The scsi layer may return us more data than the guests wants to have.
Handle this by just ignoring the extra bytes and calling the
{read,write}_data callback to finish the request.

Seen happening in real life with some extended inquiry command.
With this patch applied the linux kernel stops reseting the device
once at boot.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Change usb_msd_send_status() to take a pointer to the status packet
instead of writing the status to s->usb_buf which might not point
to the correct location.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add high speed support to the usb mass storage device.  With this patch
applied the linux kernel recognises the usb storage device as highspeed
capable device and suggests to connect it to a highspeed port instead of
the uhci.  Tested with both uhci and (not-yet submitted) ehci.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add support for device_qualifier and other_speed_config descriptors.
These are used to query the "other speed" configuration of usb 2.0
devices, i.e. in high-speed mode they return the full-speed
configuration and visa versa.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add usb_desc_attach() which sets up the device according to the speed
the usb port is able to handle.  This function can be hooked into the
handle_attach callback.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add handle_attach() callback to USBDeviceInfo which is called by the
generic package handler when the device is attached to the usb bus
(i.e. plugged into a port).
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add a field to usb ports indicating the speed(s) they are
able to handle.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

It would be nice to have some way to signal our hid devices support
remote wakeup.  There is a descriptor bit for that of course.  Problem
with using is one is that older qemu versions used to set the bit even
though they did *not* support remote wakeup.  Bummer.

This patch changes the serial number of our hid devices from "1" to "42"
to signal "it is safe to enable remote wakeup".  The serial number was
choosen because it isn't used for anything and it is available in sysfs
so it is easy to match it using udev rules like this:

ACTION=="add", SUBSYSTEM=="usb", \
	ATTR{product}=="QEMU USB Tablet", ATTR{serial}=="42", \
	RUN+="usb_enable_autosuspend %p"
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add usb_wakeup() call to the hid driver so remote wakeup actually works.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch makes the usb hub handle remote wakeup requests from devices
properly by updating the port status register and forwarding the wakeup
to the upstream port.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add support for remote wakeup to the UHCI adapter.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add wakeup callback to port ops for remote wakeup handling.
Also add a usb_wakeup() function for devices which want
trigger a remote wakeup.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add separate detach callback to USBPortOps, split
uhci/ohci/musb/usbhub attach functions into two.

Move common code to the usb_attach() function, only
the hardware-specific bits remain in the attach/detach
callbacks.

Keep track of the port it is attached to for each usb device.

[ v3: fix tyops in usb-musb.c ]
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Create USBPortOps struct, move the attach function to that struct.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch moves setting and clearing the remote_wakeup feature
bit (via USB_REQ_{SET,CLEAR}_FEATURE) to common code.  Also
USB_REQ_GET_STATUS handling is moved to common code.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds fields to the USBDevice struct for the current
speed (hard-wired to full speed for now) and current device
configuration.  Also a init function is added which inializes
these fields.  This allows USB_REQ_{GET,SET}_CONFIGURATION
handling to be moved to common code.

For most drivers the conversion is trivial ad they support a single
configuration only anyway.  One exception is bluetooth where some
device-specific setup code runs after get/set configuration.  The
other is usb-net which actually has two configurations so the
the code to check for the active configuration has been adapted.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

USB_REQ_SET_ADDRESS handling is identical in *all* emulated devices.
Move it to common code.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb network driver over to the
new descriptor infrastructure.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

If a serial number is present for the drive fill it into the usb
serialnumber string descriptor.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch allows to set usb descriptor strings per device instance.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb hub driver over to the
new descriptor infrastructure.

It also removes the nr_ports variable and MAX_PORTS define and
introduces a NUM_PORTS define instead.  The numver of ports was
(and still is) fixed at 8 anyway.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb bluetooth driver over to the
new descriptor infrastructure.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb wavom driver over to the
new descriptor infrastructure.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb storage driver over to the
new descriptor infrastructure.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb serial drivers (serial, braille) over to the
new descriptor infrastructure.

Note that this removes the freely configurable vendor and product id
properties.  I think the only reason this was configurable is that the
only difference between the serial and the braille device is the
vendor+product id.  Of course the serial and braille devices keep their
different IDs, but they can't be overritten from the command line any
more.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the usb hid drivers (keyboard, mouse, tablet) over to the
new descriptor infrastructure.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds hw/usb-desc.[ch] files.  They carry data structures
for various usb descriptors and helper functions to generate usb
packets from the structures.

The intention is to have a internal representation of the device
desription which is more usable than the current char array blobs,
so we can have common code handle common usb device emulation using
the device description.

The usage of this infrastructure is optional for usb drivers as there
are cases such as pass-through where it probably isn't very useful.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Some Linux kernels seems to implement ITLB/UTLB flushing through by
writing all TLB entries through the memory mapped interface instead
of writing one to MMUCR.TI.

Implement memory mapped ITLB write interface so that such kernels can
boot. This fixes https://bugs.launchpad.net/bugs/700774 .
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Commit 92d675d1 triggered uninitialized
variables warning with GCC 4.6. Fix them by adding zero initializers.
Acked-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

This patch replaces explicit bswaps with endianness hints to the
mmio layer.

CC: Alexander Graf <agraf@suse.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

956a3e6b introduced a bug concerning
reset bit for port 92.

Since the keyboard output port and port 92 are not compatible anyway,
let's separate them.
Reported-by: NPeter Lieven <pl@dlh.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
--
v2: added reset handler and VMState

Commit d85d0d38 introduces a regression
with Windows ME that leads to a division by 0 and a crash.

It uses the color expansion rop with the source pitch set to 0. This is
something allowed, as the manual explicitely says "When the source of
color-expand data is display memory, the source pitch is ignored.".

This patch fixes this regression by computing sx, sy and others
variables only if they are going to be used later, that is for a plain
copy ROP. It basically consists in moving code.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

On big endian hosts, the curses interface is unusable: the emulated
graphic card only displays garbage, while the monitor interface displays
nothing (or rather only spaces).

The curses interface is waiting for data in native endianness, so
console_write_ch() should not do any conversion. The conversion should
be done when reading the video buffer in hw/vga.c. I supposed this
buffer is in little endian mode, though it's not impossible that the
data is actually in guest endianness. I currently have no big endian
guest to way (they all switch to graphic mode immediately).
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The device path used for migration is currently broken for
for all devices behind a nested bridge.

Replace this by a hierarchical list of slot/function numbers, walking
the path from root down to device. Add :00 after the domain number
so that if there are no nested bridges, this is compatible
with what we have now.

Note: as pointed out by Gleb, using openfirmware paths
might be cleaner, doing this would break compatibility though,
and the IDs used are not guest or user visible at all,
so breaking the compatibility is probably not worth it.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

The s390 target doesn't compile out of the box anymore. This patch fixes all
the obvious glitches that got introduced in the last few weeks.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

introduce pcie_aer_inject_error command.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch introduce a helper function to get PCIDevice from qdev id.
This function will be used later.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch exports qdev_find_recursive() for later use.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

by introducing pci-stub.c, eliminate QMP dependency on core PCI code
rquired by query-pci command.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Support flr: trigger device reset on flr config write.
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>