Archipelago » qemu

s390x/kvm: implement floating-interrupt controller device

This patch implements a floating-interrupt controller device (flic)
which interacts with the s390 flic kvm_device.

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>...

trace-events: Fix typo in "offset"

s/offet/offset/

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

usb: add support for microsoft os descriptors

This patch adds support for special usb descriptors used by microsoft
windows. They allow more fine-grained control over driver binding and
adding entries to the registry for configuration.

As this is a guest-visible change the "msos-desc" compat property...

Merge remote-tracking branch 'kraxel/tags/pull-usb-1' into staging

Improvements for usb3 bulk stream (usb core, xhci).
Bugfixes for uas emulation.
Add remote wakeup support for ehci.
Add suspend support for xhci.
Misc minor tweaks and fixes.

1. gpg: Signature made Thu 28 Nov 2013 11:44:49 PM PST using RSA key ID D3E87138...

block: add bdrv_aio_write_zeroes

This will be used by the SCSI layer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

console: Replace conditional debug messages by trace methods

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

ehci: implement port wakeup

Update portsc register and raise irq in case a suspended
port is woken up, so remote wakeup works on our ehci ports.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

Merge remote-tracking branch 'mjt/trivial-patches' into staging

1. By Stefan Weil (8) and others
2. Via Michael Tokarev
• mjt/trivial-patches:
  tests/.gitignore: ignore test-throttle
  exec: Fix broken build for MinGW (regression)
  kvm: Fix compiler warning (clang)...

kvm: fix traces to use %x instead of %d

KVM request types are normally defined using hex constants but QEMU traces
print decimal values instead, which is not very convenient.

This changes the request type format from %d to %x.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>...

Merge remote-tracking branch 'kraxel/usb.88' into staging

1. By Gerd Hoffmann (10) and Marcel Apfelbaum (1)
2. Via Gerd Hoffmann
• kraxel/usb.88:
  usb/dev-hid: Modified usb-tablet category from Misc to Input
  Revert "usb-hub: report status changes only once"...

usb-hub: add tracepoint for status reports

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

xhci: add port to slot_address tracepoint

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

pci: add config space access traces

This adds pci_cfg_read and pci_cfg_write traces for config spaces
accesses.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Xen PV Device

Introduces a new Xen PV PCI device which will act as a binding point for
PV drivers for Xen.
The device has parameterized vendor-id, device-id and revision to allow to
be configured as a binding point for any vendor's PV drivers.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>...

trace-events: Fix up source file comments

They're all wrong since (at least) Paolo's big source tree
reorganization. Need to shuffle some event declarations around to
keep them under the correct source file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>...

block: add basic backup support to block driver

backup_start() creates a block job that copies a point-in-time snapshot
of a block device to a target block device.

We call backup_do_cow() for each write during backup. That function
reads the original data from the block device before it gets...

exec: eliminate qemu_put_ram_ptr

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

osdep: fix qemu_anon_ram_free trace (+ fix compilation on 32 bit hosts)

Commit e7a09b92b70786f9e8c5fbf787e0248c6ebbe707 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:...

osdep: introduce qemu_anon_ram_free to free qemu_anon_ram_alloc-ed memory

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....

kvm-all: add kvm_run_exit tracepoint

This patch enable us to know exit reason of KVM_RUN. It will help us
know where the trouble is caused.

Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

pvscsi: fix compilation on 32 bit hosts

This fixes the following error:
In file included from qemu/include/trace.h:4:0,
from trace/generated-events.c:3:
./trace/generated-tracers.h: In function ‘trace_pvscsi_get_sg_list’:
./trace/generated-tracers.h:4271:9: error: format ‘%lu’ expects argument of...

scsi: VMWare PVSCSI paravirtual device implementation

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>

use libusb for usb-host

Reimplement usb-host on top of libusb.
Reasons to do this:

(1) Largely rewritten from scratch, nice opportunity to kill historical
     cruft.
 (2) Offload usbfs handling to libusb.
 (3) Have a single portable code base instead of bsd + linux variants....

console: gui timer fixes

Make gui update rate adaption code in gui_update() actually work.
Sprinkle in a tracepoint so you can see the code at work. Remove
the update rate adaption code in vnc and make vnc simply use the
generic bits instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

hw/vmware_vga.c: various vmware vga fixes.

Hardcode depth to 32 bpp. It effectively was that way before because
that is the default surface depth, this just makes it explicit in the
code.

Rename depth to new_depth to make it consistent with the new_width +...

xhci: remove unimplemented printfs

Replace them with a tracepoint, so they don't spam stderr by default.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

vl: add runstate_set tracepoint

This patch enables us to know RunState transition. It will be userful
for investigation when the trouble occured in special event such like
live migration, shutdown, suspend, and so on.

Signed-off-by: Kazuya Saito <saito.kazuya@jp.fujitsu.com>...

qcow2: Factor out handle_copied()

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

console: rework DisplaySurface handling [vga emu side]

Decouple DisplaySurface allocation & deallocation from DisplayState.
Replace dpy_gfx_resize + dpy_gfx_setdata with a dpy_gfx_replace_surface
function.

This handles the graphic hardware emulation.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

Add search path support for qemu data files.

This patch allows to specify multiple directories where qemu should look
for data files. To implement that the behavior of the -L switch is
slightly different now: Instead of replacing the data directory the...

scsi: do not call scsi_read_data/scsi_write_data for a canceled request

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

s390: Add channel I/O instructions.

Provide handlers for (most) channel I/O instructions.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

s390: Add new channel I/O based virtio transport.

Add a new virtio transport that uses channel commands to perform
virtio operations.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

mirror: support arbitrarily-sized iterations

Yet another optimization is to extend the mirroring iteration to include more
adjacent dirty blocks. This limits the number of I/O operations and makes
mirroring efficient even with a small granularity. Most of the infrastructure...

block: implement dirty bitmap using HBitmap

This actually uses the dirty bitmap in the block layer, and converts
mirroring to use an HBitmapIter.

Reviewed-by: Laszlo Ersek <lersek@redhat.com> (except block/mirror.c parts)
Reviewed-by: Eric Blake <eblake@redhat.com>...

add hierarchical bitmap data type and test cases

HBitmaps provides an array of bits. The bits are stored as usual in an
array of unsigned longs, but HBitmap is also optimized to provide fast
iteration over set bits; going from one bit to the next is O(logB n)...

fw_cfg: Use void *, size_t instead of uint8_t *, uint32_t for blobs

Many callers pass size_t, which gets silently truncated to uint32_t.
Harmless, because all practical sizes are well below 4GiB. Clean it
up anyway. Size overflow now fails assertions.
...

Merge branch 'master' of git://git.qemu.org/qemu into prep-up

Conflicts:
hw/Makefile.objs
hw/ppc_prep.c

Signed-off-by: Andreas Färber <andreas.faerber@web.de>

dataplane: add virtio-blk data plane code

virtio-blk-data-plane is a subset implementation of virtio-blk. It only
handles read, write, and flush requests. It does this using a dedicated
thread that executes an epoll(2)-based event loop and processes I/O...

spice-qemu-char: add spiceport chardev

Add a new spice chardev to allow arbitrary communication between the
host and the Spice client via the spice server.

Examples:

This allows the Spice client to have a special port for the qemu
monitor:

... -chardev spiceport,name=org.qemu.monitor,id=monitorport...

ehci: handle dma errors

Starting with commit 1c380f9460522f32c8dd2577b2a53d518ec91c6d dma
transfers can actually fail. This patch makes ehci keep track
of the busmaster bit in pci config space, by setting/clearing the
dma_context pointer. Attempts to dma without context will result...

hw/qxl: qxl_send_events: nop if stopped

Added a trace point for easy logging.

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=870972

Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

xhci: add port trace points

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

aio: add generic thread-pool facility

Add a generic thread-pool. The code is roughly based on posix-aio-compat.c,
with some changes, especially the following:

- use QemuSemaphore instead of QemuCond;

- separate the state of the thread from the return code of the worker...

uhci: Verify queue has not been changed by guest

According to the spec a guest can unlink a qh, and then as soon as frindex
has changed by 1 since the unlink, assume it is idle and re-use it. However
for various reasons, we cannot simply consider a qh as unlinked if we've not...

mirror: introduce mirror job

This patch adds the implementation of a new job that mirrors a disk to
a new image while letting the guest continue using the old image.
The target is treated as a "black box" and data is copied from the
source to the target in the background. This can be used for several...

qmp: add block-job-pause and block-job-resume

Add QMP commands matching the functionality.

Paused jobs cannot be canceled without first resuming them. This
ensures that I/O errors are never missed by management. However, an
optional force argument can be specified to allow that....

block: add live block commit functionality

This adds the live commit coroutine. This iteration focuses on the
commit only below the active layer, and not the active layer itself.

The behaviour is similar to block streaming; the sectors are walked
through, and anything that exists above 'base' is committed back down...

hw/qxl: support client monitor configuration via device

Until now we used only the agent to change the monitor count and each
monitor resolution. This patch introduces the qemu part of using the
device as the mediator instead of the agent via virtio-serial....

qxl: add trace-event for QXL_IO_LOG

Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>