Using this function would always be wrong because a dirty bitmap must
have a specific owner that consumes the dirty bits and calls
bdrv_reset_dirty_bitmap().
Remove the unused function to avoid future misuse.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Unsetting dirty globally with discard is not very correct. The discard may zero
out sectors (depending on can_write_zeroes_with_unmap), we should replicate
this change to destination side to make sure that the guest sees the same data.
Calling bdrv_reset_dirty also troubles mirror job because the hbitmap iterator
doesn't expect unsetting of bits after current position.
So let's do it the opposite way which fixes both problems: set the dirty bits
if we are to discard it.
Reported-by: wangxiaolong@ucloud.cn
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If guest discards a source cluster, mirroring with bdrv_aio_readv is overkill.
Some protocols do zero upon discard, where it's best to use
bdrv_aio_write_zeroes, otherwise, bdrv_aio_discard will be enough.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If specified as "true", it allows discarding on target sectors where source is
not allocated.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Like bdrv_is_allocated_above, this function follows the backing chain until seeing
BDRV_BLOCK_ALLOCATED. Base is not included.
Reimplement bdrv_is_allocated on top.
[Initialized bdrv_co_get_block_status_above() ret to 0 to silence
mingw64 compiler warning about the unitialized variable. assert(bs !=
base) prevents that case but I suppose the program could be compiled
with -DNDEBUG.
--Stefan]
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
We want to be able to reuse this define by making it common to
multiple QEMU modules.
This also makes it an integer since there's no need for it to be a
float.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 6375912849da2ab561046dd013684535ccecca44.1434113783.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
bdrv_close already does that, and in fact hmp_drive_del would need
another drain after the flush (which bdrv_close does). So remove
the duplication.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1432822629-25401-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
If we wish to make differential backups a feature that's easy to access,
it might be pertinent to rename the "dirty-bitmap" mode to "incremental"
to make it clear what /type/ of backup the dirty-bitmap is helping us
perform.
This is an API breaking change, but 2.4 has not yet gone live,
so we have this flexibility.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1433463642-21840-2-git-send-email-jsnow@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Fixes a crash during image compression
Signed-off-by: Jindřich Makovička <makovick@gmail.com>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
libiscsi starting with 1.15 will properly support timeout of iscsi
commands. The default will remain no timeout, but this can
be changed via cmdline parameters, e.g.:
qemu -iscsi timeout=30 -drive file=iscsi://...
If a timeout occurs a reconnect is scheduled and the timed out command
will be requeued for processing after a successful reconnect.
The required API call iscsi_set_timeout is present since libiscsi
1.10 which was released in October 2013. However, due to some bugs
in the libiscsi code the use is not recommended before version 1.15.
Please note that this patch bumps the libiscsi requirement to 1.10
to have all function and macros defined. The patch fixes also a
off-by-one error in the NOP timeout calculation which was fixed
while touching these code parts.
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1434455107-19328-1-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Spotted by Coverity, because (env->PCXI & MASK_PCXI_PCPN) >> 24
is always zero. The immediately preceding assignment is also
wrong though.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1435147270-1040-1-git-send-email-pbonzini@redhat.com>
Almost exclusively bugfixes, though in this case,
we are adding functionality to the pxb in order
to make OVMF work on it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
virtio, pci fixes, enhancements
Almost exclusively bugfixes, though in this case,
we are adding functionality to the pxb in order
to make OVMF work on it.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri Jun 26 14:43:27 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
Fix glib_subprocess test
hw/pci-bridge: format special OFW unit address for PXB host
hw/core: explicit OFW unit address callback for SysBusDeviceClass
hw/pci-bridge: disable SHPC in PXB
hw/pci-bridge: introduce "shpc" property
hw/pci: introduce shpc_present() helper function
hw/pci-bridge: add macro for "msi" property
hw/pci-bridge: add macro for "chassis_nr" property
hw/pci-bridge: expose _test parameter in SHPC_VMSTATE()
migration: introduce VMSTATE_BUFFER_UNSAFE_INFO_TEST()
add pci-bridge-seat
pc: cleanup and convert TMP ACPI device description to AML API
MAINTAINERS: add ACPI entry
vhost: correctly pass error to caller in vhost_dev_enable_notifiers()
balloon: add a feature bit to let Guest OS deflate balloon on oom
qdev: fix OVERFLOW_BEFORE_WIDEN
virito-pci: fix OVERRUN problem
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Change the virt board's default interface type for block devices to virtio
* Improve some error messages that will now be triggered by some incorrect
but previously worked-by-accident command lines
* Print ELR if we're doing debug logging of AArch64 exception entry
* Handle the "completely empty semihosting commandline" correctly for
softmmu (we already did for linux-user)
* Add GICv2m description to ACPI tables for virt board
* Fix some incorrect table revision entries in virt board ACPI tables
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150626' into staging
target-arm queue:
* Change the virt board's default interface type for block devices to virtio
* Improve some error messages that will now be triggered by some incorrect
but previously worked-by-accident command lines
* Print ELR if we're doing debug logging of AArch64 exception entry
* Handle the "completely empty semihosting commandline" correctly for
softmmu (we already did for linux-user)
* Add GICv2m description to ACPI tables for virt board
* Fix some incorrect table revision entries in virt board ACPI tables
# gpg: Signature made Fri Jun 26 14:29:39 2015 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20150626:
hw/arm/virt: Make block devices default to virtio
qdev-properties-system: Improve error message for drive assignment conflict
qdev-properties-system: Change set_pointer's parse callback to use Error
target-arm: A64: Print ELR when taking exceptions
target-arm: default empty semihosting cmdline
hw/arm/virt-acpi-build: Add GICv2m description in ACPI MADT table
hw/arm/virt-acpi-build: Fix table revision and some comments
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Now we have virtio-pci, we can make the virt board's default block
device type be IF_VIRTIO. This allows users to use simplified
command lines that don't have to explicitly create virtio-pci-blk
devices; the -hda &c very short options now also work.
This means we also need to set no_cdrom to avoid getting a
default cdrom device -- this is needed because the virtio-blk
device will fail if it is connected to a block backend with
no media, which is what the default cdrom device typically is.
Providing a cdrom with media via -cdrom will succeed, but silently
create a device with non-removable medium. this is probably
not really what the user wants, but is the best we can do now.
Note that this change means that some command lines which used
to work (by accident) will stop working. Where a drive was connected
manually to a device but without 'if=none' being specified, we
used to treat this as an IDE drive, which we would then not autoplug
because the board doesn't support IDE. Now we will treat it as a
virtio disk and autoplug it, which means the attempt to use the
drive manually will fail:
qemu-system-arm: -drive file=img.qcow2,id=foo: Drive 'foo' is already
in use because it has been automatically connected to another device
(did you need 'if=none' in the drive options?)
The command line will have to be changed to include 'if=none', as the
error message suggests.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435068107-12594-4-git-send-email-peter.maydell@linaro.org
If the user forgot if=none on their drive specification they're likely
to get an error message because the drive is assigned once automatically
by QEMU and once by the manual id=/drive= user command line specification.
Improve the error message produced in this case to explicitly guide the
user towards if=none.
We rephrase the "drive conflict but not for an if=something" error as
well to keep the wording in line.
The two cases that change are:
(1) Drive specified as to be auto-connected and also manually connected
(and the board does handle this if= type):
qemu-system-x86_64 -nodefaults -display none \
-drive if=scsi,file=tmp.qcow2,id=foo -device ide-hd,drive=foo
Previously:
qemu-system-x86_64: -device ide-hd,drive=foo: Property 'ide-hd.drive'
can't take value 'foo', it's in use
Now:
qemu-system-x86_64: -device ide-hd,drive=foo: Drive 'foo' is already in
use because it has been automatically connected to another device (did
you need 'if=none' in the drive options?)
(2) Drive specified to be manually connected in two different ways:
qemu-system-x86_64 -nodefaults -display none \
-drive if=none,file=tmp.qcow2,id=foo -device ide-hd,drive=foo \
-device ide-hd,drive=foo
Previously:
qemu-system-x86_64: -device ide-hd,drive=foo: Property 'ide-hd.drive'
can't take value 'foo', it's in use
Now:
qemu-system-x86_64: -device ide-hd,drive=foo: Drive 'foo' is already in
use by another device
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435068107-12594-3-git-send-email-peter.maydell@linaro.org
Instead of having set_pointer() call a parse callback which returns
an error number that we then convert to an Error string with
error_set_from_qdev_prop_error(), make the parse callback take an
Error** and set the error itself. This will allow parse routines
to provide more helpful error messages than the generic ones.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435068107-12594-2-git-send-email-peter.maydell@linaro.org
When taking an exception print the content of the exception link
register. This is useful especially for synchronous exceptions because
in that case this registers holds the address of the instruction that
generated the exception.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Message-id: 1435036655-16132-1-git-send-email-soren.brinkmann@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If neither explicit semihosting args nor -kernel are used,
make SYS_GET_CMDLINE return an empty string.
Signed-off-by: Liviu Ionescu <ilg@livius.net>
Message-id: AC7B5AFC-06AE-4FAD-9852-B65708E80E09@livius.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add GICv2m description in ACPI MADT table, so guest can use MSI when
booting with ACPI.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Message-id: 1434676210-2276-1-git-send-email-shannon.zhao@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The table revision is not the ACPI spec version. Fix the wrong revision
and also some comments.
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1433820378-8336-1-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Define a new CPU definition supporting MIPS32 Release 6 ISA and
microMIPS32 Release 6 ISA.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Add new microMIPS32 Release 6 Major opcode instructions
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Add new microMIPS32 Release 6 POOL32I/POOL32C type instructions
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Add new microMIPS32 Release 6 branch and jump instructions.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Signal a Reserved Instruction exception for removed instruction encoding
in microMIPS Release 6.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
64-bit paired-single (PS) floating point data type is optional in the
pre-Release 6.
It has to raise RI exception when PS type is not implemented. (FIR.PS = 0)
(The PS data type is removed in the Release 6.)
Loongson-2E and Loongson-2F don't have any implementation field in
FCSR0(FIR) but do support PS data format, therefore for these cores RI will
not be signalled regardless of PS bit.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
The function will be also used for microMIPS Release 6.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Refactor those instructions in order to reuse them for microMIPS32
Release 6.
Rearrange gen_move_low32().
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Remove an unused argument from decode_micromips32_opc()
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
rt, rs were swapped
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Convert only errno values which can be returned by system calls in
mips-semi.c and are not generic to all archs.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Add UHI semihosting support for MIPS. QEMU run with "-semihosting" option
will alter the behaviour of SDBBP 1 instruction -- UHI operation will be
called instead of generating a debug exception.
Also tweak Malta's pseudo-bootloader. On CPU reset the $4 register is set
to -1 if semihosting arguments are passed to indicate that the UHI
operations should be used to obtain input arguments.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
The BEV flag controls whether the boot exception vector is still
in place when starting a kernel. When cleared the exception vector
at EBASE (or hard coded address of 0x80000000) is used instead.
The early stages of the linux kernel would benefit from BEV still
being set to ensure any faults get handled by the boot rom exception
handlers. This is a moot point for system qemu as there aren't really
any BEV handlers, but there are other good reasons to change this...
The UHI (semi-hosting interface) defines special behaviours depending
on whether an application starts in an environment with BEV set or
cleared. When BEV is set then UHI assumes that a bootloader is
relatively dumb and has no advanced exception handling logic.
However, when BEV is cleared then UHI assumes that the bootloader
has the ability to handle UHI exceptions with its exception handlers
and will unwind and forward UHI SYSCALL exceptions to the exception
vector that was installed prior to running the application.
Signed-off-by: Matthew Fortune <matthew.fortune@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Correct addresses passed around in semihosting to use a data type suitable
for both 32-bit and 64-bit targets.
Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
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Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
# gpg: Signature made Wed Jun 24 16:37:23 2015 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/net-pull-request:
net: simplify net_client_init1()
net: drop if expression that is always true
net: raise an error if -net type is invalid
net: replace net_client_init1() netdev whitelist with blacklist
net: add missing "netmap" to host_net_devices[]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Wed Jun 24 16:27:53 2015 BST 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:
virito-blk: drop duplicate check
qemu-iotests: fix 051.out after qdev error message change
iov: don't touch iov in iov_send_recv()
raw-posix: Introduce hdev_is_sg()
raw-posix: Use DPRINTF for DEBUG_FLOPPY
raw-posix: DPRINTF instead of DEBUG_BLOCK_PRINT
Fix migration in case of scsi-generic
block: Use bdrv_is_sg() everywhere
nvme: Fix memleak in nvme_dma_read_prp
vvfat: add a label option
util/hbitmap: Add an API to reset all set bits in hbitmap
virtio-blk: Use blk_drain() to drain IO requests
block-backend: Introduce blk_drain()
throttle: Check current timers before updating any_timer_armed[]
block: Let bdrv_drain_all() to call aio_poll() for each AioContext
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Drop the union and move the hubport creation into the !is_netdev case.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1432743412-15943-6-git-send-email-stefanha@redhat.com
