Lets the user manage event arguments as a list, and simplifies argument
concatenation.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 145641858432.30295.3069911069472672646.stgit@localhost
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
we should call trace_init_backends() before trace_init_file() for
CONFIG_TRACE_SIMPLE There is no difference for other cases.
This problem was introduced by the commit
commit 41fc57e44e
Author: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu Jan 7 16:55:24 2016 +0300
trace: split trace_init_file out of trace_init_backends
'make check' was failed as a result if configured with
--enable-trace-backends=simple
Spotted by Alex Bennée.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1455036545-14870-1-git-send-email-den@openvz.org
CC: Alex Bennée <alex.bennee@linaro.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
When memory_region_ops tracepoints are enabled, calculate and record the
absolute address being accessed. Otherwise, we only get offsets into the
memory region instead of addresses.
[Fixed "offset" -> "addr" in trace event format strings.
--Stefan]
Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com>
Message-id: 1454976185-30095-3-git-send-email-hollis_blanchard@mentor.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Previously, a single MMIO could trigger the memory_region_ops tracepoint twice:
once on its way into subpage ops, then later on its way into the model's ops.
Also, the fields previously called "addr" are actually offsets into the memory
region. Rename them to "offset" while we're editing the tracepoint definitions.
Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com>
Message-id: 1454976185-30095-2-git-send-email-hollis_blanchard@mentor.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Also fix a typo in the virtio_balloon_handle_output() trace while here.
[The double-quoting was a limitation of the old tracetool.sh script.
The modern tracetool.py script does not require double-quotes at the end
of the line. See commit cf85cf8e97
("trace: Format strings must begin/end with double quotes").
--Stefan]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20160111173036.24764.59878.stgit@bahia.huguette.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
git shortlog rel-1.9.0..rel-1.9.1
=================================
Cole Robinson (1):
biostables: Support SMBIOS 2.6+ UUID format
Kevin O'Connor (7):
xhci: Check for device disconnects during USB2 reset polling
xhci: Wait for port enable even for USB3 devices
sdcard: Only enable error_irq_enable for bits defined in SDHCI v1 spec
sdcard: fix typo causing 32bit write to 16bit block_size field
nmi: Don't try to switch onto extra stack in NMI handler
scsi: Do not call printf() from scsi_is_ready()
coreboot: Check for unaligned cbfs header
Marcel Apfelbaum (1):
fw/pci: do not automatically allocate IO region for PCIe bridges
Roger Pau Monne (1):
build: fix typo in buildversion.py
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
With all fixups being in place now, we can promote input-send-event
to stable abi by removing the x- prefix.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Lowercase them.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
All lowercase, use-dash instead of CamelCase.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Use display device qdev id and head number instead of console index to
specify the QemuConsole. This makes things consistent with input
devices (for input routing) and vnc server configuration, which both use
display and head too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
We have two places needing this, and a third one will come shortly.
So factor things out into a helper function to reduce code duplication.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
The "max" value is being compared with >=, but addr + width points to
the first byte that will _not_ be copied. Laszlo suggested using a
"greater than" comparison, instead of subtracting one like it is
already done above for the height, so that max remains always positive.
The mistake is "safe"---it will reject some blits, but will never cause
out-of-bounds writes.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1455121059-18280-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
If a backing file isn't specified in the target image and the
cluster_size is larger than the bitmap granularity, we run the risk of
creating bitmaps with allocated clusters but empty/no data which will
prevent the proper reading of the backup in the future.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1456433911-24718-4-git-send-email-jsnow@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
During incremental backups, if the target has a cluster size that is
larger than the backup cluster size and we are backing up to a target
that cannot (for whichever reason) pull clusters up from a backing image,
we may inadvertantly create unusable incremental backup images.
For example:
If the bitmap tracks changes at a 64KB granularity and we transmit 64KB
of data at a time but the target uses a 128KB cluster size, it is
possible that only half of a target cluster will be recognized as dirty
by the backup block job. When the cluster is allocated on the target
image but only half populated with data, we lose the ability to
distinguish between zero padding and uninitialized data.
This does not happen if the target image has a backing file that points
to the last known good backup.
Even if we have a backing file, though, it's likely going to be faster
to just buffer the redundant data ourselves from the live image than
fetching it from the backing file, so let's just always round up to the
target granularity.
The same logic applies to backup modes top, none, and full. Copying
fractional clusters without the guarantee of COW is dangerous, but even
if we can rely on COW, it's likely better to just re-copy the data.
Reported-by: Fam Zheng <famz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1456433911-24718-3-git-send-email-jsnow@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
64K might not always be appropriate, make this a runtime value.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1456433911-24718-2-git-send-email-jsnow@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
The three lines are duplicated a number of times now, refactor a
function.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1454637630-10585-3-git-send-email-famz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
The "pnum < nb_sectors" condition in deciding whether to actually copy
data is unnecessarily strict, and the qiov initialization is
unnecessarily for bdrv_aio_write_zeroes and bdrv_aio_discard.
Rewrite mirror_iteration to fix both flaws.
The output of iotests 109 is updated because we now report the offset
and len slightly differently in mirroring progress.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1454637630-10585-2-git-send-email-famz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
For values which are powers of two (and we do assume all of these to
be), sizeof(x) * 8 - 1 - clz(x) == ctz(x). Therefore, use ctz().
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 1450451066-13335-3-git-send-email-mreitz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
We have DIV_ROUND_UP(), so we can use it to produce more easily readable
code. It may be slower than the bit shifting currently performed
(because it actually performs a division), but since
vhdx_calc_bat_entries() is never used in a hot path, this is completely
fine.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 1450451066-13335-2-git-send-email-mreitz@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
The iSCSI driver currently accepts the CHAP password in plain text
as a block driver property. This change adds a new "password-secret"
property that accepts the ID of a QCryptoSecret instance.
$QEMU \
-object secret,id=sec0,filename=/home/berrange/example.pw \
-drive driver=iscsi,url=iscsi://example.com/target-foo/lun1,\
user=dan,password-secret=sec0
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1453385961-10718-4-git-send-email-berrange@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
If connecting to a web server which has authentication
turned on, QEMU gets a 401 as curl has not been configured
with any authentication credentials.
This adds 4 new parameters to the curl block driver
options 'username', 'password-secret', 'proxy-username'
and 'proxy-password-secret'. Passwords are provided using
the recently added 'secret' object type
$QEMU \
-object secret,id=sec0,filename=/home/berrange/example.pw \
-object secret,id=sec1,filename=/home/berrange/proxy.pw \
-drive driver=http,url=http://example.com/some.img,\
username=dan,password-secret=sec0,\
proxy-username=dan,proxy-password-secret=sec1
Of course it is possible to use the same secret for both the
proxy & server passwords if desired, or omit the proxy auth
details, or the server auth details as required.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1453385961-10718-3-git-send-email-berrange@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
Currently RBD passwords must be provided on the command line
via
$QEMU -drive file=rbd:pool/image:id=myname:\
key=QVFDVm41aE82SHpGQWhBQXEwTkN2OGp0SmNJY0UrSE9CbE1RMUE=:\
auth_supported=cephx
This is insecure because the key is visible in the OS process
listing.
This adds support for an 'password-secret' parameter in the RBD
parameters that can be used with the QCryptoSecret object to
provide the password via a file:
echo "QVFDVm41aE82SHpGQWhBQXEwTkN2OGp0SmNJY0UrSE9CbE1RMUE=" > poolkey.b64
$QEMU -object secret,id=secret0,file=poolkey.b64,format=base64 \
-drive driver=rbd,filename=rbd:pool/image:id=myname:\
auth_supported=cephx,password-secret=secret0
Reviewed-by: Josh Durgin <jdurgin@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1453385961-10718-2-git-send-email-berrange@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
This patch implements a blockdriver function bdrv_snapshot_delete() in
the sheepdog driver. With the new function, snapshots of sheepdog can
be deleted from libvirt.
Cc: Jeff Cody <jcody@redhat.com>
Signed-off-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp>
Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
Message-id: 1450873346-22334-1-git-send-email-mitake.hitoshi@lab.ntt.co.jp
Signed-off-by: Jeff Cody <jcody@redhat.com>
recent libnfs versions support logging debug messages. Add
support for it in qemu through an URL parameter.
Example:
qemu -cdrom nfs://127.0.0.1/iso/my.iso?debug=2
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447052973-14513-1-git-send-email-pl@kamp.de
Signed-off-by: Jeff Cody <jcody@redhat.com>
Some more accumulated patches for target-ppc, pseries machine type and
related devices to fit in before the qemu-2.6 soft freeze.
* Mostly bugfixes and small cleanups for spapr and Mac platforms
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.6-20160229' into staging
ppc patch queue for 2016-02-29
Some more accumulated patches for target-ppc, pseries machine type and
related devices to fit in before the qemu-2.6 soft freeze.
* Mostly bugfixes and small cleanups for spapr and Mac platforms
# gpg: Signature made Mon 29 Feb 2016 06:56:34 GMT using RSA key ID 20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: 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: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.6-20160229:
xics: report errors with the QEMU Error API
migration: allow machine to enforce configuration section migration
spapr: skip configuration section during migration of older machines
dbdma: warn when using unassigned channel
spapr: disable vmdesc submission for old machines
spapr_pci: fix irq leak in RTAS ibm,change-msi
spapr_pci: kill useless variable in rtas_ibm_change_msi()
spapr_rng: disable hotpluggability
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If dropping packets, data is freed, the caller's loop should not continue.
Reported by ccc-analyzer.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1456301288-1592-1-git-send-email-famz@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
USB-related docs and include files should go into the USB
section of the MAINTAINERS file.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1456392967-20274-2-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The ui/ folder is listed in the "Graphics" section, so I think
the "include/ui/" folder should be listed there, too.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1456392967-20274-4-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
After 474114b7 the dmabuf feature is enabled whenever spice
greater than or equal to spice 0.13.0 is found. This is because
two new functions are required: spice_qxl_gl_scanout and
spice_qxl_gl_draw_async. These were, however, introduce in 0.13.1
release. Well, technically they haven't been released yet, but
for sure they are not going to be part of 0.13.0 release (for the
ABI stability sake).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-id: 1a724e97cb587624d6f6009c15395496bccfa32b.1456317738.git.mprivozn@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Using the return value to report errors is error prone:
- xics_alloc() returns -1 on error but spapr_vio_busdev_realize() errors
on 0
- xics_alloc_block() returns the unclear value of ics->offset - 1 on error
but both rtas_ibm_change_msi() and spapr_phb_realize() error on 0
This patch adds an errp argument to xics_alloc() and xics_alloc_block() to
report errors. The return value of these functions is a valid IRQ number
if errp is NULL. It is undefined otherwise.
The corresponding error traces get promotted to error messages. Note that
the "can't allocate IRQ" error message in spapr_vio_busdev_realize() also
moves to xics_alloc(). Similar error message consolidation isn't really
applicable to xics_alloc_block() because callers have extra context (device
config address, MSI or MSIX).
This fixes the issues mentioned above.
Based on previous work from Brian W. Hart.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Migration of pseries-2.3 doesn't have configuration section. Unfortunately,
QEMU 2.4/2.4.1/2.5 are buggy and always stream and expect the configuration
section, and break migration both ways.
This patch introduces a property which allows to enforce a configuration
section for machines who don't have one.
It can be set at startup:
-machine enforce-config-section=on
or later from the QEMU monitor:
qom-set /machine enforce-config-section on
It is up to the tooling to set or unset this property according to the
version of the QEMU at the other end of the pipe.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since QEMU 2.4, we have a configuration section in the migration stream.
This must be skipped for older machines, like it is already done for x86.
This patch fixes the migration of pseries-2.3 from/to QEMU 2.3, but it
breaks migration of the same machine from/to QEMU 2.4/2.4.1/2.5. We do
that anyway because QEMU 2.3 is likely to be more widely deployed than
newer QEMU versions.
Fixes: 61964c23e5
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
With this, it's easier to know if a guest uses an invalid and/or unimplemented
DMA channel.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since QEMU 2.3, we have a vmdesc section in the migration stream.
This section is not mandatory but when migrating a pseries-2.2
machine from QEMU 2.2, you get a warning at the destination:
qemu-system-ppc64: Expected vmdescription section, but got 0
The warning goes away if we decide to skip vmdesc as well for
older pseries, like it is already done for pc's.
This can only be observed with -cpu POWER7 because POWER8
cannot migrate from QEMU 2.2 to 2.3 (insns_flags2 mismatch).
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This RTAS call is used to request new interrupts or to free all interrupts.
If the driver has already allocated interrupts and asks again for a non-null
number of irqs, then the rtas_ibm_change_msi() function will silently leak
the previous interrupts.
It happens because xics_free() is only called when the driver releases all
interrupts (!req_num case). Note that the previously allocated spapr_pci_msi
is not leaked because the GHashTable is created with destroy functions and
g_hash_table_insert() hence frees the old value.
This patch makes sure any previously allocated MSIs are released when a
new allocation succeeds.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The num local variable is initialized to zero and has no writer.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
It is currently possible to hotplug a spapr_rng device but QEMU crashes
when we try to hot unplug:
ERROR:hw/core/qdev.c:295:qdev_unplug: assertion failed: (hotplug_ctrl)
Aborted
This happens because spapr_rng isn't plugged to any bus and sPAPR does
not provide hotplug support for it: qdev_get_hotplug_handler() hence
return NULL and we hit the assertion.
And anyway, it doesn't make much sense to unplug this device since hcalls
cannot be unregistered. Even the idea of hotplugging a RNG device instead
of declaring it on the QEMU command line looks weird.
This patch simply disables hotpluggability for the spapr-rng class.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* Clean up handling of bad mode switches writing to CPSR, and implement
the ARMv8 requirement that they set PSTATE.IL
* Implement MDCR_EL3.TPM and MDCR_EL2.TPM traps on perf monitor
register accesses
* Don't implement stellaris-pl061-only registers on generic-pl061
* Fix SD card handling for raspi
* Add missing include files to MAINTAINERS
* Mark CNTHP_TVAL_EL2 as ARM_CP_NO_RAW
* Make reserved ranges in ID_AA64* spaces RAZ, not UNDEF
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160226' into staging
target-arm queue:
* Clean up handling of bad mode switches writing to CPSR, and implement
the ARMv8 requirement that they set PSTATE.IL
* Implement MDCR_EL3.TPM and MDCR_EL2.TPM traps on perf monitor
register accesses
* Don't implement stellaris-pl061-only registers on generic-pl061
* Fix SD card handling for raspi
* Add missing include files to MAINTAINERS
* Mark CNTHP_TVAL_EL2 as ARM_CP_NO_RAW
* Make reserved ranges in ID_AA64* spaces RAZ, not UNDEF
# gpg: Signature made Fri 26 Feb 2016 15:19:07 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-20160226:
target-arm: Make reserved ranges in ID_AA64* spaces RAZ, not UNDEF
target-arm: Mark CNTHP_TVAL_EL2 as ARM_CP_NO_RAW
sdhci: add quirk property for card insert interrupt status on Raspberry Pi
sdhci: Revert "add optional quirk property to disable card insertion/removal interrupts"
MAINTAINERS: Add some missing ARM related header files
raspi: fix SD card with recent sdhci changes
ARM: PL061: Checking register r/w accesses to reserved area
target-arm: Implement MDCR_EL3.TPM and MDCR_EL2.TPM traps
target-arm: Fix handling of SDCR for 32-bit code
target-arm: Make Monitor->NS PL1 mode changes illegal if HCR.TGE is 1
target-arm: Make mode switches from Hyp via CPS and MRS illegal
target-arm: In v8, make illegal AArch32 mode changes set PSTATE.IL
target-arm: Forbid mode switch to Mon from Secure EL1
target-arm: Add Hyp mode checks to bad_mode_switch()
target-arm: Add comment about not implementing NSACR.RFR
target-arm: In cpsr_write() ignore mode switches from User mode
linux-user: Use restrictive mask when calling cpsr_write()
target-arm: Raw CPSR writes should skip checks and bank switching
target-arm: Add write_type argument to cpsr_write()
target-arm: Give CPSR setting on 32-bit exception return its own helper
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- fix a qcow2 assert
- fix for older distros (CentOS 5)
- documentation for vmstate flags
- minor code rearrangement
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Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.6-5' into staging
migration pull
- fix a qcow2 assert
- fix for older distros (CentOS 5)
- documentation for vmstate flags
- minor code rearrangement
# gpg: Signature made Fri 26 Feb 2016 15:15:15 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg: aka "Amit Shah <amit@kernel.org>"
# gpg: aka "Amit Shah <amitshah@gmx.net>"
* remotes/amit-migration/tags/migration-for-2.6-5:
migration (postcopy): move bdrv_invalidate_cache_all of of coroutine context
migration (ordinary): move bdrv_invalidate_cache_all of of coroutine context
migration/vmstate: document VMStateFlags
MAINTAINERS: Add docs/migration.txt to the "Migration" section
migration/postcopy-ram: Guard use of sys/eventfd.h with CONFIG_EVENTFD
migration: reorder code to make it symmetric
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There is a possibility to hit an assert in qcow2_get_specific_info that
s->qcow_version is undefined. This happens when VM in starting from
suspended state, i.e. it processes incoming migration, and in the same
time 'info block' is called.
The problem is that qcow2_invalidate_cache() closes the image and
memset()s BDRVQcowState in the middle.
The patch moves processing of bdrv_invalidate_cache_all out of
coroutine context for postcopy migration to avoid that. This function
is called with the following stack:
process_incoming_migration_co
qemu_loadvm_state
qemu_loadvm_state_main
loadvm_process_command
loadvm_postcopy_handle_run
Signed-off-by: Denis V. Lunev <den@openvz.org>
Tested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Amit Shah <amit.shah@redhat.com>
Message-Id: <1456304019-10507-3-git-send-email-den@openvz.org>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
