Options starting in "backing." are passed to the backing file now. If
you don't need to specify the filename for the backing file, you can add
it on the command line instead of in the image file:
$ qemu-nbd -t /tmp/test.img
$ qemu-img create -f qcow2 empty.qcow2 1G
$ qemu-system-x86_64 -drive file=empty.qcow2,backing.file.driver=nbd,\
backing.file.host=localhost
Note that this doesn't override the backing filename from the image. If
the image has one, this will fail because NBD doesn't want the options
and a filename at the same time.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Specifying the wrong driver could fail an assertion:
$ qemu-system-x86_64 -drive file.driver=qcow2,file=x
qemu-system-x86_64: block.c:721: bdrv_open_common: Assertion `file !=
((void *)0)' failed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
$QEMU_PROG happens to be 'qemu' in my setup, so this sed command
replaces a bit too much. Restrict it to the start of the line and to
when it's followed by a colon, i.e. the form used by error messages.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
bdrv_write_compressed() does not allow requests that span the end of the
device. Therefore it is useless to zero-pad the last cluster and
thereby exceed the end of the device.
Let image formats handle zero-padding the final compressed cluster, if
necessary.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Compression in qcow requires image length to be a multiple of the
cluster size. Lift this requirement by zero-padding the final cluster
when necessary. The virtual disk size is still not cluster-aligned, so
the guest cannot access the zero sectors.
Note that this is almost identical to the qcow2 version of this code.
qcow2's compression code is drawn from qcow.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Compression in qcow2 requires image length to be a multiple of the
cluster size. Lift this requirement by zero-padding the final cluster
when necessary. The virtual disk size is still not cluster-aligned, so
the guest cannot access the zero sectors.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fix failures to compile introduced by recent console commits
1dbfa00503, 81c0d5a6) which removed is_graphic_console() and
vga_hw_update() without updating the cocoa UI backend to match.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Fixed EFLAGS corruption by ROR r8/r16 instruction located at the end of the TB.
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Drop all the infrastructure for taddr properties (ie ones which
are 'hwaddr' sized). These are now unused, and any further desired
use would be rather questionable since device properties shouldn't
generally depend on a type that is conceptually variable based on
the target CPU. 32 or 64 bit integer properties should be used instead
as appropriate for the specific device.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The sysbus-ohci dma-address property is declared as a HEX64
property, not a TADDR, so use the correct setter for it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Andreas Färber <afaerber@suse.de>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* 'arm-devs.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
hw/versatile_pci: Drop unnecessary vpb_pci_config_addr()
versatile_pci: Expose PCI memory space to system
arm/realview: Fix mapping of PCI regions
versatile_pci: Implement the PCI controller's control registers
versatile_pci: Implement the correct PCI IRQ mapping
versatile_pci: Put the host bridge PCI device at slot 29
versatile_pci: Use separate PCI I/O space rather than system I/O space
versatile_pci: Change to subclassing TYPE_PCI_HOST_BRIDGE
versatile_pci: Update to realize and instance init functions
versatile_pci: Expose PCI I/O region on Versatile PB
versatile_pci: Fix hardcoded tabs
* 'target-arm.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
target-arm: Correctly restore FPSCR
target-arm: Add some missing CPU state fields to VMState
target-arm: port ARM CPU save/load to use VMState
target-arm: Reinsert missing return statement in ARM mode SRS decode
* 'linux-user-for-upstream' of git://git.linaro.org/people/rikuvoipio/qemu:
linux-user: fix setgroups/getgroups for non-UID16 archs
linux-user: fix undefined shift in copy_to_user_fdset
linux-user: change do_semop to return target errno when unsuccessful
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Asias He <asias@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The WWPN specified in configfs is passed to "-device vhost-scsi-pci".
The tgpt field of the SET_ENDPOINT ioctl is obsolete now, so it is not
available from the QEMU command-line. Instead, I hardcode it to zero.
Changes in Patch-v2:
- Add vhost_scsi_get_features() in order to determine feature bits
supports by host kernel (mst + nab)
- Re-enable usage of DEFINE_VIRTIO_COMMON_FEATURES, and allow
EVENT_IDX to be disabled by host in vhost_scsi_get_features()
- Drop unused hotplug bit in DEFINE_VHOST_SCSI_PROPERTIES
Changes in Patch-v1:
- Set event_idx=off by default (nab, thanks asias)
- Disable hotplug feature bit for v3.9 tcm_vhost kernel code, need to
re-enable in v3.10 (nab)
- Update to latest qemu.git/master HEAD
Changes in WIP-V3:
- Drop ioeventfd vhost_scsi_properties (asias, thanks stefanha)
- Add CONFIG_VHOST_SCSI (asias, thanks stefanha)
- Add hotplug feature bit
Changes in WIP-V2:
- Add backend guest masking support (nab)
- Bump ABI_VERSION to 1 (nab)
- Set up set_guest_notifiers (asias)
- Set up vs->dev.vq_index (asias)
- Drop vs->vs.vdev.{set,clear}_vhost_endpoint (asias)
- Drop VIRTIO_CONFIG_S_DRIVER check in vhost_scsi_set_status (asias)
Howto:
Use the latest seabios, at least commit b44a7be17b
git clone git://git.seabios.org/seabios.git
make
cp out/bios.bin /usr/share/qemu/bios.bin
qemu -device vhost-scsi-pci,wwpn=naa.6001405bd4e8476d,event_idx=off
...
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Asias He <asias@redhat.com>
[ Rebase on top of VirtIOSCSICommon patch, fix bugs in feature
negotiation and irqfd masking - Paolo ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch refactors existing virtio-scsi code into VirtIOSCSICommon
in order to allow virtio_scsi_init_common() to be used by both internal
virtio_scsi_init() and external vhost-scsi-pci code.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Asias He <asias@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
# By Stefan Weil (3) and others
# Via Stefan Hajnoczi
* stefanha/trivial-patches:
m25p80: Remove bogus include of devices.h
ssh: Remove unnecessary use of strlen function.
block/ssh: Add missing gcc format attributes
linux-user: change do_semop to return target errno when unsuccessful
w64: Fix compiler warnings (wrong format specifier)
Remove unneeded type casts
virtio.h: drop unused function prototypes
bswap: fix compiler warning
Message-id: 1366371241-23430-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This adds a new device that we can use for testing PCI PIO and MMIO, with and
without ioeventfd in different configurations. FAST_MMIO will be added if/when
kvm supports it. Also included are minor cleanups in kvm APIs that it needs.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.13 (GNU/Linux)
iQEcBAABAgAGBQJRbIJQAAoJECgfDbjSjVRpQuoH/RfMHb6YYfsuwJKUsjCKxhdr
695YqNsBLmh7E/+wr1dwUsKrMGSF97VSGAIPeX0u4wwP6jrORhA9iycCevXYlh/S
O7RTcePqVEQrwnMX5rOAEWGARVzg4hAT8i4Pdza1A+gBvaO/WLZIVJfUOHBAZNL7
2TTDymfixipErcTcxckITHfaShn9ajZgt/Yo8oVX70VqklWU+OEU/tYEXmvTC0H3
bTuTU3vpeAlCubF0AHHZqWA9g7myrKMCxwv4LWx7gmQGXoyQesy4s5C9KMrld1On
RovLw0REbtjB2xGjAj3g82ESK5eoi295Th/E7Fu1NJNYyDyfhxB7/cnbRa+Wpsg=
=jvZE
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
pci: add pci test device
This adds a new device that we can use for testing PCI PIO and MMIO, with and
without ioeventfd in different configurations. FAST_MMIO will be added if/when
kvm supports it. Also included are minor cleanups in kvm APIs that it needs.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 15 Apr 2013 05:42:24 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Michael S. Tsirkin
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
pci: add pci test device
kvm: support non datamatch ioeventfd
kvm: support any size for pio eventfd
kvm: remove unused APIs
Message-id: cover.1366272004.git.mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
# By Jan Kiszka (4) and Marcelo Tosatti (1)
# Via Marcelo Tosatti
* qemu-kvm/uq/master:
vmxcap: Update according to SDM of January 2013
target-i386: kvm: save/restore steal time MSR
vmxcap: Report APIC register emulation and RDTSCP control
vmxcap: Augment reported information
vmxcap: Open MSR file in unbuffered mode
Message-id: cover.1366253306.git.mtosatti@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Because dev->actual is uint32_t, the expression 'dev->actual <<
VIRTIO_BALLOON_PFN_SHIFT' is truncated to 32 bits. This overflows when
dev->actual >= 1048576.
To reproduce:
1. Start a VM with a QMP socket and 5G of RAM
2. Connect to the QMP socket, negotiate capabilities and issue:
{ "execute":"balloon", "arguments": { "value": 1073741824 } }
3. Watch for BALLOON_CHANGE QMP events, the last one will incorretly be:
{ "timestamp": { "seconds": 1366228965, "microseconds": 245466 },
"event": "BALLOON_CHANGE", "data": { "actual": 5368709120 } }
To fix it this commit casts it to ram_addr_t, which is ram_size's type.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
(qemu) sendkey ctrl_r-scroll_lock-scroll_lock
Executing this command could not let Windows guest panic, it caused by
the wrong order of releasing keys. This problem was introduced by
commit e4c8f004c5.
The right release order should be starting from last item.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Use the helper functions to save and restore the FPSCR, so that
we correctly propagate rounding mode and flushing behaviour into
the float_status fields. This also allows us to stop saving the
vector length/stride fields separately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
A number of CPU state fields were accidentally omitted from
our migration state: some OMAP specific cp15 registers, and
some related to state for load/store exclusive insns. Add them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Port the ARM CPU save/load code to use VMState. Some state is
saved in a slightly different order to simplify things -- for
example arrays are saved one after the other rather than 'striped',
and we always save all 32 VFP registers even if the CPU happens
to only have 16.
Use one subsection for each feature. This means that we don't need to
bump the version field each time that a new feature gets introduced.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: fixed conflicts, updated to use cpu_class_set_vmsd(), updated
with new/removed fields since original patch, changed to use custom
VMStateInfo for cpsr rather than presave/postload hooks, corrected
subsection names so vmload doesn't fail]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since patch
81465888c5
target-arm: factor out handling of SRS instruction
the ARM mode SRS instruction has not worked in QEMU.
The problem is a missing return directive that was removed in the
refactoring, so after decoding the instruction, qemu would fall through
to generate an UNDEF exception for an illegal instruction.
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Drop the vpb_pci_config_addr() function -- it is unnecessary since
the size of the memory regions means the hwaddr is always within
the 24 bit size. (This function was probably a leftover from when
read/write functions were called with absolute addresses rather
than relative ones.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
The VersatilePB's PCI controller exposes the PCI memory space to the
system via three regions controlled by the mapping control registers.
Implement this so that guests can actually use MMIO-BAR PCI cards.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Fix the mapping of the PCI regions for the realview board, which were
all incorrect. (This was never noticed because the Linux kernel
doesn't actually include a PCI driver for the realview boards.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
The versatile_pci PCI controller has a set of control registers which
handle the mapping between PCI and system address spaces. Implement
these registers (though for now they have no effect since we don't
implement mapping PCI space into system memory at all).
The most natural order for our sysbus regions has the control
registers at the start, so move all the others down one.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Implement the correct IRQ mapping for the Versatile PCI controller; it
differs between realview and versatile boards, but the previous QEMU
implementation was correct only for the first PCI card on a versatile
board, since we weren't swizzling IRQs based on the slot number.
Since this change would otherwise break any uses of PCI on Linux kernels
which have an equivalent bug (since they have effectively only been
tested against QEMU, not real hardware), we implement a mechanism
for automatically detecting those broken kernels and switching back
to the old mapping. This works by looking at the values the kernel
writes to the PCI_INTERRUPT_LINE register in the config space, which
is effectively the interrupt number the kernel expects the device
to be using.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On real hardware the host bridge appears as a PCI device in slot 29,
so make QEMU put its host bridge in that slot too.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Rather than overloading the system I/O space (which doesn't even make
any sense on ARM) for PCI I/O, create an memory region in the PCI
controller and use that to represent the I/O space.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Change versatile_pci to subclass TYPE_PCI_HOST_BRIDGE and generally
handle PCI in a more QOM-like fashion.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Update the Versatile PCI controller to use a realize function rather
than SysBusDevice::init. To reflect the fact that the 'realview_pci'
class is taking most of its implementation from 'versatile_pci' (and
to make the QOM casts work) we make 'realview_pci' a subclass of
'versatile_pci'.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
Comments in the QEMU source code claim that the version of the PCI
controller on the VersatilePB board doesn't support the PCI I/O
region, but this is incorrect; expose that region, map it in the
correct location, and drop the misleading comments.
This change removes the only currently implemented difference
between the realview-pci and versatile-pci models; however there
are other differences in not-yet-implemented functionality, so we
retain the distinction between the two device types.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
There is just one line in this source file with a hardcoded tab
indent, so just fix it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paul Brook <paul@codesourcery.com>
I think in the early revisions of this we had an instantiation helper
for the device in devices.h. This was later removed and this header was
left over. Removed
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Now gcc will check whether format string and variable arguments match.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
do_semop() is called from two places, and one of these fails to convert
return error to target errno when semop fails. This patch changes the
function to always return target errno in case of an unsuccessful call.
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
GetLastError() returns a DWORD value which is unsigned long,
so the correct format specifier is %lu.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
cpu_physical_memory_read, cpu_physical_memory_write take any pointer
as 2nd argument without needing a type cast.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The bswap functions use memcpy but the bswap.h header itself does not seem to
include it in some configuration such as cross compiling for powerpc64
on x86_64 machine.
The patch explicitly includes string.h.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This patch follows MST's recommendation to move checks for
vhost_verify_ring_mappings() -> cpu_physical_memory_map() operations
from MemoryListener->region_[add,del]() -> vhost_set_memory() into
final MemoryListener->commit() -> vhost_commit() callback.
It addresses the case where virtio-scsi vq ioport RAM re-mapping
to read-only SeaBIOS ROM triggers a cpu_physical_memory_map()
NIL MemoryRegionSection pointer failure.
Also save vhost_dev->mem_changed_[start,end]_addr values in
vhost_set_memory() for final ranges_overlap checks. (Thanks Paolo!)
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Asias He <asias@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Yan Vugenfirer <yan@daynix.com>
[ Rename files to vmw_pvscsi, fix setting of hostStatus in
pvscsi_request_cancelled - Paolo ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A verify command is not an actual read (we do not implement
compare mode) and thus does not have an AIOCB attached. Do
not crash in scsi_dma_complete.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
