Add an Error ** parameter to bdrv_open, bdrv_file_open and associated
functions to allow more specific error messages.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Add an Error ** parameter to BlockDriver.bdrv_open and
BlockDriver.bdrv_file_open to allow more specific error messages.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Create in transaction and deletion in single command will be tested.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
It is hard to make both id and name optional in hmp console as qmp
interface, so this interface require user to specify name.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This interface use id and name as optional parameters, to handle the
case that one image contain multiple snapshots with same name which
may be '', but with different id.
Adding parameter id is for historical compatiability reason, and
that case is not possible in qemu's new interface for internal
snapshot at block device level, but still possible in qemu-img.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Unlike savevm, the qmp_transaction interface will not generate
snapshot name automatically, saving trouble to return information
of the new created snapshot.
Although qcow2 support storing multiple snapshots with same name
but different ID, here it will fail when an snapshot with that name
already exist before the operation. Format such as rbd do not support
ID at all, and in most case, it means trouble to user when he faces
multiple snapshots with same name, so ban that case. Request with
empty name will be rejected.
Snapshot ID can't be specified in this interface.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Snapshot creation actually already distinguish id and name since it take
a structured parameter *sn, but delete can't. Later an accurate delete
is needed in qmp_transaction abort and blockdev-snapshot-delete-sync,
so change its prototype. Also *errp is added to tip error, but return
value is kepted to let caller check what kind of error happens. Existing
caller for it are savevm, delvm and qemu-img, they are not impacted by
introducing a new function bdrv_snapshot_delete_by_id_or_name(), which
check the return value and do the operation again.
Before this patch:
For qcow2, it search id first then name to find the one to delete.
For rbd, it search name.
For sheepdog, it does nothing.
After this patch:
For qcow2, logic is the same by call it twice in caller.
For rbd, it always fails in delete with id, but still search for name
in second try, no change to user.
Some code for *errp is based on Pavel's patch.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
To make it clear about id and name in searching, add this API
to distinguish them. Caller can choose to search by id or name,
*errp will be set only for exception.
Some code are modified based on Pavel's patch.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add one test case for zero cluster expansion on qcow2 version downgrade
in shared L2 tables (i.e., L2 tables with a refcount > 1) and one for
zero expansion on backed clusters in shared L2 tables.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This case will test whether the monitor can receive fd at runtime.
To verify better, additional monitor is created to see if qemu
can handler two monitor instances correctly.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This patch make use of the compiled scm helper program to transfer
fd via unix socket at runtime.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This program can do a sendmsg call to transfer fd with unix
socket, which is not supported in python2.
The built binary will not be deleted in clean, but it is a
existing issue in ./tests, which should be solved in another
patch.
Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Implement bdrv_amend_options for compat, size, backing_file, backing_fmt
and lazy_refcounts.
Downgrading images from compat=1.1 to compat=0.10 is achieved through
handling all incompatible flags accordingly, clearing all compatible and
autoclear flags and expanding all zero clusters.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Save the image refcount order in BDRVQcowState. This will be relevant
for future code supporting different refcount orders than four and also
for code that needs to verify a certain refcount order for an opened
image.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add functionality for expanding zero clusters. This is necessary for
downgrading the image version to one without zero cluster support.
For non-backed images, this function may also just discard zero clusters
instead of truly expanding them.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Add a function for emptying a cache, i.e., flushing it and marking all
elements invalid.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This patch adds the "amend" option to qemu-img which allows changing
image options on existing image files. It also adds the generic bdrv
implementation which is basically just a wrapper for the image format
specific function.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
It is a valid case that the read data's size is smaller than the
requested size since there could be files that are smaller than
the minimum block size (For ex. when a VMDK disk descriptor file)
Signed-off-by: Tal Kain <tal.kain@ravellosystems.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
During savevm, the VM state is written to the active L1 of the image and
then a snapshot is taken. After that, the VM state isn't needed any more
in the active L1 and should be discarded. This is implemented by this
patch.
The impact of not discarding the VM state is that a snapshot can never
become smaller than any previous snapshot (because it would be padded
with old VM state), and more importantly that future savevm operations
cause unnecessary COWs (with associated flushes), which makes subsequent
snapshots much slower.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The function will be used internally instead of only being called for
guest discard requests.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
* aarch64 preparation patchset (excluding the defconfigs, so this
doesn't actually enable the new targets yet)
* minor bugfixes and cleanups
* disable "-cpu any" in system emulation mode
* fix ARMv7M stack alignment on reset
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Merge remote-tracking branch 'pmaydell/tags/pull-target-arm-20130910' into staging
ARM queue:
* aarch64 preparation patchset (excluding the defconfigs, so this
doesn't actually enable the new targets yet)
* minor bugfixes and cleanups
* disable "-cpu any" in system emulation mode
* fix ARMv7M stack alignment on reset
# gpg: Signature made Tue 10 Sep 2013 01:46:11 PM CDT using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found
# By Alexander Graf (13) and others
# Via Peter Maydell
* pmaydell/tags/pull-target-arm-20130910: (28 commits)
configure: Add handling code for AArch64 targets
linux-user: Add AArch64 support
linux-user: Allow targets to specify a minimum uname release
linux-user: Add AArch64 termbits.h definitions
linux-user: Implement cpu_set_tls() and cpu_clone_regs() for AArch64
linux-user: Make sure NWFPE code is 32 bit ARM only
linux-user: Add signal handling for AArch64
linux-user: Fix up AArch64 syscall handlers
linux-user: Add syscall number definitions for AArch64
linux-user: Add cpu loop for AArch64
linux-user: Don't treat AArch64 cpu names specially
target-arm: Add AArch64 gdbstub support
target-arm: Add AArch64 translation stub
target-arm: Prepare translation for AArch64 code
target-arm: Disable 32 bit CPUs in 64 bit linux-user builds
target-arm: Add new AArch64CPUInfo base class and subclasses
target-arm: Pass DisasContext* to gen_set_pc_im()
target-arm: Fix target_ulong/uint32_t confusions
target-arm: Export cpu_env
target-arm: Extract the disas struct to a header file
...
Message-id: 1378839142-7726-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Gerd Hoffmann (2) and Christophe Fergeau (1)
# Via Gerd Hoffmann
* spice/spice.v73:
qxl: fix local renderer
qxl: trace io port name
spice-core: Use g_strdup_printf instead of snprintf
Message-id: 1378807572-27902-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Gerd Hoffmann (2) and Miroslav Rezanina (2)
# Via Gerd Hoffmann
* kraxel/usb.89:
ehci: save device pointer in EHCIState
Remove dev-bluetooth.c dependency from vl.c
Preparation for usb-bt-dongle conditional build
usb: sanity check setup_index+setup_len in post_load
Message-id: 1378806073-25197-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Tomoki Sekiyama (10) and Paul Burton (1)
# Via Michael Roth
* mdroth/qga-pull-2013-9-9:
QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze command
qemu-ga: Install Windows VSS provider on `qemu-ga -s install'
qemu-ga: Call Windows VSS requester in fsfreeze command handler
qemu-ga: Add Windows VSS provider and requester as DLL
error: Add error_set_win32 and error_setg_win32
qemu-ga: Add configure options to specify path to Windows/VSS SDK
Add a script to extract VSS SDK headers on POSIX system
checkpatch.pl: Check .cpp files
Add c++ keywords to QAPI helper script
configure: Support configuring C++ compiler
mips_malta: support up to 2GiB RAM
Message-id: 1378755701-2051-1-git-send-email-mdroth@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Anthony PERARD
# Via Stefano Stabellini
* sstabellini/xen-2013-09-09:
pc_q35: Initialize Xen.
pc: Initializing ram_memory under Xen.
Message-id: alpine.DEB.2.02.1309091718030.6397@kaball.uk.xensource.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Paolo Bonzini (21) and others
# Via Stefan Hajnoczi
* stefanha/block: (42 commits)
qemu-iotests: Fixed test case 026
qemu-iotests: Whitespace cleanup
dataplane: Fix startup race.
block: look for zero blocks in bs->file
block: add default get_block_status implementation for protocols
raw-posix: report unwritten extents as zero
raw-posix: return get_block_status data and flags
docs, qapi: document qemu-img map
qemu-img: add a "map" subcommand
block: return BDRV_BLOCK_ZERO past end of backing file
block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO
block: return get_block_status data and flags for formats
block: define get_block_status return value
block: introduce bdrv_get_block_status API
block: make bdrv_has_zero_init return false for copy-on-write-images
qemu-img: always probe the input image for allocated sectors
block: expect errors from bdrv_co_is_allocated
block: remove bdrv_is_allocated_above/bdrv_co_is_allocated_above distinction
block: do not use ->total_sectors in bdrv_co_is_allocated
block: make bdrv_co_is_allocated static
...
Message-id: 1378481953-23099-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
# By Brad Smith (2) and others
# Via Stefan Hajnoczi
* stefanha/net:
ne2000: mark I/O as LITTLE_ENDIAN
vmxnet3: Eliminate __packed redefined warning
e1000: add interrupt mitigation support
net: Rename send_queue to incoming_queue
tap: Use numbered tap/tun devices on all *BSD OS's
Message-id: 1378481624-20964-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
Add the necessary code to configure to handle AArch64 as a target
CPU (we already have some code for supporting it as host). Note
that this doesn't enable the AArch64 targets yet.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-23-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-12-git-send-email-john.rigby@linaro.org
[PMM:
* don't need to set TARGET_ABI_DIR to aarch64 as that is the default
* don't build nwfpe -- this is 32 bit legacy only
* rewrite commit message
* add aarch64 to the list of "fdt required" targets
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch adds support for AArch64 in all the small corners of
linux-user (primarily in image loading and startup code).
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-22-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-11-git-send-email-john.rigby@linaro.org
[PMM:
* removed some unnecessary #defines from syscall.h
* catch attempts to use a 32 bit only cpu with aarch64-linux-user
* termios stuff moved into its own patch
* we specify our minimum uname version here now
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For newer target architectures, glibc can be picky about the kernel
version: for example, it will not run on an aarch64 system unless
the kernel reports itself as at least 3.8.0. Accommodate this by
enhancing the existing support for faking the kernel version so
that each target can optionally specify a minimum version: if
the user doesn't force a specific fake version then we will override
with the minimum required version only if the real host kernel
version is insufficient.
Use this facility to let aarch64 report a minimum of 3.8.0.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-21-git-send-email-peter.maydell@linaro.org
Add the AArch64 termbits.h with all the target's termios related
constants and structures.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-20-git-send-email-peter.maydell@linaro.org
[PMM: split out from another patch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-19-git-send-email-peter.maydell@linaro.org
[PMM: pulled out from another patch; don't use is_a64() here;
moved to linux-user from target-arm]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On ARM, linux-user emulation includes NWFPE support for emulating the
ancient FPA floating point coprocessor. This has long since been
superseded by VFP and is only required for legacy binaries. The
AArch64 linux-user target doesn't compile in NWFPE support, so make
sure the relevant code is protected by suitable ifdefs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-18-git-send-email-peter.maydell@linaro.org
This patch adds signal handling for AArch64. The code is based on the
respective source in the Linux kernel.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-17-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-10-git-send-email-john.rigby@linaro.org
[PMM: fixed style nits: tabs, long lines;
pulled target_signal.h in from a later patch; it fits better here]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some syscall handlers have special code for ARM enabled that we don't
need on AArch64. Exclude AArch64 in those cases. In other places we
can share struct definitions with other targets or have to provide our
own.
With this patch applied, most syscall definitions in linux-user should
be sound for AArch64.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-16-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-9-git-send-email-john.rigby@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The AArch64 syscall definitions are all publicly available in the Linux
kernel. Let's add them to our linux-user emulation target, so that we
can easily handle AArch64 syscalls.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-15-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-8-git-send-email-john.rigby@linaro.org
[PMM: changes relating to cpu_loop() removed as they are superseded
by an earlier patch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the main linux-user cpu loop for AArch64. Since AArch64
has a different system call interface, doesn't need to worry
about FPA emulation and may in the future keep the prefetch/data
abort information in different system registers, it's simplest
just to use a completely separate loop from the 32 bit ARM
target, rather than peppering it with ifdefs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-14-git-send-email-peter.maydell@linaro.org
32-bit ARM has a lot of different names for different types of CPUs it supports.
On AArch64, we don't have this, so we really don't want to execute the 32-bit
logic. Stub it out for AArch64 linux-user guests.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-13-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-7-git-send-email-john.rigby@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We want to be able to debug AArch64 guests. So let's add the respective gdb
stub functions and xml descriptions that allow us to do so.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-12-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-6-git-send-email-john.rigby@linaro.org
[PMM: dropped unused fp regs XML for now; moved 64 bit only functions
to new gdbstub64.c; these are hooked up in AArch64CPU, not via
ifdefs in ARMCPU]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We should translate AArch64 mode separately from AArch32 mode. In AArch64 mode,
registers look vastly different, instruction encoding is completely different,
basically the system turns into a different machine.
So let's do a simple if() in translate.c to decide whether we can handle the
current code in the legacy AArch32 code or in the new AArch64 code.
So far, the translation always complains about unallocated instructions. There
is no emulator functionality in this patch!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-11-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-5-git-send-email-john.rigby@linaro.org
[PMM:
* provide no-op versions of a64 functions ifndef TARGET_AARCH64;
this lets us avoid #ifdefs in translate.c
* insert the missing call to disas_a64_insn()
* stash the insn in the DisasContext rather than reloading it in
real_unallocated_encoding()
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch adds all the prerequisites for AArch64 support that didn't
fit into split up patches. It extends important bits in the core cpu
headers to also take AArch64 mode into account.
Add new ARM_TBFLAG_AARCH64_STATE translation buffer flag
indicate an ARMv8 cpu running in aarch64 mode vs aarch32 mode.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-10-git-send-email-peter.maydell@linaro.org
Message-id: 1368505980-17151-4-git-send-email-john.rigby@linaro.org
[PMM:
* rearranged tbflags so AArch64? is bit 31 and if it is set then
30..0 are freely available for whatever makes most sense for that mode
* added version bump since we change VFP migration state
* added a comment about how VFP/Neon register state works
* physical address space is 48 bits, not 64
* added ARM_FEATURE_AARCH64 flag to identify 64-bit capable CPUs
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we're building aarch64-linux-user then the 32 bit CPUs are
all unwanted, because they can't possibly execute the 64 bit
binaries we will be running; disable them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-9-git-send-email-peter.maydell@linaro.org
Create a new AArch64CPU class; all 64-bit capable ARM
CPUs are subclasses of this. (Currently we only support
one, the "any" CPU used by linux-user.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-8-git-send-email-peter.maydell@linaro.org
We want gen_set_pc_im() to work for both AArch64 and AArch32, but
to do this we'll need the DisasContext* so we can tell which mode
we're in, so pass it in as a parameter.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-7-git-send-email-peter.maydell@linaro.org
Correct a few places that were using uint32_t or a 32 bit
only format string to handle something that should be a target_ulong.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-6-git-send-email-peter.maydell@linaro.org
[PMM: split out to separate patch; added gen_goto_tb() and
gen_set_pc_im() dest params to list of things to change.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
