This patch adds almost complete support for the Milkymist system-on-chip
(http://www.milkymist.org).

Additional to running bare metal applications, booting a linux kernel with
initrd is supported.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds wrappers for easy creation of the qdev devices.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's VGA framebuffer.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's simple UART.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's texture mapping unit. For fast
computation this model needs hardware accelerated 3D graphics support
(OpenGL). There is no graphical output, all computations belong to internal
framebuffers only.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch introduce a new config option CONFIG_OPENGL.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's System Controller core. The model
has the following features:
 - support for shutting down and restarting the board
 - provide two timers and GPIO
 - provide registers for system identification and reading the boards
   capabilities
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's SoftUSB core. This model differ
from the real hardware in its functionality. The real hardware consits of a
tiny freely programmable microcontroller which controls the USB ports. For
simplicity reasons, this model emulates only keyboard and mouse input
devices, eg. input events translates directly to the corresponding expected
messages.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's Programmable FPU.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's minimal Ethernet MAC.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for Milkymist's memory card core.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for the Milkymist's High Performance Dynamic Memory
Controller. This is just a dumb model without any functionality. While the
real hardware acts for example as a bridge between software and hardware
for sending SDRAM commans, this model will only eat up these commands and
always returns the expected hardware states, eg. PLL locked etc.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This patch adds support for the Milkymist AC97 compatible sound output and
input core.
Signed-off-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This reverts commit 9bcfc7da.

S390x uses the QuadU type, so let's enable it.
Signed-off-by: NUlrich Hecht <uli@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

S390x user emulation can do nptl. Reflect this in the configure script.
Signed-off-by: NUlrich Hecht <uli@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

This patch enables the instruction disassembler when using an
S390x target.
Signed-off-by: NUlrich Hecht <uli@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Commit 6b331efb broke the s390 proxy version
of virtio-serial by only taking its PCI brother into account.

So let's adjust s390-virtio-serial the same way as its PCI counterpart, making
it compile and work again.
Signed-off-by: NAlexander Graf <agraf@suse.de>
CC: Amit Shah <amit.shah@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

During Jan's rework of the generic KVM layer, he added some more error checks
and actually aborted if something went wrong. Unfortunately, one of the s390
internal error codes slipped through, aborting the VM without needing to.

This patch fixes booting of S390x virtual machines in KVM.
Signed-off-by: NAlexander Graf <agraf@suse.de>
CC: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

We have two different virtio buses: pci and s390. The abstraction path
taken in qemu is to have generic aliases for each device type in the
architecture specific qdev devices.

So let's make use of these aliases whenever we can and define them
whenever we can.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The ivshmem depends on PCI and KVM, not only KVM. Reflect this
in the Makefile, so we don't get build errors on s390x.
Signed-off-by: NAlexander Graf <agraf@suse.de>
CC: Cam Macdonell <cam@cs.ualberta.ca>
CC: Juan Quintela <quintela@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

arpa/inet.h is not available for w32, so commit
edbb2136 breaks
w32 compilations.

This is fixed by using qemu_socket.h.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Reviewed-by: NAlon Levy <alevy@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

SDL library initialization mangles signal handlers, so QEMU should
register them after initializing SDL. This was the case before and code
even have a comment about that. Fix it to be so again.
Signed-off-by: NGleb Natapov <gleb@redhat.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Tidy up the message printed when qemu exits due to a signal, so that
it's clearer where the message is coming from and that it's not just
stray debug output.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Acked-by: NGleb Natapov <gleb@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The common checksum functions were moved to net/checksum.c in commit
7200ac3c but the original net-checksum.c
was never deleted from the source tree.  Remove it now since all users
of the checksum functions link against net/checksum.o and net-checksum.c
is not even compiled anymore.
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Rx and Tx descriptors are 16 byte aligned, so the lower bits are
ignored by real hardware. In fact, they always read back as zero on real
hardware, but probably nobody relies on that.
Signed-off-by: NKevin Wolf <mail@kevin-wolf.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

When the VM goes into stop state while there is a gdb frontend attached,
it makes sense to inform gdb about this fact and at least a bit about
the stop reason. Basically, all stops are interesting except for the
temporary VMSTOP_SAVE/LOADVM.

The patch maps the relevant VMSTOP reasons on unique and more or less
associatable signals that gdb understands.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

These errors were reported by cppcheck:

tests/cris/check_openpf1.c:30: error:
Mismatching allocation and deallocation: f

tests/cris/check_openpf2.c:13: error:
Mismatching allocation and deallocation: f

tests/cris/check_stat3.c:16: error:
Buffer overrun possible for long cmd-line args

tests/cris/check_stat4.c:18: error:
Buffer overrun possible for long cmd-line args

The first two are obvious coding errors (fopen needs fclose, not close).

The last two may seem less important (nobody will start test code
with an argument of more than 1022 characters which raises a buffer
overrun). Fixing them nevertheless helps with static code checks
like those done by cppcheck.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

- the trigger mode is edge at first
- During initializatoin, the interrupt is raised as edge which is masked.
  The corresponding bit of irr is set.
- Then the mode is switched to level and it's unmasked.
- the bit of irr is set, so the interrupt is raised repeatedly by
  ioapic_service().
- OS considers that the irq line is broken and falls back to polling mode.

This patch fixes the issues.
After raising edige, clear the bit of irr.

> Bringing up interface eth0:
> Determining IP information for eth0...irq 18: nobody cared (try booting with the "irqpoll" option)
> Pid: 4126, comm: ip Not tainted 2.6.38-rc7 #1
> Call Trace:
>  <IRQ>  [<ffffffff8105b009>] ? __report_bad_irq+0x38/0x87
>  [<ffffffff8105b177>] ? note_interrupt+0x11f/0x188
>  [<ffffffff8105bacf>] ? handle_fasteoi_irq+0xa7/0xd1
>  [<ffffffff810046ff>] ? handle_irq+0x83/0x8c
>  [<ffffffff81003eb9>] ? do_IRQ+0x48/0xaf
>  [<ffffffff81300513>] ? ret_from_intr+0x0/0xe
>  [<ffffffff81031ab8>] ? __do_softirq+0x4f/0x114
>  [<ffffffff81002d6c>] ? call_softirq+0x1c/0x28
>  [<ffffffff81004647>] ? do_softirq+0x33/0x68
>  [<ffffffff810316fb>] ? irq_exit+0x36/0x38
>  [<ffffffff81015f2c>] ? smp_apic_timer_interrupt+0x88/0x96
>  [<ffffffff81002853>] ? apic_timer_interrupt+0x13/0x20
>  <EOI>  [<ffffffff810177ed>] ? __ioapic_set_affinity+0x68/0x7c
>  [<ffffffff813000f0>] ? _raw_spin_unlock_irqrestore+0x8/0xa
>  [<ffffffff8105a84f>] ? __setup_irq+0x224/0x2cb
>  [<ffffffff8120e3c5>] ? e1000_intr+0x0/0x103
>  [<ffffffff8105a9c7>] ? request_threaded_irq+0xd1/0x114
>  [<ffffffff8120e396>] ? e1000_request_irq+0x34/0x63
>  [<ffffffff8121237d>] ? e1000_open+0x81/0x11f
>  [<ffffffff8129097c>] ? call_netdevice_notifiers+0x45/0x4a
>  [<ffffffff81290d8d>] ? __dev_open+0x97/0xc4
>  [<ffffffff8128e9c5>] ? __dev_change_flags+0xb9/0x13d
>  [<ffffffff81290cc1>] ? dev_change_flags+0x1c/0x51
>  [<ffffffff812d0542>] ? devinet_ioctl+0x26e/0x594
>  [<ffffffff812d174c>] ? inet_ioctl+0x92/0xaa
>  [<ffffffff81281d75>] ? T.1003+0x13/0x32
>  [<ffffffff81282152>] ? sock_ioctl+0x1f2/0x1ff
>  [<ffffffff810ae2d3>] ? do_vfs_ioctl+0x498/0x4e7
>  [<ffffffff81281203>] ? sock_alloc_file+0xb3/0x115
>  [<ffffffff8109f79f>] ? fd_install+0x31/0x5d
>  [<ffffffff810ae364>] ? sys_ioctl+0x42/0x65
>  [<ffffffff81001f3b>] ? system_call_fastpath+0x16/0x1b
> handlers:
> [<ffffffff8120e3c5>] (e1000_intr+0x0/0x103)
> Disabling IRQ #18
Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Replace endianess -> endianness.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Add a model of the ARM Versatile Express board (with A9MPx4
daughterboard).
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Correct the argument and return types for the float<->int conversion helper
functions so that integer arguments and return values are declared as
uint32_t/uint64_t, not float32/float64. This allows us to remove the
hand-rolled functions which were doing bitwise copies between the types
via unions.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NNathan Froyd <froydnj@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use the new softfloat min/max functions to implement the Neon VMAX
and VMIN instructions. This allows us to get the right behaviour
for NaN and negative zero.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Add min and max operations to softfloat. This allows us to implement
propagation of NaNs and handling of negative zero correctly (unlike
the approach of having target helper routines return one of the operands
based on the result of a comparison op).
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Implement ABD by taking the absolute value of the difference
of the operands (as the ARM ARM specifies) rather than by
flipping the order of the operands to the subtract based
on the results of a comparison. The latter approch gives
the wrong answers for some edge cases like negative zero.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Implementing the floating-point versions of VCLE #0 and VCLT #0 by
doing a GT comparison and inverting the result gives the wrong
result if the input is a NaN. Implement as a GT comparison with the
operands swapped instead.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Fix the helper functions implementing the Neon floating point comparison
ops (VCGE, VCGT, VCEQ, VACGT, VACGE) to return the right answer when
one of the values being compared is a NaN.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use the softfloat make_float32 and float32_val macros to convert between
softfloat's float32 type and raw uint32_t types, rather than private
conversion functions.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NNathan Froyd <froydnj@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Add documentation for the usb-ccid device and accompanying two card
devices, ccid-card-emulated and ccid-card-passthru.
Signed-off-by: NAlon Levy <alevy@redhat.com>

This devices uses libcacard (internal) to emulate a smartcard conforming
to the CAC standard. It attaches to the usb-ccid bus. Usage instructions
(example command lines) are in the following patch in docs/ccid.txt. It
uses libcacard which uses nss, so it can work with both hw cards and
certificates (files).
Signed-off-by: NAlon Levy <alevy@redhat.com>

---

changes from v20->v21: (Jes Sorenson review)
 * cosmetics
 * use qemu-thread and qemu_malloc/qemu_free

changes from v19->v20:
 * checkpatch.pl

changes from v18->v19:
 * add qdev.desc
 * backend: drop the enumeration property, back to using a string one.

changes from v16->v17:
 * use PROP_TYPE_ENUM for backend

changes from v15->v16:
 * fix error reporting in initfn
 * bump copyright year
 * update copyright license

changes from v1:
 * remove stale comments, use only c-style comments
 * bugfix, forgot to set recv_len
 * change reader name to 'Virtual Reader'