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Cao jin [Wed, 6 Jul 2016 10:08:59 +0000 (18:08 +0800)]
main-loop: check return value before using pointer
pointer 'qemu_aio_context' should be checked first before it is used.
qemu_bh_new() will use it.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Message-Id: <
1467799740-26079-2-git-send-email-caoj.fnst@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sean Bruno [Tue, 14 Jun 2016 18:07:34 +0000 (11:07 -0700)]
Use "-s" instead of "--quiet" to resolve non-fatal build error on FreeBSD.
The --quiet argument is not available on all operating systems. Use -s
instead to match the rest of the Makefile uses. This fixes a non-fatal
error seen on FreeBSD.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Sean Bruno <sbruno@freebsd.org>
Message-Id: <
20160614180734.8782-1-sbruno@freebsd.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jarkko Lavinen [Wed, 29 Jun 2016 00:11:46 +0000 (03:11 +0300)]
scsi-bus: Use longer sense buffer with scanners
Scanners can provide additional sense bytes beyond 18 bytes.
VueScan uses 32 bytes alloc length with Request Sense command.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@iki.fi>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jarkko Lavinen [Tue, 28 Jun 2016 18:51:52 +0000 (21:51 +0300)]
scsi-bus: Add SCSI scanner support
Add support for missing scanner specific SCSI commands and their xfer
lenghts as per ANSI spec section 15.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@iki.fi>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Mon, 11 Jul 2016 14:08:47 +0000 (15:08 +0100)]
Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging
x86 and machine queue, 2016-07-07
Highlights:
* Improvements on global property error handling
* Translate -cpu options to global properties
* LMCE support
# gpg: Signature made Thu 07 Jul 2016 20:59:01 BST
# gpg: using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-pull-request:
target-i386: Enable LMCE for '-cpu host' if supported by host
target-i386: Publish advised value of MSR_IA32_FEATURE_CONTROL via fw_cfg
target-i386: kvm: Add basic Intel LMCE support
target-i386: Report hyperv feature words through qom
target-i386: Show host and VM TSC frequencies on mismatch
pc: Parse CPU features only once
arm: virt: Parse cpu_model only once
cpu: Use CPUClass->parse_features() as convertor to global properties
target-i386: Avoid using locals outside their scope
target-i386: TCG can support CPUID.07H:EBX.erms
target-sparc: Use sparc_cpu_parse_features() directly
vl: Set errp to &error_abort on machine compat_props
machine: Add machine_register_compat_props() function
qdev: GlobalProperty.errp field
qdev: Eliminate qemu_add_globals() function
qdev: Don't stop applying globals on first error
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 11 Jul 2016 13:10:09 +0000 (14:10 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-rth-
20160710' into staging
build fix for travis
# gpg: Signature made Sun 10 Jul 2016 18:07:02 BST
# gpg: using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B
* remotes/rth/tags/pull-rth-
20160710:
build: Use $(AS) for optionrom explicitly
linux-user: Fix i386 safe-syscall.S
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Gerd Hoffmann [Thu, 7 Jul 2016 07:29:23 +0000 (09:29 +0200)]
gtk: fix build
Commit "
9d8256e virgl: pass whole GL scanout dimensions" missed the
opengl code path for gtk versions >= 3.16. Update that one too and
fix the build with recent gtk versions.
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1467876563-1351-1-git-send-email-kraxel@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 8 Jul 2016 04:49:36 +0000 (21:49 -0700)]
build: Use $(AS) for optionrom explicitly
For clang before 3.5, -fno-integrated-as does not exist,
so the workaround in
5f6f0e27fb24 fails to build.
Use clang's default assembler for linux-user/safe-syscall.S,
and explicitly change to use the system assembler for the
option roms.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Fri, 8 Jul 2016 04:39:22 +0000 (21:39 -0700)]
linux-user: Fix i386 safe-syscall.S
Clang insists that "cmp" is ambiguous with a memory destination,
requiring an explicit size suffix.
There was a true error in the use of .cfi_def_cfa_offset in the
epilogue, but changing to use the proper .cfi_adjust_cfa_offset
runs afoul of a clang bug wrt .cfi_restore_state. Better to
fold the two epilogues so that we don't trigger the bug.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Haozhong Zhang [Wed, 22 Jun 2016 06:56:23 +0000 (14:56 +0800)]
target-i386: Enable LMCE for '-cpu host' if supported by host
If -cpu host is used, LMCE will be automatically enabled when it's
supported by host.
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Haozhong Zhang [Thu, 23 Jun 2016 06:15:43 +0000 (14:15 +0800)]
target-i386: Publish advised value of MSR_IA32_FEATURE_CONTROL via fw_cfg
It's a prerequisite that certain bits of MSR_IA32_FEATURE_CONTROL should
be set before some features (e.g. VMX and LMCE) can be used, which is
usually done by the firmware. This patch adds a fw_cfg file
"etc/msr_feature_control" which contains the advised value of
MSR_IA32_FEATURE_CONTROL and can be used by guest firmware (e.g. SeaBIOS).
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Ashok Raj [Wed, 22 Jun 2016 06:56:21 +0000 (14:56 +0800)]
target-i386: kvm: Add basic Intel LMCE support
This patch adds the support to inject SRAR and SRAO as LMCE, i.e. they
are injected to only one VCPU rather than broadcast to all VCPUs. As KVM
reports LMCE support on Intel platforms, this features is only available
on Intel platforms.
LMCE is disabled by default and can be enabled/disabled by cpu option
'lmce=on/off'.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
[Haozhong: Enable LMCE only on Intel platforms
Disable LMCE by default and add a cpu option 'lmce'
Handle the error if LMCE is enabled w/o host support
Remove MCG_LMCE_P from MCE_CAP_DEF
Add migration support for LMCE
Minor code style changes]
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Evgeny Yakovlev [Fri, 24 Jun 2016 10:49:36 +0000 (13:49 +0300)]
target-i386: Report hyperv feature words through qom
This change adds hyperv feature words report through qom rpc.
When VM is configured with hyperv features enabled
libvirt will check that required feature words are set
in cpuid leaf
40000003 through qom request.
Currently qemu does not report hyperv feature words
which prevents windows guests from starting with libvirt.
To avoid conflicting with current hyperv properties all added feature
words cannot be set directly with -cpu +feature yet.
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Thu, 30 Jun 2016 18:12:17 +0000 (15:12 -0300)]
target-i386: Show host and VM TSC frequencies on mismatch
Improve the TSC frequency mismatch warning to show the host and
VM TSC frequencies.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Thu, 9 Jun 2016 17:11:03 +0000 (19:11 +0200)]
pc: Parse CPU features only once
Considering that features are converted to global properties and
global properties are automatically applied to every new instance
of created CPU (at object_new() time), there is no point in
parsing cpu_model string every time a CPU created. So move
parsing outside CPU creation loop and do it only once.
Parsing also should be done before any CPU is created so that
features would affect the first CPU a well.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Thu, 9 Jun 2016 17:11:02 +0000 (19:11 +0200)]
arm: virt: Parse cpu_model only once
Considering that features are converted to global properties and
global properties are automatically applied to every new instance
of created CPU (at object_new() time), there is no point in
parsing cpu_model string every time a CPU created. So move
parsing outside CPU creation loop and do it only once.
Parsing also should be done before any CPU is created so that
features would affect the first CPU a well.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Thu, 9 Jun 2016 17:11:01 +0000 (19:11 +0200)]
cpu: Use CPUClass->parse_features() as convertor to global properties
Currently CPUClass->parse_features() is used to parse -cpu
features string and set properties on created CPU instances.
But considering that features specified by -cpu apply to every
created CPU instance, it doesn't make sense to parse the same
features string for every CPU created. It also makes every target
that cares about parsing features string explicitly call
CPUClass->parse_features() parser, which gets in a way if we
consider using generic device_add for CPU hotplug as device_add
has not a clue about CPU specific hooks.
Turns out we can use global properties mechanism to set
properties on every created CPU instance for a given type. That
way it's possible to convert CPU features into a set of global
properties for CPU type specified by -cpu cpu_model and common
Device.device_post_init() will apply them to CPU of given type
automatically regardless whether it's manually created CPU or CPU
created with help of device_add.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Paolo Bonzini [Tue, 21 Jun 2016 12:04:40 +0000 (14:04 +0200)]
target-i386: Avoid using locals outside their scope
x86_cpu_parse_featurestr has a "val = num;" assignment just before num
goes out of scope. Push num up to fix the issue.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Paolo Bonzini [Fri, 17 Jun 2016 15:47:13 +0000 (17:47 +0200)]
target-i386: TCG can support CPUID.07H:EBX.erms
ERMS just says "rep movsb" and "rep stosb" are fast. It does not
imply any new instruction, so we can support it easily.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Igor Mammedov [Thu, 9 Jun 2016 17:11:00 +0000 (19:11 +0200)]
target-sparc: Use sparc_cpu_parse_features() directly
Make SPARC target use sparc_cpu_parse_features() directly
so it won't get in the way of switching other propertified
targets to handling features as global properties.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Wed, 15 Jun 2016 19:00:01 +0000 (16:00 -0300)]
vl: Set errp to &error_abort on machine compat_props
Use the new GlobalProperty.errp field to handle compat_props
errors.
Example output before this change:
(with an intentionally broken entry added to PC_COMPAT_1_3 just
for testing)
$ qemu-system-x86_64 -machine pc-1.3
qemu-system-x86_64: hw/core/qdev-properties.c:1091: qdev_prop_set_globals_for_type: Assertion `prop->user_provided' failed.
Aborted (core dumped)
After:
$ qemu-system-x86_64 -machine pc-1.3
Unexpected error in x86_cpuid_set_vendor() at /home/ehabkost/rh/proj/virt/qemu/target-i386/cpu.c:1688:
qemu-system-x86_64: can't apply global cpu.vendor=x: Property '.vendor' doesn't take value 'x'
Aborted (core dumped)
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Wed, 15 Jun 2016 19:41:19 +0000 (16:41 -0300)]
machine: Add machine_register_compat_props() function
Move the compat_props handling to core machine code.
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Wed, 15 Jun 2016 19:08:06 +0000 (16:08 -0300)]
qdev: GlobalProperty.errp field
The new field will allow error handling to be configured by
qdev_prop_register_global() callers: &error_fatal and
&error_abort can be used to make QEMU exit or abort if any errors
are reported when applying the properties.
While doing it, change the error message from "global %s.%s=%s
ignored" to "can't apply global %s.%s=%s".
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Wed, 15 Jun 2016 18:54:52 +0000 (15:54 -0300)]
qdev: Eliminate qemu_add_globals() function
The function is just a helper to handle the -global options, it
can stay in vl.c like most qemu_opts_foreach() calls.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Eduardo Habkost [Wed, 15 Jun 2016 17:59:46 +0000 (14:59 -0300)]
qdev: Don't stop applying globals on first error
qdev_prop_set_globals_for_type() stops applying global properties
on the first error. It is a leftover from when QEMU exited on any
error when applying global property. Commit
25f8dd9 changed the
fatal error to a warning, but neglected to drop the stopping.
Fix that.
For example, the following command-line will not set CPUID level
to 3, but will warn only about "x86_64-cpu.vendor" being ignored.
$ ./x86_64-softmmu/qemu-system-x86_64 \
-global x86_64-cpu.vendor=x \
-global x86_64-cpu.level=3
qemu-system-x86_64: Warning: global x86_64-cpu.vendor=x ignored: Property '.vendor' doesn't take value 'x'
Fix this by not returning from qdev_prop_set_globals_for_type()
on the first error.
Cc: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell [Thu, 7 Jul 2016 13:49:38 +0000 (14:49 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20160707' into staging
target-arm queue:
* fix a wrong variable type for A64 SYS_HEAPINFO semihosting call
* xlnx_dp: fix iffy xlnx_dp_aux_push_tx_fifo
* aux: fix break that wanted to break two levels out
* aux: Rename aux.[ch] to auxbus.[ch] for the benefit of Windows
* hw/block/m25p80: fix resource leak
* i.MX: split the GPT timer implementation into per SOC definitions
# gpg: Signature made Thu 07 Jul 2016 14:48:09 BST
# gpg: using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-
20160707:
i.MX: split the GPT timer implementation into per SOC definitions
hw/block/m25p80: fix resource leak
aux: Rename aux.[ch] to auxbus.[ch] for the benefit of Windows
aux: fix break that wanted to break two levels out
xlnx_dp: fix iffy xlnx_dp_aux_push_tx_fifo
target-arm/arm-semi.c: In SYS_HEAPINFO use correct type for 'limit'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jean-Christophe Dubois [Thu, 7 Jul 2016 12:47:01 +0000 (13:47 +0100)]
i.MX: split the GPT timer implementation into per SOC definitions
In various Freescale SOCs, the GPT timers can be configured to select
its input clock.
Depending on the SOC the set of available input clocks may vary.
The actual single GPT definition was no good enough and because of it
booting the sabrelite board with a i.MX6DL device tree would fail
because of an incorrect input clock definition for the i.MX6DL SOC.
This patch fixes the i.MX6DL boot failure by adding the ability to
define a different set of input clocks depending on the considered SOC.
A different class has been defined for i.MX25, i.MX31 and i.MX6 each with
its specific set of input clocks.
The patch has been tested by booting KZM, i.MX25 PDK, i.MX6Q sabrelite
and i.MX6DL sabrelite.
Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Message-id:
1467325619-8374-1-git-send-email-jcd@tribudubois.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed spacing round '/' operator]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Shannon Zhao [Thu, 7 Jul 2016 12:47:01 +0000 (13:47 +0100)]
hw/block/m25p80: fix resource leak
These two are spot by Coverity
1357232 and
1357233.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id:
1467684998-12076-1-git-send-email-zhaoshenglong@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 7 Jul 2016 12:47:01 +0000 (13:47 +0100)]
aux: Rename aux.[ch] to auxbus.[ch] for the benefit of Windows
On Windows 'aux.*' is a reserved name and cannot be used for
filenames; see
https://msdn.microsoft.com/en-gb/library/windows/desktop/
aa365247(v=vs.85).aspx
This prevents cloning the QEMU git repo on Windows:
C:\Java\sources\kvm> git clone https://github.com/qemu/qemu.git
Cloning into 'qemu'...
remote: Counting objects: 279563, done.
remote: Total 279563 (delta 0), reused 0 (delta 0), pack-reused 279563R
Receiving objects: 100% (279563/279563), 122.45 MiB | 3.52 MiB/s, done.
Resolving deltas: 100% (221942/221942), done.
Checking connectivity... done.
error: unable to create file hw/misc/aux.c (No such file or directory)
error: unable to create file include/hw/misc/aux.h (No such file or directory)
Checking out files: 100% (4795/4795), done.
fatal: unable to checkout working tree
warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry the checkout with 'git checkout -f HEAD'
(bug https://bugs.launchpad.net/bugs/
1595240)
Rename the offending files for the benefit of Windows.
Reported-by: Алексей Курган <akurgan@yandex.ru>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Wei Huang <wei@redhat.com>
Tested-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id:
1467377145-32385-1-git-send-email-peter.maydell@linaro.org
Paolo Bonzini [Thu, 7 Jul 2016 12:47:00 +0000 (13:47 +0100)]
aux: fix break that wanted to break two levels out
The last "ret = AUX_I2C_NACK;" is dead, because it is always overridden
by AUX_I2C_ACK. What really the code wants is to jump out of the switch
statement, and a "return" will not cut it because it would omit a debug
printf.
Change the logic so that we can break out of the while loop. For clarity,
hoist the bus->last_* assignments up, right after i2c_start_transfer.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Paolo Bonzini [Thu, 7 Jul 2016 12:47:00 +0000 (13:47 +0100)]
xlnx_dp: fix iffy xlnx_dp_aux_push_tx_fifo
xlnx_dp_aux_push_tx_fifo takes an immediate uint8_t and a buffer length,
which must be 1 because that is how many uint8_t's fit in a uint8_t.
Sure enough, that is what xlnx_dp_write passes to it, but the function
is just weird. Therefore, make xlnx_dp_aux_push_tx_fifo look like
xlnx_dp_aux_push_rx_fifo, taking a pointer to the buffer.
Reported by Coverity.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 7 Jul 2016 12:47:00 +0000 (13:47 +0100)]
target-arm/arm-semi.c: In SYS_HEAPINFO use correct type for 'limit'
In commit
f5666418c4 most of the SYS_HEAPINFO implementation was
fixed to use target_ulong rather than uint32_t, but the 'limit'
variable was not changed.
Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1467650942-28706-1-git-send-email-peter.maydell@linaro.org
Peter Maydell [Thu, 7 Jul 2016 09:29:05 +0000 (10:29 +0100)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Thu 07 Jul 2016 07:29:44 BST
# gpg: using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
tap: vhost busy polling support
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jason Wang [Wed, 6 Jul 2016 01:57:55 +0000 (09:57 +0800)]
tap: vhost busy polling support
This patch add the capability of basic vhost net busy polling which is
supported by recent kernel. User could configure the maximum number of
us that could be spent on busy polling through a new property of tap
"poll-us".
Cc: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Peter Maydell [Wed, 6 Jul 2016 16:32:09 +0000 (17:32 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-
20160706' into staging
misc updates
# gpg: Signature made Wed 06 Jul 2016 17:17:02 BST
# gpg: using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg: aka "Richard Henderson <rth@redhat.com>"
# gpg: aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B
* remotes/rth/tags/pull-tcg-
20160706:
tcg: Improve the alignment check infrastructure
tcg: Optimize spills of constants
tcg: Fix name for high-half register
build: Use $(CCAS) for compiling .S files
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 6 Jul 2016 11:49:51 +0000 (12:49 +0100)]
Merge remote-tracking branch 'remotes/spice/tags/pull-spice-
20160706-1' into staging
spice and qxl bugfixes.
# gpg: Signature made Wed 06 Jul 2016 10:44:10 BST
# gpg: using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/spice/tags/pull-spice-
20160706-1:
virgl: pass whole GL scanout dimensions
spice: use the right head for multi-monitor
virgl: count the calls to gl_block
spice: avoid .set_mm_time on >= 0.12.6
qxl: fix surface migration
qxl: store memory region and offset instead of pointer for guest slots
qxl: factor out qxl_get_check_slot_offset
qxl: handle no updates in interface_update_area_complete
qxl: use uint64_t for vram size
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 6 Jul 2016 10:38:09 +0000 (11:38 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-07-06' into staging
QAPI patches for 2016-07-06
# gpg: Signature made Wed 06 Jul 2016 10:00:51 BST
# gpg: using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* remotes/armbru/tags/pull-qapi-2016-07-06:
replay: Use new QAPI cloning
sockets: Use new QAPI cloning
qapi: Add new clone visitor
qapi: Add new visit_complete() function
tests: Factor out common code in qapi output tests
tests: Clean up test-string-output-visitor
qmp-output-visitor: Favor new visit_free() function
string-output-visitor: Favor new visit_free() function
qmp-input-visitor: Favor new visit_free() function
string-input-visitor: Favor new visit_free() function
opts-visitor: Favor new visit_free() function
qapi: Add new visit_free() function
qapi: Add parameter to visit_end_*
qemu-img: Don't leak errors when outputting JSON
qapi: Improve use of qmp/types.h
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 6 Jul 2016 09:23:25 +0000 (10:23 +0100)]
Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging
QOM infrastructure fixes and device conversions
* Documentation fix
# gpg: Signature made Wed 06 Jul 2016 08:26:49 BST
# gpg: using RSA key 0xFA2ED12D3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
# Primary key fingerprint: 174F 0347 1BCC 221A 6175 6F96 FA2E D12D 3E7E 013F
* remotes/afaerber/tags/qom-devices-for-peter:
qom: Fix comment typo
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eric Blake [Thu, 9 Jun 2016 16:48:46 +0000 (10:48 -0600)]
replay: Use new QAPI cloning
Rather than rolling our own clone via an expensive conversion
in and back out of QObject, use the new clone visitor.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-16-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:45 +0000 (10:48 -0600)]
sockets: Use new QAPI cloning
Rather than rolling our own clone via an expensive conversion
in and back out of QObject, use the new clone visitor.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-15-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:44 +0000 (10:48 -0600)]
qapi: Add new clone visitor
We have a couple places in the code base that want to deep-clone
one QAPI object into another, and they were resorting to serializing
the struct out to QObject then reparsing it. A much more efficient
version can be done by adding a new clone visitor.
Since cloning is still relatively uncommon, expose the use of the
new visitor via a QAPI_CLONE() macro that takes care of type-punning
the underlying function pointer, rather than generating lots of
unused functions for types that won't be cloned. And yes, we're
relying on the compiler treating all pointers equally, even though
a strict C program cannot portably do so - but we're not the first
one in the qemu code base to expect it to work (hello, glib!).
The choice of adding a fourth visitor type deserves some explanation.
On the surface, the clone visitor is mostly an input visitor (it
takes arbitrary input - in this case, another QAPI object - and
creates a new QAPI object during the course of the visit). But
ever since commit
da72ab0 consolidated enum visits based on the
visitor type, using VISITOR_INPUT would cause us to run
visit_type_str(), even though for cloning there is nothing to do
(we just copy the enum value across, without regards to its mapping
to strings). Also, since our input happens to be a QAPI object,
we can also satisfy the internal checks for VISITOR_OUTPUT. So in
the end, I settled with a new VISITOR_CLONE, and chose its value
such that many internal checks can use 'v->type & mask', sticking
to 'v->type == value' where the difference matters.
Note that we can only clone objects (including alternates) and lists,
not built-ins or enums. The visitor core hides integer width from
the actual visitor (since commit
04e070d), and as long as that's the
case, we can't clone top-level integers. Then again, those can
always be cloned by direct copy, since they are not objects with
deep pointers, so it's no real loss. And restricting cloning to
just objects and lists is cleaner than restricting it to non-integers.
As such, I documented that the clone visitor is for direct use only
by code internal to QAPI, and should not be used on incomplete objects
(other than a hack to work around the fact that we allow NULL in place
of "" in visit_type_str() in other output visitors). Note that as
written, the clone visitor will never fail on a complete object.
Scalars (including enums) not at the root of the clone copy just fine
with no additional effort while visiting the scalar, by virtue of a
g_memdup() each time we push another struct onto the stack. Cloning
a string requires deduplication of a pointer, which means it can also
provide the guarantee of an input visitor of never producing NULL
even when still accepting NULL in place of "" the way the QMP output
visitor does.
Cloning an 'any' type could be possible by incrementing the QObject
refcnt, but it's not obvious whether that is better than implementing
a QObject deep clone. So for now, we document it as unsupported,
and intentionally omit the .type_any() callback to let a developer
know their usage needs implementation.
Add testsuite coverage for several different clone situations, to
ensure that the code is working. I also tested that valgrind was
happy with the test.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-14-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:43 +0000 (10:48 -0600)]
qapi: Add new visit_complete() function
Making each output visitor provide its own output collection
function was the only remaining reason for exposing visitor
sub-types to the rest of the code base. Add a polymorphic
visit_complete() function which is a no-op for input visitors,
and which populates an opaque pointer for output visitors. For
maximum type-safety, also add a parameter to the output visitor
constructors with a type-correct version of the output pointer,
and assert that the two uses match.
This approach was considered superior to either passing the
output parameter only during construction (action at a distance
during visit_free() feels awkward) or only during visit_complete()
(defeating type safety makes it easier to use incorrectly).
Most callers were function-local, and therefore a mechanical
conversion; the testsuite was a bit trickier, but the previous
cleanup patch minimized the churn here.
The visit_complete() function may be called at most once; doing
so lets us use transfer semantics rather than duplication or
ref-count semantics to get the just-built output back to the
caller, even though it means our behavior is not idempotent.
Generated code is simplified as follows for events:
|@@ -26,7 +26,7 @@ void qapi_event_send_acpi_device_ost(ACP
| QDict *qmp;
| Error *err = NULL;
| QMPEventFuncEmit emit;
|- QmpOutputVisitor *qov;
|+ QObject *obj;
| Visitor *v;
| q_obj_ACPI_DEVICE_OST_arg param = {
| info
|@@ -39,8 +39,7 @@ void qapi_event_send_acpi_device_ost(ACP
|
| qmp = qmp_event_build_dict("ACPI_DEVICE_OST");
|
|- qov = qmp_output_visitor_new();
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(&obj);
|
| visit_start_struct(v, "ACPI_DEVICE_OST", NULL, 0, &err);
| if (err) {
|@@ -55,7 +54,8 @@ void qapi_event_send_acpi_device_ost(ACP
| goto out;
| }
|
|- qdict_put_obj(qmp, "data", qmp_output_get_qobject(qov));
|+ visit_complete(v, &obj);
|+ qdict_put_obj(qmp, "data", obj);
| emit(QAPI_EVENT_ACPI_DEVICE_OST, qmp, &err);
and for commands:
| {
| Error *err = NULL;
|- QmpOutputVisitor *qov = qmp_output_visitor_new();
| Visitor *v;
|
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(ret_out);
| visit_type_AddfdInfo(v, "unused", &ret_in, &err);
|- if (err) {
|- goto out;
|+ if (!err) {
|+ visit_complete(v, ret_out);
| }
|- *ret_out = qmp_output_get_qobject(qov);
|-
|-out:
| error_propagate(errp, err);
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-13-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:42 +0000 (10:48 -0600)]
tests: Factor out common code in qapi output tests
Create a new visitor_get() function to capture common
actions taken in collecting output from an output visitor,
to make it easier to refactor the output visitors in a
later patch.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-12-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:41 +0000 (10:48 -0600)]
tests: Clean up test-string-output-visitor
Use &error_abort and error_free_or_abort() in more places, use
the generated qapi_free_intList() instead of open-coding it,
reduce the scope of some variables, avoid code duplication
during test setup with visitor_output_setup_internal(), and
copy the visitor_reset() concept from the qmp-output test to
the string-output test.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-11-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:40 +0000 (10:48 -0600)]
qmp-output-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
qmp_output_visitor_cleanup(); however, we still need to
expose the subtype for qmp_output_get_qobject().
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-10-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:39 +0000 (10:48 -0600)]
string-output-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
string_output_visitor_cleanup(); however, we still need to
expose the subtype for string_output_get_string().
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-9-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:38 +0000 (10:48 -0600)]
qmp-input-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
qmp_input_visitor_cleanup(); which in turn means we no longer
need to return a subtype from qmp_input_visitor_new() nor a
public upcast function.
Generated code changes to qmp-marshal.c look like:
|@@ -52,11 +52,10 @@ void qmp_marshal_add_fd(QDict *args, QOb
| {
| Error *err = NULL;
| AddfdInfo *retval;
|- QmpInputVisitor *qiv = qmp_input_visitor_new(QOBJECT(args), true);
| Visitor *v;
| q_obj_add_fd_arg arg = {0};
|
|- v = qmp_input_get_visitor(qiv);
|+ v = qmp_input_visitor_new(QOBJECT(args), true);
| visit_start_struct(v, NULL, NULL, 0, &err);
| if (err) {
| goto out;
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-8-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:37 +0000 (10:48 -0600)]
string-input-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
string_input_visitor_cleanup(); which in turn means we no longer
need to return a subtype from string_input_visitor_new() nor a
public upcast function.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-7-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:36 +0000 (10:48 -0600)]
opts-visitor: Favor new visit_free() function
Now that we have a polymorphic visit_free(), we no longer need
opts_visitor_cleanup(); which in turn means we no longer need
to return a subtype from opts_visitor_new() nor a public upcast
function.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-6-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:35 +0000 (10:48 -0600)]
qapi: Add new visit_free() function
Making each visitor provide its own (awkwardly-named) FOO_cleanup()
is unusual, when we can instead have a polymorphic visit_free()
interface. Over the next few patches, we can use the polymorphic
functions to eliminate the need for a FOO_get_visitor() function
for accessing specific visitor functionality, once everything can
be accessed directly through the Visitor* interfaces.
The dealloc visitor is the first one converted to completely use
the new entry point, since qapi_dealloc_visitor_cleanup() was the
only reason that qapi_dealloc_get_visitor() existed, and only
generated and testsuite code was even using it. With the new
visit_free() entry point in place, we no longer need to expose
the QapiDeallocVisitor subtype through qapi_dealloc_visitor_new(),
and can get by with less generated code, with diffs that look like:
| void qapi_free_ACPIOSTInfo(ACPIOSTInfo *obj)
| {
|- QapiDeallocVisitor *qdv;
| Visitor *v;
|
| if (!obj) {
| return;
| }
|
|- qdv = qapi_dealloc_visitor_new();
|- v = qapi_dealloc_get_visitor(qdv);
|+ v = qapi_dealloc_visitor_new();
| visit_type_ACPIOSTInfo(v, NULL, &obj, NULL);
|- qapi_dealloc_visitor_cleanup(qdv);
|+ visit_free(v);
|}
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-5-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:34 +0000 (10:48 -0600)]
qapi: Add parameter to visit_end_*
Rather than making the dealloc visitor track of stack of pointers
remembered during visit_start_* in order to free them during
visit_end_*, it's a lot easier to just make all callers pass the
same pointer to visit_end_*. The generated code has access to the
same pointer, while all other users are doing virtual walks and
can pass NULL. The dealloc visitor is then greatly simplified.
All three visit_end_*() functions intentionally take a void**,
even though the visit_start_*() functions differ between void**,
GenericList**, and GenericAlternate**. This is done for several
reasons: when doing a virtual walk, passing NULL doesn't care
what the type is, but when doing a generated walk, we already
have to cast the caller's specific FOO* to call visit_start,
while using void** lets us use visit_end without a cast. Also,
an upcoming patch will add a clone visitor that wants to use
the same implementation for all three visit_end callbacks,
which is made easier if all three share the same signature.
For visitors with already track per-object state (the QMP visitors
via a stack, and the string visitors which do not allow nesting),
add an assertion that the caller is indeed passing the same
pointer to paired calls.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-4-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:33 +0000 (10:48 -0600)]
qemu-img: Don't leak errors when outputting JSON
If our JSON output ever encounters an error, we would just silently
leak the error object. Instead, assert that our usage won't fail.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-3-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Eric Blake [Thu, 9 Jun 2016 16:48:32 +0000 (10:48 -0600)]
qapi: Improve use of qmp/types.h
'qjson.h' is not a QObject subtype; include this file directly in
.c files that are using it, rather than abusing qmp/types.h for
that purpose.
Meanwhile, for files that include a list of individual QObject
subtypes, it's easier to just use qmp/types.h for that purpose.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <
1465490926-28625-2-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Marc-André Lureau [Tue, 14 Jun 2016 13:44:09 +0000 (15:44 +0200)]
virgl: pass whole GL scanout dimensions
Spice client needs the whole GL texture dimension to be able to show a
scanout with a monitor offset (different than +0+0).
Furthermore, this fixes a crash when calling surface_{width,height}()
after dpy_gfx_replace_surface(con, NULL) was called in
virgl_cmd_set_scanout()
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id:
1465911849-30423-4-git-send-email-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Marc-André Lureau [Tue, 14 Jun 2016 13:44:08 +0000 (15:44 +0200)]
spice: use the right head for multi-monitor
Look up the associated head monitor config.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id:
1465911849-30423-3-git-send-email-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Marc-André Lureau [Tue, 14 Jun 2016 13:44:07 +0000 (15:44 +0200)]
virgl: count the calls to gl_block
In virgl_cmd_resource_flush(), when several consoles are updated, it
needs to keep blocking until all spice gl draws are done. This fixes an
assert() in spice when using multiple monitors with virgl.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id:
1465911849-30423-2-git-send-email-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
John Snow [Wed, 29 Jun 2016 22:41:35 +0000 (18:41 -0400)]
spice: avoid .set_mm_time on >= 0.12.6
Spice deprecated this callback in 0.12.6.
It's not a problem yet, but it will cause Clang to fail in a -Werror
build due to the deprecated tag.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id:
1467240095-12507-2-git-send-email-jsnow@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Wed, 22 Jun 2016 12:07:24 +0000 (14:07 +0200)]
qxl: fix surface migration
Create a helper function qxl_dirty_one_surface() to mark a single qxl
surface as dirty. Use the new qxl_get_check_slot_offset function and
lookup the memory region from the slot instead of assuming the surface
is stored in vram.
Use the new helper function in qxl_dirty_surfaces, for both primary and
off-screen surfaces. For off-screen surfaces this is no functional
change. For primary surfaces this will dirty only the memory actually
used instead of the whole surface0 region. It will also work correctly
in case the guest places the primary surface in vram instead of the
surface0 region (linux kms driver does that).
https://bugzilla.redhat.com/show_bug.cgi?id=
1235732
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1466597244-5938-3-git-send-email-kraxel@redhat.com
Gerd Hoffmann [Wed, 22 Jun 2016 12:07:23 +0000 (14:07 +0200)]
qxl: store memory region and offset instead of pointer for guest slots
Store MemoryRegion and offset instead of a pointer for each qxl memory
slot, so we can easily figure in which memory region an qxl object
stored.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1466597244-5938-2-git-send-email-kraxel@redhat.com
Gerd Hoffmann [Wed, 22 Jun 2016 12:07:22 +0000 (14:07 +0200)]
qxl: factor out qxl_get_check_slot_offset
New helper function which translates a qxl physical address into
memory slot and offset. Also applies sanity checks. Factored out
from qxl_phys2virt. No functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1466597244-5938-1-git-send-email-kraxel@redhat.com
Gerd Hoffmann [Wed, 8 Jun 2016 14:11:41 +0000 (16:11 +0200)]
qxl: handle no updates in interface_update_area_complete
Simply return early in case there are no updated rects.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1465395101-13580-1-git-send-email-kraxel@redhat.com
Gerd Hoffmann [Wed, 8 Jun 2016 12:40:48 +0000 (14:40 +0200)]
qxl: use uint64_t for vram size
This allows for the 64bit vram bar to become larger than 2G
(try -device qxl-vga,vram64_size_mb=8192).
https://bugzilla.redhat.com/show_bug.cgi?id=
1340439
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
1465389648-5179-1-git-send-email-kraxel@redhat.com
Changlong Xie [Tue, 14 Jun 2016 07:27:49 +0000 (15:27 +0800)]
qom: Fix comment typo
It's qom_unref, not qdef_unref.
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Sergey Sorokin [Thu, 23 Jun 2016 18:16:46 +0000 (21:16 +0300)]
tcg: Improve the alignment check infrastructure
Some architectures (e.g. ARMv8) need the address which is aligned
to a size more than the size of the memory access.
To support such check it's enough the current costless alignment
check implementation in QEMU, but we need to support
an alignment size specifying.
Signed-off-by: Sergey Sorokin <afarallax@yandex.ru>
Message-Id: <
1466705806-679898-1-git-send-email-afarallax@yandex.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
[rth: Assert in tcg_canonicalize_memop. Leave get_alignment_bits
available for, though unused by, user-mode. Retain logging difference
based on ALIGNED_ONLY.]
Richard Henderson [Mon, 20 Jun 2016 05:59:13 +0000 (22:59 -0700)]
tcg: Optimize spills of constants
While we can store constants via constrants on INDEX_op_st_i32 et al,
we weren't able to spill constants to backing store.
Add a new backend interface, tcg_out_sti, which may store the constant
(and is allowed to fail). Rearrange the temp_* helpers so that we only
attempt to directly store a constant when the temp is becoming dead/free.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Sat, 18 Jun 2016 00:02:20 +0000 (17:02 -0700)]
tcg: Fix name for high-half register
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Richard Henderson [Thu, 23 Jun 2016 17:39:18 +0000 (10:39 -0700)]
build: Use $(CCAS) for compiling .S files
We fail to pass to $(AS) all of the different flags that may be required
for a given set of CFLAGS. Rather than figuring out the host-specific
mapping, it's better to allow the compiler driver to do that.
However, simply using $(CC) runs afoul of clang trying to build the
option roms. C.f.
3dd46c78525a30e98c68, wherein we changed from
using $(CC) to using $(AS) in the first place.
Work around this by passing -fno-integrated-as to clang, so that we use
the external assembler, and the clang driver still passes along all of
the options that the assembler might require.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <
1466703558-7723-1-git-send-email-rth@twiddle.net>
Peter Maydell [Tue, 5 Jul 2016 16:53:02 +0000 (17:53 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches
# gpg: Signature made Tue 05 Jul 2016 16:46:14 BST
# gpg: using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (43 commits)
block/qcow2: Don't use cpu_to_*w()
block: Convert bdrv_co_preadv/pwritev to BdrvChild
block: Convert bdrv_prwv_co() to BdrvChild
block: Convert bdrv_pwrite_zeroes() to BdrvChild
block: Convert bdrv_pwrite(v/_sync) to BdrvChild
block: Convert bdrv_pread(v) to BdrvChild
block: Convert bdrv_write() to BdrvChild
block: Convert bdrv_read() to BdrvChild
block: Use BlockBackend for I/O in bdrv_commit()
block: Move bdrv_commit() to block/commit.c
block: Convert bdrv_co_do_readv/writev to BdrvChild
block: Convert bdrv_aio_writev() to BdrvChild
block: Convert bdrv_aio_readv() to BdrvChild
block: Convert bdrv_co_writev() to BdrvChild
block: Convert bdrv_co_readv() to BdrvChild
vhdx: Some more BlockBackend use in vhdx_create()
blkreplay: Convert to byte-based I/O
vvfat: Use BdrvChild for s->qcow
block/qdev: Fix NULL access when using BB twice
block: fix return code for partial write for Linux AIO
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 5 Jul 2016 15:48:24 +0000 (16:48 +0100)]
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc, pci, virtio: new features, cleanups, fixes
iommus can not be added with -device.
cleanups and fixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 05 Jul 2016 11:18:32 BST
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream: (30 commits)
vmw_pvscsi: remove unnecessary internal msi state flag
e1000e: remove unnecessary internal msi state flag
vmxnet3: remove unnecessary internal msi state flag
mptsas: remove unnecessary internal msi state flag
megasas: remove unnecessary megasas_use_msi()
pci: Convert msi_init() to Error and fix callers to check it
pci bridge dev: change msi property type
megasas: change msi/msix property type
mptsas: change msi property type
intel-hda: change msi property type
usb xhci: change msi/msix property type
change pvscsi_init_msi() type to void
tests: add APIC.cphp and DSDT.cphp blobs
tests: acpi: add CPU hotplug testcase
log: Permit -dfilter 0..0xffffffffffffffff
range: Replace internal representation of Range
range: Eliminate direct Range member access
log: Clean up misuse of Range for -dfilter
pci_register_bar: cleanup
Revert "virtio-net: unbreak self announcement and guest offloads after migration"
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Kevin Wolf [Tue, 5 Jul 2016 14:55:31 +0000 (16:55 +0200)]
Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2016-07-05-v2' into queue-block
A block patch for the block queue
# gpg: Signature made Tue Jul 5 16:54:22 2016 CEST
# gpg: using RSA key 0x3BB14202E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
# Subkey fingerprint: 58B3 81CE 2DC8 9CF9 9730 EE64 3BB1 4202 E838 ACAD
* mreitz/tags/pull-block-for-kevin-2016-07-05-v2:
block/qcow2: Don't use cpu_to_*w()
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Peter Maydell [Thu, 16 Jun 2016 16:06:17 +0000 (17:06 +0100)]
block/qcow2: Don't use cpu_to_*w()
Don't use the cpu_to_*w() functions, which we are trying to deprecate.
Instead either just use cpu_to_*() to do the byteswap, or use
st*_be_p() if we need to do the store somewhere other than to a
variable that's already the correct type.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
1466093177-17890-1-git-send-email-peter.maydell@linaro.org
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Kevin Wolf [Mon, 20 Jun 2016 19:31:46 +0000 (21:31 +0200)]
block: Convert bdrv_co_preadv/pwritev to BdrvChild
This is the final patch for converting the common I/O path to take
a BdrvChild parameter instead of BlockDriverState.
The completion of this conversion means that all users that perform I/O
on an image need to actually hold a reference (in the form of BdrvChild,
possible as part of a BlockBackend) to that image. This also protects
against inconsistent use of BlockBackend vs. BlockDriverState functions
because direct use of a BlockDriverState isn't possible any more and
blk->root is private for block-backends.c.
In addition, we can now distinguish different users in the I/O path,
and the future op blockers work is going to add assertions based on
permissions stored in BdrvChild.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 13:00:40 +0000 (15:00 +0200)]
block: Convert bdrv_prwv_co() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 16 Jun 2016 13:13:15 +0000 (15:13 +0200)]
block: Convert bdrv_pwrite_zeroes() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 20 Jun 2016 18:09:15 +0000 (20:09 +0200)]
block: Convert bdrv_pwrite(v/_sync) to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 20 Jun 2016 16:24:02 +0000 (18:24 +0200)]
block: Convert bdrv_pread(v) to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 31 May 2016 12:42:08 +0000 (14:42 +0200)]
block: Convert bdrv_write() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 14:48:35 +0000 (16:48 +0200)]
block: Convert bdrv_read() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 14:29:47 +0000 (16:29 +0200)]
block: Use BlockBackend for I/O in bdrv_commit()
Just like block jobs, the HMP commit command should use its own
BlockBackend for doing I/O on BlockDriverStates.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 13:53:15 +0000 (15:53 +0200)]
block: Move bdrv_commit() to block/commit.c
No code changes, just moved from one file to another.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 11:52:34 +0000 (13:52 +0200)]
block: Convert bdrv_co_do_readv/writev to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 10:06:33 +0000 (12:06 +0200)]
block: Convert bdrv_aio_writev() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 10:06:33 +0000 (12:06 +0200)]
block: Convert bdrv_aio_readv() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 24 May 2016 15:21:22 +0000 (17:21 +0200)]
block: Convert bdrv_co_writev() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 24 May 2016 15:21:22 +0000 (17:21 +0200)]
block: Convert bdrv_co_readv() to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 20 Jun 2016 20:05:39 +0000 (22:05 +0200)]
vhdx: Some more BlockBackend use in vhdx_create()
This does some easy conversions from bdrv_* to blk_* functions in
vhdx_create(). We should avoid bypassing the BlockBackend layer whenever
possible.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 12:31:59 +0000 (14:31 +0200)]
blkreplay: Convert to byte-based I/O
The blkreplay driver only forwards the requests it gets, so converting
it to byte granularity is trivial.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 30 May 2016 15:13:09 +0000 (17:13 +0200)]
vvfat: Use BdrvChild for s->qcow
vvfat uses a temporary qcow file to cache written data in read-write
mode. In order to do things properly, this should show up in the BDS
graph and I/O should go through BdrvChild like for every other node.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 23 Jun 2016 07:30:01 +0000 (09:30 +0200)]
block/qdev: Fix NULL access when using BB twice
BlockBackend has only a single pointer to its guest device, so it makes
sure that only a single guest device is attached to it. device-add
returns an error if you try to attach a second device to a BB. In order
to make the error message nicer, -device that manually connects to a
if=none block device get a different message than -drive that implicitly
creates a guest device. The if=... option is stored in DriveInfo.
However, since blockdev-add exists, not every BlockBackend has a
DriveInfo any more. Check that it exists before we dereference it.
QMP reproducer resulting in a segfault:
{"execute":"blockdev-add","arguments":{"options":{"id":"disk","driver":"file","filename":"/tmp/test.img"}}}
{"execute":"device_add","arguments":{"driver":"virtio-blk-pci","drive":"disk"}}
{"execute":"device_add","arguments":{"driver":"virtio-blk-pci","drive":"disk"}}
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Denis V. Lunev [Thu, 23 Jun 2016 11:37:16 +0000 (14:37 +0300)]
block: fix return code for partial write for Linux AIO
Partial write most likely means that there is not space rather than
"something wrong happens". Thus it would be more natural to return
ENOSPC rather than EINVAL.
The problem actually happens with NBD server, which has reported EINVAL
rather then ENOSPC on the first error using its protocol, which makes
report to the user wrong.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Pavel Borzenkov <pborzenkov@virtuozzo.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:26 +0000 (16:37 -0600)]
block: Use bool as appropriate for BDS members
Using int for values that are only used as booleans is confusing.
While at it, rearrange a couple of members so that all the bools
are contiguous.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:25 +0000 (16:37 -0600)]
block: Fix error message style
error_setg() is not supposed to be used for multi-sentence
messages; tweak the message to append a hint instead.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:24 +0000 (16:37 -0600)]
block: Move request_alignment into BlockLimit
It makes more sense to have ALL block size limit constraints
in the same struct. Improve the documentation while at it.
Simplify a couple of conditionals, now that we have audited and
documented that request_alignment is always non-zero.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:23 +0000 (16:37 -0600)]
block: Split bdrv_merge_limits() from bdrv_refresh_limits()
During bdrv_merge_limits(), we were computing initial limits
based on another BDS in two places. At first glance, the two
computations are not identical (one is doing straight copying,
the other is doing merging towards or away from zero) - but
when you realize that the first round is starting with all-0
memory, all of the merging happens to work. Factoring out the
merging makes it easier to track how two BDS limits are merged,
in case we have future reasons to merge in even more limits.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:22 +0000 (16:37 -0600)]
block: Drop raw_refresh_limits()
The raw block driver was blindly copying all limits from bs->file,
even though: 1. the main bdrv_refresh_limits() already does this
for many of the limits, and 2. blindly copying from the children
can weaken any stricter limits that were already inherited from
the backing chain during the main bdrv_refresh_limits(). Also,
a future patch is about to move .request_alignment into
BlockLimits, and that is a limit that should NOT be copied from
other layers in the BDS chain.
Thus, we can completely drop raw_refresh_limits(), and rely on
the block layer setting up the proper limits.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:21 +0000 (16:37 -0600)]
block: Switch discard length bounds to byte-based
Sector-based limits are awkward to think about; in our on-going
quest to move to byte-based interfaces, convert max_discard and
discard_alignment. Rename them, using 'pdiscard' as an aid to
track which remaining discard interfaces need conversion, and so
that the compiler will help us catch the change in semantics
across any rebased code. The BlockLimits type is now completely
byte-based; and in iscsi.c, sector_limits_lun2qemu() is no
longer needed.
pdiscard_alignment is made unsigned (we use power-of-2 alignments
as bitmasks, where unsigned is easier to think about) while
leaving max_pdiscard signed (since we still have an 'int'
interface); this is comparable to what commit
cf081fc did for
write zeroes limits. We may later want to make everything an
unsigned 64-bit limit - but that requires a bigger code audit.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:20 +0000 (16:37 -0600)]
block: Wording tweaks to write zeroes limits
Improve the documentation of the write zeroes limits, to mention
additional constraints that drivers should observe. Worth squashing
into commit
cf081fca, if that hadn't been pushed already :)
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:19 +0000 (16:37 -0600)]
block: Switch transfer length bounds to byte-based
Sector-based limits are awkward to think about; in our on-going
quest to move to byte-based interfaces, convert max_transfer_length
and opt_transfer_length. Rename them (dropping the _length suffix)
so that the compiler will help us catch the change in semantics
across any rebased code, and improve the documentation. Use unsigned
values, so that we don't have to worry about negative values and
so that bit-twiddling is easier; however, we are still constrained
by 2^31 of signed int in most APIs.
When a value comes from an external source (iscsi and raw-posix),
sanitize the results to ensure that opt_transfer is a power of 2.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:18 +0000 (16:37 -0600)]
block: Set default request_alignment during bdrv_refresh_limits()
We want to eventually stick request_alignment alongside other
BlockLimits, but first, we must ensure it is populated at the
same time as all other limits, rather than being a special case
that is set only when a block is first opened.
Now that all drivers have been updated to supply an override
of request_alignment during their .bdrv_refresh_limits(), as
needed, the block layer itself can defer setting the default
alignment until part of the overall bdrv_refresh_limits().
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Eric Blake [Thu, 23 Jun 2016 22:37:17 +0000 (16:37 -0600)]
block: Set request_alignment during .bdrv_refresh_limits()
We want to eventually stick request_alignment alongside other
BlockLimits, but first, we must ensure it is populated at the
same time as all other limits, rather than being a special case
that is set only when a block is first opened.
Add a .bdrv_refresh_limits() to all four of our legacy devices
that will always be sector-only (bochs, cloop, dmg, vvfat), in
spite of their recent conversion to expose a byte interface.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>