Two instances, both spotted by Coverity. In one, two blocks were
swapped. In the other, the check is not needed anymore.
Cc: qemu-stable@nongnu.org
Cc: qemu-trivial@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit a4cc73d629)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
We are currently setting the PCI hole to start at HVM_BELOW_4G_RAM_END,
that is 0xf0000000.
Start the PCI hole at 0xe0000000 instead, that is the same value used by
pc_init1 and qemu-xen-traditional.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: qemu-stable@nongnu.org
(cherry picked from commit 9f24a8030a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Remove the OSS support for OpenBSD. The OSS API has not been usable
for quite some time.
Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
(cherry picked from commit 4f6ab397b6)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
The code used to walk IA-32e page-tables, and possibly PAE page-tables,
uses the bit mask ~0xfff to get the next PML4E/PDPTE/PDE/PTE address.
However, as we use a uint64_t to store the resulting address, that mask
gets expanded to 0xfffffffffffff000 which not only ends up selecting
reserved bits but also selects the XD bit (execute-disable) which
happens to be enabled by Windows 8, causing qemu_get_ram_ptr() to abort.
This commit fixes that problem by replacing ~0xfff by a correct mask
that only selects the address bit range (ie. bits 51:12).
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit fbc2ed9518)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
git shortlog from 1.7.2.1
Asias He (2):
virtio-scsi: Pack struct virtio_scsi_{req_cmd,resp_cmd}
virtio-scsi: Set _DRIVER_OK flag before scsi target scanning
Kevin O'Connor (1):
Cache boot-fail-wait to avoid romfile access after POST.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 6683d7bc27)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This reverts commit a5519b42cf.
Breaks "make bios" in roms/ as the kconfig version in seabios doesn't
support olddefconfig. Must have been be totally untested.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 19cd090e17)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
The implementation of the ATA FLUSH command invokes a flush at the block
layer, which may on raw files on POSIX entail a synchronous fdatasync().
This may in some cases take so long that the SLES 11 SP1 guest driver
reports I/O errors and filesystems get corrupted or remounted read-only.
Avoid this by setting BUSY_STAT, so that the guest is made aware we are
in the middle of an operation and no ATA commands are attempted to be
processed concurrently.
Addresses BNC#637297.
Suggested-by: Gonglei (Arei) <arei.gonglei@huawei.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit f68ec8379e)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Fill unset CharDriverState->filename with the backend name, so
'info chardev' will return at least the chardev type. Don't
touch it in case the chardev init function filled it already,
like the socket+pty chardevs do for example.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 60d95386ab)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This fixes a regression introduced by:
commit 62fc403f11
Author: Igor Mammedov <imammedo@redhat.com>
Date: Mon Apr 29 18:54:13 2013 +0200
target-i386: Attach ICC bus to CPU on its creation
X86CPU should have parent bus so it could provide bus for child APIC.
The commit makes it mandatory to pass a valid ICC bus to cpu_x86_create,
but cpu_x86_init just passes NULL to it.
xen_machine_pv uses cpu_x86_init, therefore it has been broken.
This patch fixes the problem by removing the dummy CPU creation
altogether from xen_init_pv, relying on the fact that QEMU can now cope
with a machine without an emulated CPU.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
CC: imammedo@redhat.com
CC: qemu-stable@nongnu.org
(cherry picked from commit 58ee9b0ae0)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
No need for preprocessor conditionals in xen_enabled: xen_allowed is
always defined.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: qemu-stable@nongnu.org
(cherry picked from commit 49fa9881b2)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
object_dynamic_cast_assert used to be tolerant of NULL objects and not
assert. It's clear from the implementation that this is the expected
behavior.
The preceding check of the cast cache dereferences obj however causing
a segfault. Fix by conditionalizing the cast cache logic on obj being
non-null.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Message-id: 8e2bef6a55753869c50bfa32226f7fcf0439ca62.1369183592.git.peter.crosthwaite@xilinx.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 95916abcf4)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Net queues support efficient "receive disable". For example, tap's file
descriptor will not be polled while its peer has receive disabled. This
saves CPU cycles for needlessly copying and then dropping packets which
the peer cannot receive.
rtl8139 is missing the qemu_flush_queued_packets() call that wakes the
queue up when receive becomes possible again.
As a result, the Windows 7 guest driver reaches a state where the
rtl8139 cannot receive packets. The driver has actually refilled the
receive buffer but we never resume reception.
The bug can be reproduced by running a large FTP 'get' inside a Windows
7 guest:
$ qemu -netdev tap,id=tap0,...
-device rtl8139,netdev=tap0
The Linux guest driver does not trigger the bug, probably due to a
different buffer management strategy.
Reported-by: Oliver Francke <oliver.francke@filoo.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 00b7ade807)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
With mapped security models like mapped-xattr and mapped-file, we save the
symlink target as file contents. Now if we ever expose a normal directory
with mapped security model and find real symlinks in export path, never
follow them and return proper error.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
(cherry picked from commit aed858ce10)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
When guest tries to chmod a block or char device file over 9pfs,
the qemu process segfaults. With 9p2000.u protocol we use wstat to
change mode bits and client don't send extension information for
chmod. We need to check for size field to check whether extension
info is present or not.
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Acked-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
(cherry picked from commit c7e587b73e)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Commit e7a09b92b7 added a trace at each
memory freeing, but unfortunately inverted size and pointer when printing
them. Fix trace.
This also led to a compilation error on 32 bit hosts:
In file included from include/trace.h:4:0,
from trace/generated-events.c:3:
./trace/generated-tracers.h: In function ‘trace_qemu_anon_ram_free’:
./trace/generated-tracers.h:64:9: error: format ‘%zu’ expects argument of type
‘size_t’, but argument 3 has type ‘void *’ [-Werror=format]
./trace/generated-tracers.h:64:9: error: format ‘%p’ expects argument of type
‘void *’, but argument 4 has type ‘size_t’ [-Werror=format]
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Message-id: 1369045989-14016-1-git-send-email-hpoussin@reactos.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
On FreeBSD libutil is used for openpty(), but it also provides a hexdump()
which conflicts with QEMU's.
Signed-off-by: Ed Maste <emaste@freebsd.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1368718348-15199-1-git-send-email-emaste@freebsd.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This fixes a problem that after guest panic happens, virsh dump without
--memory-only fails:
ERROR: invalid runstate transition: 'guest-panicked' -> 'finish-migrate'
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1369046780-17498-1-git-send-email-pbonzini@redhat.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When register and open a chardev udp, the backend name should be udp
not dgram, and we do not have backend dgram in the chardev list. This
patch makes the new qapi udp backend consistent with the original
udp device.
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Message-id: 1369032665-18159-2-git-send-email-lilei@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Commit 215e47b9 enabled TRIM by default, which revealed a bug in TRIM
support for the IDE macio emulation driver, introduced in d353fb72.
The call to dma_bdrv_io() is using a wrong opaque of type IDEState
instead of DBDMA_io. This patch fixes that.
Fixes LP#1179104
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
First we need to clear the bit and then we set the given value.
Instruction ADDSC sets the bit and instruction ADDWC uses this bit.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This change makes sure that modifications of pos field in the DSPControl
register do not trash other bits in the register. This bug can be triggered
with the additional test case in mips32-dsp/extpdp.c in this commit.
In addition to this, this change corrects incorrect calculation of the mask
for EXTPDP.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
The mask for EXTP instruction when size=31 has not been correctly
calculated.
The test (mips32-dsp/extp.c) has been extended to include the case that
triggers the issue.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* mdroth/qga-pull-2013-05-13:
qga: unlink just created guest-file if fchmod() or fdopen() fails on it
qga: distinguish binary modes in "guest_file_open_modes" map
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit 7161082c8d.
Reverting this patch fixes a divide-by-zero error in qemu that can be
fairly reliably triggered by doing block migration. In this case, the
configuration/error was:
source: temp/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -L temp-bios
-M pc-i440fx-1.4 -m 512M -kernel boot/vmlinuz-x86_64 -initrd
boot/test-initramfs-x86_64.img.gz -vga std -append seed=1234 -drive
file=disk1.img,if=virtio -drive file=disk2.img,if=virtio -device
virtio-net-pci,netdev=net0 -netdev user,id=net0 -monitor
unix:/tmp/vm-hmp.sock,server,nowait -qmp
unix:/tmp/vm-qmp.sock,server,nowait -vnc :100
16837 Floating point exception(core dumped)
target: temp/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -L temp-bios
-M pc-i440fx-1.4 -m 512M -kernel boot/vmlinuz-x86_64 -initrd
boot/test-initramfs-x86_64.img.gz -vga std -append seed=1234 -drive
file=target_disk1.img,if=virtio -drive file=target_disk2.img,if=virtio
-device virtio-net-pci,netdev=net0 -netdev user,id=net0 -incoming
unix:/tmp/migrate.sock -monitor
unix:/tmp/vm-hmp-incoming.sock,server,nowait -qmp
unix:/tmp/vm-qmp-incoming.sock,server,nowait -vnc :101
Receiving block device images
20 %
21 %
load of migration failed
This revert potentially re-introduces a bug that was present in 1.4,
but fixes a prevalent issue with block migration so we should revert
it for now and take an updated patch later.
Conflicts:
migration.c
* fixed up to remove logic introduced in 7161082c while leaving
changes in HEAD intact
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Message-id: 1368739544-31021-1-git-send-email-mdroth@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch reverts part of 5e3bc735d9.
Paolo Bonzini wrote this patch and commented:
"WSAEventSelect is edge-triggered and the event will not be signaled if
the socket handler does not consume all the data in the socket buffer."
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1368718561-7816-3-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
pollfds_fill() and pollfds_poll() translate GPollFD to rfds/wfds/xfds
for sockets on win32. select(2) is the underlying system call which is
used to monitor sockets for activity.
Currently file descriptors that monitor G_IO_ERR will be included in
both rfds and wfds. As a result, select(2) will report writability on
file descriptors where we only really wanted to monitor readability
(with errors).
slirp_pollfds_poll() hit this issue: UDP sockets are blocking sockets so
we hang in sorecvfrom() when G_IO_ERR is set due to the socket being
writable (we only wanted to check for readability).
This patch fixes the slirp_pollfds_poll() hang.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1368718561-7816-2-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This adds virtio_bus_get_dev_path to fix migration id string which is wrong
since the virtio refactoring.
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1368723967-21050-1-git-send-email-fred.konrad@greensocs.com
Cc: mdroth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
# By Michael Roth (1) and Zhangleiqiang (1)
# Via Luiz Capitulino
* luiz/queue/qmp:
qapi: fix leak in unit tests
qmp: fix handling of cmd with Equals in qmp-shell
Message-id: 1368625179-27962-1-git-send-email-lcapitulino@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
On Mac OS X ppc, altivec.h defines "vector", leading to build breakage
when used as variable name, e.g. in tracing code.
Fix this by undefining identifiers after altivec.h inclusion.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Message-id: 1368632771-4328-1-git-send-email-andreas.faerber@web.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The test case passes on big endian hosts now (tested on ppc64)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1368622839-7084-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Although we try our best to automatically detect broken versions
of Linux which assume the old broken IRQ mapping we used to implement
for our model of the Versatile PCI controller, it turns out that
some particularly new kernels manage to outwit the autodetection.
We therefore provide a property for enabling the old broken IRQ
mapping, so that if users happen to have such a kernel they can
work around its deficiencies with the command line option:
-global versatile_pci.broken-irq-mapping=1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1368545616-22344-4-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Newer versatilepb kernels still don't get the IRQ mapping right
for the PCI controller, but they get it differently wrong (they add
a fixed +64 offset to everything they write to PCI_INTERRUPT_LINE).
Update the autodetection to handle these too, and include a more
detailed comment on the various different behaviours that might
be present.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1368545616-22344-3-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This reverts commit 5f37ef92b7.
It turns out that some kernels incorrectly depend on the
old QEMU behaviour of not putting the host PCI bridge device
where the hardware puts it, because they use a swizzling IRQ
mapping which is incorrect but happens to match up with old
broken QEMU when the slot number mod 4 is zero. Since we
start PCI devices at 11, if we put the host bridge at 29
then the first real PCI device goes at 11 and doesn't work.
Not putting the host bridge at 29 means it defaults to 11,
so the first real PCI device is at 12 and works.
Since continuing with the old behaviour doesn't cause problems
for kernels which do work with hardware, the simplest fix for
this is to revert the change.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1368545616-22344-2-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The latest version of MinGW needs a test for __sync_val_compare_and_swap
to fix a missing symbol linker error.
Reported-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1368301619-32097-2-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Commit 7791dba3ec broke compilation on MacOSX, because it introduced
a new include of util.h. On MacOSX this includes pwd.h which in turn
includes the system uuid/uuid.h, which causes a compile failure if
QEMU was configured without CONFIG_UUID due to a conflict between
the system header and our fallback versions:
block/vdi.c:124:20: error: static declaration of 'uuid_generate'
follows non-static declaration
static inline void uuid_generate(uuid_t out)
^
/usr/include/uuid/uuid.h:63:6: note: previous declaration is here
void uuid_generate(uuid_t out);
^
Fix this breakage by improving configure's check for uuid to work on
MacOSX (where there is no need to link in a separate libuuid).
Note that if the user explicitly runs configure with '--disable-uuid'
on MacOSX then QEMU will fail to compile.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1368563799-22755-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The ledstate should be compared before modifiers updated,
otherwise the ledstate would be the same as current_led_state.
Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1368606040-11950-1-git-send-email-lilei@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This forwards the name and the type of virtio-net-x to fix the bad
behaviour of "info network" command.
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1368619970-23892-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This adds virtio_net_set_netclient_name, which is used to set the
name and type shown in "info network" command.
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1368619970-23892-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
qmp_output_get_qobject() increments the qobject's reference count. Since
we currently pass this straight into qobject_to_json() so we can feed
the data into a QMP input visitor, we never actually free the underlying
qobject when qmp_output_visitor_cleanup() is called. This causes leaks
on all of the QMP serialization tests.
Fix this by holding a pointer to the qobject and decref'ing it before
returning from qmp_deserialize().
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
qmp: fix handling of cmd with equal mark in qmp-shell
qmp-shell splits the argument and value of input command
by equal mark("="). But there are commands whose values
include equal mark themselves, and the json built by
qmp-shell will not correct. For example, when using NBD as
the target of block-backup command, the input
"block-backup target=nbd+unix:///drive0?socket=/tmp/nbd.sock"
will fail, because the json built will be as follows:
{
"execute":"block-backup",
"arguments":{"target":"nbd+unix:///drive0?socket"}
}
Fix it by joining the sections split by equal mark excluding the
first section in __build_cmd function when the length of sections
is larger than two.
Signed-off-by: zhangleiqiang <zhangleiqiang@huawei.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
# By Kevin Wolf
# Via Stefan Hajnoczi
* stefanha/block:
block: Add hint to -EFBIG error message
qcow2: Catch some L1 table index overflows
Message-id: 1368543269-29784-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The limit of qcow2 files at least depends on the cluster size. If the
image format has a cluster_size option, suggest to increase it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This catches the situation that is described in the bug report at
https://bugs.launchpad.net/qemu/+bug/865518 and goes like this:
$ qemu-img create -f qcow2 huge.qcow2 $((1024*1024))T
Formatting 'huge.qcow2', fmt=qcow2 size=1152921504606846976 encryption=off cluster_size=65536 lazy_refcounts=off
$ qemu-io /tmp/huge.qcow2 -c "write $((1024*1024*1024*1024*1024*1024 - 1024)) 512"
Segmentation fault
With this patch applied the segfault will be avoided, however the case
will still fail, though gracefully:
$ qemu-img create -f qcow2 /tmp/huge.qcow2 $((1024*1024))T
Formatting 'huge.qcow2', fmt=qcow2 size=1152921504606846976 encryption=off cluster_size=65536 lazy_refcounts=off
qemu-img: The image size is too large for file format 'qcow2'
Note that even long before these overflow checks kick in, you get
insanely high memory usage (up to INT_MAX * sizeof(uint64_t) = 16 GB for
the L1 table), so with somewhat smaller image sizes you'll probably see
qemu aborting for a failed g_malloc().
If you need huge image sizes, you should increase the cluster size to
the maximum of 2 MB in order to get higher limits.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
We switched from qemu_memalign to mmap() but then we don't modify
qemu_vfree() to do a munmap() over free(). Which we cannot do
because qemu_vfree() frees memory allocated by qemu_{mem,block}align.
Introduce a new function that does the munmap(), luckily the size is
available in the RAMBlock.
Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This is preparatory to the introduction of a separate freeing API.
Reported-by: Amos Kong <akong@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Message-id: 1368454796-14989-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This fixes the Home/End keys in the monitor using the GTK frontend.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1368526554-15866-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Paolo Bonzini