migration/next for
20151104
# gpg: Signature made Wed 04 Nov 2015 12:45:19 GMT using RSA key ID
5872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg: aka "Juan Quintela <quintela@trasno.org>"
* remotes/juanquintela/tags/migration/
20151104:
migration: fix analyze-migration.py script
migration: code clean up
migration: rename cancel to cleanup in SaveVMHandles
migration: rename qemu_savevm_state_cancel
migration: defer migration_end & blk_mig_cleanup
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 4 Nov 2015 18:20:31 +0000 (18:20 +0000)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2015-11-03' into staging
vl.c: Error message rework
# gpg: Signature made Tue 03 Nov 2015 08:40:50 GMT using RSA key ID
EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
* remotes/armbru/tags/pull-error-2015-11-03:
vl.c: Use "%s support is disabled" error messages consistently
vl.c: Improve warnings on use of deprecated options
vl.c: Touch up error messages
vl.c: Remove unnecessary uppercase in error messages
vl.c: Use "warning:" prefix consistently on warnings
vl.c: Remove periods and exclamation points from error messages
vl.c: Replace fprintf(stderr) with error_report()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pavel Fedin [Wed, 28 Oct 2015 09:54:07 +0000 (12:54 +0300)]
backends/hostmem-file: Allow to specify full pathname for backing file
This allows to explicitly specify file name to use with the backend. This
is important when using it together with ivshmem in order to make it backed
by hugetlbfs. By default filename is autogenerated using mkstemp(), and the
file is unlink()ed after creation, effectively making it anonymous. This is
not very useful with ivshmem because it ends up in a memory which cannot be
accessed by something else.
Distinction between directory and file name is done by stat() check. If an
existing directory is given, the code keeps old behavior. Otherwise it
creates or opens a file with the given pathname.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Tested-by: Igor Skalkin <i.skalkin@samsung.com>
Message-Id: <
004301d11166$
9672fe30$
c358fa90$@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
John Snow [Wed, 28 Oct 2015 17:56:40 +0000 (13:56 -0400)]
configure: disallow ccache during compile tests
If the user is using ccache during the configuration step,
it may interfere with some of the configuration tests,
particularly the "Is ccache interfering with macro analysis" step,
which is a bit of a poetic problem.
1) Disallow ccache from reading from the cache during configure,
but don't disable it entirely to allow us to see if it causes other
problems.
2) Force off CCACHE_CPP2 during the ccache test to get a deterministic
answer over whether or not we need to enable that feature later.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <
1446055000-29150-1-git-send-email-jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stefan Weil [Sat, 26 Sep 2015 11:23:26 +0000 (13:23 +0200)]
cpu-exec: Fix compiler warning (-Werror=clobbered)
Reloading of local variables after sigsetjmp is only needed for some
buggy compilers.
The code which should reload these variables causes compiler warnings
with gcc 4.7 when compiler optimizations are enabled:
cpu-exec.c:204:15: error:
variable ‘cpu’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
cpu-exec.c:207:15: error:
variable ‘cc’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
cpu-exec.c:202:28: error:
argument ‘env’ might be clobbered by ‘longjmp’ or ‘vfork’ [-Werror=clobbered]
Now this code is only used for compilers which need it
(and gcc 4.5.x, x > 0 which does not need it but won't give warnings).
There were bug reports for clang and gcc 4.5.0, while gcc 4.5.1
was reported to work fine without the reload code. For clang it
is not clear which versions are affected, so simply keep the status quo
for all clang compilations. This can be improved later.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <
1443266606-21400-1-git-send-email-sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 2 Nov 2015 08:23:52 +0000 (09:23 +0100)]
memory: call begin, log_start and commit when registering a new listener
This ensures that cpu_reload_memory_map() is called as soon as
tcg_cpu_address_space_init() is called, and before cpu->memory_dispatch
is used. qemu-system-s390x never changes the address spaces after
tcg_cpu_address_space_init() is called, and thus tcg_commit() is never
called. This causes a SIGSEGV.
Because memory_map_init() will now call mem_commit(), we have to
initialize io_mem_* before address_space_memory and friends.
Reported-by: Philipp Kern <pkern@debian.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Fixes:
0a1c71cec63e95f9b8d0dc96d049d2daa00c5210
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 19:36:09 +0000 (17:36 -0200)]
megasas: Use qemu_hw_version() instead of QEMU_VERSION
Guest visible data shouldn't change with a simple QEMU upgrade, so use
qemu_hw_version() to ensure it won't change (as long as the machine
class being used has hw_version set).
Cc: Hannes Reinecke <hare@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-block@nongnu.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446233769-7892-4-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 19:36:08 +0000 (17:36 -0200)]
osdep: Rename qemu_{get, set}_version() to qemu_{, set_}hw_version()
This makes the purpose of the function clearer: it is not about the
version of QEMU that's running, but the version string exposed in the
emulated hardware.
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: John Snow <jsnow@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446233769-7892-3-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 19:36:07 +0000 (17:36 -0200)]
pc: Set hw_version on all machine classes
In 2012, QEMU had a bug where it exposed QEMU version information to the
guest, meaning a QEMU upgrade would expose different hardware to the
guest OS even if the same machine-type is being used.
The bug was fixed by commit
93bfef4c6e4b23caea9d51e1099d06433d8835a4, on
all machines up to pc-1.0. But we kept introducing the same bug on all
newer machines since then. That means we are breaking guest ABI every
time QEMU was upgraded.
Fix this by setting the hw_version on all PC machines, making sure the
hardware won't change when upgrading QEMU.
Note that QEMU_VERSION was "1.0" in QEMU 1.0, but starting on QEMU
1.1.0, it started following the "x.y.0" pattern. We have to follow it,
to make sure we use the right QEMU_VERSION string from each QEMU
release.
The 2.5 machine classes could have hw_version unset, because the default
value for qemu_get_version() is QEMU_VERSION. But I decided to set it
explicitly to QEMU_VERSION so we don't forget to update it to "2.5.0"
after we release 2.5.0 and create a 2.6 machine class.
Reported-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446233769-7892-2-git-send-email-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 16 Oct 2015 13:09:01 +0000 (15:09 +0200)]
qemu-log: remove -d ioport
It was disabled at compile-time, and is now replaced by tracepoints.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 16 Oct 2015 13:08:34 +0000 (15:08 +0200)]
ioport: do not use CPU_LOG_IOPORT
These messages are disabled by default; a perfect usecase for tracepoints,
which in fact already exist. Add the missing information to them and
stop using qemu_log_mask.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 12 Oct 2015 09:50:27 +0000 (11:50 +0200)]
target-i386: fix pcmpxstrx equal-ordered (strstr) mode
In this mode, referring an invalid element of the source forces the
result to false (table 4-7, last column) but referring an invalid
element of the destination forces the result to true, so the outer
loop should still be run even if some elements of the destination
will be invalid. They will be avoided in the inner loop, which
correctly bounds "i" to validd, but they will still contribute to a
positive outcome of the search.
This fixes tst_strstr in glibc 2.17.
Reported-by: Florian Weimer <fweimer@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Olga Krishtal [Wed, 28 Oct 2015 15:13:57 +0000 (18:13 +0300)]
qga: set file descriptor in qmp_guest_file_open non-blocking on Win32
Set fd non-blocking to avoid common use cases (like reading from a
named pipe) from hanging the agent. This was missed in the original
code.
The patch introduces qemu_set_handle_nonoblocking, the local analog
of qemu_set_nonblock for HANDLES.
The usage of handles in qemu_set_non/block is impossible, because for
win32 there is a difference between file discriptors and file handles,
and all file ops are made via Win32 api.
Signed-off-by: Olga Krishtal <okrishtal@parallels.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
CC: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Olga Krishtal [Wed, 28 Oct 2015 15:13:56 +0000 (18:13 +0300)]
qga: fixed CloseHandle in qmp_guest_file_open
CloseHandle use HANDLE as an argument, but not *HANDLE
Signed-off-by: Olga Krishtal <okrishtal@parallels.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Denis V. Lunev [Wed, 28 Oct 2015 15:13:55 +0000 (18:13 +0300)]
qga: drop hand-made guest_file_toggle_flags helper
We'd better use generic qemu_set_nonblock directly.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Mark Cave-Ayland [Sat, 5 Sep 2015 19:51:48 +0000 (20:51 +0100)]
migration: fix analyze-migration.py script
Commit 61964 "Add configuration section" broke the analyze-migration.py script
which terminates due to the unrecognised section. Fix the script by parsing
the contents of the configuration section directly into a new
ConfigurationSection object (although nothing is done with it yet).
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Juan Quintela <quintela@redhat.com>al3
Signed-off-by: Juan Quintela <quintela@redhat.com>al3
Liang Li [Mon, 2 Nov 2015 07:37:03 +0000 (15:37 +0800)]
migration: code clean up
Just clean up code, no behavior change.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>al3
Reviewed-by: Amit Shah <amit.shah@redhat.com>al3
Signed-off-by: Juan Quintela <quintela@redhat.com>al3
Liang Li [Mon, 2 Nov 2015 07:37:02 +0000 (15:37 +0800)]
migration: rename cancel to cleanup in SaveVMHandles
'cleanup' seems more appropriate than 'cancel'.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>al3
Reviewed-by: Amit Shah <amit.shah@redhat.com>al3
Signed-off-by: Juan Quintela <quintela@redhat.com>al3
Liang Li [Mon, 2 Nov 2015 07:37:01 +0000 (15:37 +0800)]
migration: rename qemu_savevm_state_cancel
The function qemu_savevm_state_cancel is called after the migration
in migration_thread, it seems strange to 'cancel' it after completion,
rename it to qemu_savevm_state_cleanup looks better.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>al3
Reviewed-by: Amit Shah <amit.shah@redhat.com>al3
Signed-off-by: Juan Quintela <quintela@redhat.com>al3
Liang Li [Mon, 2 Nov 2015 07:37:00 +0000 (15:37 +0800)]
migration: defer migration_end & blk_mig_cleanup
Because of the patch
3ea3b7fa9af067982f34b of kvm, which introduces a
lazy collapsing of small sptes into large sptes mechanism, now
migration_end() is a time consuming operation because it calls
memroy_global_dirty_log_stop(), which will trigger the dropping of small
sptes operation and takes about dozens of milliseconds, so call
migration_end() before all the vmsate data has already been transferred
to the destination will prolong VM downtime. This operation should be
deferred after all the data has been transferred to the destination.
blk_mig_cleanup() can be deferred too.
For a VM with 8G RAM, this patch can reduce the VM downtime about 30 ms.
Signed-off-by: Liang Li <liang.z.li@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>al3
Reviewed-by: Amit Shah <amit.shah@redhat.com>al3
Signed-off-by: Juan Quintela <quintela@redhat.com>al3
Peter Maydell [Tue, 3 Nov 2015 14:54:40 +0000 (14:54 +0000)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20151103' into staging
target-arm queue:
* code cleanup to use symbolic constants for register bank numbers
* fix direct booting of modern Linux kernels on xilinx_zynq by setting
SCLR values to what the kernel expects firmware to have done
* implement SYSRESETREQ for ARMv7M CPU (stellaris boards)
* update MAINTAINERS to mention new qemu-arm mailing list
* clean up display of PSTATE in AArch64 debug logs
* report Secure/Nonsecure status in CPU debug logs
* fix a missing _CCA attribute in ACPI tables
* add support for GICv3 to ACPI tables
# gpg: Signature made Tue 03 Nov 2015 13:58:46 GMT using RSA key ID
14360CDE
# 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>"
* remotes/pmaydell/tags/pull-target-arm-
20151103:
ARM: ACPI: Fix MPIDR value in ACPI table
hw/arm/virt-acpi-build: Add GICC ACPI subtable for GICv3
hw/arm/virt-acpi-build: _CCA attribute is compulsory
target-arm: Report S/NS status in the CPU debug logs
target-arm: Bring AArch64 debug CPU display of PSTATE into line with AArch32
MAINTAINERS: Add new qemu-arm mailing list to ARM related entries
arm: stellaris: exit on external reset request
armv7-m: Implement SYSRESETREQ
armv7-m: Return DeviceState* from armv7m_init()
arm: xilinx_zynq: Add linux pre-boot
arm: boot: Add board specific setup code API
arm: boot: Adjust indentation of FIXUP comments
target-arm: Add and use symbolic names for register banks
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 3 Nov 2015 14:09:59 +0000 (14:09 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-
20151103-1' into staging
usb: two bugfixes for ehci & usb-host.
# gpg: Signature made Tue 03 Nov 2015 10:57:28 GMT using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-usb-
20151103-1:
usb-host: fix usb3ep0quirk test
ehci: clear suspend bit on detach
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Shannon Zhao [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
ARM: ACPI: Fix MPIDR value in ACPI table
Use mp_affinity of ARMCPU as the CPU MPIDR instead of the CPU index.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id:
1446285001-7316-1-git-send-email-zhaoshenglong@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Shannon Zhao [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
hw/arm/virt-acpi-build: Add GICC ACPI subtable for GICv3
When booting VM with GICv3, the kernel needs GICC ACPI subtable to
initialize the CPUs, e.g. MPIDR information. This adds GICC ACPI
subtable for GICv3, but set GICC base address only when gic_version == 2
since it donesn't need GICC base address for GICv3.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id:
1446131773-5018-1-git-send-email-shannon.zhao@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Graeme Gregory [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
hw/arm/virt-acpi-build: _CCA attribute is compulsory
According to ACPI specification 6.2.17 _CCA (Cache Coherency Attribute)
this attribute is compulsory on ARM systems. Add this attribute to
the PCI host bridges as required.
Without this the kernel will produce the error
[Firmware Bug]: PCI device 0000:00:00.0 fail to setup DMA.
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Message-id:
1446460786-13663-1-git-send-email-graeme.gregory@linaro.org
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
target-arm: Report S/NS status in the CPU debug logs
If this CPU supports EL3, enhance the printing of the current
CPU mode in debug logging to distinguish S from NS modes as
appropriate.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id:
1445883178-576-3-git-send-email-peter.maydell@linaro.org
Peter Maydell [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
target-arm: Bring AArch64 debug CPU display of PSTATE into line with AArch32
The AArch64 debug CPU display of PSTATE as "PSTATE=
200003c5 (flags --C-)"
on the end of the same line as the last of the general purpose registers
is unnecessarily different from the AArch32 display of PSR as
"PSR=
200001d3 --C- A svc32" on its own line. Update the AArch64
code to put PSTATE in its own line and in the same format, including
printing the exception level (mode).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id:
1445883178-576-2-git-send-email-peter.maydell@linaro.org
Peter Maydell [Tue, 3 Nov 2015 13:49:42 +0000 (13:49 +0000)]
MAINTAINERS: Add new qemu-arm mailing list to ARM related entries
We now have a qemu-arm mailing list for ARM patches and discussion,
so add an L: entry for it to the various ARM related entries in
MAINTAINERS.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
1446129661-5239-1-git-send-email-peter.maydell@linaro.org
Michael Davidsaver [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
arm: stellaris: exit on external reset request
Add GPIO in for the stellaris board which calls
qemu_system_reset_request() on reset request.
Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Michael Davidsaver [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
armv7-m: Implement SYSRESETREQ
Implement the SYSRESETREQ bit of the AIRCR register
for armv7-m (ie. cortex-m3) to trigger a GPIO out.
Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Michael Davidsaver [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
armv7-m: Return DeviceState* from armv7m_init()
Change armv7m_init to return the DeviceState* for the NVIC.
This allows access to all GPIO blocks, not just the IRQ inputs.
Move qdev_get_gpio_in() calls out of armv7m_init() into
board code for stellaris and stm32f205 boards.
Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
arm: xilinx_zynq: Add linux pre-boot
Add a Linux-specific pre-boot routine that matches the device-
specific bootloaders behaviour. This is needed for modern Linux that
expects the ARM PLL in SLCR to be a more even value (not 26).
Cc: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
9a9025ea65572586b50dca4e5819032e3c436d64.
1446182614.git.crosthwaite.peter@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
arm: boot: Add board specific setup code API
Add an API for boards to inject their own preboot software (or
firmware) sequence.
The software then returns to the bootloader via the link register. This
allows boards to do their own little bits of firmware setup without
needed to replace the bootloader completely (which is the requirement
for existing firmware support).
The blob is loaded by a callback if and only if doing a linux boot
(similar to the existing write_secondary support).
Rewrite the comment for the primary boot blob.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
070295644c6ac84696d743913296e8cfefb48c15.
1446182614.git.crosthwaite.peter@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
arm: boot: Adjust indentation of FIXUP comments
These comments start immediately after the current longest name in the
list. Tab them out to the next tab stop to give a little breathing room
and prepare for FIXUP_BOARD_SETUP which will require more indent.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
b9b9bb8f1c307c1ef8a3f26ff1f34fabb34b332e.
1446182614.git.crosthwaite.peter@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Soren Brinkmann [Tue, 3 Nov 2015 13:49:41 +0000 (13:49 +0000)]
target-arm: Add and use symbolic names for register banks
Add BANK_<cpumode> #defines to index banked registers.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Gerd Hoffmann [Fri, 23 Oct 2015 12:27:10 +0000 (14:27 +0200)]
usb-host: fix usb3ep0quirk test
usb->speed is the usb speed the device is actually running on in the
qemu emulation (i.e. from the guests point of view). So when plugging
usb3 devices into ehci hostadapter this is HIGH not SUPER.
To figure whenever the host talks to the device with superspeed we
have to check speedmask instead and see whenever the superspeed bit
is set there.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1445603230-11840-1-git-send-email-kraxel@redhat.com
Gerd Hoffmann [Wed, 21 Oct 2015 07:44:22 +0000 (09:44 +0200)]
ehci: clear suspend bit on detach
When a device is detached, clear the suspend bit (PORTSC_SUSPEND)
in the port status register.
The specs are not *that* clear what is supposed to happen in case
a suspended device is unplugged. But the enable bit (PORTSC_PED)
is cleared, and the specs mention setting suspend with enable being
unset is undefined behavior. So clearing them both looks reasonable,
and it actually fixes the reported bug.
https://bugzilla.redhat.com/show_bug.cgi?id=
1268879
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Message-id:
1445413462-18004-1-git-send-email-kraxel@redhat.com
Peter Maydell [Tue, 3 Nov 2015 10:20:04 +0000 (10:20 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-
20151103-1' into staging
ui: fixes for vnc, opengl and curses.
# gpg: Signature made Tue 03 Nov 2015 09:53:24 GMT using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-ui-
20151103-1:
vnc: fix bug: vnc server can't start when 'to' is specified
vnc: allow fall back to RAW encoding
ui/opengl: Reduce build required libraries for opengl
ui/curses: Fix pageup/pagedown on -curses
ui/curses: Support line graphics chars on -curses mode
ui/curses: Fix monitor color with -curses when 256 colors
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Yang Hongyang [Tue, 27 Oct 2015 06:10:52 +0000 (14:10 +0800)]
vnc: fix bug: vnc server can't start when 'to' is specified
commit
e0d03b8ceb52 converted VNC startup to use SocketAddress,
the interface socket_listen don't have a port_offset param, so
we need to add the port offset (5900) to both 'port' and 'to' opts.
currently only 'port' is added by offset.
This patch add the port offset to 'to' opts.
Signed-off-by: Yang Hongyang <hongyang.yang@easystack.cn>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id:
1445926252-14830-1-git-send-email-hongyang.yang@easystack.cn
Cc: Daniel P. Berrange <berrange@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Peter Lieven [Thu, 27 Aug 2015 12:46:25 +0000 (14:46 +0200)]
vnc: allow fall back to RAW encoding
I have observed that depending on the contents and the encoding it happens
that sending data as RAW sometimes would take less space than the encoded data.
This is especially the case for small updates or areas with high color images.
If sending RAW encoded data is beneficial allow a fall back to RAW encoding
for the framebuffer update.
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
OGAWA Hirofumi [Mon, 26 Oct 2015 17:45:48 +0000 (02:45 +0900)]
ui/opengl: Reduce build required libraries for opengl
We now use epoxy to load opengl libraries. This means we don't need to
link opengl libraries directly if interfaces handled by epoxy. With
this, we just need epoxy headers and epoxy's *.so to build.
Tested with epoxy-1.3.1.
- sdl2/gtk/console egl stuff doesn't require other than epoxy
- milkymist-tmu2 glx stuff doesn't require other than epoxy
(lm32 test is limited, because can't find mmone-bios.bin, so just test
to load libGL with "./lm32-softmmu/qemu-system-lm32 -M milkymist,accel=qtest")
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
[ lm32 tested by kraxel ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
OGAWA Hirofumi [Mon, 19 Oct 2015 12:24:07 +0000 (21:24 +0900)]
ui/curses: Fix pageup/pagedown on -curses
Current KEY_NPAGE/KEY_PPAGE handling is broken on -curses. Those uses
"GREY", but "KEY_MASK" masked out "GREY".
To fix, we have to use correct mask value - SCANCODE_KEYMASK.
Then, this adds support of "shift + pageup/pagedown". With this,
-curses mode can use scroll-up/down as usual like other display modes.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
OGAWA Hirofumi [Mon, 19 Oct 2015 12:23:46 +0000 (21:23 +0900)]
ui/curses: Support line graphics chars on -curses mode
This converts vga code to curses code in console_write_bh().
With this changes, we can see line graphics (for example, dialog uses)
correctly.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
OGAWA Hirofumi [Mon, 19 Oct 2015 12:23:10 +0000 (21:23 +0900)]
ui/curses: Fix monitor color with -curses when 256 colors
If TERM=xterm-256color, COLOR_PAIRS==256 and monitor passes chtype
like 0x74xx. Then, the code uses uninitialized color pair. As result,
monitor uses black for both of fg and bg color, i.e. terminal is
filled by black.
To fix, this initialize above than 64 with default color (fg=white,bg=black).
FIXME: on 256 color, curses may be possible better vga color emulation.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:08:02 +0000 (13:08 -0200)]
vl.c: Use "%s support is disabled" error messages consistently
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-12-git-send-email-ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:08:00 +0000 (13:08 -0200)]
vl.c: Improve warnings on use of deprecated options
Simplify warnings about deprecated options by rewriting them as
"warning: ignoring deprecated option".
Reword -no-kvm-pit-reinjection deprecation warning.
Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-10-git-send-email-ehabkost@redhat.com>
[Squashed in
Message-Id: <
1446217682-24421-11-git-send-email-ehabkost@redhat.com>
and updated commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:07:56 +0000 (13:07 -0200)]
vl.c: Touch up error messages
Several small improvements:
* Use "cannot" instead of "can not"
* Use 'quotes' instead of `quotes'
* Change "fail to parse" error message to "failed to parse"
Suggested-by: Eric Blake <eblake@redhat.com>
Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-6-git-send-email-ehabkost@redhat.com>
[Squashed in
Message-Id: <
1446217682-24421-7-git-send-email-ehabkost@redhat.com>
Message-Id: <
1446217682-24421-9-git-send-email-ehabkost@redhat.com>
and updated commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:07:58 +0000 (13:07 -0200)]
vl.c: Remove unnecessary uppercase in error messages
Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-8-git-send-email-ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:07:55 +0000 (13:07 -0200)]
vl.c: Use "warning:" prefix consistently on warnings
Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-5-git-send-email-ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:07:54 +0000 (13:07 -0200)]
vl.c: Remove periods and exclamation points from error messages
Except for removing periods and exclamation points, no other changes
were made to the error messages (yet).
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-4-git-send-email-ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eduardo Habkost [Fri, 30 Oct 2015 15:07:52 +0000 (13:07 -0200)]
vl.c: Replace fprintf(stderr) with error_report()
Straightforward replacement, except for qemu_kill_report(), which
printed a common part of its error message first, then the applicable
special part. Print each complete message with a single
error_report() instead.
Multi-line messages were replaced by error_report() followed by
error_printf().
The following changes were made to the error messages:
* The "invalid date format" message was reworded to better fit
the new error_report()+error_printf() pattern.
* On the remaining messages, only the trailing newlines, "qemu:" and
"error:" message prefixes were removed.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <
1446217682-24421-2-git-send-email-ehabkost@redhat.com>
[Squashed in
Message-Id: <
1446217682-24421-3-git-send-email-ehabkost@redhat.com>
and updated commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Fam Zheng [Tue, 20 Oct 2015 07:38:46 +0000 (15:38 +0800)]
scripts/text2pod.pl: Escape left brace
Latest perl now deprecates "{" literal in regex and print warnings like
"unescaped left brace in regex is deprecated". Add escapes to keep it
happy.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <
1445326726-16031-1-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Igor Mammedov [Mon, 19 Oct 2015 17:11:11 +0000 (19:11 +0200)]
file_ram_alloc: propagate error to caller instead of terminating QEMU
QEMU shouldn't exits from file_ram_alloc() if -mem-prealloc option is specified
and "object_add memory-backend-file,..." fails allocation during memory hotplug.
Propagate error to a caller and let it decide what to do with allocation failure.
That leaves QEMU alive if it can't create backend during hotplug time and
kills QEMU at startup time if backends or initial memory were misconfigured/
too large.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <
1445274671-17704-1-git-send-email-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Mon, 2 Nov 2015 11:11:39 +0000 (11:11 +0000)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-11-02' into staging
QAPI patches
# gpg: Signature made Mon 02 Nov 2015 09:07:23 GMT using RSA key ID
EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
* remotes/armbru/tags/pull-qapi-2015-11-02: (25 commits)
qapi: Simplify gen_struct_field()
qapi: Reserve 'u' member name
qapi: Finish converting to new qapi union layout
tpm: Convert to new qapi union layout
memory: Convert to new qapi union layout
input: Convert to new qapi union layout
char: Convert to new qapi union layout
net: Convert to new qapi union layout
sockets: Convert to new qapi union layout
block: Convert to new qapi union layout
tests: Convert to new qapi union layout
qapi-visit: Convert to new qapi union layout
qapi: Start converting to new qapi union layout
qapi-visit: Remove redundant functions for flat union base
qapi: Unbox base members
qapi: Prefer typesafe upcasts to qapi base classes
qapi-types: Refactor base fields output
qapi-visit: Split off visit_type_FOO_fields forward decl
vnc: Hoist allocation of VncBasicInfo to callers
qapi: Reserve 'q_*' and 'has_*' member names
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Mon, 26 Oct 2015 22:35:03 +0000 (16:35 -0600)]
qapi: Simplify gen_struct_field()
Rather than having all callers pass a name, type, and optional
flag, have them instead pass a QAPISchemaObjectTypeMember which
already has all that information.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-25-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:35:02 +0000 (16:35 -0600)]
qapi: Reserve 'u' member name
Now that we have separated union tag values from colliding with
non-variant C names, by naming the union 'u', we should reserve
this name for our use. Note that we want to forbid 'u' even in
a struct with no variants, because it is possible for a future
qemu release to extend QMP in a backwards-compatible manner while
converting from a struct to a flat union. Fortunately, no
existing clients were using this member name. If we ever find
the need for QMP to have a member 'u', we could at that time
relax things, perhaps by having c_name() munge the QMP member to
'q_u'.
Note that we cannot forbid 'u' everywhere (by adding the
rejection code to check_name()), because the existing QKeyCode
enum already uses it; therefore we only reserve it as a struct
type member name.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-24-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:35:01 +0000 (16:35 -0600)]
qapi: Finish converting to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
This patch is the back end for a series that converts to a
saner qapi union layout. Now that all clients have been
converted to use 'type' and 'obj->u.value', we can drop the
temporary parallel support for 'kind' and 'obj->value'.
Given a simple union qapi type:
{ 'union':'Foo', 'data': { 'a':'int', 'b':'bool' } }
this is the overall effect, when compared to the state before
this series of patches:
| struct Foo {
|- FooKind kind;
|- union { /* union tag is @kind */
|+ FooKind type;
|+ union { /* union tag is @type */
| void *data;
| int64_t a;
| bool b;
|- };
|+ } u;
| };
The testsuite still contains some examples of artificial restrictions
(see flat-union-clash-type.json, for example) that are no longer
technically necessary, now that there is no longer a collision between
enum tag values and non-variant member names; but fixing this will be
done in later patches, in part because some further changes are required
to keep QAPISchema*.check() from asserting. Also, a later patch will
add a reservation for the member name 'u' to avoid a collision between a
user's non-variant names and our internal choice of C union name.
Note, however, that we do not rename the generated enum, which
is still 'FooKind'. A further patch could generate implicit
enums as 'FooType', but while the generator already reserved
the '*Kind' namespace (commit
4dc2e69), there are already QMP
constructs with '*Type' naming, which means changing our
reservation namespace would have lots of churn to C code to
deal with a forced name change.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-23-git-send-email-eblake@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:35:00 +0000 (16:35 -0600)]
tpm: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for TPM-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-22-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:59 +0000 (16:34 -0600)]
memory: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for memory-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-21-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:58 +0000 (16:34 -0600)]
input: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for input-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-20-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:57 +0000 (16:34 -0600)]
char: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for character-related
code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-19-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:56 +0000 (16:34 -0600)]
net: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for net-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-18-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:55 +0000 (16:34 -0600)]
sockets: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for socket-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-17-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:54 +0000 (16:34 -0600)]
block: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for block-related code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-16-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:53 +0000 (16:34 -0600)]
tests: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for testsuite code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-15-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:52 +0000 (16:34 -0600)]
qapi-visit: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
Make the conversion to the new layout for qapi-visit.py.
Generated code changes look like:
|@@ -4912,16 +4912,16 @@ void visit_type_MemoryDeviceInfo(Visitor
| if (!*obj) {
| goto out_obj;
| }
|- visit_type_MemoryDeviceInfoKind(v, &(*obj)->kind, "type", &err);
|+ visit_type_MemoryDeviceInfoKind(v, &(*obj)->type, "type", &err);
| if (err) {
| goto out_obj;
| }
|- if (!visit_start_union(v, !!(*obj)->data, &err) || err) {
|+ if (!visit_start_union(v, !!(*obj)->u.data, &err) || err) {
| goto out_obj;
| }
|- switch ((*obj)->kind) {
|+ switch ((*obj)->type) {
| case MEMORY_DEVICE_INFO_KIND_DIMM:
|- visit_type_PCDIMMDeviceInfo(v, &(*obj)->dimm, "data", &err);
|+ visit_type_PCDIMMDeviceInfo(v, &(*obj)->u.dimm, "data", &err);
| break;
| default:
| abort();
|@@ -4930,7 +4930,7 @@ out_obj:
| error_propagate(errp, err);
| err = NULL;
| if (*obj) {
|- visit_end_union(v, !!(*obj)->data, &err);
|+ visit_end_union(v, !!(*obj)->u.data, &err);
| }
| error_propagate(errp, err);
| err = NULL;
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-14-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:51 +0000 (16:34 -0600)]
qapi: Start converting to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.
This patch is the front end for a series that converts to a
saner qapi union layout. By the end of the series, we will no
longer have the type/kind mismatch, and all tag values will be
under a named union, which requires clients to access
'obj->u.value' instead of 'obj->value'. But since the
conversion touches a number of files, it is easiest if we
temporarily support BOTH layouts simultaneously.
Given a simple union qapi type:
{ 'union':'Foo', 'data': { 'a':'int', 'b':'bool' } }
make the following changes in generated qapi-types.h:
| struct Foo {
|- FooKind kind;
|- union { /* union tag is @kind */
|+ union {
|+ FooKind kind;
|+ FooKind type;
|+ };
|+ union { /* union tag is @type */
| void *data;
| int64_t a;
| bool b;
|+ union { /* union tag is @type */
|+ void *data;
|+ int64_t a;
|+ bool b;
|+ } u;
| };
| };
Flat unions do not need the anonymous union for the tag member,
as we already fixed that to use the member name instead of 'kind'
back in commit
0f61af3e.
One additional change is needed in qapi.py: check_union() now
needs to check for collisions with 'type' in addition to those
with 'kind'.
Later, when the conversions are complete, we will remove the
duplication hacks, and also drop the check_union() restrictions.
Note, however, that we do not rename the generated enum, which
is still 'FooKind'. A further patch could generate implicit
enums as 'FooType', but while the generator already reserved
the '*Kind' namespace (commit
4dc2e69), there are already QMP
constructs with '*Type' naming, which means changing our
reservation namespace would have lots of churn to C code to
deal with a forced name change.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-13-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:50 +0000 (16:34 -0600)]
qapi-visit: Remove redundant functions for flat union base
The code for visiting the base class of a child struct created
visit_type_Base_fields() which covers all fields of Base; while
the code for visiting the base class of a flat union created
visit_type_Union_fields() covering all fields of the base
except the discriminator. But since the base class includes
the discriminator of a flat union, we can just visit the entire
base, without needing a separate visit of the discriminator.
Not only is consistently visiting all fields easier to
understand, it lets us share code.
The generated code in qapi-visit.c loses several now-unused
visit_type_UNION_fields(), along with changes like:
|@@ -1654,11 +1557,7 @@ void visit_type_BlockdevOptions(Visitor
| if (!*obj) {
| goto out_obj;
| }
|- visit_type_BlockdevOptions_fields(v, obj, &err);
|- if (err) {
|- goto out_obj;
|- }
|- visit_type_BlockdevDriver(v, &(*obj)->driver, "driver", &err);
|+ visit_type_BlockdevOptionsBase_fields(v, (BlockdevOptionsBase **)obj, &err);
| if (err) {
| goto out_obj;
| }
and forward declarations where needed. Note that the cast of obj
to BASE ** is necessary to call visit_type_BASE_fields() (and we
can't use our upcast wrappers, because those work on pointers while
we have a pointer-to-pointer).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-12-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:49 +0000 (16:34 -0600)]
qapi: Unbox base members
Rather than storing a base class as a pointer to a box, just
store the fields of that base class in the same order, so that
a child struct can be directly cast to its parent. This gives
less malloc overhead, less pointer dereferencing, and even less
generated code. Compare to the earlier commit
1e6c1616a "qapi:
Generate a nicer struct for flat unions" (although that patch
had fewer places to change, as less of qemu was directly using
qapi structs for flat unions). It also allows us to turn on
automatic type-safe wrappers for upcasting to the base class
of a struct.
Changes to the generated code look like this in qapi-types.h:
| struct SpiceChannel {
|- SpiceBasicInfo *base;
|+ /* Members inherited from SpiceBasicInfo: */
|+ char *host;
|+ char *port;
|+ NetworkAddressFamily family;
|+ /* Own members: */
| int64_t connection_id;
as well as additional upcast functions like qapi_SpiceChannel_base().
Meanwhile, changes to qapi-visit.c look like:
| static void visit_type_SpiceChannel_fields(Visitor *v, SpiceChannel **obj, Error **errp)
| {
| Error *err = NULL;
|
|- visit_type_implicit_SpiceBasicInfo(v, &(*obj)->base, &err);
|+ visit_type_SpiceBasicInfo_fields(v, (SpiceBasicInfo **)obj, &err);
| if (err) {
(the cast is necessary, since our upcast wrappers only deal with a
single pointer, not pointer-to-pointer); plus the wholesale
elimination of some now-unused visit_type_implicit_FOO() functions.
Without boxing, the corner case of one empty struct having
another empty struct as its base type now requires inserting a
dummy member (previously, the 'Base *base' member sufficed).
And now that we no longer consume a 'base' member in the generated
C struct, we can delete the former negative struct-base-clash-base
test.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-11-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:48 +0000 (16:34 -0600)]
qapi: Prefer typesafe upcasts to qapi base classes
A previous patch (commit
1e6c1616) made it possible to
directly cast from a qapi flat union type to its base type.
However, it requires the use of a C cast, which turns off
compiler type-safety checks. Fortunately, no such casts
exist, just yet.
Regardless, add inline type-safe wrappers named
qapi_FOO_base() for any union type FOO that has a base,
which can be used for a safer upcast, and enhance the
testsuite to cover the new functionality.
A future patch will extend the upcast support to structs,
where such conversions do exist already.
Note that C makes const-correct upcasts annoying because
it lacks overloads; these functions cast away const so that
they can accept user pointers whether const or not, and the
result in turn can be assigned to normal or const pointers.
Alternatively, this could have been done with macros, but
type-safe macros are hairy, and not worthwhile here.
This patch just adds upcasts. None of our code needed to
downcast from a base qapi class to a child. Also, in the
case of grandchildren (such as BlockdevOptionsQcow2), the
caller will need to call two functions to get to the inner
base (although it wouldn't be too hard to generate a
qapi_FOO_base_base() if desired). If a user changes qapi
to alter the base class hierarchy, such as going from
'A -> C' to 'A -> B -> C', it will change the type of
'qapi_C_base()', and the compiler will point out the places
that are affected by the new base.
One alternative was proposed, but was deemed too ugly to use
in practice: the generators could output redundant
information using anonymous types:
| struct Child {
| union {
| struct {
| Type1 parent_member1;
| Type2 parent_member2;
| };
| Parent base;
| };
| };
With that ugly proposal, for a given qapi type, obj->member
and obj->base.member would refer to the same storage; allowing
convenience in working with members without needing 'base.'
allowing typesafe upcast without needing a C cast by accessing
'&obj->base', and allowing downcasts from the parent back to
the child possible through container_of(obj, Child, base).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-10-git-send-email-eblake@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:47 +0000 (16:34 -0600)]
qapi-types: Refactor base fields output
Move code from gen_union() into gen_struct_fields() in order for
a later patch to share code when enumerating inherited fields
for struct types.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-9-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:46 +0000 (16:34 -0600)]
qapi-visit: Split off visit_type_FOO_fields forward decl
We generate a static visit_type_FOO_fields() for every type
FOO. However, sometimes we need a forward declaration. Split
the code to generate the forward declaration out of
gen_visit_implicit_struct() into a new gen_visit_fields_decl(),
and also prepare for a forward declaration to be emitted
during gen_visit_struct(), so that a future patch can switch
from using visit_type_FOO_implicit() to the simpler
visit_type_FOO_fields() as part of unboxing the base class
of a struct.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:45 +0000 (16:34 -0600)]
vnc: Hoist allocation of VncBasicInfo to callers
A future qapi patch will rework generated structs with a base
class to be unboxed. In preparation for that, change the code
that allocates then populates an info struct to instead merely
populate the fields of an info field passed in as a parameter
(renaming vnc_basic_info_get* to vnc_init_basic_info*). Add
rudimentary Error handling at the lowest levels for cases
where the old code returned NULL; but rather than plumb Error
all the way through the stack, the callers drop the error and
return NULL as before.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-7-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:44 +0000 (16:34 -0600)]
qapi: Reserve 'q_*' and 'has_*' member names
c_name() produces names starting with 'q_' when protecting a
dictionary member name that would fail to directly compile, but
in doing so can cause clashes with any member name already
beginning with 'q-' or 'q_'. Likewise, we create a C name 'has_'
for any optional member that can clash with any member name
beginning with 'has-' or 'has_'.
Technically, rather than blindly reserving the namespace,
we could try to complain about user names only when an actual
collision occurs, or even teach c_name() how to munge names
to avoid collisions. But it is not trivial, especially when
collisions can occur across multiple types (such as via
inheritance or flat unions). Besides, no existing .json
files are trying to use these names. So it's easier to just
outright forbid the potential for collision. We can always
relax things in the future if a real need arises for QMP to
express member names that have been forbidden here.
'has_' only has to be reserved for struct/union member names,
while 'q_' is reserved everywhere (matching the fact that
only members can be optional, while we use c_name() for munging
both members and entities). Note that we could relax 'q_'
restrictions on entities independently from member names; for
example, c_name('qmp_' + 'unix') would result in a different
function name than our current 'qmp_' + c_name('unix').
Update and add tests to cover the new error messages.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-6-git-send-email-eblake@redhat.com>
[Consistently pass protect=False to c_name(); commit message tweaked
slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:43 +0000 (16:34 -0600)]
qapi: Reserve '*List' type names for list types
Type names ending in 'List' can clash with qapi list types in
generated C. We don't currently use such names. It is easier to
outlaw them now than to worry about how to resolve such a clash
in the future. For precedence, see commit
4dc2e69, which did the
same for names ending in 'Kind' versus implicit enum types for
qapi unions.
Update the testsuite to match.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-5-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:42 +0000 (16:34 -0600)]
qapi: More robust conditions for when labels are needed
We were using regular expressions to see if ret included
any earlier text that emitted a 'goto out;' line, to decide
whether we needed to output an 'out:' label. But this is
fragile, if the ret text can possibly combine more than one
generated function body, where the first function used a
goto but the second does not. Change the code to just check
for the known conditions which cause an error check to be
needed. Besides, it's slightly more efficient to use plain
checks than regular expression searching.
No change to generated code.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-4-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:41 +0000 (16:34 -0600)]
qapi: More idiomatic string operations
Rather than slicing the end of a string, we can use python's
endswith(). And rather than creating a set of characters,
we can search for a character within a string.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Mon, 26 Oct 2015 22:34:40 +0000 (16:34 -0600)]
tests/qapi-schema: Test for reserved names, empty struct
Add some testsuite coverage to ensure future patches are on
the right track:
Our current C representation of qapi arrays is done by appending
'List' to the element name; but we are not preventing the
creation of an object type with the same name. Add
reserved-type-list.json to test this. Then rename
enum-union-clash.json to reserved-type-kind.json to cover the
reservation that we DO detect, and shorten it to match the fact
that the name is reserved even if there is no clash.
We are failing to detect a collision between a dictionary member
and the implicit 'has_*' flag for another optional member. The
easiest fix would be for a future patch to reserve the entire
"has[-_]" namespace for member names (the collision is also
possible for branch names within flat unions, but only as long as
branch names can collide with (non-variant) members; however,
since future patches are about to remove that, it is not worth
testing here). Add reserved-member-has.json to test this.
A similar collision exists between a dictionary member where
c_name() munges what might otherwise be a reserved name to start
with 'q_', and another member explicitly starts with "q[-_]".
Again, the easiest solution for a future patch will be reserving
the entire namespace, but here for commands as well as members.
Add reserved-member-q.json and reserved-command-q.json to test
this; separate tests since arguably our munging of command 'unix'
to 'qmp_q_unix()' could be done without a q_, which is different
than the munging of a member 'unix' to 'foo.q_unix'.
Finally, our testsuite does not have any compilation coverage
of struct inheritance with empty qapi structs. Update
qapi-schema-test.json to test this.
Note that there is currently no technical reason to forbid type
name patterns from member names, or member name patterns from
types, since the two are not in the same namespace in C and
won't collide; but it's not worth adding positive tests of these
corner cases at this time, especially while there is other churn
pending in patches that rearrange which collisions actually
happen.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1445898903-12082-2-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Daniel P. Berrange [Thu, 22 Oct 2015 10:25:43 +0000 (11:25 +0100)]
qapi-schema: mark InetSocketAddress as mandatory again
Revert the qapi-schema.json change done in:
commit
0983f5e6af76d5df8c6346cbdfff9d8305fb6da0
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Tue Sep 1 14:46:50 2015 +0100
sockets: allow port to be NULL when listening on IP address
Switching "port" from mandatory to optional causes the QAPI
code generator to add a 'has_port' field to the InetSocketAddress
struct. No code that created InetSocketAddress objects was updated
to set 'has_port = true', which caused the non-NULL port strings
to be silently dropped when copying InetSocketAddress objects.
Reported-by: Knut Omang <knuto@ifi.uio.no>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <
1445509543-30679-1-git-send-email-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Peter Maydell [Fri, 30 Oct 2015 21:59:48 +0000 (21:59 +0000)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tile-
20151030' into staging
Prefetch in y2 pipe
# gpg: Signature made Fri 30 Oct 2015 20:40:02 GMT using RSA key ID
4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
* remotes/rth/tags/pull-tile-
20151030:
target-tilegx: Implement prefetch instructions in pipe y2
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 30 Oct 2015 19:47:47 +0000 (19:47 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Thu 29 Oct 2015 18:09:16 GMT using RSA key ID
81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
block: Consider all child nodes in bdrv_requests_pending()
target-arm: xlnx-zynqmp: Add sdhci support.
sdhci: Split sdhci.h for public and internal device usage
sd.h: Move sd.h to include/hw/sd/
virtio: sync the dataplane vring state to the virtqueue before virtio_save
gdb command: qemu handlers
virtio-blk: switch off scsi-passthrough by default
ppc/spapr: add 2.4 compat props
s390x: include HW_COMPAT_* props
qemu-gdb: add $qemu_coroutine_sp and $qemu_coroutine_pc
qemu-gdb: extract parts of "qemu coroutine" implementation
qemu-gdb: allow using glibc_pointer_guard() on core dumps
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 30 Oct 2015 16:30:25 +0000 (16:30 +0000)]
Merge remote-tracking branch 'remotes/lalrae/tags/mips-
20151030' into staging
MIPS patches 2015-10-30
Changes:
* R6 CPU can be woken up by non-enabled interrupts
* PC fix in KVM
* Coprocessor 0 XContext calculation fix
* various MIPS R6 updates
# gpg: Signature made Fri 30 Oct 2015 14:51:56 GMT using RSA key ID
0B29DA6B
# gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>"
* remotes/lalrae/tags/mips-
20151030:
target-mips: fix updating XContext on mmu exception
target-mips: add SIGRIE instruction
target-mips: Set Config5.XNP for R6 cores
target-mips: add PC, XNP reg numbers to RDHWR
hw/mips_malta: Fix KVM PC initialisation
target-mips: Add enum for BREAK32
target-mips: update writing to CP0.Status.KX/SX/UX in MIPS Release R6
target-mips: implement the CPU wake-up on non-enabled interrupts in R6
target-mips: move the test for enabled interrupts to a separate function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Yongbok Kim [Thu, 29 Oct 2015 17:17:52 +0000 (17:17 +0000)]
target-mips: fix updating XContext on mmu exception
Correct updating XContext.Region field on mmu exceptions.
If Config3.CTXTC = 0 then the R field of XContext has to be updated
with the value of bits 63..62 of the virtual address upon a TLB
exception.
Also fixed the below line which overs 80 characters.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Yongbok Kim [Thu, 29 Oct 2015 15:18:38 +0000 (15:18 +0000)]
target-mips: add SIGRIE instruction
Add SIGRIE (Signal Reserved Instruction Exception) for both MIPS and
microMIPS.
The instruction allows to use the 16-bit code field for software use.
This instruction is introduced by and required as of Release 6.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Yongbok Kim [Mon, 5 Oct 2015 13:45:45 +0000 (14:45 +0100)]
target-mips: Set Config5.XNP for R6 cores
Set Config5.XNP for R6 cores to indicate the extended LL/SC family
of instructions NOT present.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Yongbok Kim [Thu, 29 Oct 2015 15:18:39 +0000 (15:18 +0000)]
target-mips: add PC, XNP reg numbers to RDHWR
Add Performance Counter (4) and XNP (5) register numbers to RDHWR.
Add check_hwrena() to simplify access control checkings.
Add RDHWR support to microMIPS R6.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
James Hogan [Mon, 12 Oct 2015 16:54:39 +0000 (17:54 +0100)]
hw/mips_malta: Fix KVM PC initialisation
Commit
71c199c81d29 ("mips_malta: provide ememsize env variable to
kernels") changed the meaning of loaderparams.ram_size to be the whole
of RAM rather than just the low part below where the boot code is placed
for KVM, but it didn't update the PC initialisation for KVM to use
ram_low_size. Fix that now.
Fixes:
71c199c81d29 ("mips_malta: provide ememsize env variable to kernels")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Peter Maydell [Fri, 30 Oct 2015 09:41:14 +0000 (09:41 +0000)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2015-10-30' into staging
QMP and QObject patches
# gpg: Signature made Fri 30 Oct 2015 08:06:26 GMT using RSA key ID
EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
* remotes/armbru/tags/pull-monitor-2015-10-30:
docs: Document QMP event rate limiting
monitor: Throttle event VSERPORT_CHANGE separately by "id"
monitor: Turn monitor_qapi_event_state[] into a hash table
glib: add compatibility interface for g_hash_table_add()
monitor: Split MonitorQAPIEventConf off MonitorQAPIEventState
monitor: Switch from timer_new() to timer_new_ns()
monitor: Simplify event throttling
monitor: Reduce casting of QAPI event QDict
qstring: Make conversion from QObject * accept null
qlist: Make conversion from QObject * accept null
qfloat qint: Make conversion from QObject * accept null
qdict: Make conversion from QObject * accept null
qbool: Make conversion from QObject * accept null
qobject: Drop QObject_HEAD
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Markus Armbruster [Thu, 15 Oct 2015 15:08:36 +0000 (17:08 +0200)]
docs: Document QMP event rate limiting
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
1444921716-9511-8-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>